Air and Fuel› Fuel Pumps, Regulators and Components

Wehrli

Wehrli LB7/LLY/LBZ/LMM Duramax S400 Twin/Compound Turbo Oil Line Kit

$213.17

SKU: W005 WCF100378

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Wehrli WCF100378 is a custom fabrication oil line kit designed for S400 twin/compound or remote mount turbo applications on LB7, LLY, LBZ, and LMM Duramax engines. This kit provides the necessary components for custom fabrication to safely deliver oil to engine components.

Fitment

Fitment Guaranteed

Don’t gamble
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.

Available on iOS & Android

Specifications

BrandWehrli
Part NumberW005 WCF100378

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.

View Full Return Policy