Parts list: № Number Qty Name Options Next page: ST821253 Electro-Magnetic Header Clutch and Primary Countershaft ST824135 Power Take-Off Gearcase, ProDrive™ (1 of 8) ST865988 Power Take-Off Gearcase, ProDrive™ (6 of 8) ST867426 Engine Gear Case Clutch, Tier 2 and Stage 5 ST867432 Engine Gear Case Valve, Tier 2 and Stage 5