Elring 509.930 Seal Ring

Elring 509.930 Seal Ring – Precision Engineered Crankshaft Protection

The Elring 509.930 Seal Ring is a high‑performance, OEM‑grade component designed to safeguard the crankshaft of modern internal combustion engines. Crafted from advanced fluorinated rubber (FPM) and polyacrylate (ACM), this seal ring delivers exceptional resistance to oil, fuel, and temperature extremes while maintaining a tight fit within the transmission end.

Key Functional Attributes

• Material Excellence: The combination of FPM and ACM provides superior chemical stability against oils, fuels, and lubricants, ensuring long‑term durability even under high pressure.
• Thermal Resilience: Capable of operating across a wide temperature range, the seal ring maintains its elasticity from -40 °C to +120 °C, preventing leaks during both cold starts and hot running conditions.
• Precision Fit: Designed with exacting tolerances, it mates seamlessly with crankshaft housings on a variety of European brands such as Citroën, Peugeot, Renault, Fiat, Lancia, and DAF. The ring’s profile matches the OEM specifications for each model, guaranteeing optimal sealing performance.
• Corrosion Resistance: The fluorinated rubber matrix resists oxidation and degradation caused by engine oils and additives, extending service life beyond typical aftermarket alternatives.

Applications Across Vehicle Platforms

The Elring 509.930 Seal Ring is engineered for a broad spectrum of vehicles, including but not limited to:

• CITROËN: C5, C6, C8, XANTIA, XM, DS, JUMPER, and various engine variants.
• PEUGEOT: 406, 407, 605, 607, 807, BOXER, and other models with similar crankshaft geometry.
• RENAULT: CLIO II, LAGUNA I/II, AVANTIME, ESPACE III, and the iconic BOXER platform.
• FIAT & LANCIA: ULYSSE, PHEDRA, and other models sharing the same crankshaft design.

In each application, the seal ring serves as a critical barrier between the engine’s oil system and the transmission end, preventing oil seepage that could compromise lubrication and lead to component wear.

Installation Guidelines

1. Preparation: Clean the crankshaft housing thoroughly. Remove any debris or old seal material with a soft brush or compressed air.
2. Inspection: Verify that the housing and crankshaft are free from cracks, dents, or excessive wear. Replace if necessary before installing the new seal ring.
3. Alignment: Position the Elring 509.930 Seal Ring onto the crankshaft with care, ensuring the inner groove aligns perfectly with the housing’s mating surface.
4. Securing: Use a torque wrench to tighten the crankshaft bolts to the manufacturer’s specified torque sequence and values. This step ensures even pressure distribution across the seal ring.
5. Verification: After installation, perform a leak test by running the engine at low RPMs while monitoring for oil seepage around the transmission end.

Maintenance & Longevity Tips

• Regularly inspect the seal ring during routine maintenance intervals. Look for signs of wear such as cracking, hardening, or deformation.
• Avoid using incompatible oils or additives that may degrade FPM/ACM materials.
• Keep the engine’s oil level within recommended limits to reduce pressure on the seal ring.

Why Choose Elring?

The Elring 509.930 Seal Ring is synonymous with reliability and performance in the automotive industry. Its meticulous engineering, coupled with rigorous quality control, ensures that each component meets or exceeds OEM standards. By selecting this seal ring, vehicle owners can trust that their crankshaft remains protected against oil leaks, preserving engine longevity and maintaining optimal drivetrain efficiency.

Conclusion

In the realm of engine protection, the Elring 509.930 Seal Ring stands out as a benchmark for quality and durability. Whether you’re servicing a Citroën C5, a Peugeot BOXER, or any other vehicle within its compatibility range, this seal ring delivers uncompromised sealing performance, safeguarding your engine’s heart against the rigors of daily operation.