Wiseco 39 x 58 x 16mm Main Bearing - B5056

Wiseco main bearings are manufactured by many of the same suppliers to the OEMs, including leading Japanese manufacturers, and are inspected for accuracy, function, and cleanliness for efficient and...

Wiseco 39 x 60 x 16mm Main Bearing - B5054

Wiseco main bearings are manufactured by many of the same suppliers to the OEMs, including leading Japanese manufacturers, and are inspected for accuracy, function, and cleanliness for efficient and...

Wiseco 39 x 65 x 18mm Main Bearing - B5038

Wiseco main bearings are manufactured by many of the same suppliers to the OEMs, including leading Japanese manufacturers, and are inspected for accuracy, function, and cleanliness for efficient and...

Wiseco 39x58x16 & 30x72x16mm Main Bearing Kit - BK5030

Wiseco main bearings are manufactured by many of the same suppliers to the OEMs, including leading Japanese manufacturers, and are inspected for accuracy, function, and cleanliness for efficient and...

Wiseco 39x65x18 & 30x72x19mm Main Bearing Kit - BK5031

Wiseco main bearings are manufactured by many of the same suppliers to the OEMs, including leading Japanese manufacturers, and are inspected for accuracy, function, and cleanliness for efficient and...

Wiseco 39x65x18 30x76x19 Main Bearing Kit - BK5062

Wiseco main bearings are manufactured by many of the same suppliers to the OEMs, including leading Japanese manufacturers, and are inspected for accuracy, function, and cleanliness for efficient and...

Wiseco 4.000in Bore to 4.070in Bore Piston Ring Compressor Sleeve - RCK400407

Wiseco ring compressor sleeves are forged in-house in the USA and are a precision solution to assist in your high-performance engine build.

Wiseco 4.000inch x 1/16x1/16x3/16inch Set* Ring Shelf Stock - 4000R

Wiseco 4-stroke piston ring sets are made specifically to Wiseco's specifications to provide ultimate performance and sealing with Wiseco's wide variety of 4-stroke pistons. From compression and...

Wiseco 4.005in Bore Ring Compressor Sleeve - RCS40050

Wiseco ring compressor sleeves are forged in-house in the USA and are a precision solution to assist in your high-performance engine build.

Wiseco 4.005inch 1/16x1/16x3/16inch Single Cyl. Set Ring Shelf Stock - 4005H

Wiseco 4-stroke piston ring sets are made specifically to Wiseco's specifications to provide ultimate performance and sealing with Wiseco's wide variety of 4-stroke pistons. From compression and...

Wiseco 4.020in Bore Dia Black Anodized Piston Ring Compressor Sleeve - RCS40200

Wiseco ring compressor sleeves are forged in-house in the USA and are a precision solution to assist in your high-performance engine build.

Wiseco 4.030in Bore Dia Black Anodized Piston Ring Compressor Sleeve - RCS40300

Wiseco ring compressor sleeves are forged in-house in the USA and are a precision solution to assist in your high-performance engine build.