• Wehrli 17-19 GM Duramax L5P 4in Intake Kit - Fine Texture Black
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Wehrli Custom Fab

Wehrli 17-19 GM Duramax L5P 4in Intake Kit - Fine Texture Black

Wehrli 17-19 GM Duramax L5P 4in Intake Kit - Fine Texture Black

Part number: WCFWCF100344-FTB

$606.25 USD
$606.25 USD
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  • Ships direct from the brand or supplier
  • Tracking emailed when it ships
  • Free fitment check before you order

Wehrli Custom Fab Wehrli, with the part number and details listed below. An aftermarket air intake replaces the factory airbox and tube with a freer-flowing filter and pipe.

Quick facts

  • Brand: Wehrli Custom Fab
  • Part type: Air intake
  • Model years: 2017–2019

Listed fitment

  • 2017-2019 Chevrolet Silverado 2500 HD High Country
  • 2017-2019 Chevrolet Silverado 2500 HD LT
  • 2017-2019 Chevrolet Silverado 2500 HD LTZ
  • 2017-2019 Chevrolet Silverado 2500 HD WT
  • 2017-2019 Chevrolet Silverado 3500 HD High Country
  • 2017-2019 Chevrolet Silverado 3500 HD LT
  • 2017-2019 Chevrolet Silverado 3500 HD LTZ
  • 2017-2019 Chevrolet Silverado 3500 HD WT
  • 2017-2019 GMC Sierra 2500 HD Base
  • 2017-2019 GMC Sierra 2500 HD Denali
  • 2017-2019 GMC Sierra 2500 HD SLE
  • 2017-2019 GMC Sierra 2500 HD SLT
  • 2017-2019 GMC Sierra 3500 HD Base
  • 2017-2019 GMC Sierra 3500 HD Denali
  • 2017-2019 GMC Sierra 3500 HD SLE
  • 2017-2019 GMC Sierra 3500 HD SLT

Tip: Check that the mass airflow sensor fits correctly and clear any codes after install.

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Wehrli Custom Fab air intake: what to know

Intakes change the induction sound and can help airflow, especially on modified engines.

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? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.

Ask about fitment

What else to plan for

More for your car: Fuel & air intake

Questions about air intake

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.
Is it legal in my state?
Some states require emissions-approved intakes. Check the listing and local rules.
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

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