Kubota Replacement Blade
Replaces: 65621-37210
Fits Models: Kubota 4021, 5021, 6021, W521, W621, SW520, SW621 and WA021.
The Kubota Replacement Blade 65621-37210 is a replacement mower blade designed for compatible Kubota lawnmower and cutting deck applications. Manufactured to provide dependable cutting performance, this blade is ideal for replacing a worn, damaged or blunt original blade.
A sharp, correctly fitted mower blade helps maintain a clean and even cut while allowing your Kubota mower to perform efficiently. This replacement blade is suitable for servicing and maintaining compatible Kubota machines.
Blade Dimensions
- Overall length: 525 mm (20.7″ / approximately 21″)
- Blade width: 57 mm
- Blade thickness: 4.4 mm
- Centre bore: 25.5 mm
- Outer mounting holes: 14.5 mm diameter
- Outer hole centre-to-centre spacing: 90 mm
- Blade type: Super blower / high-lift style
- Rotation: Clockwise


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