Hot Rods Wrist Pin Bearing (12x15x14.8mm) WB143 - GasGas / Husqvarna / KTM 50cc 2004-2025

Product Description

When rebuilding a high-performance two-stroke engine, replacing the small end bearing is essential to maintain proper piston alignment and reliability. The Hot Rods Wrist Pin Bearing delivers precision aftermarket quality designed to handle the rigorous demands of high-rpm off-road riding.

Manufactured with strict dimensional tolerances featuring a 12 mm inside diameter, 15 mm outside diameter, and 14.8 mm length, this bearing incorporates case-hardened cages and specialized flat or long-shouldered profiles optimized for durability under extreme engine speeds.

Top Features: Hot Rods Wrist Pin Bearing

• Engineered as a direct OEM replacement wrist pin bearing for precision fit.
• Features case-hardened bearing cages for exceptional wear resistance.
• Utilizes specialized flat (KU style) or long-shouldered (KZ style) bearing cage profiles.
• Optimized specifically for high-rpm two-stroke engine applications.

Please review the detailed compatibility data below to ensure an exact fitment match for your dirt bike before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: What are the exact dimensions of this wrist pin bearing?
A: This bearing features a 12 mm inside diameter, 15 mm outside diameter, and a 14.8 mm length.

Q: Is this bearing designed for high-rpm engines?
A: Yes, it utilizes case-hardened cages and specialized flat or long-shouldered profiles built specifically to handle high-rpm two-stroke operating conditions.

Expert Pro-Tip: Always lubricate the wrist pin bearing with fresh two-stroke pre-mix oil prior to assembly, and check the connecting rod small end bore for wear or discoloration whenever installing a new top end.

Recommended Pairings:

• Piston / Top-End Kits
• KTM 50 SX Performance Upgrades
• Engine Rebuild Kits

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