Engines and Components› Engine Bearings

Clevite

ENGINE WATER PUMP HOUSING O-RING

$54.63

SKU: C003 GS34037

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

Easy — 1–2 hours

Description

The MAHLE GS34037 is a water pump mounting gasket set designed for 2017-2022 GM 6.6L Duramax L5P engines. It restores proper sealing performance to prevent leaks, reduced efficiency, pressure loss, and potential engine damage. The GS34037 is manufactured to strict OEM standards, ensuring dependable durability.

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

BrandClevite
Part NumberC003 GS34037

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