Mahle 4839 Engine Cylinder Head Gasket

Engine Cylinder Head Gasket for BMW

Mahle 4839 is an OEM-standard engine cylinder head gasket built with composite material for sealing performance in service applications. It is listed for select BMW 3 Series and 5 Series models, including the 325i, 325is, 325iX, 525i, 528e, 325e, and 325es.

Key Features

• Composite cylinder head gasket material for dependable sealing.
• OEM-standard item grade for service replacement use.
• 0.07 in. / 1.83 mm thickness.
• 85.09 mm cylinder bore diameter.
• No gasket sealant included.
• Torque-to-yield fastener application noted in fitment guidance.

Detailed Description

Mahle 4839 is a composite engine cylinder head gasket for BMW inline engine applications where accurate sealing between the cylinder head and engine block is critical. The gasket’s OEM-standard construction and 85.09 mm bore diameter make it a direct service part for engines used in the BMW 325i, 325is, 325iX, 525i, 528e, 325e, and 325es. This part number, 4839, is cross-referenced to FEL-PRO 9397B and Beck/Arnley 035-1771 for the same application.

What It Helps Address

• Coolant or combustion leakage at the cylinder head sealing surface.
• Compression loss caused by a worn or damaged head gasket.
• Sealing issues after cylinder head service or engine teardown.
• Replacement needs on BMW engines that specify a composite gasket.

Installation Notes

Fitment notes specify replacing cylinder head bolts when using a composite engine cylinder head gasket. Verify bore diameter, thickness, and engine application before installation. Follow the service procedure for the specific BMW model and confirm all mating surfaces are clean and flat. Part number 4839 should be matched to the vehicle’s engine specification before assembly.

Quality Assurance

MAHLE gaskets are trusted by OEMs and technicians worldwide for sealing applications. This gasket is built to OEM-standard specifications for service replacement use.