Sale

Cometic

MLS Cylinder Head Gasket, 80mm Bore, .056" Compressed

$152.34 $123.99 Save $28.35

SKU: C4122-056

In Stock
In Stock
Ships by Aug 29
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Cometic C4122-056 is a Multi-Layer Steel (MLS) cylinder head gasket specifically engineered for Mazda B6D, B6T, and B6ZE engines. This gasket features an 80mm bore size and a compressed thickness of .056 inches, ensuring a precise fit for performance applications. Constructed from five layers of stainless steel, this MLS gasket utilizes embossed layers with an Advanced Multi-Polymer Coating (AMP) to provide superior sealing capabilities. This advanced construction helps to maintain seal integrity even under extreme pressure and temperature conditions, making it a robust choice for engine builds. This head gasket is designed for specific Mazda engines, including those found in the 1990-1993 Mazda Miata NA with the 1.6L DOHC B6 engine. The OEM part numbers it replaces are B6F4-10-271B and F4JY-6051-A.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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
Part NumberC4122-056
CategoryGaskets and Seals

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

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

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy