VEVOR KXA1810G pressure washer replacement pump: specs and fit

The VEVOR KXA1810G is a replacement pump for gas-powered pressure washers with a horizontal shaft. When the pump on an otherwise working washer wears out, fitting a new one can bring the machine back into use, as long as the new pump matches the engine's shaft and mounting. VEVOR rates this one at 2500-3400 PSI with a maximum flow of 2.5 GPM.

What PSI and GPM mean for a pump

PSI is the water pressure at the nozzle, and GPM is the volume of water moving each minute. Pressure does the loosening of dirt, and flow helps rinse it away. VEVOR describes the pump as suited to everyday jobs such as walls, fences, sidewalks and vehicles. The pump only delivers its listed figures if the engine driving it, the hose and the nozzle suit those figures, so the numbers are a ceiling for the whole system, not just this part.

Shaft size and bolt pattern

This is the most important part of the fit. The pump has a 3/4-inch horizontal shaft and a standard SAE bolt pattern, which VEVOR says suits most rear-outlet pressure washers with 196-230cc engines. The listing names brands including Honda, Briggs & Stratton, Subaru, RYOBI, Craftsman, Simpson, PowerStroke and Homelite as compatible. Because brands vary by model year, check your engine's shaft diameter and mounting holes against the pump rather than relying on the brand name alone.

Seals and the pump head

VEVOR says it has increased the hardness of the plungers to improve wear resistance and extend the life of the water and oil seals. The pump head is a single piece, which the brand says seals better, and a metal shaft sleeve is meant to prevent oil leaking along the shaft. Water and oil seals are among the parts that wear first in any pressure washer pump, so this is a sensible area to look at.

Maintenance and starting

The crankcase is described as maintenance-free, so there is no oil to change in the pump. VEVOR also says it starts easily when cold and that pressure doesn't need to be released before starting the engine. Always follow the manual for your pressure washer on starting, running with water and storing the machine, including protection against freezing.

What's in the box

According to the listing, the kit includes:

• 1 nozzle needle
• 1 siphon tube, 3.3 ft long
• 1 mounting hardware set
• 2 shaft keys
• 4 spring washers, 8 mm
• 4 hexagon bolts, M8 x 25 mm

The pump measures 8.3 x 7.1 x 7.1 inches and weighs 6.9 lb (about 3.1 kg).

Who it suits

It suits owners of a rear-outlet, horizontal-shaft pressure washer in the 196-230cc range whose pump has failed or lost pressure, and who are comfortable with basic mechanical work: removing the old pump, fitting the new one with the key and bolts, and connecting hoses. Anyone unsure should consider asking a small-engine repairer.

What to check before you buy

• Shaft: measure your engine's shaft diameter (3/4 inch here) and check the key slot.
• Bolt pattern and outlet: confirm a matching SAE pattern and rear outlet layout.
• Engine size and pressure: make sure your engine, hose, gun and nozzle suit 2500-3400 PSI and 2.5 GPM.
• Fittings: check the inlet and outlet thread types against your hoses, and whether you need extra adapters.
• Why the old pump failed: a worn engine or blocked inlet can damage a new pump too.
• Instructions: the kit lists parts, but you may need to find installation guidance for your machine.

The short version

• A replacement horizontal-shaft pump for pressure washers, rated 2500-3400 PSI and 2.5 GPM.
• 3/4-inch shaft and SAE bolt pattern, for rear-outlet 196-230cc washers.
• Hardened plungers, one-piece pump head and metal shaft sleeve to resist wear and leaks.
• Maintenance-free crankcase; kit includes siphon tube, nozzle needle and mounting hardware.
• Confirm shaft, bolt pattern and fittings before ordering.

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