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Wehrli

Built for your performance needs, the Wehrli collection at FastHemis offers a range of aftermarket parts designed to improve power, response, and durability. Whether you’re upgrading your engine internals, drivetrain, or suspension, these components are engineered to support higher performance levels and reliable operation under demanding conditions.

In this category, you’ll find everything from reinforced engine components to precision drivetrain upgrades that help optimize power delivery and handling. Each product is selected to complement your build goals, whether you’re focused on strength, sound, or overall driving dynamics.

  • Engine internals built for boost and reliability
  • Drivetrain parts for improved power transfer
  • Suspension components for better handling and stance
  • Performance-enhancing upgrades tailored to your setup

Shop Wehrli parts and upgrades for your performance build at FastHemis.

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38 Results

Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) w/ Bengal Blue
Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) w/ Bengal Blue
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Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) w/ Bengal Blue

Wehrli

Regular price $389.00 $377.33 3% off

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Wehrli Grey Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18)
Wehrli Grey Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18)
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Wehrli Grey Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18)

Wehrli

Regular price $414.00 $401.58 3% off

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Wehrli Gloss Black Rear Diff Cover: Dodge Ram 2500 (2003-2018) / Ram 3500 (2003-2018)
Wehrli Gloss Black Rear Diff Cover: Dodge Ram 2500 (2003-2018) / Ram 3500 (2003-2018)
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Wehrli Gloss Black Rear Diff Cover: Dodge Ram 2500 (2003-2018) / Ram 3500 (2003-2018)

Wehrli

Regular price $389.00 $377.33 3% off

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Wehrli Gloss White Rear Diff Cover: Dodge Ram 2500 (2003-2018) / Ram 3500 (2003-2018)
Wehrli Gloss White Rear Diff Cover: Dodge Ram 2500 (2003-2018) / Ram 3500 (2003-2018)
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Wehrli Gloss White Rear Diff Cover: Dodge Ram 2500 (2003-2018) / Ram 3500 (2003-2018)

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) w/ Red
Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) w/ Red
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Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) w/ Red

Wehrli

Regular price $414.00 $401.58 3% off

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per 

Wehrli Purple Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18)
Wehrli Purple Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18)
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Wehrli Purple Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18)

Wehrli

Regular price $414.00 $401.58 3% off

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per 

Wehrli Candy Red Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18)
Wehrli Candy Red Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18)
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Wehrli Candy Red Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18)

Wehrli

Regular price $414.00 $401.58 3% off

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per 

Wehrli Intercooler Pipes Kit: Ram 2500 / Ram 3500 2013-2018 w/ Illusion Blueberry
Wehrli Intercooler Pipes Kit: Ram 2500 / Ram 3500 2013-2018 w/ Illusion Blueberry
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Wehrli Intercooler Pipes Kit: Ram 2500 / Ram 3500 2013-2018 w/ Illusion Blueberry

Wehrli

Regular price $619.00 $600.43 3% off

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Wehrli Intercooler Pipes Kit: Ram 2500 / 3500 2013-2018 w/ Grey
Wehrli Intercooler Pipes Kit: Ram 2500 / 3500 2013-2018 w/ Grey
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Wehrli Intercooler Pipes Kit: Ram 2500 / 3500 2013-2018 w/ Grey

Wehrli

Regular price $619.00 $600.43 3% off

Unit price
per 

Wehrli Gloss Black Intercooler Pipes Kit: Ram 2500 / Ram 3500 2013-2018
Wehrli Gloss Black Intercooler Pipes Kit: Ram 2500 / Ram 3500 2013-2018
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Wehrli Gloss Black Intercooler Pipes Kit: Ram 2500 / Ram 3500 2013-2018

Wehrli

Regular price $569.00 $551.93 3% off

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per 

Wehrli Intercooler Pipes Kit: Ram 2500 / Ram 3500 2013-2018 w/ Bengal Blue
Wehrli Intercooler Pipes Kit: Ram 2500 / Ram 3500 2013-2018 w/ Bengal Blue
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Wehrli Intercooler Pipes Kit: Ram 2500 / Ram 3500 2013-2018 w/ Bengal Blue

Wehrli

Regular price $569.00 $551.93 3% off

Unit price
per 

Wehrli Gloss White Intercooler Pipes Kit: Ram 2500 / 3500 2013-2018
Wehrli Gloss White Intercooler Pipes Kit: Ram 2500 / 3500 2013-2018
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Wehrli Gloss White Intercooler Pipes Kit: Ram 2500 / 3500 2013-2018

Wehrli

Regular price $569.00 $551.93 3% off

Unit price
per 

Wehrli 3.5in Intercooler Pipes Kit: Ram 2500 / Ram 3500 2013-2018 w/ WCFab Red
Wehrli 3.5in Intercooler Pipes Kit: Ram 2500 / Ram 3500 2013-2018 w/ WCFab Red
usa

Wehrli 3.5in Intercooler Pipes Kit: Ram 2500 / Ram 3500 2013-2018 w/ WCFab Red

Wehrli

Regular price $619.00 $600.43 3% off

Unit price
per 

Wehrli Candy Teal Rear Diff Cover (REAR): Dodge Ram 2500 / Ram 3500 (03-18)
Wehrli Candy Teal Rear Diff Cover (REAR): Dodge Ram 2500 / Ram 3500 (03-18)
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Wehrli Candy Teal Rear Diff Cover (REAR): Dodge Ram 2500 / Ram 3500 (03-18)

Wehrli

Regular price $414.00 $401.58 3% off

Unit price
per 

Wehrli Fine Texture Black Rear Diff Cover (REAR): Dodge Ram 2500 / Ram 3500 (03-18)
Wehrli Fine Texture Black Rear Diff Cover (REAR): Dodge Ram 2500 / Ram 3500 (03-18)
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Wehrli Fine Texture Black Rear Diff Cover (REAR): Dodge Ram 2500 / Ram 3500 (03-18)

Wehrli

Regular price $389.00 $377.33 3% off

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per 

Wehrli Gloss Black Rear Differential Cover: Ram 2500 / Ram 3500 (19-24)
Wehrli Gloss Black Rear Differential Cover: Ram 2500 / Ram 3500 (19-24)
usa

Wehrli Gloss Black Rear Differential Cover: Ram 2500 / Ram 3500 (19-24)

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Rear Differential Cover (REAR): Ram 2500 / 3500 2019-2024 w/ Grey
Wehrli Rear Differential Cover (REAR): Ram 2500 / 3500 2019-2024 w/ Grey
usa

Wehrli Rear Differential Cover (REAR): Ram 2500 / 3500 2019-2024 w/ Grey

Wehrli

Regular price $414.00 $401.58 3% off

Unit price
per 

Wehrli Gloss White Rear Differential Cover: Ram 2500 / Ram 3500 2019-2024
Wehrli Gloss White Rear Differential Cover: Ram 2500 / Ram 3500 2019-2024
usa

Wehrli Gloss White Rear Differential Cover: Ram 2500 / Ram 3500 2019-2024

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Red Rear Differential Cover: Ram 2500 / 3500 (19-24)
Wehrli Red Rear Differential Cover: Ram 2500 / 3500 (19-24)
usa

Wehrli Red Rear Differential Cover: Ram 2500 / 3500 (19-24)

Wehrli

Regular price $414.00 $401.58 3% off

Unit price
per 

Wehrli Rear Differential Cover: Ram 2500 / 3500 2019-2024 w/ Bengal Blue
Wehrli Rear Differential Cover: Ram 2500 / 3500 2019-2024 w/ Bengal Blue
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usa

Wehrli Rear Differential Cover: Ram 2500 / 3500 2019-2024 w/ Bengal Blue

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Candy Teal Rear Differential Cover: Ram 2500 / Ram 3500 19-24
Wehrli Candy Teal Rear Differential Cover: Ram 2500 / Ram 3500 19-24
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usa

Wehrli Candy Teal Rear Differential Cover: Ram 2500 / Ram 3500 19-24

Wehrli

Regular price $414.00 $401.58 3% off

Unit price
per 

Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / Ram 3500 (03-18) w/ Bengal Grey
Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / Ram 3500 (03-18) w/ Bengal Grey
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usa

Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / Ram 3500 (03-18) w/ Bengal Grey

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) - Bengal Red
Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) - Bengal Red
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usa

Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) - Bengal Red

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Rear Differential Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18) w/ CAT Yellow
Wehrli Rear Differential Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18) w/ CAT Yellow
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Wehrli Powder Coated Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) w/ Chevy Orange
Wehrli Powder Coated Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) w/ Chevy Orange
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Wehrli Powder Coated Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) w/ Chevy Orange

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) w/ Bengal Silver
Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) w/ Bengal Silver
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usa

Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) w/ Bengal Silver

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Gun Metal Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / 3500 (11-18)
Wehrli Gun Metal Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / 3500 (11-18)
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Wehrli Gun Metal Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / 3500 (11-18)

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) - Kiwi Green
Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) - Kiwi Green
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Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) - Kiwi Green

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) - Brizzle Blue
Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) - Brizzle Blue
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Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18) - Brizzle Blue

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Semi-Gloss Black Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18)
Wehrli Semi-Gloss Black Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18)
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Wehrli Semi-Gloss Black Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18)

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Flat Black Rear Differential Cover: Dodge Ram 2500 (03-10) / Ram 3500 (03-18)
Wehrli Flat Black Rear Differential Cover: Dodge Ram 2500 (03-10) / Ram 3500 (03-18)
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Wehrli Flat Black Rear Differential Cover: Dodge Ram 2500 (03-10) / Ram 3500 (03-18)

Wehrli

Regular price $389.00 $377.33 3% off

Unit price
per 

Wehrli Bronze Chrome Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18)
Wehrli Bronze Chrome Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18)
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Wehrli Bronze Chrome Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18)

Wehrli

Regular price $414.00 $401.58 3% off

Unit price
per 

Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18)
Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18)
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usa

Wehrli Rear Diff Cover (REAR): Dodge Ram 2500 / 3500 (03-18)

Wehrli

Regular price $414.00 $401.58 3% off

Unit price
per 

Wehrli Illusion Blueberry Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18)
Wehrli Illusion Blueberry Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18)
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Wehrli Illusion Blueberry Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18)

Wehrli

Regular price $414.00 $401.58 3% off

Unit price
per 

Wehrli Rear Diff Cover SparkleBomberOrange: Fits Dodge Ram / Ram 2500 / 3500 (03-18)
Wehrli Rear Diff Cover SparkleBomberOrange: Fits Dodge Ram / Ram 2500 / 3500 (03-18)
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Wehrli Rear Diff Cover SparkleBomberOrange: Fits Dodge Ram / Ram 2500 / 3500 (03-18)

Wehrli

Regular price $414.00 $401.58 3% off

Unit price
per 

Wehrli Sparkle Copper Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18)
Wehrli Sparkle Copper Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18)
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Wehrli Sparkle Copper Rear Diff Cover: Dodge Ram 2500 (03-10) / Ram 2500 / Ram 3500 (11-18)

Wehrli

Regular price $414.00 $401.58 3% off

Unit price
per 

Wehrli Sparkle Granulated Smith 11.5in AAM Rear Diff Cover: Fits Dodge Ram / Ram 2500 / 3500 (03-18)
Wehrli Sparkle Granulated Smith 11.5in AAM Rear Diff Cover: Fits Dodge Ram / Ram 2500 / 3500 (03-18)
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Wehrli Candy Red Rear Differential Cover: Ram 2500 / 3500 2019-2024
Wehrli Candy Red Rear Differential Cover: Ram 2500 / 3500 2019-2024
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Wehrli Candy Red Rear Differential Cover: Ram 2500 / 3500 2019-2024

Wehrli

Regular price $414.00 $401.58 3% off

Unit price
per 

Duramax, Cummins, and Power Stroke Diesel Performance with Wehrli Custom Fabrication

Wehrli Custom Fabrication (WCFab) specializes in high-quality diesel performance parts and metal fabrication for Duramax, Cummins, and Power Stroke trucks. Their engineered solutions focus on durability, airflow, and heat management—key factors for tow rigs and race-oriented diesel builds alike.

What makes Wehrli Custom Fabrication stand out in diesel performance?

WCFab is known for precision metal fabrication combined with truck-focused product development. Their parts are designed to handle the extreme conditions of heavy towing and high-performance racing. This focus ensures components not only improve airflow and heat dissipation but also maintain long-term durability under demanding use.

  • Custom-engineered hard parts tailored for diesel platforms
  • Emphasis on heat management to protect engine components
  • Solutions built to withstand the rigors of towing and racing

How do I choose the right Wehrli parts for my diesel truck?

Selecting the right WCFab components depends on your truck’s engine platform—Duramax, Cummins, or Power Stroke—and your build goals. Consider whether you need upgrades for heavy towing, improved airflow for performance, or enhanced durability for racing conditions. Matching parts to your specific application ensures optimal results and reliability.

What should I expect after installing Wehrli Custom Fabrication parts?

Installing Wehrli parts typically results in improved engine efficiency through better airflow and heat control, which can translate to more consistent performance under load. Whether you’re upgrading a tow rig or building a race truck, these components help maintain engine health and reliability. Explore the full Wehrli collection at FastHemis to find parts engineered for your diesel platform and build needs.

SELECT YOUR VEHICLE