Himore Homelite pressure washer pump 2800 PSI 2.5 GPM vertical mount with thermal release valve

This is a genuine Homelite 308653052 vertical pressure-washer pump rated to 2800 PSI and about 2.3–2.5 GPM, complete with thermal release valve, chemical injector and unloader valve.

This replacement pump is built to the OEM Homelite specification for older and common pressure-washer models (old part # 308653045). It arrives as a complete assembly — pump body, outlet tube, chemical injector, unloader and thermal release — so you can swap it into compatible frames quickly. Before ordering, verify fit by checking shaft size, bolt pattern and inlet/outlet orientation against your machine.

How will this pump fit my pressure washer?

The pump mounts vertically and uses a 7/8" shaft with a three-bolt pattern. Rear-facing inlet/outlets exit toward the engine. Compare your unit’s bolt spacing and shaft length to ensure a correct fit; some engines require longer bolts and spacers (not included) to clear frames or compensate for different shaft depths.

• Bolt pattern: 7 11/16" x 6 3/16" x 6 7/16", 4" center to each outer hole
• Shaft: 7/8" diameter (keyed)
• Mounting: vertical, rear-facing inlet/outlets
• Note: may need 5/16"-18 bolts (common lengths suggested in listing)

What performance and safety ratings does this pump have?

Designed for light-to-medium duty cleaning, the pump delivers up to 2800 PSI and roughly 2.3–2.5 GPM, with a recommended maximum pump speed near 3400 RPM. It includes a thermal release valve to help protect the unit from overheating when water flow is restricted, and an unloader for pressure regulation. Never exceed rated PSI; operating beyond limits risks damage and safety hazards.

• Maximum pressure: 2800 PSI
• Maximum flow: ~2.3–2.5 GPM
• Max pump speed: 3400 RPM; max water temp: 140°F
• Safety features: thermal release valve and unloader valve

What connections and accessories are included?

This product ships as a ready-to-install pump assembly with the outlet tube, chemical injector and hose/keyway shown in the primary image. The inlet accepts a standard garden-hose connection and the outlet uses a 22mm male tube connection. Additional installation hardware such as longer mounting bolts or spacers are not supplied, but are often needed depending on engine configuration.

• Included: pump, chemical injector, outlet tube, unloader, thermal release, hose & keyway
• Inlet: standard garden-hose type
• Outlet: 22mm male tube connection
• Not included: extra bolts or spacers—purchase locally if needed

Can this pump work with my engine size and cleaning needs?

To operate properly the pump typically needs an engine of at least ~5.5 HP depending on setup. It’s well suited to household and light-commercial tasks like decks, siding, driveways and vehicles where 2800 PSI and ~2.3 GPM give effective cleaning without excessive surface damage. The flip-capable pump head adds mounting flexibility.

• Recommended engine: 5.5 HP minimum in many configurations
• Applications: residential and light-commercial cleaning
• Pump head: reversible for different mounting needs
• Warning: do not exceed maximum PSI rating

Who is this for: This Homelite OEM pump suits DIY mechanics, repair shops and owners restoring older or common-model pressure washers who need a direct-fit, factory-spec replacement with thermal protection and chemical-injector capability. If you’re unsure about compatibility, supply your model/submodel, engine specs and serial codes to confirm before purchase — our specialists can help verify fitment.