Our Upper Bushings are a direct fit for your Rammer S21. The OEM part number is 300148.
Big Hammer Co is an aftermarket manufacturer for all the brands we sell. Big Hammer Co is not endorsed or sponsored by, or in any way associated with Rammer/Allied. This product is an aftermarket part.
Any use of or reference to the Rammer/Allied trademark is for the sole purpose of indicating compatibility or product fit, and is not meant to imply any affiliation or relationship between Big Hammer Co and Rammer/Allied and/or the Rammer/Allied Trademark.