# EZJOB Triplex Pressure Washer Pump, 1-Inch Horizontal Shaft, Adjustable Unloader

A 1-inch horizontal-shaft triplex pump for compatible gas-powered pressure washers used on equipment, outdoor surfaces, and work areas.

- [Original product page](https://www.ofertitastop.com/us/product/ezjob-triplex-pressure-washer-pump-inch)
- [View offer](https://www.ofertitastop.com/us/visit/ezjob-triplex-pressure-washer-pump-inch)
- Market: US
- Language: en-US
- Currency: USD
- Product updated: 2026-10-31T00:04:47.781Z
- Brand: EZJOB
- SKU: ofertitastop-us-165156
- Category: Hardware > Hardware Pumps
- Source store: amazon US
- Active deal: Yes
- Price: 166.88 USD
- Previous price: 189.99 USD
- Discount: 12%
- Rating: 4.2 / 5
- Reviews: 14

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

The 1-inch horizontal shaft and adjustable unloader make this EZJOB triplex pump a practical replacement for compatible gas-powered pressure washers. Its design lets you replace the pump while keeping the rest of a suitable machine in service, with shaft and mounting compatibility guiding the fit.

A built-in oil sight glass makes it easy to check the oil level and clarity during routine maintenance. The pump comes prefilled with SAE 20W-50 oil.

## Fit and sizing
This pump is designed for pressure washer setups with a 1-inch horizontal shaft. It is intended for compatible gas engines in the 270–460cc, 8–15 HP range, and the mounting pattern must also match. Listed applications include Honda GX270, GX340, and GX390 engines, as well as compatible systems from brands such as Briggs & Stratton and Simpson. Before choosing it, match the shaft size, engine specifications, mounting pattern, and pump requirements to your washer.

That fit-first approach is useful when the washer’s engine and frame are still suitable and you want to replace the pump rather than the whole machine. For a different setup, selecting a complete pressure washer may be the more relevant route.

## What you’ll notice day to day
The triplex plunger and crankshaft design is made for demanding cleaning applications, while the adjustable unloader lets you adjust the pump’s pressure setting for the task. This combination is suited to work such as cleaning large outdoor surfaces, equipment, farm areas, or workshop spaces where stubborn dirt and buildup are part of the job.

Routine oil checks are straightforward: use the sight glass to view the level and condition without relying on a dipstick. The oil is prefilled, and the manufacturer recommends changing it approximately every 50–60 hours for best performance. This gives owners a clear maintenance interval to plan around regular use.

## Product specs
- Type: Triplex plunger pressure washer replacement pump
- Shaft: 1-inch horizontal shaft
- Unloader: Adjustable
- Power source: Gas-powered pressure washer applications
- Compatible engine range: 270–460cc, 8–15 HP
- Oil: Prefilled SAE 20W-50, built-in oil sight glass
- Weight: 9.21 kg
- Color: Black

## When it makes sense
This EZJOB pump suits owners, contractors, farms, and workshops looking to restore a compatible pressure washer by replacing its pump. It is especially relevant when the existing machine has a matching horizontal shaft and mounting pattern, and the engine falls within the stated range. Checking those fit points helps focus the purchase on a replacement that matches the equipment you already have.

You’ll appreciate it if you need a triplex pump for a gas-powered washer used in regular, demanding outdoor or worksite cleaning. The 1-inch shaft, adjustable unloader, and accessible oil sight glass bring together the key fit and maintenance details for a practical pump replacement.

## Images

![EZJOB Triplex Pressure Washer Pump, 1-Inch Horizontal Shaft, Adjustable Unloader — 1](https://www.ofertitastop.com/i/GYbdPwUkB-u87qHsfuEDUAh6zD23qM6x5uYtgQNELtlCS7a7JostC3sXbz07VYO9W7fRwSZWKpsHOE9F8IGndqVnRhaG93uQ8pf8ieYmarhAQ61k1GVEm5n5gQ.jpg)

![EZJOB Triplex Pressure Washer Pump, 1-Inch Horizontal Shaft, Adjustable Unloader — 2](https://www.ofertitastop.com/i/HDevBxh7ituHzmB-4Ey0DYfxfM81nqxgToMEyLKZntCNmA-OljHETJhGw6Hj9Lh4F3anpcz0Y8GqbcjPsNsJiI5Jei5Z_ZuTYlstIsMGM1Y3Wq0F7oGmKy6yog.jpg)

![EZJOB Triplex Pressure Washer Pump, 1-Inch Horizontal Shaft, Adjustable Unloader — 3](https://www.ofertitastop.com/i/KTbAn5QWDyfQFLYaPx2FJSFHfezQe9iSsqk6OSRlPtAi2SHZ8XbA8UKVJd8t7T38s198ieV0QvRHebowMX5DsXFZPsm_M6en8JOfCTcQ2GzqsBJjHgRuurIsDw.jpg)

![EZJOB Triplex Pressure Washer Pump, 1-Inch Horizontal Shaft, Adjustable Unloader — 4](https://www.ofertitastop.com/i/KM2nTAe3OpmTs6yQkdnrczQhQSPKcDJJ-GUG6TTBvFKZWXVNcfax1ypznXpFWY6iwKLpCwAt6p8EZoiiSdsGpZ2TE8OXbtMnyU3sPOCWb5TnhXCLqvVQgFWixw.jpg)

![EZJOB Triplex Pressure Washer Pump, 1-Inch Horizontal Shaft, Adjustable Unloader — 5](https://www.ofertitastop.com/i/yYiuIzyP8VPYrz2hqjSCUOyAilPhCHVOhdSEZ7-Sv8dmvm011YiNfRjrtWQ_E9L5GWhjYGmZo2J1Mf4v8jZs4dJGdhyw5peCNWoVvQoPTJ7i7ocs8GSIXdv1kw.jpg)