ATVWorks FD620/FD661 Rebuild Kit – 2 Pistons
AUD 310.28 on Amazon.com.au (as of October 22, 2026) View details ↗
The ATVWorks KCR5 engine rebuild kit is designed for Kawasaki Mule 2500, 2510, 2520, 3000, 3010, 3020, 4000, and 4010 models (KAF620 engine) as well as John Deere 425, 445, F911, and 6x4 Gator GX345 utility vehicles. This comprehensive kit includes all essential components for a full rebuild, such as head gaskets, crankcase seals, valve stems, rocker case gaskets, intake and exhaust gaskets, a water pump case gasket, two standard pistons, piston rings, wrist pins, and circle clips.
Ideal for maintenance tasks, this kit ensures compatibility with gasoline V-Twin engines in the specified models, providing a reliable solution for restoring engine performance. The kit is sourced from ATVWorks, a trusted brand in off-road equipment parts, and is designed to meet the exacting standards of utility vehicle owners.
| Compatibility | Kawasaki Mule 2500, 2510, 2520, 3000, 3010, 3020, 4000, 4010 (KAF620 engine) & J |
|---|---|
| Pistons included | 2 × Standard size (13001-2210) |
| Piston rings included | 2 × (13008-6025) |
| Oil seals included | 2 × Crankshaft oil seals (92049-2112) |
| Water pump components | 1 × Water pump case gasket (11060-2450) & 1 × Water pump cover gasket (11060-245 |
| Engine type | Gasoline V-Twin |



