Mahle 4957 Engine Cylinder Head Gasket

Mahle 4957 Cylinder Head Gasket

The Mahle 4957 engine cylinder head gasket is an OEM-standard composite gasket built for reliable sealing in select GM applications. It is specified for 1991-1997 Chevrolet Lumina, 1995-1997 Chevrolet Monte Carlo, 1991-1996 Oldsmobile Cutlass Supreme, and 1991-1996 Pontiac Grand Prix applications that require a composite head gasket.

• Composite cylinder head gasket material for OEM-style sealing
• Thickness: 0.07 in. / 1.73 mm
• Cylinder bore diameter: 3.70 in. / 93.98 mm
• Torque-to-yield: Yes
• Gasket sealant included: No
• OEM standard item grade

Detailed Product Overview

Mahle 4957 is an engine cylinder head gasket made from composite material and engineered to match the sealing requirements of the listed Chevrolet, Oldsmobile, and Pontiac engines. Mahle gaskets are used by OEMs and technicians worldwide, and this part follows that same OE-style approach with a precise bore opening and controlled compressed thickness. If you are servicing a 1991-1997 Chevrolet Lumina, 1995-1997 Chevrolet Monte Carlo, or related Cutlass Supreme and Grand Prix applications, this gasket supports proper combustion sealing and coolant/oil separation at the cylinder head interface. This part cross-references FEL-PRO 9113 PT and General Motors 10127488 for the same application.

Common Repair Uses

• Head gasket replacement after combustion gas leakage
• Repair for coolant mixing with engine oil at the head-to-block seal
• Correction of compression loss from a failed cylinder head gasket
• Service work on engines requiring a composite head gasket with torque-to-yield fasteners
• Restoration of sealing on Chevrolet Lumina, Chevrolet Monte Carlo, Oldsmobile Cutlass Supreme, and Pontiac Grand Prix engines

Installation Notes and Tips

Replace cylinder head bolts when using a composite engine cylinder head gasket, as noted in the fitment data. Verify cylinder head and block surfaces are clean, flat, and free of old gasket material before installation. Confirm bore size, thickness, and engine application against the vehicle service information before assembly. Follow the manufacturer’s torque sequence and torque-to-yield procedure exactly during installation.

Quality Assurance

Mahle supplies sealing products trusted by OEMs and technicians around the globe. The 4957 is an OEM-standard gasket built to meet the sealing demands of the listed applications and to support consistent engine repair results.