ZF 9HP transmission
| ZF 9HP | |
|---|---|
| Overview | |
| Manufacturer | ZF Friedrichshafen |
| Production | 2013–present |
| Assembly | Gray Court, South Carolina, United States |
| Body and chassis | |
| Class | 9-speed transverse automatic transmission |
| Related | Aisin-Toyota 8-speed · ZF 8HP |
| Chronology | |
| Predecessor | ZF 4HP |
9HP is the trademark name for the ZF Friedrichshafen 9-speed automatic transmission models (9-speed transmission with Hydraulic converter and Planetary gearsets) for transverse engine applications, designed by ZF's subsidiary in Saarbrücken and built in Gray Court, South Carolina. It is used in front-wheel drive and all-wheel drive vehicles.
The 9HP is the world's first 9-speed automatic transmission for passenger cars. Land Rover and Jeep launched it at the 2013 Geneva Motor Show. The 2014 Jeep Cherokee then was the first car with this transmission delivered to customers.
Gear Model |
R | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | Total Span |
Span Center |
Avg. Step |
Compo- nents |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 9HP 48 · 2013 9HP 28 · 2013 |
−3.805 | 4.700 | 2.842 | 1.909 | 1.382 | 1.000 | 0.808 | 0.699 | 0.580 | 0.479 | 9.808 | 1.501 | 1.330 | 4 Gearsets 3 Brakes 3 Clutches |
- ↑ Differences in gear ratios have a measurable, direct impact on vehicle dynamics, performance, waste emissions as well as fuel mileage