EW4040 Simpson AAA Horizontal Plunger Pump Kit 4.0 GPM 4400 PSI

Description

Product Overview

The EW4040 Simpson AAA Plunger Pump Kit is engineered for demanding cleaning applications, offering a robust 4400 PSI burst pressure and a steady 4.0 gallons per minute flow rate. Constructed with a solid brass pump head, the unit resists corrosion and wear, while polished ceramic-coated pistons reduce friction and extend service life. Dual oversized ball bearings provide smooth operation and minimize vibration, ensuring consistent performance even under continuous heavy loads. The kit includes a 1″ hollow shaft, all necessary hoses, fittings, and a standard SAE bolt pattern for straightforward installation on gas-powered pressure washer engines. Compact dimensions of 10″ L x 10″ W x 11″ H and a weight of 18 pounds make it portable yet sturdy, suitable for both professional contractors and dedicated DIY enthusiasts.

Usage

This pump kit excels in a variety of outdoor cleaning scenarios. Whether you are stripping old paint from decks, removing graffiti from walls, or tackling stubborn grime on concrete surfaces, the high-pressure output cuts through debris with ease. The adjustable EZ Start unloader system allows users to fine-tune pressure for delicate surfaces such as vehicle exteriors or garden equipment, preventing accidental damage. Designed for gas-powered washers, the kit integrates seamlessly with engines ranging from 1500 to 2500 cc, delivering reliable power without the need for electrical connections. Its quick-connect fittings reduce setup time, enabling professionals to move from job to job efficiently, while homeowners can enjoy a hassle‑free experience for seasonal maintenance tasks like driveway cleaning or patio restoration.

Why Choose Us

Choosing the EW4040 means investing in a product backed by Allparts Equipment & Accessories, a trusted distributor based in Southwest Michigan, USA. Our commitment to quality control includes rigorous testing of each pump for pressure consistency, flow accuracy, and durability before shipment. The brass pump head and ceramic-coated pistons are sourced from reputable manufacturers, guaranteeing resistance to harsh chemicals and prolonged operational life. Additionally, we provide comprehensive technical support and a responsive customer service team ready to assist with installation guidance, troubleshooting, and warranty claims. Our after‑sales service includes a 12‑month limited warranty covering defects in materials and workmanship, reflecting confidence in the pump’s performance and reliability.

Key Features

• High pressure of 4400 PSI tackles tough stains, paint and graffiti quickly.
• Steady 4 GPM flow ensures efficient cleaning without excessive water use.
• Brass pump head and ceramic‑coated pistons provide corrosion resistance and long service life.
• Dual oversized ball bearings reduce vibration for smoother operation and quieter performance.
• Comprehensive customer support and 12‑month warranty give peace of mind after purchase.

FAQ

Is this pump compatible with my existing pressure washer?

Yes. The EW4040 is designed to fit standard SAE bolt patterns and works with most gas‑powered pressure washers ranging from 1500 to 2500 cc. Verify your washer’s model number against the kit specifications before installation.

How do I install the pump kit?

Installation is straightforward: attach the 1″ hollow shaft to your washer’s engine flange, connect the supplied hoses and fittings, and secure the pump with the provided bolts. Detailed step‑by‑step instructions are included in the manual.

What maintenance is required?

Regularly inspect the pump head for debris, clean the ceramic pistons with a soft brush, and lubricate the ball bearings with approved oil every 50 hours of operation to maintain optimal performance.

Can I use this pump for residential cleaning tasks?

Absolutely. The adjustable pressure settings allow safe use on delicate surfaces such as cars, outdoor furniture, and garden tools, making it versatile for both professional and home projects.

What is covered under the warranty?

The 12‑month limited warranty covers any defects in materials or workmanship. It does not cover damage caused by misuse, improper installation, or unauthorized modifications.