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Corteco Crankshaft Oil Seal - 45x72x8mm - 12011169B

Corteco Crankshaft Oil Seal - 45x72x8mm - 12011169B

The Corteco 45x72x8mm crankshaft oil seal is an essential component designed to ensure the optimal...

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eBayFits CORTECO 12011169B SEAL RING ⭐UK Stock⭐
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Product Information

Full details

The Corteco 45x72x8mm crankshaft oil seal (MPN: 12011169B) is a critical component for motorcycle owners and mechanics looking to maintain engine integrity by preventing oil leaks and internal friction. Engineered for precise fitment in the lubrication system, this seal acts as a robust barrier against contaminants that could otherwise compromise engine performance. While it is built for long-term durability under demanding conditions, correct installation is vital, as improper seating can lead to premature failure or persistent leaks.

All features

Model Part Number12011169B
BrandCorteco

Extended Product Information

FAQs

How do I know if this seal fits my motorcycle?

Verify that your current seal dimensions are exactly 45mm (ID) x 72mm (OD) x 8mm (Width) and that your service manual lists the MPN 12011169B as a compatible replacement.

Do I need to apply sealant to the outer edge of the seal?

Generally, high-quality seals like those from Corteco are designed for a press-fit. Consult your specific motorcycle's service manual regarding the use of sealant.

Can I reuse the old oil seal if it looks fine?

It is highly recommended to always replace oil seals with a new one during any engine tear-down, as the rubber edges lose elasticity over time.

What is the primary function of this part?

The seal maintains internal oil pressure and prevents oil leakage while simultaneously keeping dirt and water out of the crankcase.

What tools are recommended for installation?

A seal driver set is recommended to ensure the seal enters the housing squarely without distortion.

Troubleshooting

Oil continues to leak after installation

Verify that the seal was not nicked during installation and that the crankshaft surface itself is not scored or grooved.

Seal is difficult to press into the housing

Ensure the housing is clean of old adhesive or debris, and use a dedicated seal driver to apply uniform pressure around the perimeter.

Pros and Cons

Pros

  • Ensures a tight, leak-proof seal for the crankshaft
  • Protects internal engine components from abrasive debris
  • Helps maintain proper lubrication system pressure
  • Durable construction designed for high-stress motorcycle environments

Cons

  • Requires professional-grade tools for proper installation
  • Failure to seat perfectly during installation can cause leaks
  • Not a universal part; strictly limited to 45x72x8mm specifications

Setup, Compatibility & Care

Before installation, ensure that the crankshaft surface is clean, free of burrs, and lightly lubricated with fresh engine oil. Use a suitable seal driver of the correct diameter to press the seal into the engine housing evenly. Avoid using sharp tools that could nick the rubber edge of the seal during the process. Compatibility is determined strictly by the 45x72x8mm measurement; always measure your existing seal or consult your motorcycle's service manual to confirm this specific part number (12011169B) matches your engine requirements. Regular inspection during routine oil changes can help identify signs of sweating or leakage early.

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