Gaskets and Seals Engine Gaskets and Seals

Cometic Gasket

Cometic Nissan RB-25 6 CYL 87mm .040 inch MLS Head Gasket

$216.10

SKU: C006 C4318-040

In Stock
In Stock
Ships by Jun 15
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Cometic C4318-040 is a Multi-Layer Steel (MLS) head gasket designed for high-output engines. It features load-controlled embossments that distribute load across the sealing area, creating an exceptional seal with less clamp load and reduced bore distortion. The outer stainless steel layers are coated with FKM (Viton) for high temperature and chemical resistance, and a topcoat of PTFE (Teflon) enhances resistance to fret and improves cold sealing.

Fitment

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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

BrandCometic Gasket
Part NumberC006 C4318-040

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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