Get all 4 wheels turning again!

Are you having problems with your 4wd? Has your warranty ran out and you don’t wanna pay dealer prices for repair? Read on…

The 4wd system on your Yamaha ATV or Side by Side is operated by a push button switch that sends power to a relay, which in turn sends power to the servo motor, which engages your 2wd, 4wd, and difflock.  It’s easy to troubleshoot and repair these components without spending an arm and a leg.

If you are unfamiliar with the 4wd system, see our troubleshooting page.  It will help you identify, diagnose, and repair your 4wd issues as easy and inexpensive as possible.

You’ll find How-To Videos, Free Service Manual downloads, and Step-by-Step troubleshooting tips.

Here at 501 Parts, we carry every 4wd system related part that you will need to get back up and running. We offer free troubleshooting videos and service manuals, as well as savvy tech support.


Save yourself some money!

We offer fast and free shipping on all our items, and the lowest prices on Yamaha 4wd components.

We’ve said enough and I’m sure you’re ready to get back on the trails. If you’re still unsure where to go from here, let us help you out.

Step 1- See our troubleshooting page to identify your 4wd components and figure what went wrong.

Step 2- Found the problem? (click here for our products page) Having trouble? Contact us, we’ll help.

Give us a chance to serve you, our #1 goal is your satisfaction!

We offer a FREE packet of electrical grease to waterproof your connectors with every electrical part order.