ZF Friedrichshafen AG is a German technology manufacturing company that supplies systems, in particular transmissions for all kind of passenger cars and SUVs, light commercial vehicles such as vans and light trucks, as well as all types of heavy and special vehicles like trucks and buses.
Basically there are two types of motor vehicle transmissions:
Basically there are two types of engine installation:
Every type of transmission occurs in every type of installation.
The 8-speed automatic 8HP, launched in 2008, is now in its fourth generation and has been adopted by more than 20 brands from BMW to Ram; by 2023 over 15 million units has been produced. [1]
| Model Gener- ation [a] | Version | Pro- duction Period | Engine Orien- tation | Gear Ratios [b] | Span | Layout | Cou- pling | Control | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1st Top | Count [c] Step [d] | Nomi- nal [e] Effec- tive [f] | Power Flow [g] Gear- sets [h] | Brakes Clutches | ||||||
| 3HP 12 | 20 kg⋅m (196 N⋅m ; 145 lb⋅ft ) | 1965 – 1977 | Longitudinal | 2.5600 1.0000 | 3 1.6000 | 2.5600 2.0000 | S 2 | 2 2 | Torque Converter | Hydraulic |
| 3HP 12 | TBD | 1965 – 1977 | Longitudinal | 2.2857 1.0000 | 3 1.5119 | 2.2857 2.0000 | S 2 | 2 2 | Torque Converter | Hydraulic |
| 3HP 20 | TBD | 1967 – | Longitudinal | TBD 1.0000 | 3 TBD | TBD | S 2 | 2 2 | Torque Converter | Hydraulic |
| 3HP 22 | TBD | 1973 – 1990 | Longitudinal | 2.7331 1.0000 | 3 1.6532 | 2.7331 2.0857 | S 2 | 3 2 | Torque Converter | Hydraulic |
| 3HP 22 | 30 kg⋅m (294 N⋅m ; 217 lb⋅ft ) | 1973 – 1990 | Longitudinal | 2.4795 1.0000 | 3 1.5746 | 2.4795 2.0857 | S 2 | 3 2 | Torque Converter | Hydraulic |
| 4HP 22 | 380 N⋅m (280 lb⋅ft ) | 1980 – 2003 | Longitudinal | 2.7331 0.7281 | 4 1.5541 | 3.7539 2.8647 | S 3 | 4 3 | Torque Converter w/ Lockup | Hydraulic |
| 4HP 22 | 380 N⋅m (280 lb⋅ft ) | 1980 – 2003 | Longitudinal | 2.4795 0.7281 | 4 1.5045 | 3.4055 2.8647 | S 3 | 4 3 | Torque Converter w/ Lockup | Hydraulic |
| 4HP 18FL [i] 4HP 18Q [j] | 350 N⋅m (258 lb⋅ft ) | 1984 – 1998 | Longitudinal Transverse | 2.5789 0.7424 | 4 1.5145 | 3.4737 3.4737 | S 3 | 2 3 | Torque Converter w/ Lockup | Hydraulic |
| 4HP 14 | TBD | 1987 – 2001 | Transverse | 2.4118 0.7387 | 4 1.4835 | 3.2647 3.2647 | S 3 | 2 3 | Torque Converter | Hydraulic |
| 4HP 24 | 400 N⋅m (295 lb⋅ft ) | 1987 – 2004 | Longitudinal | 2.7331 0.7281 | 4 1.5541 | 3.7539 2.8647 | S 3 | 4 3 | Torque Converter w/ Lockup | Hydraulic |
| 4HP 24 | 400 N⋅m (295 lb⋅ft ) | 1987 – 2004 | Longitudinal | 2.4795 0.7281 | 4 1.5045 | 3.4055 2.8647 | S 3 | 4 3 | Torque Converter w/ Lockup | Hydraulic |
| 4HP 20 | TBD | 1995 – | Transverse | TBD | 4 TBD | TBD | S 3 | 2 3 | Torque Converter | Hydraulic |
| 4HP 16 | TBD | 2004 – 2008 | Transverse | TBD | 4 TBD | TBD | S 3 | 2 3 | Torque Converter | Hydraulic |
| 5HP 18 | 310 N⋅m (229 lb⋅ft ) | 1990 – 1997 | Longitudinal | 3.6648 0.7424 | 5 1.4906 | 4.9363 4.9363 | S 3 | 3 4 | Torque Converter w/ Lockup | Electronic |
| 5HP 19 | 325 N⋅m (240 lb⋅ft ) | 1997 – 2002 | ||||||||
| 5HP 30 | 560 N⋅m (413 lb⋅ft ) | 1992 – 2000 | Longitudinal | 3.5526 0.7865 | 5 1.4578 | 4.5169 4.5169 | S 3 | 3 3 | Torque Converter w/ Lockup | Electronic |
| 5HP 24 | 440 N⋅m (325 lb⋅ft ) | 1996 – 2002 | Longitudinal | 3.5714 0.8037 | 5 1.4519 | 4.4435 4.4435 | S 3 | 3 3 | Torque Converter w/ Lockup | Electronic |
| 6HP 26 1st [k] | 600 N⋅m (443 lb⋅ft ) | 2000 – 2007 | Longitudinal | 4.1708 0.6911 | 6 1.4327 | 6.0354 4.9236 | P & S 3 | 2 3 | Torque Converter w/ Lockup | Electronic |
| 6HP 19 1st [k] | 350 N⋅m (258 lb⋅ft ) | |||||||||
| 6HP 32 1st [k] | 750 N⋅m (553 lb⋅ft ) | |||||||||
| 6HP 28 2nd [k] [6] | 600 N⋅m (443 lb⋅ft ) | 2007 – 2014 | Longitudinal | 4.1708 0.6911 | 6 1.4327 | 6.0354 4.9236 | P & S 3 | 2 3 | Torque Converter w/ Lockup | Electronic |
| 6HP 21 2nd [k] | 350 N⋅m (258 lb⋅ft ) | |||||||||
| 6HP 34 2nd [k] [l] | 750 N⋅m (553 lb⋅ft ) | |||||||||
| CFT 23 [8] | 230 N⋅m (170 lb⋅ft ) | 2003 – 2007 | Transverse | 2.42 0.42 | ∞ (CVT) 1.000 (CVT) | 5.762 5.762 | S 1 | — — | Torque Converter w/ Lockup | Electronic |
| CFT 30 [m] [9] | 310 N⋅m (229 lb⋅ft ) | 2004 – 2007 | Transverse | 2.47 0.42 | ∞ (CVT) 1.000 (CVT) | 5.881 5.881 | S 1 | — — | Torque Converter w/ Lockup | Electronic |
| 7DT-45 [n] | 500 N⋅m (369 lb⋅ft ) | 2009 – | Longitudinal RR | 3.91 0.62 | 7 1.359 | 6.306 5.726 | S 7 [o] | 0 7 | Dual- Clutch | Electronic |
| 7DT-70 [p] | 780 N⋅m (575 lb⋅ft ) | 2010 – | ||||||||
| 7DT-75 [q] | 750 N⋅m (553 lb⋅ft ) | 2010 – | Longitudinal | 5.97 0.59 | 7 1.471 | 10.119 7.746 | S 7 [o] | 0 7 | Dual- Clutch | Electronic |
| 8DT-80 [r] | 1,000 N⋅m (738 lb⋅ft ) | 2016 – | Longitudinal | 5.966 0.534 | 8 1.412 | 11.172 9.775 | S 8 [o] | 0 8 | Dual- Clutch | Electronic |
| 8DT-55 [s] | 600 N⋅m (443 lb⋅ft ) | 2019 – | Longitudinal RR | 4.89 0.61 | 8 1.346 | 8.016 6.541 | S 8 [o] | 0 8 | Dual- Clutch | Electronic |
| 8HP 70 Pilot [29] [30] | 700 N⋅m (516 lb⋅ft ) | 2008 – 2011 | Longitudinal | 4.6957 0.6667 | 8 1.3216 | 7.0435 4.9452 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic |
| 8HP 30 1st | 300 N⋅m (221 lb⋅ft ) | 2010 – 2015 | Longitudinal | 4.7143 0.6667 | 8 1.3224 | 7.0714 4.9429 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic |
| 8HP 45 1st | 450 N⋅m (332 lb⋅ft ) | |||||||||
| 8HP 55 1st | 650 N⋅m (479 lb⋅ft ) | 2010 – | Longitudinal | 4.7143 0.6667 | 8 1.3224 | 7.0714 4.9752 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic |
| 8HP 65 1st | 650 N⋅m (479 lb⋅ft ) | 2010 – | ||||||||
| 8HP 70 1st | 700 N⋅m (516 lb⋅ft ) | 2010 – 2015 | ||||||||
| 8HP 90 1st | 900 N⋅m (664 lb⋅ft ) [t] | 2010 – 2015 | ||||||||
| 8HP 75/I 2nd [31] | 740 N⋅m (546 lb⋅ft ) | 2014 – 2018 | Longitudinal | 4.7143 0.6667 | 8 1.3224 | 7.0714 4.9752 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic |
| 8HP 30 2nd [31] | 300 N⋅m (221 lb⋅ft ) | 2014 – 2019 | Longitudinal | 5.0000 0.6400 | 8 1.3413 | 7.8125 5.4000 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic |
| 8HP 50 2nd [31] | 500 N⋅m (369 lb⋅ft ) | |||||||||
| 8HP 75/II 2nd [31] | 740 N⋅m (546 lb⋅ft ) | 2014 – 2019 | Longitudinal | 5.0000 0.6400 | 8 1.3413 | 7.8125 5.4348 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic |
| 8HP 95 2nd [31] | 900 N⋅m (664 lb⋅ft ) [t] | 2014 – Present | ||||||||
| 8P 45R [u] | 450 N⋅m (332 lb⋅ft ) | 2016 – Present | Longitudinal | TBD TBD | 8 1.2275 | TBD 4.2000 | P & S 4 | 2 3 | integrated | Electronic |
| 9HP 28 [33] [34] [35] | 280 N⋅m (207 lb⋅ft ) | 2013 – Present | Transverse | 4.7001 0.4792 | 9 1.3303 | 9.8085 7.9402 | P & S 4 | 3 3 | Torque Converter w/ Lockup | Electronic |
| 9HP 48 [33] [34] [35] | 480 N⋅m (354 lb⋅ft ) | |||||||||
| Automatic Transmissions With Components For Hybrid Drive On Request | ||||||||||
| 8HP 76/I 3rd | 900 N⋅m (664 lb⋅ft ) [t] | 2018 – Present | Longitudinal | 5.0000 0.6400 | 8 1.3413 | 7.8125 5.4348 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic |
| 8HP 30 3rd | 300 N⋅m (221 lb⋅ft ) | 2018 – Present | Longitudinal | 5.2500 0.6400 | 8 1.3507 | 8.2031 5.8000 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic |
| 8HP 51 3rd | 500 N⋅m (369 lb⋅ft ) | |||||||||
| 8HP 76/II 3rd | 750 N⋅m (553 lb⋅ft ) | 2018 – Present | Longitudinal | 5.5000 0.6400 | 8 1.3597 | 8.5938 6.2391 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic |
| Automatic Transmissions With Integrated, Versatile Component System For Hybrid Drive | ||||||||||
| 8HP 100 4th [v] | 1,000 N⋅m (738 lb⋅ft ) | 2022 – Present | Longitudinal | 5.0000 0.6400 | 8 1.3413 | 7.8125 6.2000 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic |
| 8HP 80 4th [w] | 800 N⋅m (590 lb⋅ft ) | 2022 – Present | Longitudinal | 5.5000 0.6400 | 8 1.3597 | 8.5938 7.1000 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic |
| ||||||||||
These are for heavy motor vehicles; such as large goods vehicles (trucks), buses, motorcoaches, agricultural machinery, plant equipment (such as earth movers), or specialist military vehicles such as tanks.
| | This section needs expansion. You can help by adding missing information. (November 2009) |
| Model Gener- ation | Version | Pro- duction Period | Engine Orien- tation | Gear Ratios [a] | Span | Layout | Cou- pling | Control | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1st Top | Count [b] Step [c] | Nomi- nal [d] Effec- tive [e] | Power Flow [f] Gear- sets [g] | Brakes Clutches | ||||||||
| 8AP 600 T [h] | 600 N⋅m (443 lb⋅ft ) | 2017 – Present | Longitudinal | 4.8889 0.6389 | 8 1.3374 | 7.6522 6.6523 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic | ||
| 8AP 800 T [h] | 800 N⋅m (590 lb⋅ft ) | |||||||||||
| 8AP 1000 T [h] | 1,000 N⋅m (738 lb⋅ft ) | |||||||||||
| 8AP 1200 T [h] | 1,200 N⋅m (885 lb⋅ft ) [i] | |||||||||||
| 8AP 1200 S [j] | 1,200 N⋅m (885 lb⋅ft ) [i] | 2017 – Present | Longitudinal | 4.8889 0.6389 | 8 1.3374 | 7.6522 5.8803 | P & S 4 | 2 3 | Torque Converter w/ Lockup | Electronic | ||
| ||||||||||||