COOLING SYSTEM
Upgrade your Duramax cooling system with our wide selection of high-quality parts and components. From radiator fans to hose kits, we have everything you need to keep your engine running cool and performing at its best.
Cooling system upgrades are essential for maintaining engine health, especially for LMM or LLY models. Improve your vehicle's performance by investing in a Duramax radiator replacement or an electric fan conversion kit. Our aftermarket cooling parts like upper radiator hoses and coolant solutions are designed to help your engine run cooler and last longer.
At CPP Diesel, we pride ourselves on carrying top brands like Derale and Mishimoto to ensure that you're getting the best quality parts for your Duramax engine. With our fast shipping and exceptional customer service, you can trust us to provide you with the products you need to enhance your cooling system.
Don't let your engine overheat - shop our selection of Duramax electric fans, radiators, and other essential cooling system parts today. If you have any questions or can't find what you're looking for, feel free to reach out to us. Order your Duramax cooling system parts from CPP Diesel and keep your engine running cool.
Cooling system upgrades are essential for maintaining engine health, especially for LMM or LLY models. Improve your vehicle's performance by investing in a Duramax radiator replacement or an electric fan conversion kit. Our aftermarket cooling parts like upper radiator hoses and coolant solutions are designed to help your engine run cooler and last longer.
At CPP Diesel, we pride ourselves on carrying top brands like Derale and Mishimoto to ensure that you're getting the best quality parts for your Duramax engine. With our fast shipping and exceptional customer service, you can trust us to provide you with the products you need to enhance your cooling system.
Don't let your engine overheat - shop our selection of Duramax electric fans, radiators, and other essential cooling system parts today. If you have any questions or can't find what you're looking for, feel free to reach out to us. Order your Duramax cooling system parts from CPP Diesel and keep your engine running cool.
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CPP PRE-MADE BRAIDED FUEL, OIL AND COOLANT HOSES MADE TO ORDER
CPP DIESEL
CPP Pre-Made Braided Fuel, Oil, and Coolant Hoses are the ultimate solution for automotive enthusiasts and professionals seeking tailored performance in their vehicles. Crafted with precision, these hoses are custom-made to order for a variety of...Qty in Cart: 0Quantity:Price:Subtotal: -
MAHLE C33756 COOLANT PIPE O-RING FOR 2017-2020 GM 6.6L DURAMAX ENGINE
MAHLE
$3.29AutoCare brands Id FLHQ AutoCare brand MAHLE Environmentally hazardous material No The MAHLE C33756 Coolant Pipe O-Ring is a crucial component designed specifically for the 2017-2020 GM 6.6L Duramax L5P engines. This high-quality O-ring plays a...$3.29 -
FLEECE FPE-HAR-DMAX-FAN-LML DURAMAX FAN EXTENSION HARNESS (LML)
FLEECE PERFORMANCE
$45.99Our replacement fan extension harness for the 2011-2016 LML Duramax allows you to repair a broken or damaged harness without needing to replace the entire fan assembly. This harness is mounted to the fan assembly and connects to the fan and chassis...$45.99 -
FLEECE FPE-HAR-DMAX-FAN-L5P DURAMAX FAN EXTENSION HARNESS (L5P)
FLEECE PERFORMANCE
$45.99Our replacement fan extension harness for the 2017-2019 L5P Duramax allows you to repair a broken or damaged harness without needing to replace the entire fan assembly. This harness is mounted to the fan assembly and connects to the fan and chassis...$45.99 -
MAHLE GS33752 WATER PUMP GASKET KIT FOR 2001-2010 GM 6.6L DURAMAX ENGINE
MAHLE
$21.80Type a description for this product here...The MAHLE GS33752 Water Pump Gasket Kit is specifically designed for GM 6.6L Duramax engines, covering the LB7, LLY, LBZ, and LMM models manufactured between 2001 and 2010. This high-quality gasket kit is an...$21.80 -
MAHLE C31900 COOLANT THERMOSTAT HOUSING GASKET FOR 2001-2016 GM 6.6L DURAMAX ENGINE
MAHLE
$7.44Item Grade OEM Standard Additional Package Contents None Gasket Material Steel The MAHLE C31900 Coolant Thermostat Housing Gasket is an essential component for maintaining optimal performance in your GM 6.6L Duramax engine, covering the LB7, LLY,...$7.44 -
BOSTECH WP01100 WATER PUMP 2001-2005 GM 6.6L DURAMAX LB7/LLY
BOSTECH FUEL
$104.95Bostech's line of new heavy-duty water pumps are backed by our 24-month unlimited mileage warranty. We offer 50 plus skus covering most diesel engine applications. Our pumps are quality engineered according to the OEM's design and assembled with...$104.95 -
BOSTECH WP01101 WATER PUMP 2006-2010 GM 6.6L DURAMAX LBZ/LMM
BOSTECH FUEL
$119.95Bostech's line of new heavy-duty water pumps are backed by our 24-month unlimited mileage warranty. We offer 50 plus skus covering most diesel engine applications. Our pumps are quality engineered according to the OEM's design and assembled with...$119.95 -
BOSTECH BTS011012 COOLANT TEMPERATURE SENSOR 2001-2009 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM | 1995-2000 GM 6.5L DIESEL
BOSTECH FUEL
$18.85Engine Coolant Temperature Sensor Brand: BT Power Condition: New Limited 24-Month Unlimited mileage warranty Wiring Pigtail Included Engine Fitment: Various General Motors The BOSTECH BTS011012 Coolant Temperature Sensor is designed to...$18.85 -
PPE 119020010 EGR TO CAB COOLANT HOSE FOR 01-10 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$11.69Designed FOR factory fit, these durable 5mm performance silicone hoses are a perfect upgrade when your worn coolant hoses need replacing.Features: 1-ply heat-resistant internal fibers Durable, 5 mm thick silicone O.D. size: 24mm (15/16”) Best...$11.69 -
PPE 119020011 ENGINE TO CAB COOLANT HOSE FOR 11-16 GM DURAMAX 6.6L LML
PACIFIC PERFORMANCE ENGINEERING
$10.79Designed for factory fit, these durable 5mm performance silicone hoses are a perfect upgrade when your worn coolant hoses need replacing. GM Equivalent P/N: 20984280 Use with 119020009 1999-2016 GM Stainless Steel Heater Hose Connector...$10.79 -
PPE 119021004 EGR TO CAB COOLANT HOSE (CA) FOR 02 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$10.79Designed FOR factory fit, these durable 5mm performance silicone hoses are a perfect upgrade when your worn coolant hoses need replacing.Features: Silicone EGR to Cab Coolant Hose - Black 1-ply heat-resistant internal fibers Durable, 5mm thick silicone...$10.79 -
PPE 119021007 EGR TO CAB COOLANT HOSE FOR 04.5-10 GM 6.6L DURAMAX LLY/LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$12.14Designed FOR factory fit, these durable 5mm performance silicone hoses are a perfect upgrade when your worn coolant hoses need replacing. Inner diameter of hose is 5/8 in GM Equivalent P/N: 97333410 Use with 119020009 1999-2016 GM...$12.14 -
PPE 119021010 EGR TO CAB COOLANT HOSE FOR 07.5-10 DURAMAX 6.6L LMM
PACIFIC PERFORMANCE ENGINEERING
$15.29Designed FOR factory fit, these durable 5mm performance silicone hoses are a perfect upgrade when your worn coolant hoses need replacing.Features: Silicone EGR to Cab Coolant Hose 1-ply heat-resistant internal fibers Durable, 5mm thick silicone Sold...$15.29 -
PPE 119021011 EGR TO CAB COOLANT HOSE FOR 11-16 GM DURAMAX 6.6L LML
PACIFIC PERFORMANCE ENGINEERING
$11.65Designed for factory fit, these durable 5mm performance silicone hoses are a perfect upgrade when your worn coolant hoses need replacing. GM Equivalent P/N: 12639068 Use with 119020009 1999-2016 GM Stainless Steel Heater Hose Connector. Features:...$11.65 -
PPE 119021100 COOLANT HOSE KIT-RED FOR 01-05 GM DURAMAX 6.6L LB7/LLY
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose T fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's performance Silicone Coolant Hose Kit. Perfect FOR your...$269.99 -
PPE 119021300 COOLANT HOSE KIT-RED FOR 11-16 GM DURAMAX 6.6L LML
PACIFIC PERFORMANCE ENGINEERING
$269.99The PPE 119021300 Coolant Hose Kit in striking red is tailored specifically FOR the FOR 11-16 GM Duramax 6.6L LML engine, offering a superior alternative to the factory coolant hose system. Say goodbye to the risk of cracking and coolant leaks with this...$269.99 -
PPE 119023100 COOLANT HOSE KIT-GREEN FOR 01-05 GM DURAMAX 6.6L LB7/LLY
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose T fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's performance Silicone Coolant Hose Kit. Perfect FOR your...$269.99 -
PPE 119023200 COOLANT HOSE KIT-GREEN FOR 06-10 GM DURAMAX 6.6L LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose T fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's performance Silicone Coolant Hose Kit. Perfect FOR your...$269.99 -
PPE 119023300 COOLANT HOSE KIT-GREEN FOR 11-16 GM DURAMAX 6.6L LML
PACIFIC PERFORMANCE ENGINEERING
$269.99Replacing worn or faulty coolant hoses in your FOR 11-16 GM Duramax 6.6L LML is made easy with the PPE 119023300 Coolant Hose Kit in vibrant green. Say goodbye to the risk of coolant loss and cracked junctions that typically come with factory T fittings,...$269.99 -
PPE 119024100 COOLANT HOSE KIT-YELLOW FOR 01-05 GM DURAMAX 6.6L LB7/LLY
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose T fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's performance Silicone Coolant Hose Kit. Perfect FOR your...$269.99 -
PPE 119024200 COOLANT HOSE KIT-YELLOW FOR 06-10 GM DURAMAX 6.6L LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose T fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's performance Silicone Coolant Hose Kit. Perfect FOR your...$269.99 -
PPE 119024300 COOLANT HOSE KIT-YELLOW FOR 11-16 GM DURAMAX 6.6L LML
PACIFIC PERFORMANCE ENGINEERING
$269.99Elevate the performance and reliability of your FOR 11-16 GM Duramax 6.6L LML diesel truck with the PPE 119024300 Coolant Hose Kit in striking yellow. Say goodbye to cracked plastic T fittings and hello to enhanced durability and efficiency. Designed to...$269.99 -
PPE 119025100 COOLANT HOSE KIT-ORANGE FOR 01-05 GM DURAMAX 6.6L LB7/LLY
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose T fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's performance Silicone Coolant Hose Kit. Perfect FOR your...$269.99 -
PPE 119025200 COOLANT HOSE KIT-ORANGE FOR 06-10 GM DURAMAX 6.6L LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose T fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's performance Silicone Coolant Hose Kit. Perfect FOR your...$269.99 -
PPE 119025300 COOLANT HOSE KIT-ORANGE FOR 11-16 GM DURAMAX 6.6L LML
PACIFIC PERFORMANCE ENGINEERING
$269.99Upgrade the coolant system in your FOR 11-16 GM Duramax 6.6L LML diesel truck with the PPE 119025300 Coolant Hose Kit in vibrant orange. Say goodbye to the issues of cracked plastic T fittings with this high-performance silicone coolant hose kit from PPE...$269.99 -
PPE 116454025 COOLANT OVERFLOW TANK FOR 01-07 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$269.99The PPE Coolant Overflow Tank will hold up to one gallon of coolant. Hand-cut 6061 aluminum material provides more efficient cooling properties. This tank utilizes the location of your second battery and plastic water overflow tank. Easy installation...$269.99 -
PPE 116454075 COOLANT OVERFLOW TANK FOR 07.5-10 DURAMAX 6.6L LMM
PACIFIC PERFORMANCE ENGINEERING
$269.99The PPE Coolant Overflow Tank will hold up to one gallon of coolant. Hand-cut 6061 aluminum material provides more efficient cooling properties. This tank utilizes the location of your second battery and plastic water overflow tank. Easy installation...$269.99 -
PPE 116454080 HOSE KIT FOR COOLANT TANK UNIVERSAL
PACIFIC PERFORMANCE ENGINEERING
$53.99The PPE Coolant Overflow Tank Hose Kit to complements your overflow tank install.Features: Hose Kit FOR Coolant Overflow 3/8 Inch NPT to 1/2 Inch Brass Hose Barb 3/4 Inch NPT to 1 Inch Brass Hose Barb Includes Hoses Easy installation Sold As A Kit The...$53.99 -
PPE 119000500 ENGINE COOLANT THERMOSTAT HOUSING FOR 01-07 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$269.99Corrosion is often seen on this stock part as they age out. This can lead to blockage and reduced cooling capability. Replace your corroded OEM thermostat housing bridge with the PPE high-strength, cast-aluminum Thermostat Housing. This high-quality...$269.99 -
PPE 119000510 ENGINE COOLANT THERMOSTAT HOUSING - SINGLE SENSOR FOR 07.5-10 GM 6.6L DURAMAX LMM
PACIFIC PERFORMANCE ENGINEERING
$269.99Corrosion is often seen on this stock part as they age out. This can lead to blockage and reduced cooling capability. Replace your corroded OEM thermostat housing bridge with the PPE high-strength, cast-aluminum Thermostat Housing. This high-quality...$269.99 -
PPE 119000515 ENGINE COOLANT THERMOSTAT HOUSING - DUAL SENSOR FOR 07.5-10 GM 6.6L DURAMAX LMM
PACIFIC PERFORMANCE ENGINEERING
$269.99Corrosion is often seen on this stock part as they age out. This can lead to blockage and reduced cooling capability. Replace your corroded OEM thermostat housing bridge with the PPE high-strength, cast-aluminum Thermostat Housing. This high-quality...$269.99 -
PPE 119000530 THERMOSTAT HOUSING COVER RAW FOR 01-04 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$107.99Rust is the enemy of your coolant system. Upgrade your rusty OEM thermostat housing cover with a Cast 304 Stainless Steel Thermostat Housing Cover from PPE. This direct bolt-on replacement adds style and function to your engine bay. The stainless steel...$107.99 -
PPE 119000533 THERMOSTAT HOUSING COVER POLISHED FOR 01-04 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$107.99Rust is the enemy of your coolant system. Upgrade your rusty OEM thermostat housing cover with a Cast 304 Stainless Steel Thermostat Housing Cover from PPE. This direct bolt-on replacement adds style and function to your engine bay. The stainless steel...$107.99 -
PPE 119000540 THERMOSTAT HOUSING COVER RAW FOR 04-10 GM 6.6L DURAMAX LLY/LMM
PACIFIC PERFORMANCE ENGINEERING
$107.99Rust is the enemy of your coolant system. Upgrade your rusty OEM thermostat housing cover with a Cast 304 Stainless Steel Thermostat Housing Cover from PPE. This direct bolt-on replacement adds style and function to your engine bay. The stainless steel...$107.99 -
PPE 119000543 THERMOSTAT HOUSING COVER LLY LBZ LMM - POLISHED FOR 04-10 GM 6.6L DURAMAX LLY/LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$107.99Rust is the enemy of your coolant system. Upgrade your rusty OEM thermostat housing cover with a Cast 304 Stainless Steel Thermostat Housing Cover from PPE. This direct bolt-on replacement adds style and function to your engine bay. The stainless steel...$107.99 -
PPE 119000630 COOLANT BYPASS TUBE - WATER PUMP TO THERMOSTAT HOUSING FOR 01-10 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$116.99Features: Fully-polished 304 stainless steel CNC machined tube end Comes with two Viton O-rings VEHICLE FITMENT: 2005 GMC Sierra 3500HD 8 Cyl 6.6 Liter Turbo 2005 GMC Sierra 2500HD 8 Cyl 6.6 Liter Turbo 2005 Chevrolet Silverado 3500HD 8...$116.99 -
PPE 119000730 COOLANT BYPASS TUBE - WATER PUMP TO THERMOSTAT HOUSING FOR 01-10 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$116.99Specifically designed FOR use with the factory water pump. Fully polished 304 stainless steel construction looks great and prevents corrosion. The OEM mild steel pipe rusts and eventually leaks. Features: Fully-polished 304 stainless steel CNC...$116.99 -
PPE 119000820 COOLANT BLOCK-OFF PLATE - BILLET ALUMINUM - BLACK FOR 01-20 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML/L5P
PACIFIC PERFORMANCE ENGINEERING
$53.99The OEM block off plate uses a gasket and can leak over time. The PPE billet block off plate is thicker and uses an O-ring seal. The O-ring is made from Viton more maximum longevity. The PPE billet block off plate installs using the OEM fasteners. PART...$53.99 -
PPE 119001000 ENGINE COOLANT RETURN PIPE-304SS RAW FOR 01-04 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$89.99Specifically designed FOR use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking. Allows FOR installation of factory...$89.99 -
PPE 119001030 ENGINE COOLANT RETURN PIPE-304SS POLISHED FOR 01-04 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$98.99Specifically designed FOR use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking. Allows FOR installation of factory...$98.99 -
PPE 119001100 ENGINE COOLANT RETURN PIPE-304SS RAW FOR 04-05 GM DURAMAX 6.6L LLY
PACIFIC PERFORMANCE ENGINEERING
$89.99Specifically designed FOR use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking. Allows FOR installation of factory...$89.99 -
PPE 119001130 ENGINE COOLANT RETURN PIPE-304SS POLISHED FOR 04-05 GM DURAMAX 6.6L LLY
PACIFIC PERFORMANCE ENGINEERING
$98.99Specifically designed FOR use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking. Allows FOR installation of factory...$98.99 -
PPE 119001200 ENGINE COOLANT RETURN PIPE 304SS RAW FOR 06-07 GM DURAMAX 6.6L LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$89.99Specifically designed FOR use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking. Allows FOR installation of factory...$89.99 -
PPE 119001230 ENGINE COOLANT RETURN PIPE-304SS POLISHED FOR 06-10 GM DURAMAX 6.6L LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$98.99Specifically designed FOR use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking. Allows FOR installation of factory...$98.99 -
PPE 119020009 HEATER HOSE CONNECTOR-STAINLESS STEEL FOR 01-16 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$22.49The plastic HVAC heater hose connectors are a common failure point when the older part fatigues from heat and vibration. This PPE Stainless Steel Heater Hose Connector will provide excellent durability and corrosion resistance for the life of your...$22.49 -
PPE 119030100 COOLANT TUBE PUMP TO OIL COOLER 304 STAINLESS STEEL RAW FOR 01-23 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML/L5P
PACIFIC PERFORMANCE ENGINEERING
$197.99The PPE 119030100 Coolant Tube Pump to Oil Cooler is a top-quality performance upgrade designed FOR the FOR 01-23 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML/L5P models. Crafted from durable 304 stainless steel, this custom coolant pipe boasts superior corrosion...$197.99 -
PPE 119030130 COOLANT TUBE PUMP TO OIL COOLER 304 STAINLESS STEEL POLISHED FOR 01-23 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML/L5P
PACIFIC PERFORMANCE ENGINEERING
$197.99Specifically designed for use in conjunction with the factory oil cooler filter housing. This coolant pipe is custom fabricated with a heavy-duty flange. 304 stainless steel construction prevents corrosion compared with OEM mild steel...$197.99 -
WEHRLI WCF100622 | 2006-2010 LBZ/LMM DURAMAX UPPER COOLANT PIPE
WEHRLI CUSTOM FABRICATION
$138.71The WEHRLI WCF100622 Upper Coolant Pipe is the perfect upgrade for your 2006-2010 LBZ/LMM 6.6L Duramax-equipped Chevrolet Silverado or GMC Sierra 2500/3500 HD truck. This aluminum coolant pipe is designed to replace the OEM rubber upper coolant hose,...$138.71 -
CPP DIESEL UNIVERSAL 10IN ELECTRIC 1750 CFM COOLING FAN KIT
CPP DIESEL
$89.95Enhance your vehicle's cooling system with the CPP Diesel 10-inch Electric Cooling Fan Kit, delivering a powerful and efficient solution for maintaining optimal engine temperatures. This versatile 80-watt fan is designed as a default "pusher" fan,...$89.95 -
CPP DIRECT-FIT RADIATOR FOR 11-16 GM 2500/3500HD WITH DURAMAX ENGINE
CPP DIESEL
$524.95Don't just replace the failed radiator in your 2011-2016 GM 6.6L Duramax with a stock replacement, upgrade it with the CPP Direct-Fit Replacement Radiator CPP292. Designed for a simple bolt-on installation, CPP's Radiators look like a factory...$524.95 -
CPP DIESEL ALUMINUM REPLACEMENT RADIATOR FOR 01-05 GM 2500/3500HD WITH DURAMAX ENGINE
CPP DIESEL
$355.95The CPP-0105AL-RAD Aluminum Replacement Radiator presents a robust solution for 2001-2005 GM 2500 and 3500HD models equipped with the Duramax engine. Designed specifically for the rigorous demands of heavy-duty use, this direct-fit replacement...$355.95 -
CPP ALUMINUM RADIATOR FOR 06-10 GM 2500/3500HD WITH DURAMAX ENGINE
CPP DIESEL
$394.95The CPP CPP-0610-ALRAD Aluminum Radiator is an essential upgrade for your 2006-2010 GM 2500/3500HD equipped with a Duramax 6.6L LBZ or LMM engine. This direct-fit replacement radiator is engineered to outperform the factory component, ensuring your...$394.95 -
CPP RADIATOR DRAIN PIPE FOR 06-19 GM 2500/3500HD WITH DURAMAX ENGINE
CPP DIESEL
$59.95Inline Radiator Hose Drain Designed for applications where the radiator does not have a drain valve Splices into the lower radiator hose allowing for easy access to drain your coolant Specifications: 1.5 inches od, 1.25 inches id, 3 inches long, 1/4...$59.95 -
WEHRLI WCF100405 01-05 CHEVROLET 6.6L LB7/LLY DURAMAX THERMOSTAT HOUSING & UPPER COOLANT PIPE KIT
WEHRLI CUSTOM FABRICATION
$459.78The WEHRLI WCF100405 Thermostat Housing and Upper Coolant Pipe Kit for 01-05 Chevrolet 6.6L LB7/LLY Duramax engines is a high-performance upgrade that revolutionizes coolant routing for enhanced engine access and customization options.Crafted from CNC...$459.78 -
WEHRLI WCF100644 11-16 CHEVROLET 6.6L LML DURAMAX TWIN TURBO STYLE COOLANT TANK KIT
WEHRLI CUSTOM FABRICATION
$402.55LML Duramax Fabricated Aluminum Coolant Tank Kit for Twin Turbo Applications mounts on passenger side fender. Does not allow use of passenger side battery in OEM location, must be relocated. -Coolant Tank-Low coolant...$402.55 -
WEHRLI WCF100268 20-22 CHEVROLET-GMC 6.6L L5P DURAMAX OEM PLACEMENT COOLANT TANK KIT
WEHRLI CUSTOM FABRICATION
$509.252020-2025 L5P Duramax Fabricated Aluminum Coolant Tank Kit, mounts in OEM coolant tank location. Dress up your engine bay by replacing the ugly clear plastic coolant reservoir with our custom powder coated fabricated aluminum coolant tank with sight...$509.25 -
WEHRLI WCF100420 06-10 DURAMAX LBZ/LMM THERMOSTAT HOUSING KIT
WEHRLI CUSTOM FABRICATION
$459.78The Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2006-2010 LBZ/LMM 6.6L Duramax replaces the OEM upper radiator hose that normally crosses over the driver side valve cover as well as the coolant return pipe. By changing the coolant...$459.78 -
WEHRLI WCF100424 2006-2010 LBZ/LMM DURAMAX TOP OUTLET BILLET THERMOSTAT HOUSING AND UPPER COOLANT PIPE KIT FOR DUAL CP3
WEHRLI CUSTOM FABRICATION
$459.78The Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2006-2010 LBZ/LMM Duramax replaces the OEM upper radiator hose that normally crosses over the driver side valve cover as well as the coolant return pipe. By changing the coolant...$459.78 -
WEHRLI WCF100472 2001+ CHEVROLET DURAMAX/13-18 6.7L DODGE CUMMINS BILLET ALUMINUM COOLANT TANK CAP - CLEAR
WEHRLI CUSTOM FABRICATION
$37.8318-20PSI Replacement Coolant Tank Cap, Clear Anodized. Used on WCFab Fabricated Coolant Tanks on 2001-2024 Duramax or 2004.5-2007 & 2010-2024 6.7L Cummins. - Replacement Cap for WCFab Coolant Tank- Clear Anodized Finish The WEHRLI WCF100472...$37.83 -
WEHRLI WCF100541 2020-2024 L5P DURAMAX UPPER COOLANT PIPE KIT
WEHRLI CUSTOM FABRICATION
$162.96Upper Coolant Pipe for 2020-2025 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 truck replaces the ugly OEM rubber upper radiator hose with a fabricated aluminum hard pipe powder coated in your color of choice! For use with...$162.96 -
WEHRLI WCF100860 2001-2005 LB7 / LLY DURAMAX UPPER COOLANT PIPE
WEHRLI CUSTOM FABRICATION
$138.71High Flow Intake Bundle Package for 2003-2007 5.9L Cummins. Saves $50.00 vs buying all components individually! This Kit Includes: WCF100544 - 3" Passenger Side Intercooler Pipe WCF100528 - 3.5" Driver Side Intercooler Pipe and Intake Horn Kit WCF100346...$138.71 -
WEHRLI WCF100742 2017-2019 L5P DURAMAX UPPER COOLANT PIPE KIT
WEHRLI CUSTOM FABRICATION
$151.32Aluminum Upper Coolant Pipe for 2017-2019 L5P Duramax replaces the OEM rubber upper coolant hose and comes powder coated color of choice! For use with OEM GM radiator. Aftermarket radiators may cause fitment issues. Replaces the following GM Part...$151.32 -
WEHRLI WCF100696 2011-2016 LML DURAMAX UPPER COOLANT PIPE
WEHRLI CUSTOM FABRICATION
$151.32Aluminum Upper Coolant Pipe for 2011-2016 LML Duramax replaces the OEM rubber upper coolant hose and comes powder coated color of choice! For use with OEM GM radiator! Some aftermarket radiators may cause fitment issues! Replaces the following GM Part...$151.32 -
WEHRLI WCF100647 2011-2016 LML DURAMAX OEM PLACEMENT COOLANT TANK KIT
WEHRLI CUSTOM FABRICATION
$458.81Fabricated Aluminum Coolant Tank Kit for 2011-2016 6.6L Duramax Diesel equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck. Mounts in OEM coolant tank location. Dress up your engine bay by replacing the ugly clear plastic coolant reservoir...$458.81 -
WEHRLI WCF100645 2001-2007 LB7 / LLY / LBZ DURAMAX OEM PLACEMENT COOLANT TANK KIT
WEHRLI CUSTOM FABRICATION
$458.812001-2007 Duramax Fabricated Aluminum Coolant Tank Kit, mounts in OEM coolant tank location. Dress up your engine bay by replacing the ugly clear plastic coolant reservoir with our custom powder coated fabricated aluminum coolant tank with sight glass...$458.81 -
WEHRLI WCF100642 2001-2007 LB7/LLY/LBZ DURAMAX TWIN TURBO COOLANT TANK KIT
WEHRLI CUSTOM FABRICATION
$402.55LB7, LLY, LBZ Duramax Fabricated Aluminum Coolant Tank Kit for Twin Turbo Applications mounts on passenger side fender. Does not allow use of passenger side battery in OEM location, must be relocated. -Coolant Tank-Low coolant...$402.55 -
AFE POWER 46-52041 BLADERUNNER STREET SERIES HIGH CAPACITY ALUMINUM RADIATOR FOR 06-10 GM 6.6 DURAMAX
AFE POWER
$860.48The AFE POWER 46-52041 BladeRunner Street Series High Capacity Aluminum Radiator is designed specifically for GM diesel trucks from 2006 to 2010 with a V8-6.6L (TD) engine, including LLY, LBZ, and LMM models. This exceptional radiator is engineered to...$860.48 -
AFE POWER 46-52031 BLADERUNNER STREET SERIES ALUMINUM RADIATOR FOR 01-05 GM 6.6 DURAMAX
AFE POWER
$860.48The AFE POWER 46-52031 BladeRunner Street Series Aluminum Radiator is designed to elevate your GM diesel truck's cooling performance to a whole new level. Featuring an oversized 2-3/4" thick tube and fin core, this radiator enhances heat dissipation and...$860.48 -
PPE 119020086 1.75" COOLANT DRAIN TUBE SS W/1/4"NPT BUNG UNIVERSAL
PACIFIC PERFORMANCE ENGINEERING
$26.99Coolant Drain Tube - 1.75” - 304 Stainless Steel Now easily drain your cooling system with this painless upgrade. This quick install can be done right in your driveway and adds a service option to any vehicle that doesn't come with a factory...$26.99 -
MISHIMOTO MMRAD-DMAX-11 ALUMINUM RADIATOR 2011-2016 GM DURAMAX 6.6L
MISHIMOTO
$950.95Enhance the cooling performance of your Chevrolet/GMC 6.6L Duramax engine with the Mishimoto MMRAD-DMAX-11 Aluminum Radiator designed for the 2011-2016 models. Crafted from top-notch aircraft-grade aluminum, this high-quality radiator boasts a 100%...$950.95 -
MISHIMOTO MMRAD-DMAX-06 ALUMINUM RADIATOR 2006-2010 GM DURAMAX 6.6L
MISHIMOTO
$905.95The MISHIMOTO MMRAD-DMAX-06 Aluminum Radiator for 2006-2010 GM Duramax 6.6L trucks is the ultimate performance upgrade for your Chevrolet or GMC vehicle. Specifically designed to fit Duramax engines, this radiator is crafted from top-quality...$905.95 -
MISHIMOTO MMRAD-DMAX-01 ALUMINUM RADIATOR 2001-2005 GM DURAMAX 6.6L
MISHIMOTO
$896.95The Mishimoto MMRAD-DMAX-01 Aluminum Radiator is the ultimate cooling solution for Chevrolet/GMC 6.6L Duramax models from 2001 to 2005. Crafted with precision and expertise, this performance radiator is constructed from aircraft-grade aluminum, ensuring...$896.95 -
PPE 119000100 COOLANT BLOCK OFF PLUG FOR 07.5-10 GM 6.6L DURAMAX LMM
PACIFIC PERFORMANCE ENGINEERING
$35.99Coolant Block-Off Plug Duramax (LMM) Coolant Block-Off Plug by PPE®. Finish: Undefined. PPE is where engineering, design, and quality come together in perfect FORm. This superior product was crafted using modern manufacturing methods and high-grade...$35.99 -
PPE 116002060 LARGE DIAMETER (12.7MM) TURBO COOLANT HOSE FOR 06-10 GM DURAMAX 6.6L LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$8.99Time and under hood temperatures make the factory turbo coolant hose material brittle. Plus, if you replace your turbo or remove this small coolant hose, the factory rubber typically de FORms or tears.The PPE Turbo Coolant Hose performance Silicone Hose...$8.99 -
PPE 119022100 PERFORMANCE SILICONE UPPER AND LOWER COOLANT HOSE KIT BLUE FOR 01-05 GM 6.6L DURAMAX LB7
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose “T” fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE’s performance Silicone Coolant Hose...$269.99 -
PPE 114001050 COOLANT TUBE KIT FOR INTERNAL OIL COOLER DELETE FOR 01-16 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$179.99The PPE 114001050 Coolant Tube Kit is a precision-engineered solution designed to complement the PPE Internal Oil Cooler Delete Kit FOR FOR 01-16 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML engines. Crafted from high-quality 304 stainless steel, this kit ensures...$179.99 -
PPE 119022300 SILICONE UPPER AND LOWER COOLANT HOSE KIT-GREEN FOR 11-16 GM 6.6L DURAMAX LML
PACIFIC PERFORMANCE ENGINEERING
$269.99The PPE 119022300 Silicone Upper and Lower Coolant Hose Kit in green is the perfect solution FOR replacing your factory coolant hose system prone to cracking and coolant loss. Specifically designed FOR the FOR 11-16 GM 6.6L Duramax LML engine, this kit...$269.99 -
PPE 116002045 SMALL DIAMETER (10 MM) TURBO COOLANT HOSE FOR 01-05 GM DURAMAX 6.6L LB7/LLY
PACIFIC PERFORMANCE ENGINEERING
$8.99Turbo Coolant Hose Small Diameter 10mm LB7 LLY Time and under hood temperatures make the factory turbo coolant hose material brittle. Plus, if you replace your turbo or remove this small coolant hose, the factory rubber typically de FORms or tears.The...$8.99 -
PPE 119021200 COOLANT HOSE KIT-RED FOR 06-10 GM DURAMAX 6.6L LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose T fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's performance Silicone Coolant Hose Kit. Perfect FOR your...$269.99 -
PPE 119022200 SILICONE UPPER AND LOWER COOLANT HOSE KIT-BLUE FOR 06-10 GM DURAMAX 6.6L LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose T fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's performance Silicone Coolant Hose Kit. Perfect FOR your...$269.99 -
PPE 119020100 COOLANT HOSE KIT-BLACK FOR 01-05 GM DURAMAX 6.6L LB7/LLY
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose T fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with >PPEs performance Silicone Coolant Hose Kit. Perfect FOR...$269.99 -
PPE 119020200 COOLANT HOSE KIT-BLACK FOR 06-10 GM DURAMAX 6.6L LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose T fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with >PPEs performance Silicone Coolant Hose Kit. Perfect FOR...$269.99 -
PPE 119020300 SILICONE UPPER & LOWER COOLANT HOSE KIT-(BLACK) FOR 11-16 GM 6.6L DURAMAX LML
PACIFIC PERFORMANCE ENGINEERING
$269.99Factory coolant hose “T” fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE’s Performance Silicone Coolant Hose...$269.99 -
PPE 116111810 COOLANT TUBE OEM CUT AND WELD FOR 07.5-10 DURAMAX 6.6L LMM
PACIFIC PERFORMANCE ENGINEERING
$179.99PPEs modified coolant tube FOR LMM Duramax 6.6L is designed FOR use with PPE Up-pipes and Manifolds. Our experts cut, reposition and weld the coolant tube FOR proper clearance. The coolant that flows through the tube provides heat to the heater...$179.99 -
MISHIMOTO MMTS-CHV-01DL LOW TEMPERATURE THERMOSTATS (SET OF 2) 2001-2016 GM DURAMAX 6.6L
MISHIMOTO
$87.95The Mishimoto MMTS-CHV-01DL Low Temperature Thermostats are the ideal cooling solution for Chevrolet/GMC Duramax 6.6L engines from 2001 to 2016. Engineered to activate at a lower temperature compared to OEM thermostats, this set of two thermostats...$87.95 -
MISHIMOTO MMTS-CHV-01DH HIGH TEMPERATURE THERMOSTATS (SET OF 2) 2001-2016 GM DURAMAX 6.6L
MISHIMOTO
$85.95The Mishimoto MMTS-CHV-01DH High Temperature Thermostats (Set of 2) for 2001-2016 GM Duramax 6.6L engines are engineered to optimize the performance of your Chevrolet or GMC Duramax truck. These high-temperature thermostats are designed to activate at a...$85.95 -
MISHIMOTO MMFAN-MOUNT Electric Fan Mounting Kit
MISHIMOTO
$13.95The Mishimoto MMFAN-MOUNT Electric Fan Mounting Kit offers a versatile solution for securely mounting a Mishimoto electric fan to any Mishimoto aluminum radiator. Specifically designed for custom applications, this universal fan mount kit provides the...$13.95 -
FLEECE FPE-DMAX-CBOP DURAMAX BILLET COOLANT BLOCK OFF PLATE 2001-2017
FLEECE PERFORMANCE
$55.002001-2016 Duramax Billet Coolant Block Off Plate (Replaces GM P/N: 97941204) OE covers are prone to leakage as the gaskets dry out and factory cast covers corrode. Our billet coolant block off plate with an integral O-ring is an upgrade for your rear...$55.00 -
FLEECE FPE-LML-CP DURAMAX LML REAR ENGINE COVER COOLANT RETURN PLUG
FLEECE PERFORMANCE
$19.99Whether you're putting on an aftermarket turbo or deleting the EGR system on your LML, this coolant return plug will help you put the finishing touches on the job. The plug is made from high quality 6061 aluminum, anodized black, and laser etched with...$19.99 -
FLEECE FPE-TURBO-THERM DURAMAX TURBO THERMOSTAT DELETE PLUG
FLEECE PERFORMANCE
$37.95The Fleece Performance Duramax Turbo Thermostat Delete Plug is designed to eliminate the stock coolant feed line when installing a non-water cooled turbocharger on your Duramax. It provides clearance for larger intake plumbing, is CNC machined from...$37.95