Gaskets and Seals› Engine Gaskets and Seals

Merchant Automotive

Duramax Head Gasket Kit - LLY LBZ LMM Kit OEM Bolts and Grade C Head Gaskets

$740.47

SKU: M01D 45051C

In Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Kit for rebuilding GM Duramax LLY, LBZ, or LMM diesel engines. Includes OE-Style Head Bolts, Grade C Head Gaskets, and various other seals and gaskets for intake, exhaust, fuel, oil, and cooling systems.

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.

Available on iOS & Android

Specifications

BrandMerchant Automotive
Part NumberM01D 45051C

Videos

Duramax head gasket placement left/right- Dirtys House of Diesel

Duramax head gasket placement left/right- Dirtys House of Diesel
How to install the seals on a Duramax Engine

How to install the seals on a Duramax Engine
Product Spotlight: Duramax Oil Cooler Seal and Gasket Kits, 2001-2016

Product Spotlight: Duramax Oil Cooler Seal and Gasket Kits, 2001-2016
How-to replace & rebuild the diesel fuel filter head on a Duramax engine

How-to replace & rebuild the diesel fuel filter head on a Duramax engine

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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