Engines and Components› Cylinder Heads and Components

Cometic Gasket

Cometic GM LB7/LLY/LBZ/LMM/LGH/LML Duramax .140in MLS Cylinder Head Gasket - 4.100in Bore - LHS

$439.45

SKU: C006 C5883-140

In Stock
In Stock
Ships by Jun 20
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Cometic C5883-140 is an engine gasket designed for GM LB7/LLY/LBZ/LMM/LGH/LML Duramax engines. It features a Multi-Layer Steel (MLS) construction with a Viton coating on the outer layers, offering a compressed operating thickness of 0.036 inches and a bore of 4.100 inches.

Cometic utilizes advanced materials and manufacturing processes to ensure reliable sealing in demanding environments.

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

BrandCometic Gasket
Part NumberC006 C5883-140

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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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