Premium Quality Replacement Part. Spindle & Blade w/ Belt & Pulley. RZT-50 (17AI2ACP010) – Cub Cadet 50 RZT Zero-Turn Mower, Kawasaki (2008 & Before). RZT-50 (17AI2ACP056) – Cub Cadet 50 RZT Zero-Turn Mower, Kawasaki (2008 & Before). RZT-50 (17AI2ACP256) – Cub Cadet 50 RZT Zero-Turn Mower, Kawasaki (2008 & Before). RZT-50 (17AI2ACP709) – Cub Cadet 50 RZT Zero-Turn Mower, Kawasaki (2008 & Before). RZT-50 (17AI2ACP710) – Cub Cadet 50 RZT Zero-Turn Mower, Kawasaki (2008 & Before). RZT-50 (17AI2ACP756) – Cub Cadet 50 RZT Zero-Turn Mower, Kawasaki (2008 & Before). RZT-50 (17RI2ACP056) – Cub Cadet 50 RZT Zero-Turn Mower, Kawasaki (2008 & Before). RZT-50 (17RI2ACP256) – Cub Cadet 50 RZT Zero-Turn Mower, Kawasaki (2008 & Before). 3 x Spindle Assembly w/. MANUFACTURED TO MEET OR EXCEED OEM PERFORMANCE.