Wehrli Custom Fab

Wehrli Custom Fab

Boost your diesel truck's overall power and reliability with Wehrli Custom Fab. Specializing in both performance and bulletproofing parts, Wehrli is your go-to source for Duramax, Powerstroke, and Cummins HD trucks. Their impressive lineup of cold air intakes, wiring kits, adapter flanges, bolt kits, grilles, and more, ensures you can handle big power with ease. What sets Wehrli apart is their dedication to quality and innovation, providing everything you need to maximize your diesel truck's performance and durability. 
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Wehrli 100260 CP3 Conversion Kit with out Pump | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100260 CP3 Conversion Kit with out Pump | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Wehrli Custom Fab

Wehrli 100260 CP3 Conversion Kit with out Pump | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

SKU: WCF100260
$771.15
Wehrli 100850 60 inch Traction Bar Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax RCLB/CCSB/ECSB
Wehrli 100850 60 inch Traction Bar Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax RCLB/CCSB/ECSB
Wehrli 100850 60 inch Traction Bar Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax RCLB/CCSB/ECSB
Wehrli 100850 60 inch Traction Bar Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax RCLB/CCSB/ECSB

Wehrli Custom Fab

Wehrli 100850 60 inch Traction Bar Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax RCLB/CCSB/ECSB

SKU: WCF100850-GB
From $969.03
Wehrli 100328 Passenger Side Upper Crossover Intercooler Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100328 Passenger Side Upper Crossover Intercooler Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100328 Passenger Side Upper Crossover Intercooler Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100328 Passenger Side Upper Crossover Intercooler Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100328 Passenger Side Upper Crossover Intercooler Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Wehrli Custom Fab

Wehrli 100328 Passenger Side Upper Crossover Intercooler Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

SKU: WCF100328-GB
From $417.10
Wehrli 100303 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2007.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM
Wehrli 100303 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2007.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM
Wehrli 100303 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2007.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM
Wehrli 100303 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2007.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM
Wehrli 100303 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2007.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM

Wehrli Custom Fab

Wehrli 100303 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2007.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM

SKU: WCF100303-GB
From $800.25
Wehrli 100301 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100301 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100301 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100301 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100301 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Wehrli Custom Fab

Wehrli 100301 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: WCF100301-GB
From $800.25
Wehrli 100742 Upper Coolant Pipe Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100742 Upper Coolant Pipe Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100742 Upper Coolant Pipe Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100742 Upper Coolant Pipe Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Wehrli Custom Fab

Wehrli 100742 Upper Coolant Pipe Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: WCF100742-GB
From $155.20
Wehrli 100696 Upper Coolant Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100696 Upper Coolant Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100696 Upper Coolant Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100696 Upper Coolant Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100696 Upper Coolant Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Wehrli Custom Fab

Wehrli 100696 Upper Coolant Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

SKU: WCF100696-GB
From $155.20
Wehrli 100682 3.5" inch Passenger Side Cold Side Intercooler Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100682 3.5" inch Passenger Side Cold Side Intercooler Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100682 3.5" inch Passenger Side Cold Side Intercooler Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100682 3.5" inch Passenger Side Cold Side Intercooler Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Wehrli Custom Fab

Wehrli 100682 3.5" inch Passenger Side Cold Side Intercooler Pipe Kit | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

SKU: WCF100682-GB
From $334.65
Wehrli 100355 3 inch High Flow Passenger Cold Side Intercooler Pipe Kit | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100355 3 inch High Flow Passenger Cold Side Intercooler Pipe Kit | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100355 3 inch High Flow Passenger Cold Side Intercooler Pipe Kit | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100355 3 inch High Flow Passenger Cold Side Intercooler Pipe Kit | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Wehrli Custom Fab

Wehrli 100355 3 inch High Flow Passenger Cold Side Intercooler Pipe Kit | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: WCF100355-GB
From $295.85
Wehrli 100645 OEM Placement Coolant Tank Kit | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
Wehrli 100645 OEM Placement Coolant Tank Kit | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100645 OEM Placement Coolant Tank Kit | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100645 OEM Placement Coolant Tank Kit | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100645 OEM Placement Coolant Tank Kit | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100645 OEM Placement Coolant Tank Kit | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: WCF100645-GB
From $474.33
Wehrli 100441 Stage 2 High Flow Intake Bundle Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100441 Stage 2 High Flow Intake Bundle Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100441 Stage 2 High Flow Intake Bundle Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Wehrli Custom Fab

Wehrli 100441 Stage 2 High Flow Intake Bundle Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: WCF100441-GB
From $1,430.75
Wehrli 100433 OEM Placement Coolant Tank Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
IN STOCK
Wehrli 100433 OEM Placement Coolant Tank Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100433 OEM Placement Coolant Tank Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100433 OEM Placement Coolant Tank Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100433 OEM Placement Coolant Tank Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Wehrli Custom Fab

Wehrli 100433 OEM Placement Coolant Tank Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: WCF100433-GB
From $493.73
Wehrli 100420 Billet Top Outlet Thermostat Housing & Upper Coolant Pipe Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100420 Billet Top Outlet Thermostat Housing & Upper Coolant Pipe Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100420 Billet Top Outlet Thermostat Housing & Upper Coolant Pipe Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100420 Billet Top Outlet Thermostat Housing & Upper Coolant Pipe Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100420 Billet Top Outlet Thermostat Housing & Upper Coolant Pipe Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: WCF100420-GB
From $474.33
Wehrli 100394 Billet Oil Fill Cap Clear Anodized | 1998.5-2024 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
IN STOCK
Wehrli 100394 Billet Oil Fill Cap Clear Anodized | 1998.5-2024 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Wehrli 100394 Billet Oil Fill Cap Clear Anodized | 1998.5-2024 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Wehrli 100394 Billet Oil Fill Cap Clear Anodized | 1998.5-2024 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

Wehrli Custom Fab

Wehrli 100394 Billet Oil Fill Cap Clear Anodized | 1998.5-2024 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

SKU: WCF100394
$58.20
Wehrli 100381 3.5" inch Passenger Cold Side Intercooler Pipe Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100381 3.5" inch Passenger Cold Side Intercooler Pipe Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100381 3.5" inch Passenger Cold Side Intercooler Pipe Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100381 3.5" inch Passenger Cold Side Intercooler Pipe Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100381 3.5" inch Passenger Cold Side Intercooler Pipe Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100381 3.5" inch Passenger Cold Side Intercooler Pipe Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Wehrli Custom Fab

Wehrli 100381 3.5" inch Passenger Cold Side Intercooler Pipe Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: WCF100381-GB
From $373.45
Wehrli 100352 3 inch Driver Side Intercooler Pipe | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100352 3 inch Driver Side Intercooler Pipe | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100352 3 inch Driver Side Intercooler Pipe | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100352 3 inch Driver Side Intercooler Pipe | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100352 3 inch Driver Side Intercooler Pipe | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100352 3 inch Driver Side Intercooler Pipe | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100352 3 inch Driver Side Intercooler Pipe | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: WCF100352-GB
From $305.55
Wehrli 100466 Passenger Side Intercooler Outlet Elbow Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100466 Passenger Side Intercooler Outlet Elbow Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100466 Passenger Side Intercooler Outlet Elbow Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100466 Passenger Side Intercooler Outlet Elbow Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: WCF100466-GB
From $231.83
Wehrli 100223 Standard Output (SO) Upper Coolant Pipe | 2019-2024 RAM 2500/3500 6.7L Cummins
Wehrli 100223 Standard Output (SO) Upper Coolant Pipe | 2019-2024 RAM 2500/3500 6.7L Cummins
Wehrli 100223 Standard Output (SO) Upper Coolant Pipe | 2019-2024 RAM 2500/3500 6.7L Cummins
Wehrli 100223 Standard Output (SO) Upper Coolant Pipe | 2019-2024 RAM 2500/3500 6.7L Cummins
Wehrli 100223 Standard Output (SO) Upper Coolant Pipe | 2019-2024 RAM 2500/3500 6.7L Cummins

Wehrli Custom Fab

Wehrli 100223 Standard Output (SO) Upper Coolant Pipe | 2019-2024 RAM 2500/3500 6.7L Cummins

SKU: WCF100223-GB
From $159.08
Wehrli 100140 Allison Transfer Case Brace | 2011-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100140 Allison Transfer Case Brace | 2011-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100140 Allison Transfer Case Brace | 2011-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100140 Allison Transfer Case Brace | 2011-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: WCF100140-GB
From $179.45
Wehrli 100693 Y-Bridge Kit | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
Wehrli 100693 Y-Bridge Kit | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Wehrli Custom Fab

Wehrli 100693 Y-Bridge Kit | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

SKU: WCF100693-RED
From $823.53
Wehrli 100796 MAP Sensor Seal & Bracket | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100796 MAP Sensor Seal & Bracket | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100796 MAP Sensor Seal & Bracket | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: WCF100796
$17.46
Wehrli 100425 Valance Filler Panel Kit with Tow Hooks Raw | 2015-2019 GM Silverado 2500HD/3500HD
IN STOCK
Wehrli 100425 Valance Filler Panel Kit with Tow Hooks Raw | 2015-2019 GM Silverado 2500HD/3500HD
Wehrli 100425 Valance Filler Panel Kit with Tow Hooks Raw | 2015-2019 GM Silverado 2500HD/3500HD
Wehrli 100425 Valance Filler Panel Kit with Tow Hooks Raw | 2015-2019 GM Silverado 2500HD/3500HD
Wehrli 100425 Valance Filler Panel Kit with Tow Hooks Raw | 2015-2019 GM Silverado 2500HD/3500HD

Wehrli Custom Fab

Wehrli 100425 Valance Filler Panel Kit with Tow Hooks Raw | 2015-2019 GM Silverado 2500HD/3500HD

SKU: WCF100425
$227.95
Wehrli 100393 Marker Light Delete Kit, Billet, w/o Logo, Fine Texture Black | 2020-2026 GMC Sierra 2500HD/3500HD
Wehrli 100393 Marker Light Delete Kit, Billet, w/o Logo, Fine Texture Black | 2020-2026 GMC Sierra 2500HD/3500HD
Wehrli 100393 Marker Light Delete Kit, Billet, w/o Logo, Fine Texture Black | 2020-2026 GMC Sierra 2500HD/3500HD
Wehrli 100393 Marker Light Delete Kit, Billet, w/o Logo, Fine Texture Black | 2020-2026 GMC Sierra 2500HD/3500HD
Wehrli 100393 Marker Light Delete Kit, Billet, w/o Logo, Fine Texture Black | 2020-2026 GMC Sierra 2500HD/3500HD

Wehrli Custom Fab

Wehrli 100393 Marker Light Delete Kit, Billet, w/o Logo, Fine Texture Black | 2020-2026 GMC Sierra 2500HD/3500HD

SKU: WCF100393
$299.73
Wehrli 100704 3 inch Stainless Turbo Downpipe | 2011-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100704 3 inch Stainless Turbo Downpipe | 2011-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Wehrli 100704 3 inch Stainless Turbo Downpipe | 2011-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Wehrli Custom Fab

Wehrli 100704 3 inch Stainless Turbo Downpipe | 2011-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

SKU: WCF100704
$257.05

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