Mitsubishi F4A51

Transmission general data

The automatic transmission F4A51 from Mitsubishi company was developed in 1998. This transmission modification is intended for FWD and AWD vehicles with engine capacity from 1.3 up to 2,8 liters.

Technical issues and repair guidelines

This 4-speed automatic transmission has two modifications. The modification F4A51 was used cars with engines capacity from 1,3 up to 1,8 liters. The modification F4A52 was used for more powerful engines. In terms of design, these transmissions are similar, but at the same time some elements in one transmission are larger than parts in the other one. This automatic transmission was installed on Japanese cars Mitsubishi Galant, Lancer and Korean cars Hyundai Serato, Santa Fe and Sonata. Subsequently, the transmission found application in different American and Chinese mid-size cars. Later this transmission was upgraded and a maximum engine torque was increased. It should be emphasized, that the F4A42 unit gained a good reputation. Thanks to simplicity of its design, this transmission is notable for reliability and durability. Its not a surprise when after running 300.000 kilometers this transmission does not require the overhaul. However, the service lifespan of this transmission also depends on operating conditions and the driving style of the car owner. This transmission is very sensitive to abrupt accelerations and is mainly intended for operation in urban areas.

In order to simplify the repair procedure of the F4A52 system, it is required to use special repair kits, which help transmission specialists to fix any malfunctions. Pump and seals are the main soft spots in this transmission. In specific cases, problems may occur in the valve body. The valve body damage usually leads to expensive and time-consuming overhauls.