ZF 9HP48 Sectional View
| ITEM | DESCRIPTION |
|---|---|
| 1 | Fluid pan |
| 2 | Valve block |
| 3 | Planetary gear set 4 |
| 4 | Planetary gear set 3 |
| 5 | Planetary gear set 2 |
| 6 | Planetary gear set 1 |
| 7 | Dog clutch A |
| 8 | Spur pinion |
| 9 | Park interlock gear |
| 10 | Multiplate clutch 'B' |
| 11 | Multiplate brake 'C' |
| 12 | Multiplate brake 'D' |
| 13 | Left splined output shaft (connection to halfshaft) |
| 14 | Right splined output shaft (connection to Power Transfer Unit (PTU)) |
| 15 | Right splined output shaft (connection to halfshaft) |
| 16 | Differential |
| 17 | Automatic Transmission Fluid (ATF) pump |
| 18 | Multiplate clutch 'E' |
| 19 | Dog clutch 'F' |
| 20 | Input shaft |
| 21 | Torsional damper |
| 22 | Torque converter stator |
| 23 | Torque converter lock-up clutch |
| 24 | Torque converter turbine |
| 25 | Torque converter assembly |
| 26 | Torque converter impeller |
The main casing retains the ATF (automatic transmission fluid) at the bottom. A drain plug is located in the main casing. The oil level is checked by removal of a level plug, with the engine running and the transmission fluid at a temperature of between 37 to 45°C (99 to 113°F). The level is correct when the oil flow becomes a drip from the level plug hole.
The transmission has a fluid cooler which is located at the front of the transmission, adjacent to the fluid pan. The cooler is connected to the transmission casing by two sealed connections. The fluid cooler is connected into the engine cooling system and cools the transmission fluid by heat transfer through the cooler to the engine coolant.
For additional information, refer to: TRANSMISSION COOLING