• Wehrli 01-04 GM Duramax LB7 S400 Single Turbo Install Kit - Sparkle Copper
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Wehrli Custom Fab

Wehrli 01-04 GM Duramax LB7 S400 Single Turbo Install Kit - Sparkle Copper

Wehrli 01-04 GM Duramax LB7 S400 Single Turbo Install Kit - Sparkle Copper

Part number: WCFWCF100489-SC

$3,268.90 USD
$3,268.90 USD
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  • Ships direct from the brand or supplier
  • Tracking emailed when it ships
  • Free fitment check before you order

Wehrli from Wehrli Custom Fab. The part number and specifications are listed below. Replacement parts keep a factory turbo system working; upgrades raise its limits.

Quick facts

  • Brand: Wehrli Custom Fab
  • Part type: Turbo part
  • Model years: 2001–2004

Listed fitment

  • 2001-2004 Chevrolet Silverado 2500 HD Base
  • 2001-2004 Chevrolet Silverado 2500 HD LS
  • 2001-2004 Chevrolet Silverado 2500 HD LT
  • 2004 Chevrolet Silverado 2500 HD WT
  • 2001-2004 Chevrolet Silverado 3500 Base
  • 2001-2004 Chevrolet Silverado 3500 LS
  • 2001-2004 Chevrolet Silverado 3500 LT
  • 2004 Chevrolet Silverado 3500 WT
  • 2002-2004 GMC Sierra 2500 HD Base
  • 2001-2002 GMC Sierra 2500 HD SL
  • 2001-2004 GMC Sierra 2500 HD SLE
  • 2001-2004 GMC Sierra 2500 HD SLT
  • 2003-2004 GMC Sierra 2500 HD WT
  • 2002-2004 GMC Sierra 3500 Base
  • 2001-2002 GMC Sierra 3500 SL
  • 2001-2004 GMC Sierra 3500 SLE
  • 2001-2004 GMC Sierra 3500 SLT
  • 2004 GMC Sierra 3500 WT

Tip: Change fuel and tuning together with boost, and check for leaks with a boost leak tester.

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Wehrli Custom Fab turbo part: what to know

Boost changes need fuel and tuning to match, or the engine can run lean.

Fitment notes

  • Specs, lead time and warranty come from Wehrli Custom Fab and can change. The details above this guide are the latest we have.

Not sure it fits? Send us your year, make, model, engine and trim and we'll check before you order.

Ask about fitment

What else to plan for

More for your car: Fuel & air intake · Fuel & air intake

Questions about turbo part

Will this fit my car?
Check the title and details above for the vehicles and part number it is listed for. If you are not sure, contact us with your year, make, model, engine and trim and we will confirm fitment before you order.
Do I need a tune?
For most boost and turbo upgrades, yes.
Where do specs and warranty details come from?
From Wehrli Custom Fab. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.

Questions & answers

No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.

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