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Engines and Components› Oiling Systems

Wehrli

Wehrli S400 Compressor Outlet O-Ring Seal

$1.99 $1.93 Save $0.06

SKU: W005 WCF203-21

In Stock
In Stock
Ships by Jul 29
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Wehrli WCF203-21 is a replacement O-ring seal designed for use with Borg Warner S400 Turbocharger compressor cover outlet V-band flanges. It serves as a direct replacement part for ensuring a proper seal.

This O-ring is utilized in various Wehrli Custom Fabrication turbocharger kits, including S400 single turbo kits and S400/stock twin turbo kits for Duramax and Cummins engines.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandWehrli
Part NumberW005 WCF203-21

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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