FASS FUEL SYSTEMS & PARTS
Enhance your diesel engine's performance with our extensive selection of Duramax FASS fuel systems and parts. Whether you are a diesel enthusiast or looking to upgrade your engine, our premium FASS fuel systems are designed to deliver superior performance and efficiency.
From lift pumps to fuel filter replacements, water separators to electrical fuel heater kits, we offer a wide range of products to support engines with stock horsepower to highly modified horsepower. Our FASS fuel systems not only provide additional filtration function to improve the effectiveness of your injection pump and injectors but also help prevent injector failure issues associated with Duramax diesel engines.
We pride ourselves on offering top-quality FASS products that are essential for any diesel engine enthusiast. Order your Duramax FASS fuel system today and experience the difference in your engine's performance. With fast shipping and exceptional customer service, we are dedicated to providing you with the best products to upgrade your diesel engine.
Invest in your engine's longevity and performance with our Duramax FASS fuel systems and parts. Browse our selection today and take your diesel engine to the next level!
From lift pumps to fuel filter replacements, water separators to electrical fuel heater kits, we offer a wide range of products to support engines with stock horsepower to highly modified horsepower. Our FASS fuel systems not only provide additional filtration function to improve the effectiveness of your injection pump and injectors but also help prevent injector failure issues associated with Duramax diesel engines.
We pride ourselves on offering top-quality FASS products that are essential for any diesel engine enthusiast. Order your Duramax FASS fuel system today and experience the difference in your engine's performance. With fast shipping and exceptional customer service, we are dedicated to providing you with the best products to upgrade your diesel engine.
Invest in your engine's longevity and performance with our Duramax FASS fuel systems and parts. Browse our selection today and take your diesel engine to the next level!
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FASS HB-2001 DROP-IN SERIES HEATER PROBE ADAPTER BUSHING
FASS
$15.95FASS Diesel Fuel Systems Drop-In Series Heater Probe Adapter Bushing Part No: HB-2001 This bushing allows the use of the FASS Heater Probe kit with your FASS Drop-In Series Fuel System.• -8 ORB Male to 1/4” NPT Female Adapter The FASS...$15.95 -
FASS DIFS32283R DROP-IN SERIES, ELECTRIC HEATER ELEMENT
FASS
$166.16FASS Diesel Fuel Systems Drop-In Series, Electric Heater Element (DIFS32283R) Part No.: DIFS32283R Replacement heater element for the HKDIFSHK1001 Heater Kit for the FASS Drop-In Series Systems. This FASS Electric Heater Element will work on the...$166.16 -
FASS DIFSHK1001 DROP-IN SERIES ELECTRIC HEATER PROBE KIT
FASS
$224.64FASS Diesel Fuel Systems Drop-In Series Electric Heater Probe Kit (DIFSHK1001) Part No: DIFSHK1001 Our Drop-In Series Electric Heater Probe Kits are an upgrade for FASS Systems being used in extremely cold climates. Each FASS Drop-In Series System has...$224.64 -
FASS TSC15180F140G TITANIUM SIGNATURE SERIES 140G FUEL SYSTEM FOR 20-22 GM DURAMAX 6.6L L5P
FASS
$1,117.96FASS Fuel Systems Diesel System 2020-2023 GM Duramax L5P 6.6L Titanium Signature Series (180 Free Flow) 140GPH @70-75PSI (TSC15180F140G) Part No: TSC15180F140G YMM Fitment: GMC Sierra 2500HD 2020-2023, GMC Sierra 3500HD 2020-2023, Chevrolet Silverado...$1,117.96 -
FASS TSC15250F220G TITANIUM SIGNATURE SERIES 220G FUEL SYSTEM FOR 20-22 GM DURAMAX 6.6L L5P
FASS
$1,187.92FASS Fuel Systems Diesel System 2020-2023 GM Duramax L5P 6.6L Titanium Signature Series (250 Free Flow) 220GPH @70-75PSI (TSC15250F220G) Part No: TSC15250F220G YMM Fitment: GMC Sierra 2500HD 2020-2023, GMC Sierra 3500HD 2020-2023, Chevrolet Silverado...$1,187.92 -
FASS TSC15290F240G TITANIUM SIGNATURE SERIES 240G FUEL SYSTEM FOR 20-22 GM DURAMAX 6.6L L5P
FASS
$1,257.88FASS Fuel Systems Diesel System 2020-2023 GM Duramax L5P 6.6L Titanium Signature Series (250Free Flow) 240GPH @70-75PSI (TSC15290F240G) Part No: TSC15290F240G YMM Fitment: GMC Sierra 2500HD 2020-2023, GMC Sierra 3500HD 2020-2023, Chevrolet Silverado...$1,257.88 -
FASS DIFSL5P1001 DROP-IN SERIES FUEL SYSTEM FOR 17-23 GM DURAMAX 6.6L L5P
FASS
$670.22Fits: 2017-2019 Crew Cab Short Bed L5P Duramax Fits: 2017-2024 Crew Cab Long Bed L5P Duramax Please Note: Installation of this kit on a cab and chassis may require modifications. Drop-In Fuel Systems are a plug-and-play filtration upgrade and are...$670.22 -
FASS DIFSL5P2001 DROP-IN SERIES FUEL SYSTEM FOR 20-23 GM DURAMAX 6.6L L5P
FASS
$670.22Fits: 2020-2024 Crew Cab Short Bed L5P Duramax Please Note: Installation of this kit on a cab and chassis may require modifications. Drop-In Fuel Systems are a plug-and-play filtration upgrade and are not compatible with our Fuel Sump Kit. No...$670.22 -
FASS 32283R REPLACEMENT ELEMENT FOR TITANIUM ELECTRIC HEATER
FASS
$166.16FASS Fuel Systems Diesel Electric Heater Replacement Element (32283R) A replacement element for our FASS Electric Heater (HK-1001). This item is intended for replacement parts only. This item comes with: one (1) electric heater replacement...$166.16 -
FASS CBK1001 HEAVY DUTY PICKUP FRAME CLAMP BRACKET
FASS
$99.69FASS Fuel Systems Universal Heavy Duty Pickup Frame Clamp Bracket CBK1001 Part No: CBK1001Superseded Part No: CBK-1001 If your truck is equipped with a flatbed, or utility bed, or if you have a snow plow truck that is subjected to heavy rust and...$99.69 -
FASS COMP330G COMPETITION 330G FUEL PUMP
FASS
$1,677.64FASS Fuel Systems Competition Series 330GPH (30 PSI MAX) Part No: COMP330G The Competition Series diesel fuel System was specifically designed for high-performance diesel applications that demand a large volume of fuel supply. Each Competition Series...$1,677.64 -
FASS COMP360G COMPETITION 360G FUEL PUMP
FASS
$1,789.58FASS Fuel Systems Competition Series 360GPH (100 PSI MAX) Part No: COMP360G The Competition Series diesel fuel System was specifically designed for high performance diesel applications that demand a large volume of fuel supply. Each Competition Series...$1,789.58 -
FASS COMP540G COMPETITION 540G FUEL PUMP
FASS
$1,887.52FASS Fuel Systems Competition Series 540 GPH (70 PSI MAX) Part No: COMP540G The Competition Series diesel fuel System was specifically designed for high performance diesel applications that demand a large volume of fuel supply. Each Competition Series...$1,887.52 -
FASS DFD4000 FACTORY FUEL FILTER DELETE KIT FOR 01-16 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
FASS
$109.00FASS Fuel Systems 2001-2016 Duramax Factory Fuel Filter Delete Canister (DFD4000) Part No: DFD4000 Once you’ve installed an aftermarket Fuel Filtration System such as our FASS Titanium Series, the use of the factory fuel filter is no longer...$109.00 -
FASS DMAX7001 DURAMAX FLOW ENHANCER FUEL PUMP FOR 01-10 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM
FASS
$596.83FASS Fuel Systems Dura-Max Diesel System 2001-2010 GM Duramax 6.6L (DMAX7001) Part No: DMAX7001 Duramax diesel engines do not come with a factory System, this is why Duramax owners see such great performance and economy gains after installing an...$596.83 -
FASS DMAX7002 DURAMAX FLOW ENHANCER FUEL PUMP FOR 11-16 GM DURAMAX 6.6L LML
FASS
$570.24FASS Fuel Systems Dura-Max Diesel System 2011-2016 GM Duramax 6.6L (DMAX7002) Part No: DMAX7002 Duramax diesel engines do not come with a factory System, this is why Duramax owners see such great performance and economic gains after installing an...$570.24 -
FASS FASC09100G ADJUSTABLE 100G LIFT PUMP FOR 01-16 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
FASS
$768.16FASS Fuel Systems Signature Series Adjustable Diesel Fuel System 100GPH GM Duramax 6.6L 2001-2016 (FASC09100G) Part No: FAS C09 1000G Our FASS Signature Series Adjustable Diesel Fuel Systems are designed to be the most versatile high-performance...$768.16 -
FASS FASC09165G ADJUSTABLE 165G LIFT PUMP FOR 01-16 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
FASS
$838.12FASS Fuel Systems Adjustable Diesel Fuel System 165GPH GM Duramax 6.6L 2001-2016 (FASC09165G) Part No: FASC09165G Our FASS Signature Series Adjustable Diesel Fuel Systems are designed to be the most versatile high-performance fuel System on the...$838.12 -
FASS FASC09250G ADJUSTABLE 250G LIFT PUMP FOR 01-16 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
FASS
$978.04FASS Fuel Systems Signature Series Adjustable Diesel Fuel System 250GPH GM Duramax 6.6L 2001-2016 (FASC09250G) Part No: FASC0925GSuperseded No: FAS C09 250G Our FASS Signature Series Adjustable Diesel Fuel Systems are designed to be the most...$978.04 -
FASS FASC09290G ADJUSTABLE 290G LIFT PUMP FOR 01-16 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
FASS
$1,048.00FASS Fuel Systems Adjustable Diesel Fuel System 290GPH GM Duramax 6.6L 2001-2016 (FASC09290G) Part No: FASC09290GSuperseded No: FAS C09 290G Our FASS Signature Series Adjustable Diesel Fuel Systems are designed to be the most versatile...$1,048.00 -
FASS FP3000 FLEET FILTER PACK
FASS
$138.52FASS Fuel Systems Filter Pack FP3000 Part No: FP3000Superseded Part No: FILTER PACK Perfect for the shop or keeping your garage stocked, each FASS Fuel FP3000 contains two (2) (XWS3002) Extreme Water Separators and two (2) (PF3001) Particulate Filters!...$138.52 -
FASS FP3000XL FLEET FILTER PACK XL
FASS
$78.43FASS Fuel Systems Filter Pack FP3000XL Part No: FP3000XL Perfect for the shop or keeping your garage stocked, each FASS Fuel FP3000 contains one (1) (XWS3002XL) Extreme Water Separator and one (1) (PF3001XL) Particulate Filter! Designed with...$78.43 -
FASS FPR1001 ADJUSTABLE FUEL PRESSURE REGULATOR
FASS
$198.06FASS Fuel Systems Adjustable Fuel Pressure Regulator (FPR1001) Part No: FPR1001Supersedes Part No: FPR-1001 The FASS Fuel Systems Adjustable Fuel Pressure Regulator is intended for aftermarket performance applications requiring higher fuel pressures...$198.06 -
FASS HK1001 TITANIUM SERIES OPTIONAL ELECTRIC DIESEL FUEL HEATER KIT
FASS
$224.64FASS Fuel Systems Diesel Fuel Titanium Series Electric Heater Kit (HK1001) Part No: HK1001Supersedes Part No: HK-1001 Our Titanium Series Electric Heater Kits are an upgrade for FASS Systems being used in extremely cold climates. Each FASS Titanium...$224.64 -
FASS HK1002 HIGH OUTPUT HEATER DISK
FASS
$224.64High Output Heater Disk (HK1002) Part No: HK1002Supersedes Part No: HK-1002 When the fuel temperature drops below 34° Fahrenheit, the thermostatically controlled High Output Fuel Heater Disk will automatically power on. Fuel is then heated by the...$224.64 -
FASS HKS1001 TITANIUM SIGNATURE SERIES DUAL ELECTRIC HEATER KIT SPLITTER
FASS
$51.84FASS Titanium Signature Series Dual Electric Heater Kit Splitter Part No: HKS1001Supersedes Part No: HKS-1001 This splitter allows for easy connection if you are utilizing (2) dual FASS Electric Heater Probes (HKS1001).The splitter will work for the...$51.84 -
FASS PF3001 PARTICULATE FILTER
FASS
$29.24FASS Fuel Systems PF3001 Particulate Filter (PF3001) Part No: PF3001Supersedes Part No: PF-3001 Our New Particulate Filter is rated @ 144 microns. The 144 Micron Particulate Filter on the suction side will drastically reduce cavitation, increase...$29.24 -
FASS PF3001XL EXTENDED LENGTH PARTICULATE FILTER
FASS
$33.23FASS Fuel Systems PF3001XL Particulate Filter (PF3001XL) Part No: PF3001XLSupersedes Part No: PF-3001 XL Our New Particulate Filter is rated @ 144 microns. The 144 Micron Particulate Filter on the suction side will drastically reduce cavitation,...$33.23 -
FASS TSC08100G TITANIUM SIGNATURE SERIES 100G FUEL SYSTEM 92-00 GM 6.5L DETROIT DIESEL
FASS
$978.04FASS Fuel Systems Diesel System 100GPH GM 6.5L TURBO DIESEL 1992-2000 (TSC08100G) Part No: TSC08100G Superseded Part No: TS C08 100G Fitment GM 6.5 Turbo Diesel The Titanium Signature Series diesel fuel System was engineered by FASS Diesel Fuel...$978.04 -
FASS TSC08165G TITANIUM SIGNATURE SERIES 165G FUEL SYSTEM 92-00 GM 6.5L DETROIT DIESEL
FASS
$1,048.00FASS Fuel Systems Diesel System 165GPH GM 6.5L TURBO DIESEL 1992-2000 (TSC08165G) Part No: TSC08165G Superseded Part No: TS C08 165G Fitment: GM 6.5 Turbo Diesel 1992-2000 The Titanium Signature Series diesel fuel System was engineered by FASS Diesel...$1,048.00 -
FASS TSC10100G TITANIUM SIGNATURE SERIES 100G FUEL SYSTEM FOR 01-10 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM
FASS
$964.05FASS Fuel Systems Diesel System 2001-2010 GM Duramax 6.6L Titanium Signature Series 100GPH (TSC10100G) Part No: TSC10100G Superseded Part No: TS C10 100G Fitment: GMC & Chevrolet, 2500HD & 3500HD, Duramax 2001-2010 A FASS Fuel Systems...$964.05 -
FASS TSC10165G TITANIUM SIGNATURE SERIES 165G FUEL SYSTEM FOR 01-10 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM
FASS
$1,020.02FASS Fuel Systems Diesel System 2001-2010 GM Duramax 6.6L Titanium Signature Series 165GPH (TSC10165G) Part No: TSC10165G Superseded Part No: TS C10 165G Fitment: GM & Duramax, 2500HD & 3500HD, Duramax 2001-2010 A FASS Fuel...$1,020.02 -
FASS TSC10250G TITANIUM SIGNATURE SERIES 250G FUEL SYSTEM FOR 01-16 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
FASS
$1,117.96FASS Diesel Fuel System 2001-2016 GM Duramax 6.6L Titanium Signature Series Verified 250GPH (TSC10250G) Part No: TSC10250G Superseded Part No: TS C10 250G Fitment: GMC & Chevrolet, 2500HD & 3500HD, Duramax 2001-2016 A FASS Fuel System will be...$1,117.96 -
FASS TSC10290G TITANIUM SIGNATURE SERIES 290G FUEL SYSTEM FOR 01-16 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
FASS
$1,187.92FASS Diesel Fuel System 2001-2016 GM Duramax 6.6L Titanium Signature Series 290GPH (TSC10290G) Part No: TSC10290G Superseded Part No: TS C10 290G Fitment: GMC & Chevrolet, 2500HD & 3500HD, Duramax 2001-2016 A FASS Fuel System will be...$1,187.92 -
FASS TSC11100G TITANIUM SIGNATURE SERIES 100G FUEL SYSTEM FOR 11-14 DURAMAX 6.6L LML
FASS
$964.05FASS Fuel Systems Diesel System 2011-2014 GM Duramax LML 6.6L Titanium Signature Series 100GPH (TSC11100G) Part No: TSC11100GSuperseded No: TS C11 100G A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax LML diesel engine, this is...$964.05 -
FASS TSC11165G TITANIUM SIGNATURE SERIES 165G FUEL SYSTEM FOR 11-14 DURAMAX 6.6L LML
FASS
$1,020.02FASS Fuel Systems Diesel System 2011-2014 GM Duramax LML 6.6L Titanium Signature Series 165GPH (TSC11165G) Part No: TSC11165G Superseded Part No: TS C11 165G Fitment: GM 2500/3500 Duramax 2011-2014 A FASS Fuel Systems can be a beneficial...$1,020.02 -
FASS TSC12100G TITANIUM SIGNATURE SERIES 100G FUEL SYSTEM FOR 15-16 DURAMAX 6.6L LML
FASS
$978.04FASS Fuel Systems Diesel System 2015-2016 GM Duramax LML 6.6L Titanium Signature Series 100GPH (TSC12100G) Part No: TSC12100G Superseded Part No: TS C12 100G Fitment: GM 2500-3500 Duramax A FASS Fuel Systems can be a beneficial upgrade for your...$978.04 -
FASS TSC12165G TITANIUM SIGNATURE SERIES 165G FUEL SYSTEM FOR 15-16 DURAMAX 6.6L LML
FASS
$1,020.02FASS Fuel Systems Diesel System 2015-2016 GM Duramax LML 6.6L Titanium Signature Series 165GPH (TSC12165G) Part No: TSC12165G Superseded Part No: TS C12 165G Fitment: GM 2500-3500 Duramax A FASS Fuel Systems can be a beneficial upgrade for your...$1,020.02 -
FASS TSC13180F140G TITANIUM SIGNATURE SERIES 140G FUEL SYSTEM FOR 17-19 DURAMAX 6.6L L5P
FASS
$1,117.96FASS Titanium Signature Series Diesel Fuel System, 180F, 140GPH 2017-2019 Duramax L5P (TSC13180F140G) WARNING! This System is designed for the 2017-2019 L5P Duramax WITH AFTERMARKET TUNING! If the truck is not equipped with an aftermarket tune and the...$1,117.96 -
FASS TSC13250F220G TITANIUM SIGNATURE SERIES 220G FUEL SYSTEM FOR 17-19 DURAMAX 6.6L L5P
FASS
$1,187.92FASS Titanium Signature Series Diesel Fuel System 250F 220GPH 2017-2019 Duramax L5P (TSC13250F220G) WARNING! This System is designed for the 2017-2019 L5P Duramax WITH AFTERMARKET TUNING!! If the truck is not equipped with an aftermarket tune and the...$1,187.92 -
FASS TSC13290F240G TITANIUM SIGNATURE SERIES 240G FUEL SYSTEM FOR 17-19 DURAMAX 6.6L L5P
FASS
$1,257.88FASS Titanium Signature Series Diesel Fuel System 240GPH 2017-2019 Duramax L5P WARNING! This System is designed for the 2017-2019 L5P Duramax WITH AFTERMARKET TUNING!! If the truck is not equipped with an aftermarket tune and the ability to delete...$1,257.88 -
FASS TSC14140F110G TITANIUM SIGNATURE SERIES 110G FUEL SYSTEM FOR 16-20 GM COLORADO/CANYON 2.8L DURAMAX
FASS
$1,187.92FASS Fuel Systems Diesel System 2016-2020 Chevy Colorado/GMC Canyon Duramax 2.8L Titanium Signature Series 110GPH (TSC14140F110G) Part No: TSC14140F110GSuperseded Part Number: TSC14110GPreviously Superseded Part Number: TS C14 110G Fitment: GM Canyon,...$1,187.92 -
FASS XWS1002 EXTREME WATER SEPARATOR
FASS
$53.17The FASS Fuel Systems XWS1002 Extreme Water Separator is the ultimate solution for efficiently filtering water from your system. Boasting a 2-micron absolute rating, this high-performance water separator is designed to ensure only the cleanest fuel flows...$53.17 -
FASS XWS3002 EXTREME WATER SEPARATOR
FASS
$41.21FASS Fuel Systems Extreme Water Separator Filter (XWS3002) Part No: XWS3002Supersedes Part No: XWS-3002 Our New more efficient Extreme Water Separator is rated @ 2 microns absolute. Our water separator no longer has a drain because the filter element...$41.21 -
FASS XWS3002XL EXTENDED LENGTH EXTREME WATER SEPARATOR
FASS
$45.19The FASS Fuel Systems XWS3002XL Extreme Water Separator is a state-of-the-art solution designed to efficiently eliminate water particles from your fuel system. With its extended length and superior filtration capabilities, the XWS3002XL is engineered to...$45.19 -
FASS XWS5000 1-12 INCH TRANSFER TANK FILTER
FASS
$42.54FASS FUEL SYSTEMS XWS5000 1-12″ TRANSFER TANK FUEL FILTER (XWS5000) Part No: XWS5000Supersedes part no: XWS-5000 The FASS XWS5000 Extreme Water Separator Transfer Tank Fuel Filter was designed to remove water, dirt particulates, and rust from...$42.54 -
WEHRLI WCF100276 17-21 CHEVROLET L5P DURAMAX RELOCATION MOUNT FASS LIFT PUMP
WEHRLI CUSTOM FABRICATION
$80.08The WEHRLI WCF100276 17-21 Chevrolet L5P Duramax Relocation Mount FASS Lift Pump Bracket offers an innovative solution to enhance the performance and efficiency of your 2017-2023 L5P Duramax vehicle. With this smartly designed mounting bracket, you can...$80.08 -
WEHRLI WCF100269 11-16 CHEVROLET 6.6L DURAMAX FASS FUEL SYSTEM RELOCATION BRACKET (CREW CAB ONLY)
WEHRLI CUSTOM FABRICATION
$142.51The WEHRLI WCF100269 11-16 CHEVROLET 6.6L DURAMAX FASS FUEL SYSTEM RELOCATION BRACKET is the perfect solution for relocating your FASS fuel system in your 2011-2016 LML Crew Cab Duramax. Designed to move the FASS fuel system underneath the truck, just...$142.51 -
WEHRLI WCF100265 01-10 CHEVROLET 6.6L DURAMAX FASS FUEL SYSTEM RELOCATION BRACKET (CREW CAB ONLY)
WEHRLI CUSTOM FABRICATION
$128.94The WEHRLI WCF100265 01-10 Chevrolet 6.6L Duramax Fass Fuel System Relocation Bracket is a reliable and durable mounting solution for LB7, LLY, LBZ, and LMM Crew Cab Duramax models from 2001 to 2010. This innovative bracket is designed to relocate the...$128.94 -
BD DIESEL 1050348 FLOW-MAX FUEL HEATER KIT FOR FASS FUEL SYSTEMS
BD DIESEL
$304.96Keep your fuel system running smoothly even in the coldest of weather with the BD Diesel 1050348 Flow-Max Fuel Heater Kit. Designed with BD's PTC heating element, this 12V 320W heater is a must-have for cold climate conditions. By being positioned...$304.96