Hot Rods B139 Crank Pin Bearing 40x50x21.8mm KU Cage

The Hot Rods B139 Crank Pin Bearing is a high-quality aftermarket replacement crank pin bearing designed for powersports engine rebuilds. Measuring 40mm ID × 50mm OD × 21.8mm wide with a KU caged needle roller design, this bearing delivers precision fitment and durability at a significant cost savings over OEM.

Hot Rods works directly with their bearing manufacturer's engineering department to incorporate the latest caged needle roller bearing designs optimized for high-RPM applications. The result is a bearing that meets or exceeds OEM quality standards while offering a cost-effective alternative for both two-stroke and four-stroke engine builds.

Key Features:

• Dimensions: 40mm ID × 50mm OD × 21.8mm width
• Cage Type: KU caged needle roller bearing
• Compatible with Hot Rods and OEM crankshafts
• Built to meet or exceed OEM quality standards
• Designed for high-RPM powersports applications
• Cost-effective alternative to expensive OEM bearings

The Hot Rods B139 crank pin bearing is suitable for use during crankshaft rebuilds on ATVs, motorcycles, PWC, and snowmobiles. It pairs seamlessly with Hot Rods connecting rods and crankshafts, or can be used as a direct replacement on OEM cranks.