Small Engines (Lawn Mowers, etc.)/fuild for toro K66MRY trany


QUESTION: I have a Yard King pro lawn tractor with a Tuff Toro K66 MRY rear end in it,MRY P/N 69022, what fluid is used in it? Old fluid looks clear. It has no fluid in the reservor and is over an inch low from fill cap. It slowed down and finially stopped and became noisy unless the clutch (brake ) is slightly pushed in. Any help would be help full.

ANSWER: Google "tuff torque k66 fluid" or copy and paste the URL below:,d.aWw


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QUESTION: Found another problem, the drive pulley and fan assembly is bad. The splines in the pulley are stripped and I can't a part no for them, believe me I tried. Can you help me I am at my wits end. I have been on this computer for hrs and have had no success. Any help would be appreciated.


Do you have a Toro lawn mower with a Tuff Torq transmission?

What is the Toro model number?  It will be a 5 digit model number located on a sticker, about the size of a business card.

You may have to look up the Toro model number to find the pulley part number.


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Eric A. Jones


Lawnmower Repair . Certified Master Service Technician from B&S. Have 23 years experience on B&S, Lawn Chief, Weed Eater, Echo, Peerless, Wheel Horse, Snapper, Atlas, MTD, McCulloch, Homelite and many other numerous brands. Specialize in electrical repair.


Born and raised in the midwest. Started tinkering with engines when I was about 14 on my Suzuki RM-80. I began lawn mower repair at a small hardware store. I knew absolutely nothing. I read lots of repair manuals and met an older fellow who taught me many lessons. I continued working on small engines through high school and paid my way through college working on mowers at the same hardware store. Decided to get away from the midwest and mower repair so I joined the Air Force. I repaired air traffic control electronic equipment and ended up in Hawaii where I got a part time job at Small Engine Clinic. I gained a lot of experience from the Small Engine Clinic and had a blast repairing small engines. I then took the Briggs and Stratton Master Service Technician test and earned my MST. I then traveled to Wisconsin where I attended the factory update training seminar and received formal training. Continued working on mowers part time as I completed 20 years of military. Retired from the military on a Friday and continued in the lawn and garden industry the next Monday.

MAS Aerospace Operations BA Mathematics AAS Electronic Communications AAS Electronic Technology

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