Please Note: These pumps have 1″ hollow shafts & bolt directly to the pressure washer. Although you can install a 5.6 gpm @ 4000 psi pump on a 13 Honda or 14 Kohler you will not have enough horsepower to produce those specs. With this set-up expect 5.6 gpm at approximately 2800 psi. For 5.6 & 4000 psi you will need at least 18 hp.

Note: These pump have 24 mm shafts & are typically used on belt drive pressure washers. If you gear drive them you will be producing more volume. Example: With the pump turning faster a 5.6 gpm pump @ 1450 rpm will produce around 6.0 gpm using a gear box on the same 3600 rpm engine running at 3400 rpm under load.

Please Note: These pumps have 24 mm shafts and are typically used on gear or belt drive pressure washers. The specifications below are based on using a gear drive, which are sold separately. If you  belt drive these pumps refer to our recommended pulley sizes for both 1450 and 1750 rpm pumps here…

Please Note: These Pumps are used on gear or belt drive pressure washers. They all have a 24 mm shaft and can be gear or belt driven. 1750 rpm pumps are best for gear drive units. For belt drive refer to our recommended pulley sizes here…