From Honda Wiki

Honda has long built nearly all of its own Automobile Transmission (mechanics), unlike many other manufacturers which often source transmissions from other makers.

Automatic transmission

Honda's Automatic transmission are unusual in that they do not use Planetary gear like nearly all other makers. Instead, the Hondamatic and its successors use traditional sliding gears in parallel like a Manual transmission. Honda was forced to invent their new system due to the vast array of patents on automatic transmission technology held by BorgWarner and others.

Honda initially chose to integrate the transmission and engine block for its first application (in the N360) as in the Mini. The Hondamatic incorporated a lockup function, which Honda called a third ratio, and had manual gear selection. The company's early transmissions also used a patented Torque converter which used stator force rather than hydraulic controls for shifting.

The company's naming scheme is also confusing, as it is specific to a single model of vehicle and some identifiers are reused.

• 1973–1979 Honda H2 transmission — 2-speed
  • Honda Civic, Honda Accord, Honda Prelude
• 1979–1985 Honda H3 transmission — 3-speed
  • Honda Civic, Honda Accord, Honda Prelude, Honda CRX
• 1983–1991 H4 — 4-speed (aka AS/AK/F4/CA/P1/K4/L4/PY8A/ML4A/MY8A)
  • Accord, Prelude, Integra
• 1986–1990 G4 — 4-speed (aka L5/PL5X)
  • Honda/Acura Legend
• 1989–1991 Honda Civic AWD transmission — 4-speed (aka MPSA/S5)
  • Honda Civic AWD
• 1990–1997 H4A — 4-speed (aka A6VA/AOYA/APX4/APXA/BOYA/MP1A/MP1B/MPJA/MPOA/MPWA/MPXA/PX4B)
  • Honda Accord, Honda Prelude, Honda Odyssey/Isuzu Oasis, Acura CL
• 1990–2000 Honda Integra transmission — 4-speed (aka MP7A/MPRA/RO/S4XA/SKWA/SP7A)
  • Acura Integra
• 1991–1998 Honda Vigor transmission — 4-speed (aka M1WA/MPWA)
  • Acura Vigor, Acura TL
• 1991–2003 Honda MPYA transmission — 4-speed (aka MPYA/M5DA/M5HA/MPYA)
  • Acura Legend, Acura TL, Acura RL
• 1992–2003 Honda S24A transmission — 4-speed (also A24A/A2YA/A4RA/B46A/B4RA/B7ZA/BDRA/BMXA/M24A/M4RA/M4TA/MCVA/MDLA/MDMA/MRVA/S4RA/SLXA)
  • Civic, del Sol, CR-V
• 1995–2002 Honda B7XA transmission — 4-speed (aka B7TA/B7VA/B7YA/M7ZA/MPZA)
  • Honda Accord, Acura CL, Honda Odyssey/Isuzu Oasis, Acura TL
• 1996–2003 Honda Multimatic transmission — Continuously variable transmission (also M4VA/MLYA/SLYA)
  • Honda Civic HX CVT, Honda City
• 1997–2002 Honda M6HA transmission — 4-speed (also B6VA/BAXA/MAXA/MDWA/MGRA)
  • Honda Prelude, Acura CL, Honda Accord, Honda Odyssey/Isuzu Oasis
• 2000– H5 — 5-speed (also B7WA/BAYA/BCLA/BGFA/BGHA/BYBA/M7WA/MAYA/MCLA/MDKA/MGFA/MGHA/MRMA)
  • Acura TL, Acura CL, Acura MDX, Acura RSX, Honda Odyssey, Honda Accord

Manual transmission

References

• "The Hondamatic Transmission". Honda.Com. http://world.honda.com/history/challenge/1968hondamatic/index.html. Retrieved on February 25.