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Author's Note: I would like to thank the good folks at ALTO Products for providing ATSG with an A6MF1 transmission used in this article.
Hyundai has been quite forthcoming with providing technical data for its 6-speed transmission — much of which is required should the need arise to diagnose one of them. This transmission is used in both Hyundai and Kia vehicles as far back as 2009 here in the United States. The information begins with identifying the various versions used, their application and designation as follows:
• The A6GF1 is fitted with a 1.2L, 1.6L, 1.8L or a 2.0L. Most are behind the 1.6L.
• The A6MF1 is fitted with a 2.0L or 2.4L engine with a maximum torque capacity of 23.5 Nm.
• The A6MF2 is fitted with a 2.4L engine with a maximum torque capacity of 28.5 Nm.
• The A6LF1 is fitted with a 3.3L engine with a maximum torque capacity of 33.5 Nm.
• The A6LF2 is fitted with a 3.5L or 3.8L engine with a maximum torque capacity of 36.5 Nm.
• The A6LF3 is fitted with a 4.0L engine with a maximum torque capacity of 40.0 Nm.
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On the transmission, there is a tag riveted to the case with the vehicle identification number on it. Alongside this tag, etched into the case, is a transmission number. This many times is very difficult to see. If it is readable, and this identification number begins with the letters NA, it is the A6GF1; BA is the A6LFx transmission; EA or FA will be the A6MFx. With all these different names, when it comes to Hyundai and Kia, this transmission is simply referred to as the A6 transmission. A variation of this little 6-speed can also be found in late-model Dodge Dart 2.0L and 2.4L vehicles (2012 and up), which in this application is called the 6F24.
