Elring 735250 Rear Crankshaft Seal

The Elring 735250 crankshaft seal is engineered to OEM standards, providing a precision replacement solution for rear main seal applications. This critical engine component prevents oil leaks while allowing the crankshaft to rotate freely within the crankcase.

Key Specifications:

• Inner diameter: 100mm (3.94 inches)
• Outer diameter: 125mm (4.92 inches)
• Height: 12mm (0.47 inches)
• Material: FPM (fluoride rubber) for superior heat and chemical resistance
• Features dust lip design for enhanced protection
• Left-hand twist swirl type

Features & Benefits:

• Engineered to withstand extreme pressures and temperatures typical of engine operation
• Precision engineering guarantees a perfect fit
• Prevents engine oil leaks and keeps contaminants out of the crankcase
• OEM-quality construction from a trusted European manufacturer
• Direct replacement for BMW OEM part number 11217838071

Crankshaft seals typically last over 200,000 miles or 20 years but should be replaced during engine rebuilds or when oil leakage is detected. Installation requires specific tools to ensure proper seating, making this a recommended task for experienced technicians.