Gear Reduction Kit 8000-0056
6:1 gear box for standard 5.5 hp gas engine with 3/4" shaft. Fits pump models 910-D30, 9910-D303 and 9910-D403.
Gear Reduction Kit 9910-KIT1640
6:1 gear box for standard 5.5 hp gas engine with 3/4" shaft. Fits pump models 910-D30, 9910-D303 and 9910-D403. This kit can also be used with 9910-D50, 9910-D503 and 9910-D813, providing that pumps are operated at lower pressures that do not exceed 5.5 hp gas engine capability.
Gear Reduction Kit 9910-KIT1642
6:1 gear box for standard 8 to 18 hp gas engine with 1" shaft. Fits pump models 910-D50, 9910-D503, 9910-D813, 9910-D1064 and 9910-D1265.