You are buying (4) brand new bronze caster bushing for a Wright Stander Mower Replaces Wright part number 14990003. This bronze bushing will work on the following Wright models: WS32″, WS36″, WS42″, WSS48″, WS48″, WS52″, WS61 79530002 IPL: WS, STANDER- LARGE FRAME, REV 2004/10/27, SN 20425 79530003 IPL: WS, STANDER- LARGE FRAME, REV 2009/07/01, SN 49705 79530005 IPL: WS, STANDER- SMALL FRAME, REV 2006/07/01, SN 20303 79530006 IPL: WS, STANDER- SMALL FRAME, REV 2006/12/01, SN 26288 79530011 IPL: WSES, SENTAR SPORT & SPORT RH, REV 2006/08/01, SN 26077 79530012 IPL: WSES, SENTAR SPORT & SPORT RH, REV 2007/01/01, SN 33615 79530013 IPL: WSES, SENTAR SPORT & SPORT RH, REV 2008/04/01, SN 43612 79530014 IPL: WSR, STANDER RH, REV 2006/08/01, SN 28551 79530015 IPL: WSR, STANDER RH, REV 2007/01/01, SN 33615 79530016 IPL: WSR, STANDER RH, REV 2008/04/01, SN 43612 79530021 IPL: WVH, VELKE PIST GRIP- HYDRO DR, REV 2006/09/01, SN 27543 Specifications: Height 1 3/8″ Diameter 1 1/4″ ID Outer Diameter 1 5/8″