AAA 3700 PSI 2.5 GPM Triplex Pressure Washer Pump for Simpson Gas

Description

Product Overview

The AAA 3700 PSI 2.5 GPM Triplex Pressure Washer Pump is engineered to replace the original pump in Simpson gas‑powered pressure washers, delivering a reliable boost in cleaning performance. Constructed from high‑grade brass, the pump resists corrosion and wear, ensuring a long service life even under demanding conditions. PowerBoost technology allows the user to fine‑tune pressure output via a convenient hand knob, providing flexibility for a range of tasks from delicate siding cleaning to heavy‑duty fleet vehicle wash‑down. Dual oversized ball bearings reduce internal friction, while a built‑in thermal relief valve protects the pump from overheating during extended use. The pump features a 3/4″ shaft compatible with horizontal engine configurations, a garden‑hose inlet, and a threaded M22 outlet for standard pressure‑washer attachments. With a maximum flow rate of 2.5 gallons per minute, the unit balances pressure and volume to achieve efficient soil removal without excessive water consumption.

Usage

This pump is suited for professional contractors, property‑maintenance crews, and DIY homeowners who need dependable cleaning power. It excels in residential applications such as siding, driveway, and patio cleaning, as well as commercial scenarios like fleet vehicle washing, equipment degreasing, and large‑area surface preparation. The pump’s 3700 PSI rating makes it capable of tackling stubborn grime, while the 2.5 GPM flow ensures sufficient water coverage for thorough rinsing. Because the pump is designed for horizontal engine setups, it integrates seamlessly into most Simpson gas pressure washers without the need for extensive modifications. Users should match the engine shaft diameter, inlet size, and current pump inlet orientation to guarantee optimal fit and performance.

Why Choose Us

Choosing the AAA Triplex Replacement Pump means investing in a product that combines engineering precision with practical convenience. AAA has a reputation for manufacturing high‑quality pump components, and this model continues that tradition with rigorous testing and quality‑control standards. The brass construction not only offers superior durability but also provides a smooth, leak‑free seal that reduces maintenance intervals. PowerBoost technology gives users direct control over pressure, eliminating the need for multiple nozzle changes. Additionally, the pump comes with a complete hardware kit—including a siphon tube, mounting bolts, and a sight glass—so installation can be completed in under an hour. AAA backs the pump with a comprehensive warranty and responsive customer support, ensuring that any questions or concerns are addressed promptly.

Key Features

• Brass construction resists corrosion and extends pump lifespan
• PowerBoost knob lets you adjust pressure on‑the‑fly for varied tasks
• Dual oversized ball bearings reduce friction for smoother operation
• Thermal relief valve prevents overheating during long cleaning sessions
• Comes with full installation hardware and dedicated after‑sales support

FAQ

Is this pump compatible with all Simpson gas pressure washers?

The pump is designed for horizontal‑engine Simpson models that use a 3/4″ shaft. Verify your washer’s engine orientation, shaft diameter, and inlet size before purchase to ensure a perfect fit.

How do I install the PowerBoost adjustment knob?

The PowerBoost knob is pre‑installed on the pump housing. During installation, simply connect the pump to the engine using the supplied hardware, then tighten the knob to the desired pressure setting. No additional tools are required.

What maintenance is required to keep the pump performing optimally?

Regularly check the sight glass for oil level and replace oil according to the manufacturer’s schedule. The thermal relief valve and oversized bearings are self‑maintaining, but periodic inspection for wear or debris is recommended.

Can I use this pump with a cold‑water source?

Yes, the pump operates effectively with both cold and warm water. The built‑in thermal relief valve helps manage temperature variations, protecting internal components.

What warranty does AAA provide for this pump?

AAA offers a one‑year limited warranty covering defects in materials and workmanship. Contact AAA customer service for claim processing and any technical assistance you may need.