DIFFERENTIAL / DRIVETRAIN
Your axle's differential is an important part of your diesel truck, and it pays to install a quality aftermarket differential cover to help protect the differential and provide a performance boost. Our Duramax differential covers do this by providing optimal lubrication for the gears, and by transferring heat from the oil to the outside air. Our differential covers also make it easy to service with fluids. We carry only the highest quality products for our customers.
Premium Parts, Fast Service
We carry premium quality differential covers made by trusted brands like ATS and aFe. These covers are constructed out of durable materials and designed for delivering top performance. We understand you are eager to get your parts and start installing them on your diesel, and we strive to deliver the best customer service on the web, in which we ship out our orders as quickly as possible. If you order before 2 PM EST, chances are your parts will ship out same day. Now that is quality service!
Order Yours Now
Browse our selection of Duramax differential covers. We're sure you'll find the right part for your make. If you aren't finding the product you are looking for, or you have any questions about our covers and whether they'll fit your vehicle, give us a call at 724-785-4022 or drop us a message and we'll get back to you as soon as possible. Order your differential cover today.
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PPE 138041000 FRONT DIFFERENTIAL COVER-RAW 2011-2019 GM 2500HD/3500HD 6.6L DURAMAX LML/L5P
PACIFIC PERFORMANCE ENGINEERING
$215.99Help keep your 2011-Present GMs front differential running cool and clean with an upgraded differential cover from PPE. With the largest set of cast cooling fins in the industry, found both inside as well as outside the pan, >PPEs differential covers...$215.99 -
PPE 138041010 FRONT DIFFERENTIAL COVER-BRUSH 2011-2019 GM 2500HD/3500HD 6.6L DURAMAX LML/L5P
PACIFIC PERFORMANCE ENGINEERING
$233.99Help keep your 2011-Present GMs front differential running cool and clean with an upgraded differential cover from PPE. With the largest set of cast cooling fins in the industry, found both inside as well as outside the pan, >PPEs differential covers...$233.99 -
PPE 138041020 FRONT DIFFERENTIAL COVER-BLACK 2011-2019 GM 2500HD/3500HD 6.6L DURAMAX LML/L5P
PACIFIC PERFORMANCE ENGINEERING
$233.99Help keep your 2011-Present GMs front differential running cool and clean with an upgraded differential cover from PPE. With the largest set of cast cooling fins in the industry, found both inside as well as outside the pan, >PPEs differential covers...$233.99 -
PPE 238051010 HEAVY DUTY CAST ALUMINUM REAR DIFFERENTIAL COVER-BRUSHED 2001-2019 GM 2500HD/3500HD & 2003-2018 DODGE RAM 2500/3500
PACIFIC PERFORMANCE ENGINEERING
$305.99Made in the USA from high-quality cast aluminum for strength and optimum heat dissipation. PPEs differential covers offer industry-leading fluid cooling. Equipped with internal heat sinks and external cooling fins, increasing the pans surface area...$305.99 -
PPE 238051020 HEAVY DUTY CAST ALUMINUM REAR DIFFERENTIAL COVER-BLACK 2001-2019 GM 2500HD/3500HD & 2003-2018 DODGE RAM 2500/3500
PACIFIC PERFORMANCE ENGINEERING
$305.99Made in the USA from high-quality cast aluminum for strength and optimum heat dissipation. PPEs differential covers offer industry-leading fluid cooling. Equipped with internal heat sinks and external cooling fins, increasing the pans surface area...$305.99 -
PPE 138053000 HEAVY-DUTY CAST ALUMINUM REAR DIFFERENTIAL COVER RAW (11.5 INCH /12 INCH -14) 2020-2022 GM 6.6L DURAMAX L5P
PACIFIC PERFORMANCE ENGINEERING
$296.99Specially engineered to minimize friction and maximize lubrication. Keep your GM rear differential running cool and clean with an upgraded cover from PPE. Made from high-quality cast A356.0-T6 aluminum for strength and optimum heat dissipation. Increased...$296.99 -
PPE 138053010 HEAVY-DUTY CAST ALUMINUM REAR DIFFERENTIAL COVER BRUSHED (11.5 INCH /12 INCH -14) 2020-2022 GM 6.6L DURAMAX L5P
PACIFIC PERFORMANCE ENGINEERING
$314.99Specially engineered to minimize friction and maximize lubrication. Keep your GM rear differential running cool and clean with an upgraded cover from PPE. Made from high-quality cast A356.0-T6 aluminum for strength and optimum heat dissipation. Increased...$314.99 -
PPE 138053020 HEAVY-DUTY CAST ALUMINUM REAR DIFFERENTIAL COVER BLACK (11.5 INCH /12 INCH -14) 2020-2022 GM 6.6L DURAMAX L5P
PACIFIC PERFORMANCE ENGINEERING
$314.99Specially engineered to minimize friction and maximize lubrication. Keep your GM rear differential running cool and clean with an upgraded cover from PPE. Made from high-quality cast A356.0-T6 aluminum for strength and optimum heat dissipation. Increased...$314.99 -
PERFORMANCE ACCESSORIES PASP0300 | SPRING PERCHES 3 INCH PAIR STEEL
PERFORMANCE ACCESSORIES
$44.12Performance Accessories spring perches are weld-on for leaf spring axle assemblies. Sold in pairs. Spring perches are welded to the axle tube for custom leaf spring mounting. Made from high quality domestic steel, our spring perches come in 1.75 Inch, 2...$44.12 -
AFE 46-71260A Street Series Rear Differential Cover Raw w/ Machined Fins GM Trucks 20-21 V8-6.6L (AAM 11.5/12.0-14)
AFE POWER
$289.00Increased Oil Capacity:This cover has an increased oil capacity over stock for better performance over a longer duration. Built-in Internal/External Fins:Built-in internal and external fins transfer heat from the oil to the outside air for maximum...$289.00 -
ATS 402-915-6248 11.5 INCH 14-BOLT DIFFERENTIAL COVER 2001-2019 GM SILVERADO/SIERRA 2500HD/3500HD
ATS DIESEL
$280.68ATS Protector Rear Differential Cover for AAM 14-Bolt 11.5 Inch. Cast aluminum construction with a black powdercoat finish. Kit.Details: ATS Protector Differential Cover - AAM 14-Bolt 11.5-inch Rear 2.5 quart fluid capacity over stock Optimal gear...$280.68 -
AFE 46-71050A Street Series Front Differential Cover Raw w/Machined Fins GM 2500/3500 11-20 V8-6.0L/6.6L (AAM 9.25)
AFE POWER
$289.00aFe POWER's AAM 9.25 front differential cover brings performance engineering to the protection of your axle's differential. This differential cover is constructed out of durable cast aluminum with reinforcing ribs for maximum strength and comes with all...$289.00 -
AFE 46-71060A Street Series Rear Differential Cover Raw w/ Machined Fins GM Diesel Trucks 01-19 V8-6.6L (td) / GM Gas Trucks 01-19 V8-8.1L/6.0L
AFE POWER
$289.00aFe POWER's new rear differential cover brings performance engineering to the protection of your axle's differential. This differential cover is constructed out of durable cast aluminum with reinforced ribs for maximum strength. This cover comes with all...$289.00 -
AFE 46-71050B Pro Series Front Differential Cover Black w/Machined Fins GM 2500/3500 11-20 V8-6.0L/6.6L (AAM 9.25)
AFE POWER
$353.43aFe POWER's AAM 9.25 front differential cover brings performance engineering to the protection of your axle's differential. This differential cover is constructed out of durable cast aluminum with reinforcing ribs for maximum strength and comes with all...$353.43 -
AFE 46-71060B Pro Series Rear Differential Cover Black w/ Machined Fins GM Diesel Trucks 01-19 V8-6.6L (td) / GM Gas Trucks 01-19 V8-8.1L/6.0L
AFE POWER
$353.43aFe POWER's new rear differential cover brings performance engineering to the protection of your axle's differential. This differential cover is constructed out of durable cast aluminum with reinforced ribs for maximum strength. This cover comes with all...$353.43 -
WEHRLI WCF100114 2020-2024 GM 2500/3500HD & 2019-2023 RAM 2500/3500 REAR DIFFERENTIAL COVER
WEHRLI CUSTOM FABRICATION
$343.38Fabricated Aluminum Differential Cover for Rear Axle on 2020-2024 GM Duramax HD Trucks and 2019-2023 Dodge Ram 2500/3500. Comes finished in your choice of WCFab's signature custom powder coat colors for a look as unique as your truck. Replaces the...$343.38 -
WEHRLI WCF100113 01-19 CHEVROLET DURAMAX/03-19 DODGE CUMMINS 11.5IN AAM REAR DIFF. COVER
WEHRLI CUSTOM FABRICATION
$343.38These Fabricated Aluminum Differential Covers for AAM 11.50 Rear Axle on Dodge / RAM and GM HD Trucks from WCFab are precision laser cut, CNC Bent, and fully TIG welded aluminum assemblies designed to replace the OEM cover. Includes a 1" Fill Port (with...$343.38 -
WEHRLI WCF100831 2020+ CHEVROLET DURAMAX TRACTION BAR INSTALL KIT
WEHRLI CUSTOM FABRICATION
$252.20Built in house at WCFab our traction bar brackets bolt on to the bottom of the axle tube via the axle u-bolts and weld to the frame on the front end. Grade 8 hardware connects the bars to the mounts on the frame and axle. ***THIS IS A REPLACEMENT...$252.20 -
WEHRLI WCF100841 11-19 CHEVROLET 6.6L DURAMAX TRACTION BAR INSTALL KIT
WEHRLI CUSTOM FABRICATION
$252.20Built in house at WCFab our traction bar brackets bolt on to the bottom of the axle tube via the axle u-bolts and weld to the frame on the front end. Grade 8 hardware connects the bars to the mounts on the frame and axle. ***THIS IS A REPLACEMENT...$252.20 -
WEHRLI WCF100840 01-10 CHEVROLET 6.6L DURAMAX TRACTION BAR INSTALL KIT
WEHRLI CUSTOM FABRICATION
$252.20Built in house at WCFab our traction bar brackets bolt on to the bottom of the axle tube via the axle u-bolts and weld to the frame on the front end. Grade 8 hardware connects the bars to the mounts on the frame and axle. ***THIS IS A REPLACEMENT...$252.20 -
FLEECE FPE-TUFSHAFTS TUFSHAFTS AXLE UPGRADE-FRONT 2001-2010 GM 2500HD/3500HD 4WD
FLEECE PERFORMANCE
$945.00TufShafts are a direct replacement upgrade shafts for any 2001-2010 GM 2500-3500 with a 9.25” AAM front axle. They are designed to eliminate the stock passenger side split axle shaft that is prone to breaking under high torque situations, as well...$945.00 -
AFE POWER 46-71260B PRO SERIES REAR DIFFERENTIAL COVER BLACK W/ MACHINED FINS GM DIESEL TRUCKS 2020 V8-6.6L (TD) L5P
AFE POWER
$353.43Increased Oil Capacity:This cover has an increased oil capacity over stock for better performance over a longer duration. Built-in Internal/External Fins:Built-in internal and external fins transfer heat from the oil to the outside air for maximum...$353.43 -
BANKS 19259 DIFFERENTIAL COVER KIT (NATURAL) 11.5/11.8-14 BOLT 2001-2019 GM 2500HD/3500HD 2003-2018 DODGE RAM 2500/3500
BANKS
$385.00Differential Cover Kit Natural 11.5/11.8-14 Bolt GM and Ram from 2001-2018 Banks Ram-Air® differential cover extends lubrication life and retains fuel economy. Thanks to its superior fluid and aerodynamics, the Ram-Air® Cover...$385.00 -
BANKS 19269 RAM-AIR DIFFERENTIAL COVER KIT-AA14 (11.5 IN) 2001-2019 GM 2500HD/3500HD 2003-2018 DODGE RAM 2500/3500
BANKS
$395.00The All-New Patented Banks Ram-Air Differential Cover Wipes out the competition! When it comes to product development, we only make products that increase performance and beat the competition. So when we tested the popular Diff Covers on the market, we...$395.00 -
BANKS 19249 RAM-AIR DIFFERENTIAL COVER KIT-REAR 2001-2019 GM 2500HD/3500HD 2003-2018 DODGE RAM 2500/3500
BANKS
$395.00The All-New Patented Banks Ram-Air Differential Cover Wipes out the competition! When it comes to product development, we only make products that increase performance and beat the competition. So, when we tested the popular Diff Covers on the...$395.00 -
YUKON GEAR AND AXLE YK GM11.5-B MASTER OVERHAUL KIT (CHEVY/DODGE/GMC TRUCKS)
YUKON GEAR AND AXLE
$750.14Yukon Master Overhaul kits give you all the high quality parts you need to start & finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses...$750.14 -
YUKON GEAR AND AXLE YZLCOMPRESSOR-01 ZIP LOCKER COMPACT AIR COMPRESSOR (99-15 CHEVROLET SILVERADO 2500)
YUKON GEAR AND AXLE
$242.89The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver selectability. For Yukon Zip Locker or air actuated...$242.89 -
BD DIESEL 1030710 2LOW UNLOC 2001-2014 GM SILVERADO / SIERRA 2500HD / 3500HD 4WD
BD DIESEL
$178.95Vehicle maneuverability is reduced while in 4WD. When the 2Low Unloc is turned on, you disable the front wheel drive mechanism allowing for full torque to be available to the rear wheels only. The front wheels will NOT be driven, delivering normal 2WD...$178.95 -
PPE 238051000 HEAVY-DUTY CAST ALUMINUM REAR DIFFERENTIAL COVER RAW 2001-2019 GM SILVERADO/SIERRA 3500HD/3500HD 2003-2018 DODGE RAM 2500/3500
PACIFIC PERFORMANCE ENGINEERING
$287.99Made in the USA from high-quality cast aluminum for strength and optimum heat dissipation. PPE’s differential covers offer industry-leading fluid cooling. Equipped with internal heat sinks and external cooling fins, increasing the pan’s...$287.99 -
PPE 138051000 HEAVY DUTY DIFFERENTIAL COVER - RAW (WITH AA14-11.5 AXLES) 2001-2019 GM DURAMAX & 2003-2018 DODGE CUMMINS
PACIFIC PERFORMANCE ENGINEERING
$287.99Help keep your 2011-Present GMs front differential running cool and clean with an upgraded differential cover from PPE. With the largest set of cast cooling fins in the industry, found both inside as well as outside the pan, >PPEs differential covers...$287.99 -
PPE 138051010 HEAVY DUTY DIFFERENTIAL COVER - BRUSHED 2001-2019 GM DURAMAX & 2003-2018 DODGE CUMMINS
PACIFIC PERFORMANCE ENGINEERING
$305.99Help keep your 2011-Present GMs front differential running cool and clean with an upgraded differential cover from PPE. With the largest set of cast cooling fins in the industry, found both inside as well as outside the pan, PPEs differential covers...$305.99 -
PPE 138051020 HEAVY DUTY DIFFERENTIAL COVER - BLACK (WITH AA14-11.5 AXLES) 2001-2019 GM DURAMAX & 2003-2018 DODGE CUMMINS
PACIFIC PERFORMANCE ENGINEERING
$305.99Help keep your 2011-Present GMs front differential running cool and clean with an upgraded differential cover from PPE. With the largest set of cast cooling fins in the industry, found both inside as well as outside the pan, >PPEs differential covers...$305.99 -
MOOG 515146 WHEEL BEARING & HUB ASSEMBLY 2011-2019 GM 2500HD RWD | 2011-2019 GM 3500HD RWD (SINGLE REAR WHEEL)
MOOG
$349.95Moog wheel bearing and hub assemblies feature problem-solving innovations and include application-specific design enhancements. They are engineered to overcome problems and deliver smooth, reliable performance.Features and benefits of Moog wheel bearing...$349.95 -
MOOG 515145 WHEEL BEARING & HUB ASSEMBLY 2011-2016 GM 2500HD/3500HD 4WD (SINGLE REAR WHEEL)
MOOG
$269.95Moog wheel bearing and hub assemblies feature problem-solving innovations and include application-specific design enhancements. They are engineered to overcome problems and deliver smooth, reliable performance.Features and benefits of Moog wheel bearing...$269.95 -
MOOG 515144 WHEEL BEARING & HUB ASSEMBLY 2011-2019 GM 3500HD 4WD (DUAL REAR WHEEL)
MOOG
$329.99Moog wheel bearing and hub assemblies feature problem-solving innovations and include application-specific design enhancements. They are engineered to overcome problems and deliver smooth, reliable performance.Features and benefits of Moog wheel bearing...$329.99 -
BD DIESEL 1061825 DIFFERENTIAL COVER-REAR (AA 14-11.5) 2003-2018 DODGE RAM 2500 / 3500 & 2001-2018 GM 2500 / 3500
BD DIESEL
$308.95BD's design deflects the oil back onto the ring gear and into the pinion gear for cooler longer life. Other differential covers are large and bulky resulting in lubricating oil being flung off the ring gear causing addition heat and/or wear. FEATURES ...$308.95 -
DANA SPICER 5-3206X AAM-1485 SERIES UNIVERSAL JOINT/ U-JOINT
$70.99Greasable Automotive Universal Joints from Spicer® Our standard of performance, these light duty OEM quality universal joints feature journal crosses that are manufactured from high-quality alloy forgings and heat treated for maximum life. The...$70.99 -
DANA SPICER 5-793X 1330/S44 SERIES 2001 DURAMAX 1500 U-JOINT
$24.992001 1500 DURAMAX Greasable Automotive Universal Joints from Spicer® Our standard of performance, these light duty OEM quality universal joints feature journal crosses that are manufactured from high-quality alloy forgings and heat treated for...$24.99 -
DANA SPICER 5-188X 1480 SERIES UNIVERSAL JOINT/ U-JOINT
$32.97Greasable Automotive Universal Joints from Spicer® Our standard of performance, these light duty OEM quality universal joints feature journal crosses that are manufactured from high-quality alloy forgings and heat treated for maximum life. The...$32.97 -
DANA SPICER 5-160X 1410 SERIES UNIVERSAL JOINT/ U-JOINT (5-160X)
$26.99The Dana Spicer universal joint, particularly the 5-160X U-joint, is a heavy-duty part designed for trucks that require reliable drivetrain components. Known for delivering dependable performance, the Spicer 1410 series U-joint exemplifies durability and...$26.99 -
DANA SPICER 5-1310X 1310 SERIES UNIVERSAL JOINT/ U-JOINT (5-1310X)
$25.99Greasable Automotive Universal Joints from Spicer® Our standard of performance, these light duty OEM quality universal joints feature journal crosses that are manufactured from high-quality alloy forgings and heat treated for maximum life. The...$25.99 -
DANA SPICER 5-1410X 1410 SERIES UNIVERSAL JOINT/ U-JOINT
$31.99Greasable Automotive Universal Joints from Spicer® Our standard of performance, these light duty OEM quality universal joints feature journal crosses that are manufactured from high-quality alloy forgings and heat treated for maximum life. The...$31.99 -
MAG-HYTEC AA 14-11.5 DIFFERENTIAL COVER 2003-2013 DODGE RAM 2500* | 2003-2018 DODGE RAM 3500* | 2001-2019 GM 2500HD/3500HD
MAG HYTEC
$334.4003-10 Dodge and GM 5.9 and 6.7L Full Floating Axle Gm Hd 2500 & 3500 2001 & Up, Duramax & 8.1 Liter Gas/Dodge Rear 2003 & Up 2500-Automatic Standard Diesel$334.40 -
MAG-HYTEC DANA 70 DIFFERENTIAL COVER MANY APPLICATIONS DODGE, FORD, GM
MAG HYTEC
$298.30Mag Hytec Dodge Dana 70 Differential Cover Dodge 1994 to 2002: 2500 Automatic Diesel Trucks Applications: Dodge Pre 94-all 2500 & 3500 trucks Dodge 94 and up-2500/automatic trucks Some Older GM's Ford 85 and older - F250 and F350 Trucks...$298.30