Sale

Cometic

MLS Head Gasket 0.040" 81.5mm Bore

$107.24 $86.99 Save $20.25

SKU: C4239-040

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

Description

The Cometic CGS-C4239-040 is a Multi-Layer Steel (MLS) head gasket engineered for Honda and Acura DOHC engines. This gasket features a precise 81.5mm bore size and a compressed operating thickness of 0.040 inches, making it suitable for specific engine builds. Comprised of multiple embossed layers of stainless steel, the outer layers are coated with Viton, a heat-resistant elastomer capable of withstanding temperatures up to 250°C (482°F). This construction provides maximum sealing performance for high-output engines and eliminates the need for additional sealants. MLS gaskets are ideal for combinations of aluminum heads with aluminum or cast iron blocks, offering enhanced strength, rebound capability, and resistance to corrosion. The center shim layer is uncoated stainless steel and can be varied to meet different thickness requirements. This Cometic head gasket is compatible with various Acura Integra models from 1990-2001, including GS, LS, RS, and Special Edition submodels. It is specifically designed for non-VTEC B18A and B18B engines. It is crucial for buyers to verify fitment for their specific vehicle, as UroTuning does not list all compatible vehicles. WARNING: This product can expose you to chemicals, including those listed on www.P65Warnings.ca.gov, which are known to the State of California to cause cancer and reproductive harm.

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 NumberC4239-040
CategoryEngines and Components

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