OEM snowblower inner retaining ring 337227ma fits Sears Craftsman, noma, murraySnowblower inner retaining ring for snowblowers. The item “OEM snowblower inner retaining ring 337227ma fits Sears Craftsman, noma, murray” is in sale since Friday, December 11, 2015. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Outdoor Power Equipment\Snow Blowers”. The.