The ZF 8HP50 8-speed automatic transmission has been assembled at a plant in Germany since 2014 and is installed on rear-wheel drive BMW models as the GA8HP50Z and all-wheel drive as the GA8HP50X. This gearbox is also installed on Chrysler, Dodge and Jeep under its own designation 850RE.
2nd generation of the 8HP family: 8HP50, 8HP65, 8HP75, 8HP95.
Specifications
| Production years | since 2014 |
| Type | automatic transmission |
| Number of gears | 8 |
| Type of drive | all wheel / rear |
| Engine volume, l | up to 3.6 |
| Torque output, Nm | up to 500 |
| Recommended oil | ZF Lifeguard Fluid 8 |
| Oil capacity, liter | 8.8 |
| Replacing the oil | every 60,000 km |
| Replacing the filter | every 60,000 km |
| Gearbox lifespan, km | ~300 000 |
| Weight, kg | 76 |
Gear ratios ZF 8HP50
Using the example of a BMW 1-Series 2017 with a 2.0 liter engine:
| Main | 2.813 |
| 1st | 5.000 |
| 2nd | 3.200 |
| 3rd | 2.143 |
| 4th | 1.720 |
| 5th | 1.314 |
| 6th | 1.000 |
| 7th | 0.822 |
| 8th | 0.640 |
| Reverse | 3.456 |
The transmission was installed on:
- Alfa Romeo Giulia I (Type 952) since 2015;
- Alfa Romeo Stelvio I (Type 949) since 2016;
- BMW 1-Series F20 in 2014 – 2019;
- BMW 2-Series F22 in 2014 – 2021;
- BMW 3-Series F30 in 2015 – 2019;
- BMW 4-Series F32 in 2015 – 2021;
- BMW 5-Series F10 in 2014 – 2017; 5-Series G30 in 2017 – 2020;
- BMW 6-Series G32 in 2017 – 2020;
- BMW 7-Series G11 in 2015 – 2019;
- BMW X3-Series G01 in 2017 – 2021;
- BMW X4-Series G02 in 2018 – 2021;
- BMW X5-Series F15 in 2015 – 2018;
- BMW X6-Series F16 in 2015 – 2018;
- Chrysler 300C 2 (LD) since 2018;
- Dodge Challenger 3 (LC) since 2018;
- Dodge Charger 2 (LD) since 2018;
- Dodge Durango 3 (WD) since 2017;
- Great Wall Poer 1 (P06) since 2019;
- Jeep Grand Cherokee 4 (WK2) in 2017 – 2021; Grand Cherokee 5 (WL) since 2021;
- Jeep Gladiator 2 (JT) since 2019;
- Jeep Wrangler 4 (JL) since 2017;
- Maserati Grecale 1 (M182) since 2022;
- Tank 300 I since 2021.
Disadvantages of the ZF 8HP50 gearbox
- The main problem is clogging of the solenoids with friction wear products.
- Due to dirt-clogged solenoids, oil pressure decreases and the gearbox begins to push.
- If you do not pay attention to the vibrations of the automatic transmission, the oil pump bearing will break.
- During aggressive driving, aluminum drums often fail and burst.
- The weak point of the gearbox of this family is the bushings and rubber gaskets.
