URO 11117547842 Engine Crankshaft Seal - Front

Overview of URO Engine Crankshaft Seal 11117547842

The URO engine crankshaft seal 11117547842 is designed for precise fitment on various BMW models, including the 1 Series M, 328i, 535i GT, and X5. Constructed with durable AEM/PTFE/LA-C steel/PP materials, this seal ensures reliable engine performance by maintaining a secure seal around the crankshaft.

• Material composition: AEM/PTFE/LA-C steel/PP for enhanced durability
• Inner diameter: 75.5 mm for exact fit
• Outer diameter: 79.3 mm ensuring proper sealing
• Thickness: 19.2 mm for optimal sealing pressure
• Compatible with multiple BMW models including 325i, 330xi, and Z4

Technical Details and Material Benefits

This engine crankshaft seal features a multi-material construction combining AEM (a synthetic rubber), PTFE (polytetrafluoroethylene), LA-C steel, and polypropylene (PP). The AEM and PTFE layers provide excellent resistance to heat, oil, and wear, while the LA-C steel core offers structural strength. The PP component adds flexibility and chemical resistance. With an inner diameter of 75.5 mm and an outer diameter of 79.3 mm, the seal fits precisely around the crankshaft, maintaining engine integrity and preventing oil leaks. The 19.2 mm thickness balances durability with effective sealing pressure.

Compatible BMW Models and Applications

This URO crankshaft seal 11117547842 is compatible with a wide range of BMW vehicles, including but not limited to:

• BMW 1 Series M, 128i, 135i
• BMW 3 Series models such as 325i, 328i, 330i, 335i, including xDrive variants
• BMW 5 Series models including 525i, 528i, 530i, 535i, and 535i GT
• BMW 7 Series 740i and 740Li
• BMW SUVs like X3, X5, X6 and roadster Z4

Common Issues Addressed by This Crankshaft Seal

• Prevents oil leaks around the crankshaft area
• Reduces risk of engine contamination from external debris
• Maintains proper oil pressure within the engine
• Helps avoid premature engine wear due to oil loss
• Ensures smooth engine operation by preserving seal integrity

Installation Notes and Tips

When installing the URO engine crankshaft seal 11117547842, ensure the crankshaft surface is clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the seal orientation matches OEM specifications to maintain proper sealing. It is recommended to inspect related components such as the crankshaft and housing for wear or damage before installation.

Quality Assurance and Warranty

URO parts are manufactured to meet or exceed OEM standards, using high-quality materials for durability and performance. While specific warranty details for part number 11117547842 are not provided, URO typically offers coverage against manufacturing defects. For best results, use this crankshaft seal as a direct replacement on compatible BMW models to ensure engine reliability.