Mahle HS54989 Engine Cylinder Head Gasket Set

Engine Cylinder Head Gasket Set Overview

Mahle HS54989 is an OEM-standard engine cylinder head gasket set for select Ford and Lincoln applications. It is built around multi-layered steel cylinder head gaskets and includes the sealing components needed for a detailed top-end engine service.

Compatible With 2010-2014 Ford Explorer, 2010-2014 Ford Flex, 2010-2014 Ford Taurus, 2010-2014 Lincoln MKS, 2010-2014 Lincoln MKT, and 2015 Ford Explorer, Ford Flex, Ford Taurus, Lincoln MKS, and Lincoln MKT with the listed build-date notes.

• Multi-layered steel cylinder head gasket material for durable sealing under engine heat and pressure.
• OEM-standard grade for service work that follows original-equipment specifications.
• Includes intake, exhaust, valve cover, turbocharger, timing cover, coolant, and other related seals and gaskets.
• Designed for Ford Explorer, Ford Flex, Ford Taurus, Lincoln MKS, and Lincoln MKT applications covered by the fitment data.
• Part number HS54989 for accurate ordering and service identification.

Detailed Application Notes

This Mahle gasket set is intended for engine resealing work where multiple sealing points are serviced at once. The kit combines cylinder head gaskets with supporting gaskets and seals such as valve stem seals, spark plug tube seals, thermostat O-ring, throttle body gasket, and turbocharger mounting seals, helping restore sealing integrity across the top end of the engine. The Ford AA5Z-6079-A cross-reference applies to the same application, and HS54989 is the part number to verify during lookup.

Common Repair Uses

• Oil or coolant leakage at the cylinder head sealing surface.
• Loss of compression from a compromised head gasket.
• Intake or exhaust manifold sealing issues during engine service.
• Turbocharger, valve cover, or timing cover seepage tied to worn seals.
• Top-end reseal work on Ford Explorer, Ford Flex, Ford Taurus, Lincoln MKS, or Lincoln MKT engines.

Installation Notes

Fitment notes specify that cylinder head bolts are not included and cylinder head bolt replacement is recommended. Fuel injector mounting hardware is also not included. Confirm the build date note for 2015 applications, since coverage is listed through 11/3/14 for those vehicles. Follow factory torque procedures and sealing-surface preparation requirements during installation.

Quality Assurance

Mahle gaskets are trusted by OEMs and technicians worldwide for sealing applications. HS54989 is an OEM-standard gasket set built for service accuracy and consistent sealing performance.