BUSHING - DU (Komatsu KO4399928)

A worn bushing can cause excessive play in a pivot point, leading to accelerated component wear. This aftermarket replacement part references the Komatsu catalog number KO4399928. The bushing serves as a DU-type plain bearing, reducing friction between two moving surfaces. Its primary mechanical function is to support radial loads while allowing rotational or sliding motion. Without a properly functioning bushing, misalignment and metal-to-metal contact can occur, resulting in noise and eventual failure. The item ships at approximately 0.116 pounds. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO4399928, ko4399928