ELRING 310.751 Seals

Product Overview

The ELRING 310.751 Seals are precision-engineered valve stem seals designed for high-performance automotive applications. These seals provide reliable sealing between the valve stem and the cylinder head, preventing oil leakage while withstanding extreme temperatures, pressures, and chemical exposure.

Key Features

• Material Excellence: Made from premium Fluorinated Ethylene Propylene (FPM), also known as Viton® or similar fluoropolymer blends. This material offers exceptional resistance to oils, fuels, and high temperatures up to 250 °C.
• Exact Fitment: The 310.751 designation corresponds to a specific valve stem diameter of approximately 17.5 mm, ensuring a snug fit on compatible Mercedes-Benz, Puch, and other OEM engines.
• Durability: Designed for long service life even under aggressive combustion environments, reducing the need for frequent replacements.
• Sealing Performance: The seal’s geometry provides a tight barrier against oil seepage while allowing smooth valve stem movement.

Applications and Compatibility

The ELRING 310.751 Seals are widely used in various vehicle models, particularly within the Mercedes-Benz and Puch families. Commonly found on:

• MERCEDES‑BENZ series such as W124, W123, W201 (190), E‑Klasse, S‑Klasse, SL, G‑Klasse, and more.
• Puch models including the 190, 230 GE, and other engines with a 17.5 mm valve stem.
• Other OEMs that specify the 310.751 part number for their valve stem sealing solutions.

Installation Guidelines

1. Preparation: Clean the valve stem and cylinder head thoroughly to remove old seal material, oil residues, and debris.
2. Inspection: Verify that the valve stem diameter matches the 17.5 mm specification and that there is no damage or wear on the stem.
3. Seal Placement: Gently slide the ELRING 310.751 seal onto the valve stem, ensuring it sits flush against the head without twisting.
4. Reassembly: Reinstall the valve and cylinder head, tightening to manufacturer torque specifications.
5. Testing: After engine start-up, check for oil leaks around the valve stem area. A properly installed seal should show no leakage.

Maintenance Tips

• Regularly inspect the valve stems during routine maintenance to detect early wear or damage.
• Avoid using harsh solvents that could degrade FPM; mild detergents are acceptable for cleaning.
• If a seal shows signs of cracking, discoloration, or oil seepage, replace it immediately to prevent engine damage.

Performance Benefits

By employing the ELRING 310.751 Seals, vehicle owners can expect:

• Reduced Oil Consumption: A tight seal minimizes oil loss through the valve stem path.
• Improved Engine Longevity: Protects internal components from oil contamination and corrosion.
• Consistent Power Delivery: Maintains optimal compression by preventing leakage of combustion gases.

Technical Specifications

Why Choose ELRING 310.751?

The combination of high-grade FPM material, precise dimensional control, and proven performance in demanding automotive environments makes the ELRING 310.751 Seals a trusted choice for mechanics and enthusiasts alike. Their ability to maintain seal integrity under extreme conditions ensures that engines run smoothly, efficiently, and with minimal maintenance interruptions.

Conclusion

The ELRING 310.751 Seals represent a pinnacle of sealing technology tailored for the automotive sector’s most demanding applications. Their robust construction, compatibility across a wide range of vehicle models, and exceptional resistance to oil, fuel, and temperature extremes make them indispensable for maintaining engine health and performance.