Cometic
Cometic Chrysler B/RB 4.50 inch Bore .066 inch MLS Headgasket
Cometic Chrysler B/RB 4.50 inch Bore .066 inch MLS Headgasket
Couldn't load pickup availability
- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
Listed for: Chrysler B/RB 4.50Fitment notes & questions
Chrysler B/RB 4.50 inch Bore .066 inch MLS Headgasket by Cometic for Chrysler. The head gasket seals the cylinder head to the block, keeping combustion pressure in the cylinders and coolant and oil in their own passages.
Quick facts
- Brand: Cometic
- Part type: Head gasket
- Listed for: Chrysler
Good to know
- Warranty terms: Warranty
Tip: Most head gaskets call for new head bolts and a flat, clean deck surface. Check the head and block before you reassemble.

Cometic head gasket for the Chrysler B/RB 4.50: what to know
A failed head gasket can mix coolant and oil, push coolant out of the system or cause overheating, so it is a job worth doing once and doing right.
Fitment notes
- Listed for: Chrysler B/RB 4.50.
- Specs, lead time and warranty come from Cometic and can change. The details above this guide are the latest we have.
Not sure it fits? Message us your vehicle details and we'll double-check fitment before you buy.
Ask about fitmentWhat else to plan for
- Head bolts. Many engines use torque-to-yield head bolts that should not be reused.
- Coolant. Refill with the coolant type your engine calls for.
- Valve cover and intake gaskets. They come off during the job, so it is the time to replace them.
More for your car: Chrysler Parts · All Head Gaskets · Engine