Bad transmission? Don’t replace your tractor. Upgrade it!

These are the K66 Upgrade Kits you can have been reading about! Now you confidently handle those heavy-duty tasks that caused your old transaxle to fail.

With the K66 Upgrade Kit you will enjoy:

  • Nearly 2x the torque to the rear wheels
  • Fully serviceable transaxle
  • Increased ground speed
  • Ground engaging strength
  • Simple DIY installation
  • USA based installation and technical support
  • RJR Tractor’s FOREVER WARRANTY

The K66 Upgrade Kit is a complete DIY replacement solution for your broken or failed transaxle. Instead of a great tractor with a marginal transaxle, you can now have a real garden tractor that will perform as you expected when you bought it. Learn more about the Original K66 Upgrade Kit, here.

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What Our Customers Say
Richard P. of PA

Bottom line: tractor w/ new K66 was worth the cost/effort.

Robert K. of MO

It was a lot easier than I figured…

James T of NC

Hard to imagine I put up with the k46 for as long as I did.

Sandy D of PA

You can really feel the torque when going up hills.

Peter S of MD

In lay-man’s terms it is simple: Hot Damn! Holy S###…Wow!!!!

Daniel G of IA

RJR Tractor is the real deal and a great way to go.

Jeff K of NY

This is by far the most complete and well thought out kit I have seen.

Paul of VA

This has made my life a whole lot easier…one of the best purchases I’ve made in years.

Tony F of MD

It mows like a dream. It pulls like a mule and it pushes snow like a dump truck.

Don T. of BC, CANADA

…I’ve had my kit for two seasons now and it is simply awesome

Dennis G, of TN

My neighbor…spent nearly $7600.00 for an X500…he wishes he would have opted for this upgrade kit.

D Smith of OK

I went up one incline backwards for about 100 feet as a test. The K46 would not have done that.

Daniel G of IA

…anyone out there thinking of converting and upgrading to a K66 platform I highly recommend it.

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