DPH-A; TSK DPH-B; TSK DPH-A; DPH-C; DPR-A; DPR-B Transmissions Drive Unit, Complete Parts on group Drive Unit, Complete: Pos. Part No Qty Parts name Comments 1. 21661431 [1] Aquamatic drive 1.36 1. 21661432 [1] Aquamatic drive 1,46 2. 21661433 [1] Upper gear 3. 21550239 [1] Lower gear 1.36 3. 21550240 [1] Lower gear 1,46 Parts catalog : Drive Unit, Complete DPR-A, DPR-B Drive Unit, Complete DPH-C Drive Unit, Complete DPH-A, TSK DPH-B Flywheel Housing and Primary Shaft DPH-A, TSK DPH-B, DPH-C, DPR-A, DPR-B Flywheel Housing and Primary Shaft, Extended DPH-C Transom Shield: SINGLE DPH-A, DPR-A Transom Shield: STARBORD DPH-A, DPR-A Transom Shield: PORT DPH-A, DPR-A Transom Shield TSK DPH-B, DPH-C, DPR-B