The REAR CRANKSHAFT SEAL with the part number HCB156-6973 is a critical component within an internal combustion engine. This type of seal is designed to be located at the rear of the engine’s crankshaft to prevent oil leakage from the crankshaft and into the transmission or flywheel area. The specific part number, HCB156-6973, serves as a unique identifier, allowing individuals and mechanics to identify and order the correct rear crankshaft seal for a particular engine or vehicle model. Each part number corresponds to specific sizing and design of the seal, ensuring a precise fit and effective sealing. Properly functioning rear crankshaft seals, such as the one designated by HCB156-6973, are essential for preventing oil leaks and maintaining the engine’s performance and reliability. Leaking oil from the rear of the crankshaft can lead to various issues, including loss of lubrication and contamination of other engine components, making the selection of the right rear crankshaft seal crucial for engine health.

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