Wiseco 30x76x17.5mm Main Bearing Kit (2)

These Wiseco main bearings are precision machined to exact specifications, measuring 30mm inner diameter, 76mm outer diameter, and 17.5mm width. They are manufactured by the same suppliers that provide parts to original equipment manufacturers, including leading Japanese companies. This ensures that each bearing is held to a high standard for accuracy, function, and cleanliness, which is crucial for efficient and reliable engine operation.

When you're rebuilding or servicing the engine in your 1999-2008 Honda TRX400EX Sportrax, 2009-2014 TRX400X, or 1996-2004 XR400R, using well-made main bearings is essential for proper crankshaft support and smooth operation. Wiseco's commitment to quality means these bearings are inspected thoroughly before they leave the factory, giving you confidence in their performance and longevity.