Thompson Sears tractor lawn sprinkler worm gear set and top bushing.  

The worm gear and top bushing are white and shaft worm gear is silver. 

Uses included cotter pin instead of tension pin for easier removal and installation.

The gears should be greased with a high quality marine grease to insure smooth operation.

This set doesn’t include the lower bushing.  Please check out my other listing for the lower bushing.  

Parts are 3D printed with PETG.  

Offering quality 3D printed parts at a reasonable price.  Designed and made in the USA. 

Will combine shipping on multiple items.