Mahle HS3978K Engine Cylinder Head Gasket Set

Engine Cylinder Head Gasket Set

Mahle HS3978K is an OEM-standard engine cylinder head gasket set built for specific Ford applications. It combines composite and perforated steel sealing materials to support dependable sealing across the cylinder head, intake, and exhaust interfaces.

Key Features

• OEM-standard gasket set for engine sealing service
• Composite cylinder head gasket material for consistent sealing
• Perforated steel exhaust manifold gasket material for added durability
• Composite intake manifold gasket material for matched sealing surfaces
• Additional miscellaneous gaskets and seals included in the set
• Part number HS3978K for accurate ordering and catalog lookup

Detailed Description

Mahle HS3978K is a cylinder head gasket set engineered for Ford truck, van, and chassis applications from 1990-1992. It is listed for the Ford E-250 Econoline Club Wagon, E-350 Econoline, E-350 Econoline Club Wagon, F-250, F-350, F-53 Motorhome Chassis, and F-Super Duty, with fitment notes indicating cylinder head bolts are not included and replacement is recommended. The set uses composite sealing materials for the head and intake gaskets, along with perforated steel for the exhaust manifold gasket, and it is not a torque-to-yield application. This part cross-references FEL-PRO HS 8558 PT-6 and Ford E8TZ 6079-B for the same application. Mahle HS3978K is a practical choice when servicing sealing surfaces on compatible Ford engines and when a complete gasket set is needed for reassembly.

What It Is Used For

• Replacing worn or damaged cylinder head sealing components
• Addressing coolant or compression loss at the head gasket interface
• Servicing intake manifold sealing surfaces during engine repair
• Restoring exhaust manifold sealing during top-end engine work
• Supporting engine reassembly after cylinder head removal

Installation Notes and Tips

Verify engine code and build date before ordering, since the listed Ford applications are limited to 1990-1992 coverage and one 1992 cutoff date through 2/15/92. Review the fitment notes carefully, as cylinder head bolts are not included and replacement is recommended. Clean all mating surfaces thoroughly and confirm gasket orientation before assembly. Use the part number HS3978K to match the correct gasket set for your application.

Quality Assurance

Mahle gaskets are trusted by OEMs and technicians worldwide for sealing applications. HS3978K is specified as OEM standard, and the material selection reflects a service-grade sealing solution for engine repair.