Head Gasket for 4M40 - 4 Notch

Replacement cylinder head gasket (4-notch) for the 4M40 engine. Manufactured to OEM specifications for a reliable, leak-free seal.

The head gasket forms the critical seal between the cylinder head and engine block, containing combustion pressure and preventing coolant or oil mixing. Using the correct grade and thickness is essential for a successful head rebuild.

Important: This is a specific grade/thickness variant (4-notch). Please verify your engine's required head gasket grade before ordering. Contact AHS with your casting number if unsure.

Engine Specifications:

• Engine code: 4M40

Warranty: 12 months from the date of purchase. AHS stands behind the quality of every part supplied.

Not sure if this fits your vehicle? Contact the AHS team with your vehicle registration or VIN and we'll confirm compatibility before you order.