94580082 GM Metal head gasket

What is this part?

The GM metal head gasket 94580082 is a genuine OEM engine sealing component designed to seal the joint between the engine block and the cylinder head.

What does it do?

This OEM metal head gasket maintains a leak-free seal between combustion chambers, oil passages, and coolant channels under high pressure and extreme temperatures. Typically manufactured from multi-layer steel (MLS) or reinforced metal materials, it ensures consistent clamping force, resistance to thermal expansion, and long-term durability. A genuine GM metal head gasket is engineered to factory specifications to protect engine performance, compression integrity, and cooling efficiency.

When to replace

The GM metal head gasket 94580082 should be replaced if there are signs of head gasket failure such as coolant or oil leaks, overheating, loss of compression, white exhaust smoke, or diagnostic fault codes related to engine performance. Metal head gaskets must always be replaced during cylinder head removal. Installing a genuine OEM gasket restores proper sealing and helps prevent serious engine damage.

Compatibility

The genuine GM metal head gasket 94580082 is compatible with selected GM vehicles and specific engine variants. Compatibility depends on engine type, cylinder configuration, displacement, and model year. Always verify the part number 94580082 before purchase to ensure correct fitment.

Installation: DIY or service?

Installation of the genuine OEM GM metal head gasket 94580082 is not recommended as a DIY task. Correct installation requires precise surface preparation, torque sequences, angle tightening procedures, and often replacement of head bolts. Professional installation is essential to ensure reliable sealing and long-term engine protection.