Stud - Crankshaft Rear Main Seal Retainer

The Chevrolet Performance Stud - Crankshaft Rear Main Seal Retainer (MPN 14101058) is a precision fastening component designed for engine builders and performance mechanics. It is specifically engineered for use in Chevrolet small-block engines (262–400 cu in), ensuring a secure fit for the rear main seal retainer to the engine block.

This stud plays a critical role in preventing oil leakage at the crankshaft's rear journal, which is subject to significant pressure from rotating assembly forces. Manufactured to OEM specifications, it provides reliable clamping force and maintains precise thread engagement, which is essential for effective seal retention. Its compact design and minimal weight reflect its focused purpose in engine assembly.

Professional engine builders, restoration shops, and DIY enthusiasts rely on this stud for its ability to eliminate guesswork and ensure a leak-free bottom end. By using factory studs instead of standard bolts, users can reduce the risk of flex and vibration at this critical sealing interface, which is especially important during high-rpm operation.