Hot Rods Wrist Pin Bearing for Gas Gas, Husqvarna and KTM (WB139)

The HOT RODS WB139 Wrist Pin Bearing is an OEM replacement component designed for compatible Gas Gas, Husqvarna and KTM engines. It supports reliable wrist pin operation and is suitable for high-performance applications where consistent bearing function and durability are important. This bearing is identified by its 14 mm inside diameter, 18 mm outside diameter, and 16.7 mm width, providing a precise fit for the specified engine configurations.
The WB139 features a case-hardened bearing cage engineered to withstand the demands of high-rpm operation. Its flat, KU-style bearing cage profile helps provide dependable support within the connecting rod assembly, while the long-shouldered KZ-style cage design is used where additional suitability for elevated engine speeds is required. These design characteristics make it a practical replacement for worn or damaged wrist pin bearings.
Install the HOT RODS WB139 according to the engine manufacturer’s service procedures and verify application compatibility before installation. Replacing the bearing as part of proper engine maintenance can help restore smooth wrist pin movement and support dependable performance. The compact bearing weighs approximately 0.8 lb and is intended for use in select Gas Gas, Husqvarna and KTM applications.

Features:

• OEM replacement wrist pin bearing for select Gas Gas, Husqvarna and KTM engines

• Case-hardened bearing cage for dependable durability in demanding applications

• Flat KU-style bearing cage profile designed for reliable wrist pin support

• Long-shouldered KZ-style bearing cage suited to high-rpm applications

• 14 mm inside diameter, 18 mm outside diameter, and 16.7 mm width

Ships from Parts Unlimited.