Elring 353.311 Front Crankshaft Seal for Porsche - 911

The Elring 353.311 is a precision-engineered front main crankshaft seal designed for Porsche 911 and related high-performance models. This critical engine seal is located behind the crankshaft pulley and prevents oil leakage from the front of the engine, ensuring proper lubrication system integrity and preventing costly oil loss.

Key Specifications:

• Inner Diameter: 30mm
• Outer Diameter: 50mm
• Width/Height: 10mm
• OE-quality construction from ElringKlinger AG
• Precision-fit design for reliable sealing performance

Cross-Reference Numbers:

• Porsche OEM: 99911329043/1, 99911329041, 99911329042, 99911329040, 99911304950

Elring is a premium original equipment supplier to the global automotive industry, with over 140 years of expertise in sealing technology. As a division of ElringKlinger AG, Elring produces OE-quality replacement parts that meet or exceed factory specifications. This crankshaft seal features the precision engineering and durable materials expected from a world-class OE manufacturer, ensuring reliable performance and long service life.

Regular inspection and timely replacement of crankshaft seals is essential for maintaining engine health and preventing oil leaks that can lead to environmental damage, reduced oil pressure, and potential engine wear. Using genuine Elring parts ensures proper fitment and optimal sealing performance.