Fits Sears models 917.353770 to 917.353777. This chain saw conversion kit is new in original packaging and is $2. Sold 'as is', no returns, no guarantees, these items have been gently used. We are near Jordan and Arapahoe Roads close to Centennial Hospital. Porch pick up during daylight hours only. From a clean, non-smoking home. Cash only, please. Thanks!