Tap here to read more about Deck Spindle for Gravely 991132 991135 991138 991216 991219 991222 52 / 3x. Premium Quality Replacement Part. Spindle Assembly Maintenance-Free Aluminum. 991132 (Pro-Turn 152) – Gravely Pro-Turn 52 Zero-Turn Mower, Kohler ZT (SN: 000101 – 009999). 991135 (Pro-Turn 152) – Gravely Pro-Turn 52 Zero-Turn Mower, Kohler EZT EFI (SN: 000101 – 009999). 991138 (Pro-Turn 152) – Gravely Pro-Turn 52 Zero-Turn Mower, Kawasaki FX CARB (SN: 000101 – 009999). 991216 (Pro-Turn 52) – Gravely Pro-Turn 52 Zero-Turn Mower, Kawasaki FS (SN: 000101 – 009999). 991219 (Pro-Turn 52) – Gravely Pro-Turn 52 Zero-Turn Mower, Kohler ZT (SN: 000101 – 009999). 991222 (Pro-Turn 52) – Gravely Pro-Turn 52 Zero-Turn Mower, Kawasaki FS, CARB (SN: 000101 – 009999). 58810800 59202600 59225700 59215400 69219700. MANUFACTURED TO MEET OR EXCEED OEM PERFORMANCE.