Model #917377573 Craftsman walk behind lawnmower, gas

Question and Answers


I have a mower model 917377573. I purchased 2 wheel kits 193139/144. I am unable to remove the pinion assembly. Is the shaft threaded?


The pinion gear is not threaded to the shaft. If you remove the e-clip on the axle, the pinion should slide off the shaft. The pinion must be rusted to the axle shaft.

Try spraying some rust buster on the shaft and tapping the pinion lightly with a hammer to help the rust buster penetrate along the shaft.

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Jimmy K -
Sears Technician
August 05, 2009

Recommended maintenance parts & accessories

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