Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.

CATERPILLAR · Engine
3590908
In stock · ships from Knoxville
This is a cylinder head gasket for Caterpillar 3406E, C15, C16, and C18 heavy-duty diesel engines.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 4 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Caterpillar
Caterpillar
Verify exact engine serial number and head gasket thickness requirements for your specific build.
Part data verified against 5 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It sits between the cylinder head and the engine block, sealing combustion pressure and separating oil and coolant passages. The gasket should be replaced whenever the cylinder head is removed for service, or if there are signs of compression loss, coolant in oil, or overheating. It is built to exact Cat specifications for durability and reliable sealing.
Part Number: 3590908
HEAD GASKET
Dealer: KP Services Crossville
Compatibility, alternatives, and more