Cometic
Cometic Chrysler 318/340/360 4.080inch Bore .051 Thickness MLS Headgasket
Cometic Chrysler 318/340/360 4.080inch Bore .051 Thickness MLS Headgasket
Part number: CGSC5622-051
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- Free fitment check before you order
Listed for: Chrysler 318/340/360 4.080inchFitment notes & questions
318/340/360 4.080inch Bore .051 Thickness MLS Headgasket from Cometic, listed for the Chrysler 318. Head gasket jobs take the top of the engine apart, which is why most people replace the related gaskets and bolts at the same time.
Specifications
- Brand: Cometic
- Part type: Head gasket
Fitment for the Chrysler 318
Listed for the Chrysler 318. Check your year, model and trim against the title before you order.
What it does
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. Using the correct part for your exact engine keeps oil pressure, sealing and timing where the engine was designed to run, and doing related parts at the same time saves taking it apart twice.
Installation & tips
- Most head gaskets call for new head bolts and a flat, clean deck surface. Check the head and block before you reassemble.
- 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.
- Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.
FAQ
Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.
What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.
Before you order
- Confirm your year, make, model and trim match the fitment listed above (Chrysler 318).
Good to know
- Warranty: Warranty

Before you order: Chrysler 318/340/360 4.080inch head gasket fitment
The head gasket seals the cylinder head to the block, keeping combustion pressure in the cylinders and coolant and oil in their own passages.
Fitment notes
- Listed for: Chrysler 318/340/360 4.080inch.
- 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? Send us your year, make, model, engine and trim and we'll check before you order.
Ask about fitmentPlan the whole job
- 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
Questions about Chrysler 318/340/360 4.080inch head gasket
Will this fit my Chrysler 318/340/360 4.080inch?
What are signs of a bad head gasket?
Should I resurface the cylinder head?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.