KOYO crankshaft bearings are manufactured to precise OEM criteria using the highest quality materials. These bearings ensure a perfect fit with both OEM and aftermarket crankshafts. Designed for optimal performance and durability, KOYO crankshaft bearings offer reliable and long-lasting support for Yamaha engines. Installation is straightforward, making them an excellent choice for both professional mechanics and DIY enthusiasts. Whether you are repairing or upgrading your vehicle, these bearings will help to maintain smooth engine operation and extend the overall lifespan of your crankshaft.