The H4A Honda Transmissions were a modified version of Honda’s first 4-speed automatic transmission, the H4. Introduced in 1990 on the flagship Honda Accord, the H4A series had three shafts, rather than the two found on the H4.
Since the engine and transmissions mount from left to right instead of north to south, we call this setup a transverse engine and transmissions setup. This is also sometimes called an east-west engine. Most modern front wheel drive vehicles use this engine orientation except for a very few.
Honda automatic transmissions differ from other styles of automatic transmissions in design. It is still hydraulic, as all automatic transmissions are, yet it uses a unique gear train setup, which is different from the usual planetary gears setup the vast majority of automatic transmissions use.
Would you believe that the Honda transmissions are so well engineered and reliable that, literally, Acura uses Honda transmissions. One difference, since this is a transverse setup, the Honda engine is mounted on the right side with the transmission on the left side, and the Acura is mounted exactly 180 degrees different.
The rebuilding process of Honda transmissions is critical and precise. Every component used in the rebuild kits of choice has to come from the dealer, factory original parts are the only ones that allow this transmission to work properly. Aftermarket parts don’t meet the requirements.
Remember, when I say factory parts, I also mean using genuine factory only transmission fluid in your Honda transmission. It is the only fluid blended to work in your Honda transmission properly and give you perfect shifts and long life.
Needless to say, we include a rebuilt torque converter with the rebuilt transmission. The most important part of buying a rebuilt transmission is using a company that does not cheat. It serves no-ones best interests to buy an inferior product that has constant warranty problems and fails shortly out of warranty.
You can make the final call, but we will supply all of the transmission information you need to make the best possible choice for your concerns. If you want to speak with a sales staff member, give us a call at 866-320-1182 and ask us you toughest question. We will give you an honest answer. GotTransmissions.com