Best Simpson Pump Accessories in 2026

Most people assume a broken pressure washer requires a massive investment in a new unit, but a tiny piece of anodized aluminum can actually save your entire setup. This Simpson water outlet fitting is the unsung hero for anyone dealing with a faulty connection between their pump and high-pressure hose. It utilizes a male M20 to male M22 configuration, making it a precise solution for connecting female M22 threaded hoses. The installation is incredibly straightforward, especially since it arrives with the high-pressure O-ring seal already installed. Whether you are managing a residential driveway or a commercial cleaning job, using genuine components like this ensures your pump maintains its integrity without the headache of mismatched parts.

A cracked or leaking pump connection can instantly derail a weekend dedicated to cleaning the driveway or siding. This Simpson outlet connector serves as a vital lifeline for getting your gas-powered pressure washer back into operation without the massive expense of a full pump replacement. The anodized aluminum construction provides a durable, corrosion-resistant solution for both residential and commercial setups. I found the installation process remarkably straightforward, especially since it arrives with the high-pressure O-ring seal already installed and ready to go. By converting a male 3/8-inch to a male M22, it creates a secure bridge for your high-pressure hose. Just ensure you verify your specific pump model compatibility before swapping it out to ensure a perfect, leak-free fit.

Stop throwing away perfectly good gas engines just because your pump has failed. This Simpson horizontal triplex replacement is the ultimate lifeline for industrial-grade pressure washers that need to reclaim their 3200 PSI punch. What really sets this kit apart is the PowerBoost Technology, which ramps up pressure at the nozzle for stubborn grime, paired with a handy manual knob to dial that power back down for delicate surfaces. I love that they ditched the messy dipstick in favor of a clear sight glass. You can instantly spot if your oil is low or contaminated with water. It’s a professional-grade overhaul that uses standard SAE bolt patterns and M22 connections, making it a smart, cost-effective way to extend the life of your heavy-duty cleaning equipment.

A cracked or leaking pump manifold can bring your entire outdoor cleaning routine to a grinding halt. This Simpson replacement kit is the direct solution for anyone owning an OEM Technologies axial cam pump, specifically the 510020 and 520006 models. Instead of replacing the entire unit, you can restore performance by swapping in this comprehensive assembly. It comes fully loaded with everything needed for a professional-grade repair, including the unloader, thermal relief valve, seals, and integrated soap injection. The kit features a standard 3/4" garden hose inlet and an M22 high-pressure outlet, ensuring a seamless fit. Whether you are managing residential chores or commercial jobs, using these genuine components is a much smarter way to save money while getting your pressure washer back in action quickly.

This Carbpro unloader valve kit serves as a vital maintenance solution for Coleman Powermate and Simpson high-pressure washer pumps, offering a reliable way to restore pressure regulation. When your pump starts acting up or loses its ability to bypass pressure correctly, swapping out the internal components with this factory-packaged kit is a much smarter move than replacing the entire unit. It arrives as a complete set, ensuring you have exactly what is pictured to get your machine back in working order. Just make sure to cross-reference your existing part number before ordering to ensure a perfect match. At this price point, it is an essential spare part for anyone looking to extend the lifespan of their outdoor cleaning equipment without breaking the bank.

Most homeowners settle for a malfunctioning pressure washer and a costly replacement pump, but this unloader valve kit offers a much smarter way to restore your equipment. Instead of abandoning a perfectly good machine because the pressure won't regulate, you can swap out this specific component to get your cleaning power back. It is designed to fit a wide range of popular brands like Coleman Powermate, Simpson, and Troy-Bilt, making it a versatile fix for various pump models. While the installation is straightforward, you must be diligent about verifying your specific pump's dimensions before ordering to ensure a seamless fit. At this price point, it serves as an essential, budget-friendly maintenance tool for keeping your outdoor gear running smoothly without the headache of a total overhaul.

The cool, brushed aluminum surface of this manifold kit feels substantial the moment you pull it from the packaging. Instead of replacing your entire pressure washer pump when performance dips, this comprehensive kit allows you to restore your machine to its original factory specifications. It is a complete overhaul in a single box, featuring everything from the unloader and thermal relief valve to the essential seals and mounting hardware. I was particularly impressed by the integrated soap injection and the standard 3/4" garden hose inlet, which make the transition from old to new incredibly seamless. Whether you are managing a residential driveway or a commercial cleaning setup, this genuine Simpson component ensures your axial cam pump regains its high-pressure punch without the cost of a total unit replacement.

Most homeowners settle for buying an entirely new pressure washer when a leak develops, but this Simpson manifold kit proves that a targeted repair is much smarter. Instead of replacing the whole unit, you can restore your axial cam pump to its original performance by swapping out the worn internal components. This kit is a comprehensive overhaul in a single package, providing everything from the unloader and thermal relief valve to the integrated soap injection and mounting hardware. It is specifically designed as an original equipment replacement for the 520004 pump model, ensuring that the seals and valves fit perfectly without the guesswork. Whether you are managing residential chores or heavy-duty commercial tasks, this kit makes getting your equipment back into action straightforward and cost-effective.

A rusted or clogged outlet fitting can completely sideline your pressure washer, turning a productive afternoon into a frustrating mechanical headache. This Simpson replacement kit serves as a direct fix for AAA brand axial cam pumps, specifically designed to restore water flow when your current hardware fails. Instead of replacing the entire pump assembly, you can swap out the worn-out component with this genuine gold-standard part. It acts as a precise replacement for the 7110137 outlet valve kit, ensuring the fit is exact and the pressure remains consistent. Whether you are managing a residential setup or a heavy-duty commercial rig, using an original equipment part like this saves significant time and money compared to buying new machinery.

Is a leaking water outlet the only thing standing between you and a clean driveway? This Simpson Cleaning replacement kit is the direct solution for anyone dealing with a faulty AAA brand axial cam pressure washer pump. Instead of replacing your entire unit, you can swap out the damaged fitting to restore full functionality to your machine. It is designed specifically for a range of AAA pump models, ensuring a precise fit that matches original equipment standards. The kit arrives with pre-installed O-rings, which takes the guesswork out of the installation process and helps you get back to your outdoor cleaning projects without unnecessary downtime. It is a smart, cost-effective way to maintain both residential and commercial equipment using genuine components.

Why settle for a dead pressure washer when a single component failure is stalling your entire cleaning project? This Simpson manifold replacement kit is the professional way to breathe life back into your OEM Technologies axial cam pump. Instead of replacing the entire unit, you can swap in this high-quality brass and aluminum assembly to restore performance. It arrives ready to work, featuring pre-installed valves and an integrated unloader, which significantly simplifies the installation process. The kit is impressively comprehensive, including the necessary mounting hardware, a soap hose screen, and a thermal relief valve. With a standard 3/4-inch garden hose inlet and an M22 high-pressure outlet, it ensures a seamless fit for residential or commercial setups looking to save money through smart repairs.

This XingLi unloader valve kit stands as a budget-friendly essential for anyone looking to restore pressure washer performance without breaking the bank. Instead of replacing an entire pump assembly, this kit provides a targeted fix for common pressure fluctuations and bypass issues. It is specifically designed to be compatible with a wide range of equipment, including Coleman Powermate, Simpson, and several Troy Bilt models. The kit arrives as a complete set, making the replacement process straightforward for DIY enthusiasts. While the low price point is a major draw, the focus remains on providing a reliable component to keep your lawn and patio cleaning gear running smoothly. Just be sure to verify your existing part number against the compatibility list before purchasing to ensure a perfect fit.