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Chemical injection kit for pressure washer pump. Be sure to use the lowest pressure nozzle when adding chemicals to the spray.

In-line fuel filter

Outlet tube

Trigger handle

Spray Wand

Inlet tube connector

Self Tapping Screw

Main switch 20a (16a)

Pressure washer high pressure hose, 25 ft. This hose can be used on pumps that produce up to 3000 PSI.

Unloader kit

Wheel 12" x 1.75" 1/2" hub - 5

Briggs & Stratton Pressure Washer Pump Saver. 4 oz.

U clip

Plastic chemical siphon tube

Soap nozzle-blue
Black Max pressure washers are built for budget-conscious users who need reliable cleaning power. Like all gas pressure washers, the pump is the workhorse — and the most common failure point. When pressure drops, won't build, or you hear the motor running but no spray, the pump assembly is usually the culprit. A worn or damaged pump is one of the few repairs where you'll actually save money compared to buying a new unit.
Carburetors are the second-most common repair, especially after winter storage or if fuel sat in the tank for weeks. Ethanol in modern gas gums up the carb jets and float needle — sometimes a carburetor kit is all you need to restore full power. Spark plugs, fuel lines, and unloader valves round out the typical Black Max pressure washer repairs.
Find your Black Max pressure washer model number on the frame or engine shroud to get the exact pump, carburetor, and valve assemblies that fit your machine.
A sudden loss of pressure almost always points to the pump. Internal seals wear out, or debris gets lodged in the pump valves. Before you replace the pump, check the intake water supply — low water pressure into the unit can mimic pump failure. If water is flowing freely and pressure is still low or zero, the pump assembly needs replacement.
Stale fuel and ethanol damage to the carburetor is the #1 winter storage issue. Old gas gums up the needle, float, and jets inside the carb. Start with a carburetor rebuild kit — soak the carb in cleaner, replace the gaskets, and clean the jets. If that doesn't work, the carb body itself may have corrosion and needs full replacement. Always drain the fuel tank and run the engine dry before long storage.
The model number is usually stamped or printed on a label affixed to the main frame or the engine shroud. Look near the fuel tank or on the side of the pump housing. Once you have the model number, enter it in the search bar at the top of this page — Repair Clinic will show you every OEM part that fits your exact machine, from pump assemblies to carburetor kits to spark plugs.
OEM Black Max pumps are engineered for your specific engine's RPM and fuel type (gas vs. Electric). Aftermarket pumps may fit mechanically but often deliver wrong pressure or flow rate, which can damage the engine or reduce cleaning power. OEM pump replacement ensures your model-specific fit and performance and correct performance — it's worth the investment.


Ordering Black Max power washer parts online is straightforward with Repair Clinic. You can easily search for parts by model number or part number. Our full inventory of replacement parts ensures you can find the right part for your pressure washer.
With our No-Hassle 365-Day Returns policy, you can return uninstalled parts within a year of purchase. We offer a Price Match Guarantee, helping you shop with confidence on genuine OEM parts. For your convenience, same-day shipping is available on orders placed by 9:00 PM ET, so you get the parts you need promptly.
Whether you're a homeowner or a professional technician, our extensive online repair resources give you the diagnostics, videos, and step-by-step guides to complete the repair efficiently. We make it easy to find the right Black Max pressure washer parts for your equipment, including Black Max pressure washer pumps, spray guns, hoses, and more.
Black Max typically places the pressure washer model number on a label attached to the main frame or engine shroud. Check near the fuel tank, around the engine, and on the pump housing for a stamped or printed number. If the label is dirty or worn, wipe it gently and copy every letter and digit exactly, including hyphens. Search that number on our site and the results filter to parts built for your model. This lookup covers the complete Black Max pressure washer, so you can narrow everything from pump and engine parts to hoses and frame hardware. That means fewer wrong orders and a faster repair.

Diagnosing a Black Max Pressure Washer problem is easier when you have the right online reference material. Repair Clinic's video library, written repair guides, symptom articles, part testing walkthroughs, and exploded-view diagrams work together to guide you from the symptom to the correct part. Model number lookup confirms the exact OEM replacement so you order right the first time.

Low or no water pressure in your pressure washer? Learn the two most common causes clogged nozzles and faulty pumps"and how to troubleshoot and fix them. Get expert tips to restore your pressure washer's performance quickly.

A faulty spray gun can reduce your pressure washer's effectiveness. Learn how to identify when a replacement is needed and follow step-by-step instructions to install a new spray gun for proper function.

A leaking pressure washer can be caused by worn seals, a cracked pump, or loose connections. Learn how to diagnose and fix common pressure washer leaks to keep your equipment running efficiently.