Small Engines (Lawn Mowers, etc.)/Information about my engine


QUESTION: I have a Craftsman cast iron extra long life engine equipped with a timken bearing I would like to know what horsepower it is and if there are links to any manuals for my engine, Model# 146640012 serial#3166E

ANSWER: Can you double check the model number?  I tried looking up the model number but the Sears site could not find that number.

If you know the model number is correct then attach a picture so I can see if I can identify the engine.


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QUESTION: I've double checked, the number is kind of faded but looking at it now in brighter light it looks like either a 3 or an 8, ill try and upload a picture

ANSWER: If it is cast iron it might be pretty old.  Did you doulble check the 146.xxxxxx number?  This is the important number.


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QUESTION: yeah I did double check that it's either 143640012 or 148640012 but im almost positive its the first one, im sorry this is such a hassle

The 143640012 number came up as a Tecumseh carburetor. 143 sounds right.

Check out page 72 of this link:

Page 1 says it is an overhead valve 16 HP engine.  Is you engine an overhead valve model?

YIf so, you should have a Tecumseh OH160 engine.

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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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