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Yamaha Grizzly 660 Power Steering Kit

Item #: PS-Y-G660
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Item Weight: 21.00 lbs.

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Yamaha Grizzly 660 Power Steering Kit
Model #: PS-Y-GRIZ660

Will Fit:
Yamaha Grizzly 660 : 2002-2008

EZ-STEER power steering kit for the Yamaha Grizzly 660 is the most advanced kit on the market. Designed to make your ride better, EZ-STEER drastically reduces steering effort allowing for longer more enjoyable rides. Along with enhanced steering, power steering will virtually eliminate bump steer and provide a smooth and consistent ride.

Unlike other kits, EZ-STEER has sealed input and output shaft as well as a unique injection molded Control Box seal guaranteeing a 100% watertight kit. What does this mean for you? Submerge, pressure wash, or hose- our sealed circuit board is guaranteed to keep you going.

Each EZ-STEER design endures rigorous testing to ensure the highest customer satisfaction in the industry. Maneuver through the rocks and technical terrain with more control. Speed through uneven terrain without wheel jerk. Dominate the mud holes and come out with ease.

Why EZ-Steer:
  • Reduces Steering Effort
  • Speed Sensitive Unit
  • Eliminates Bump Steer
  • Compact Control Box For Easier Mounting And Installation
  • NO Soldering Required For EZ-Steer Wiring
  • Sealed Input and Output Shafts
  • Watertight Control Box And Connectors
  • Powerful 220W motor

EZ STEER Power Steering Kits : By : SuperATV

SuperATV offers the premium product on the market and extends the industry’s best warranty to go with it. Each EZ Steer Power Steering kit that SuperATV manufactures carries a 3 year warranty against manufacturing defects. SuperATV warrants to the original purchaser that (a) the mechanical components of the EZ Steer Power Steering will be free of defects and (b) the electrical components will be free of defects.

For the period of 0-12 months, each EZ Steer component will have a free replacement. For the period of 13-36 months there will be a $50 charge for replacement parts.

How to make a warranty claim?
All warranties MUST have a Return Goods Authorization (RGA) number. Also, we cannot ship a new product until the warranty item has been inspected by a SuperATV employee.

1. Go to At the bottom of the page click Return Policy.
2. Complete the form to obtain an RGA number or call toll free 1-855-743-3427 for assistance.
3. Provide proof of purchase.
4. Provide proof of breakage. This should be done by returning the item to:

Warranty Department
2753 Michigan Road
Madison, IN 47250

5. Write the RGA number on the box. Also include the RGA number, proof of purchase and any notes in the box.
6. Customer pays to ship the item to SuperATV and we pay to ship it back.
7. SuperATV will contact you within 24 business hours of receiving the broken item.
With all warranty claims, standard shipping services apply unless otherwise approved. If you need expedited shipping,
please communicate to the Warranty Department and we will contact you with expedited shipping rates. We recommend
that you keep your tracking number and shipment information.
Download Installation InstructionsInstallation Instructions
Grizzly 660

Yamaha 660 Grizzly (2004)


Review of Yamaha Grizzly 660 Power Steering Kit - by: Grizzly 660
I installed this kit on my 660 a week ago and it's amazing. A good investment and I highly recommend it, it was a fairly easy installation other than I had to reshape a metal brake line to clear the motor. At first impression I thought there is a lot of slack in the bars from the torque sensor but that's not as noticeable once you ride it, and there is virtually no kick back and it's very easy to steer, however it does perform well in 2wd and 4wd except for when diff lock is activated. I also believe that it provides more assist when you first start the ride but not as much once the motor and module heats up after a long ride but it's still good. I believe it's the best accessory you can install on your bike and I would suggest buying it direct from Super ATV as they were easy to deal with and fast shipping plus a quick return on credit for old parts.

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Ray S.

Yamaha 660 Grizzly (2005)


Review of Yamaha Grizzly 660 Power Steering Kit - by: Ray S.
This is the best upgrade you can do to your quad. I installed it on my 2005 660 Grizzly. I like to take my time on installing projects like this so it took me a day and a half. It does take patience because everything fits very tight. The first ride out I rode with a friend that has a 2008 700 Grizzly with factory power steering and we rode each other quads. We both agreed this unit out preformed the factory power steering.

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