Gaskets and Seals› Engine Gaskets and Seals
Cometic Gasket
Cometic 11-19 Beta RR350 88mm Bore Top End Gasket Kit
SKU: C006 C3777
Easy — 1–2 hours
Description
This kit features graphite gaskets with a steel core, laminated on both sides with flexible graphite, and includes fiber gaskets. The EST (Extreme Sealing Technology) variant uses embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber material. These gasket materials help dissipate heat away from the combustion ring.
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
| Brand | Cometic Gasket |
| Part Number | C006 C3777 |
Videos
Cometic Gaskets presented by J&P Cycles.
Review and Install of the Cometic Gasket for The Harley Primary Cover.
Cometic MLS Head Gaskets
Reviewing Cometic's MLX Head Gaskets
Harley-Davidson MLS Head gaskets | Torque Values | Doc Harley
How To Choose the Correct Base Gasket for Sherco 2-Stroke Motorcycles
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.
View Full Return Policy