125-21-23121 Disc Fits Komatsu Models
125-21-23121 Disc Fits Komatsu Models
Couldn't load pickup availability
One New Aftermarket Replacement Friction Disc for Komatsu Crawler Dozers
This aftermarket replacement friction disc (part number 125-21-23121) is a steering clutch component used in Komatsu crawler dozers and bulldozers. The friction disc engages and disengages the steering clutch assembly, allowing directional control of the machine. It is a critical drivetrain wear part and should be inspected and replaced as part of any steering clutch rebuild.
Specifications
- Inner Diameter: 290 mm
- Outer Diameter: 365 mm
- Thickness: 4.1 mm
- Weight: 1.1 kg (approx. 2.4 lbs)
- Type: Friction Disc (Steering Clutch)
Compatible Models
Komatsu Crawler Dozers / Bulldozers: D40A, D40PL, D45A, D45P, D45S, D50A, D50P, D50PL, D53A, D53P, D53S, D57S, D58E, D58P, D75S
Note: The D57S-1B application applies to serial numbers 20001 and up (S6D108-1 engine installed). Verify compatibility with your machine's serial number before ordering.
Replaces Part Number(s):
125-21-23121
New aftermarket replacement part - not remanufactured, not used.
