Find the right part faster
Multiple models matched. Select your model to confirm fit.

Key 3/16 sq x 1

Output shaft key

Output shaft key 35mm

Keystock 1/4x2

Key-square

Key 3/16 sq x 1.50

Key-square

Square key, drive pulley
Pressure Washer square keys are crucial components that connect the engine's crankshaft to the flywheel, ensuring smooth power transmission. If you've encountered issues such as the engine not starting or running inconsistently, the square key may be compromised. Repair Clinic offers a wide selection of genuine OEM Pressure Washer square key replacements, ensuring a precise fit and maintaining your equipment's warranty. Our extensive inventory allows you to find the exact part for your Pressure Washer model. Access replacement parts online and enjoy expert support for seamless repairs. For other essential components, check out our Craftsman Pressure Washer Parts. Keep your Pressure Washer in top condition with genuine OEM parts from Repair Clinic.
Pressure Washer Square Key Replacement is essential for maintaining the efficiency of your equipment. Here are some common questions to help guide you through the process.
To replace a square key, first disconnect the spark plug for safety. Remove the pump assembly to access the square key. Slide out the old key and fit the new one in its place. Ensure the key is securely positioned before reassembling the pump.
The square key connects the engine shaft to the pump, ensuring they rotate together. A worn or broken key can lead to operational failure, making replacement critical for proper function.
Repair Clinic offers a wide selection of genuine OEM pressure washer parts, including square keys. With competitive pricing and same-day shipping, you can quickly get the parts you need. Visit our lawn equipment parts page or check out Pressure Washer Axle, Roller, Shaft & Wheel Parts for related components.


Ensure your pressure washer operates smoothly by replacing worn or broken square keys with ease. These essential components maintain the alignment and functionality of your washer's engine, ensuring optimal performance. Order your pressure washer square key replacements online and enjoy the convenience of same-day shipping. With our user-friendly part number lookup, quickly find the exact replacement part you need. Benefit from our No-Hassle 365-Day Returns and Price Match Guarantee, ensuring you get the best deal on genuine parts. Don't let a faulty square key disrupt your cleaning tasks; keep your equipment running efficiently with reliable replacements.
Pressure Washer RepairNeed more Pressure Washer parts? Check out our wide selection of Pressure Washer Parts to find everything you need for maintenance and repairs.
For those seeking Pressure Washer Square Key replacements, knowing your pressure washer's model number is essential. Typically found on the frame or engine, the model number ensures you find the correct replacement Pressure Washer parts online. Whether you're a homeowner or a professional technician, accurately identifying this number simplifies your search and guarantees compatibility, allowing you to order with ease. Keep your equipment running smoothly by replacing worn square keys promptly. For further assistance, visit our dedicated page on Craftsman Pressure Washer Parts.

At Repair Clinic, we understand the importance of keeping your pressure washer in top condition. Our dedicated customer service team is available seven days a week to assist you with finding the right replacement parts, including Pressure Washer square key replacements. Enjoy the convenience of our model/part number lookup, ensuring you quickly find the exact part you need. With genuine OEM parts and expert troubleshooting assistance, you can confidently tackle any repair. Our live chat feature is perfect for quick support, and our no-hassle 365-day returns policy ensures peace of mind. Remember, regular maintenance such as cleaning filters and inspecting seals can prevent many common issues, like a non-starting engine due to a clogged carburetor or a leaking pump from worn-out seals. Trust Repair Clinic for all your Pressure Washer parts needs, and explore our extensive repair resources to make your DIY repairs easier than ever.

Learn the top reasons your pressure washer soap injector isn't working and how to fix it quickly. Diagnose clogged nozzles, injector valves, and other common issues.

Is your pressure washer losing power? Find out the two most common reasons for low or no water pressure and how to troubleshoot them for fast, effective repairs.

If your pressure washer is leaking water, the pump seals or thermal relief valve could be to blame. Learn how to identify and fix the source of water leaks fast.