Athena NTN Main Bearings & Seals

High-quality main bearing and seals from Athena. Complete kit includes the bearings and seals needed for a change.

Athena is a leading manufacturer of engine parts for motorcycle and motocross bikes, and produces OEM parts for various makes. Athena parts meet and often exceed OEM specifications.

Main bearings are mounted in the engine block, and hold the crankshaft in place; upon overhauling the engine, the main bearing must always be switched out.