EZJOB WS-PWPUMP-AL-HORIZONTAL Pressure Washer Pump, 3/4-Inch Shaft, 2,400–2,800 PSI

When a gas pressure washer loses cleaning pressure or develops a leak at the pump, replacing the pump can help restore the machine without replacing the entire washer. The EZJOB WS-PWPUMP-AL-HORIZONTAL is designed for compatible horizontal-shaft setups.

Its 3/4-inch shaft and 2,400–2,800 PSI rating make it a replacement option for outdoor cleaning tasks such as washing patios, driveways, fences, vehicles, and equipment.

The aluminum pump body and pre-filled oil design give the replacement a practical starting point for a repair, while the built-in thermal relief valve, chemical injector, and unloader support its pressure-washer setup.

Getting the most from it

This pump is intended for gas pressure washers with a horizontal-mounted pump and a 3/4-inch engine shaft. Before ordering, compare the washer’s shaft size, mounting pattern, inlet and outlet positions, and original pump specifications. Those details help establish whether the replacement will fit your particular machine, brand name alone does not determine compatibility.

For a compatible washer, the 2,400–2,800 PSI rating suits routine outdoor cleanup, from rinsing dirt off patio surfaces to washing outdoor equipment. The 3/4-inch threaded inlet and M22 outlet are useful points to match against the existing setup. The pump is also described as compatible with select models from brands including Simpson, DeWalt, Westinghouse, and Ryobi, among others.

What you’ll notice day to day

The main benefit is a pump-only repair path: if the rest of the pressure washer is still serviceable, replacing its worn pump lets you keep using the existing machine. That makes this a different approach from shopping for a complete new pressure washer, and can suit owners who want to address a pump problem directly.

The aluminum body keeps the replacement focused on the pump assembly, while its pre-filled oil design reduces setup steps related to adding pump oil. A thermal relief valve is included in the design, along with a chemical injector and unloader. Together, these features make the pump a purposeful replacement component for compatible gas-powered washers rather than a standalone cleaning tool.

Worth noting

Buyers often speak positively about fit and value, while feedback on pressure performance and service life is mixed. Treat compatibility as a model-specific check: confirm the physical fit and original pump requirements before choosing this replacement. It is intended for horizontal-shaft pressure washers, not every washer from a listed brand.

Does this pump fit any gas pressure washer? No. It is designed for compatible horizontal-shaft washers with a 3/4-inch shaft. Check the mounting pattern, port positions, and original pump specifications for your model.

What pressure range is it rated for? The pump is listed for 2,400–2,800 PSI. That range is suited to common exterior washing tasks such as patios, driveways, vehicles, fences, and outdoor equipment.

What features are part of the pump design? It has an aluminum pump body, pre-filled oil, a thermal relief valve, a chemical injector, and an unloader. It also uses a 3/4-inch threaded inlet and M22 outlet.

Is it worth it?

For an owner whose pressure washer has a worn pump but remains useful otherwise, the EZJOB replacement offers a focused way to repair the machine. Its horizontal 3/4-inch shaft design, stated pressure range, and pump features make it most relevant when those specifications match the existing washer. Confirm the fit, then choose it to keep a compatible gas pressure washer in service for everyday outdoor cleaning.