Mahle 54688 Engine Cylinder Head Gasket - Right

Engine Cylinder Head Gasket Overview

This Mahle engine cylinder head gasket is built for direct sealing performance in applications that demand precise combustion chamber sealing. It fits select BMW and Land Rover models, including BMW 540i and Range Rover applications, and uses OEM-standard multi-layered steel construction for dependable sealing under heat and pressure.

Key Features

• Multi-layered steel construction for stable sealing performance.
• OEM standard grade for service and repair applications.
• 0.10 in. / 2.51 mm thickness for application-specific fitment.
• Torque-to-yield fastener application noted for the listed vehicles.
• Fits select BMW 540i, BMW X5, BMW 740i, BMW 740iL, BMW 840Ci, and Land Rover Range Rover applications.

Detailed Description

Mahle 54688 is an engine cylinder head gasket engineered for the right-side applications listed in the fitment data. The gasket uses multi-layered steel material and is specified at 0.10 in. thickness, with a 3.62 in. cylinder bore diameter. Fitment notes call for cylinder head bolt replacement on the listed vehicles, which is important when restoring proper clamping force and sealing integrity. This part cross-references BMW 11 12 1 433 474 and FEL-PRO 26347 PT for the same application.

For BMW 540i, BMW 740i, BMW 740iL, BMW 840Ci, BMW X5, and Land Rover Range Rover service work, Mahle 54688 supports accurate head sealing where combustion pressure, coolant, and oil passages must remain isolated. The part number 54688 is useful when matching an OE-style replacement to the exact engine application.

What It Helps Address

• Coolant and oil leakage at the cylinder head interface.
• Loss of compression from a compromised head seal.
• Combustion gas leakage between the head and block.
• Sealing issues after cylinder head service or overhaul.
• Fitment mismatch when replacing an OE-style head gasket.

Installation Notes and Tips

Confirm the engine application, right-side position, and model year before installation. The fitment notes specify cylinder head bolt replacement for the listed vehicles, and torque-to-yield fasteners require correct tightening procedures. Clean mating surfaces thoroughly and verify that the cylinder head and block are within service specifications before assembly. Use the part number 54688 to confirm the correct gasket for the application.

Quality Assurance

Mahle gaskets are trusted by OEMs and technicians worldwide for sealing applications. This gasket is built to OEM standard specifications for the listed fitments.