Elring 310.751 Engine Valve Stem Oil Seal - Exhaust

Elring 310.751 Valve Stem Oil Seal

The Elring 310.751 engine valve stem oil seal is built for precise sealing in Mercedes-Benz inline and V8 applications that call for a 12.0 mm inner diameter, 17.5 mm outer diameter, and 10.5 mm thickness. Made from FPM (fluoride rubber), it is specified for heat and oil exposure in the valve train area.

Compatible with Mercedes-Benz 190E, 260E, 300E, 300CE, 300SE, 300SEL, and 300TE applications listed below, this valve stem seal supports accurate fitment for exhaust and standard valve positions where specified. The Elring 310.751 is a direct-reference sealing component for engine service work that requires the correct valve stem diameter of 8.2 mm.

Key Features

• Brand: Elring
• Part number: 310.751
• Engine valve stem oil seal for sealing the valve guide area
• FPM (fluoride rubber) construction for oil and heat resistance
• Inside diameter: 12.0 mm
• Outside diameter: 17.5 mm
• Thickness: 10.5 mm
• Valve stem diameter: 8.2 mm

Detailed Description

This Elring valve stem oil seal is used in engine cylinder head service to control oil flow around the valve stem and guide interface. Correct sealing at this point helps maintain cleaner combustion chambers and stable valve-train operation in Mercedes-Benz 190E and Mercedes-Benz 300E applications, as well as related 260E, 300CE, 300SE, 300SEL, and 300TE models. The Elring 310.751 matches the listed dimensional requirements for the specified fitments and is a practical OE-style sealing part for rebuild and repair work.

This part cross-references Four Seasons 76602 for the same application.

What It Helps Address

• Oil leakage past the valve stem seal
• Blue exhaust smoke caused by oil entering the combustion chamber
• Oil consumption related to worn valve stem sealing
• Valve-train contamination from degraded seal material
• Service replacement during cylinder head repair or rebuild

Installation Notes and Tips

• Verify valve stem diameter, seal height, and outer diameter before installation.
• Inspect valve guides and stems for wear before fitting a new seal.
• Use clean assembly practices to avoid damaging the FPM sealing lip.
• Confirm the correct position when servicing applications listed as Exhaust.
• Follow the vehicle service procedure for cylinder head and valve-train work.

Quality Assurance

Elring is a recognized engine sealing brand, and this 310.751 valve stem oil seal is specified with exact dimensional data for the listed Mercedes-Benz applications, including 1984-1993 Mercedes-Benz 190E and 1986-1993 Mercedes-Benz 300E coverage.