Fel-Pro BS 40753 Rear Main Crankshaft Seal Kit

The Fel-Pro BS 40753 Rear Main Crankshaft Seal Kit is an application-specific sealing solution designed to prevent oil leaks at the rear of the crankshaft. This seal kit is engineered specifically for select Infiniti models including the FX45, FX50, M45, and Q45, ensuring precise fitment that meets or exceeds original equipment specifications.

Fel-Pro rear main seal kits feature advanced materials and construction designed to deliver reliable, leak-free performance in the demanding rear crankshaft environment. Each seal is manufactured with proprietary materials specifically chosen for the repair environment, ensuring durability even on imperfect sealing surfaces. The kit includes all necessary sealing components to complete your rear main seal replacement job.

Rear main bearing seals are critical components that prevent engine oil from leaking where the crankshaft exits the engine block. A failing rear main seal can cause oil leaks, reduced oil levels, and in vehicles with manual transmissions, oil contamination of the clutch assembly leading to slipping and performance issues.

Fel-Pro is the leading brand of replacement sealing products, trusted by professional technicians and DIY mechanics for innovative sealing solutions that address real-world repair challenges. Each seal is designed with application-specific features to ensure optimal sealing performance and long service life.