Elring 374.680 Seal Ring

Elring 374.680 Seal Ring

The Elring 374.680 Seal Ring is a high‑performance crankshaft oil seal designed to provide reliable sealing under demanding operating conditions. It is engineered for use in a wide range of automotive engines, ensuring that engine oil remains contained while preventing contaminants from entering the crankcase.

Key Features and Design Characteristics

• Material Composition: The seal ring combines PTFE (polytetrafluoroethylene) with ACM (polyacrylate rubber). This hybrid material offers excellent chemical resistance, low friction, and high temperature tolerance.
• Dimensions: Standard size of 35 mm × 50 mm × 7 mm, making it compatible with many OEM crankshaft designs.
• Sealing Surface: The inner lip is precision‑machined to provide a tight seal against the crankshaft journal, while the outer lip accommodates the engine housing.
• Durability: Designed for extended service life, it resists wear from oil flow and high rotational speeds.
• Installation Compatibility: Fits seamlessly into existing crankshaft housings without requiring modifications, thanks to its standardized geometry.

Applications Across Vehicle Brands

The Elring 374.680 Seal Ring is widely adopted by major automotive manufacturers. Its versatility allows it to be used in engines from:

• Ford – including Focus, Mondeo, and Transit models.
• Peugeot – suitable for 407, 607, and other line‑ups.
• Citroën – fits C5, C6, and DS series engines.
• Land Rover – compatible with Discovery, Range Rover Sport, and other models.
• Jaguar, Mazda, Volkswagen, Audi, and Seat engines also benefit from this seal ring’s performance.

Performance Benefits

When installed correctly, the Elring 374.680 Seal Ring delivers:

• Consistent Oil Retention: Prevents oil leakage even under high pressure and temperature variations.
• Reduced Contamination: Keeps dirt, water, and other foreign particles out of the crankcase.
• Lower Noise Levels: The PTFE component reduces friction noise during operation.
Extended Engine Life: By maintaining optimal oil levels and preventing contamination, it contributes to overall engine longevity.

Installation Guidelines

1. Preparation: Clean the crankshaft journal and housing thoroughly. Remove any old seal material or debris.
2. Alignment: Position the seal ring so that its inner lip aligns with the crankshaft journal, ensuring even contact on all sides.
3. Seating: Gently press the seal into place using a suitable tool. Avoid excessive force that could distort the ring.
4. Verification: Inspect the installation for proper seating and absence of gaps or misalignments.

Maintenance Tips

Although the Elring 374.680 Seal Ring is designed for durability, regular maintenance can further extend its life:

• Check for oil leaks during routine inspections and replace if necessary.
• Avoid using harsh cleaning chemicals that could degrade PTFE or ACM components.
• Ensure the engine operates within manufacturer‑specified temperature ranges to prevent premature wear.

Technical Specifications Summary

Conclusion

The Elring 374.680 Seal Ring stands out as a reliable, high‑quality component for crankshaft sealing across a broad spectrum of automotive engines. Its advanced material blend, precise engineering, and proven compatibility with major vehicle manufacturers make it an essential part for maintaining engine integrity and performance.