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Simpson AAA Horizontal Triplex Pressure Washer Pump Review

Editor's Choice

Simpson 90037 High-Pressure Washer Pump Kit

Versatile Replacement for Most Engines
9/10
EXPERT SCORE
This durable pressure washer pump delivers up to 3700 PSI, making it ideal for tackling tough cleaning tasks with ease. Its user-friendly installation and built-in easy-start system ensure efficiency and reliability for all your pressure washing needs.
Updated: 2 hours ago

Simpson AAA Horizontal Triplex Pressure Washer Pump Review

Introduction

The Simpson 90037 High-Pressure Washer Pump Kit is a powerful replacement option designed for those seeking to enhance their pressure washing capabilities. Manufactured by Simpson, a well-known name in outdoor power equipment, this pump is engineered for high performance in demanding cleaning tasks. Intended for both residential and commercial use, this pump is ideal for tackling tough jobs like paint removal, graffiti cleaning, and heavy grime.

Product Overview

The Simpson 90037 pump features a robust construction with a sleek black finish that gives it a professional appearance. Built from high-quality materials including a brass pump head and polished ceramic-coated pistons, it is designed to resist corrosion and wear, ensuring long-lasting performance. Unique to this model is its built-in easy-start system, which simplifies the starting process, making it user-friendly even for novices.

Key Features and Specifications

  • Maximum Pressure: Up to 3700 PSI
  • Flow Rate: 2.5 GPM
  • Hollow Shaft: 3/4” for compatibility with most engines
  • Construction: Brass pump head and ceramic-coated pistons
  • Dual oversized ball bearings: For reduced friction and smoother operation
  • Easy-Start System: Fully adjustable EZ Start unloader system
  • Installation: Comes fully plumbed with all necessary hoses and fittings
  • Manufacturer: Simpson, distributed by Allparts Equipment & Accessories in the USA
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Experience Using the Product

Using the Simpson 90037 pump has been a largely positive experience. Upon installation, which was quick and straightforward due to the included fittings, I immediately noticed its powerful performance. During various scenarios, such as cleaning the driveway, washing my car, and removing old paint from outdoor furniture, the pump delivered consistent and impressive results. The adjustable pressure feature was particularly helpful, allowing me to fine-tune the output depending on the surface being cleaned. The ergonomic control handle made operation comfortable, reducing fatigue during extended use.

Pros and Cons

Pros

  • High-pressure capability with 3700 PSI for tough cleaning jobs.
  • Durable materials ensure longevity and reduced maintenance.
  • Easy installation process with all necessary components included.
  • User-friendly design, especially with the easy-start system.
  • Versatile compatibility with most engines due to the hollow shaft.

Cons

  • Price point may be high for casual users.
  • Verification of compatibility with existing engines is crucial, which may complicate the purchasing process for some buyers.

Conclusion

Overall, the Simpson 90037 High-Pressure Washer Pump Kit stands out as a robust and reliable option for anyone looking to upgrade their pressure washing capabilities. Its combination of high performance, durable construction, and user-friendly features make it suitable for both professional and home use. While the price may be a bit high for occasional users, those who frequently engage in heavy-duty cleaning will find great value in this pump. For anyone in need of a powerful, efficient, and versatile pressure washer pump, the Simpson 90037 is a commendable choice.

Ray D Berryman
Ray D Berryman

Ray D. Berryman spent most of his working life selling, servicing, and repairing pressure washers and outdoor cleaning equipment. Over the years, he helped homeowners and contractors choose the right machines, solve common problems, and keep their equipment running properly. Now retired, Ray shares practical advice based on real hands-on experience rather than product brochures.

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