Automatic transmission, 3 speed (merchandising code for the THM 125C)

Years 1984–87, 1989 Models 3 Factory citations 6

Query this via API →

Also described as Automatic transmission, 3 speed (merchandising code for the THM 125)

Also documented for Buick Chevrolet GMC Pontiac Saturn

Documented applications

Cutlass Ciera — A-body (1982–1996)

1985, 1989 Single-source

the ordering code for the unit MD9 names; 1986–1988 are left out because those kit pages print MXT or MXIT; matched to the unit by meaning: no Ciera source prints the code; shared A-body code; cited from the Chevrolet Celebrity kits

GM Heritage factory kit — 1985 Chevrolet Celebrity, p.43.
GM Heritage factory kit — 1989 Chevrolet Celebrity, p.10.

Firenza — J-body (1982–1988)

1984, 1986–1987 Single-source

matched to the unit by meaning: Wikipedia's Firenza article names the 3 speed Turbo-Hydramatic 125 C automatic in its infobox but prints no code; the 1986 page prints MXI (letter I); 1985 is left out because the kit's option line is cut off after MX, and 1988 because no listed kit page heads the code; shared J-body code; cited from the Chevrolet Cavalier kit

GM Heritage factory kit — 1984 Chevrolet Cavalier, p.11.
GM Heritage factory kit — 1986 Chevrolet Cavalier, p.37.
GM Heritage factory kit — 1987 Chevrolet Cavalier, p.37.

Omega — X-body (1983–1984)

1984 Single-source

matched to the unit by meaning: Wikipedia's Omega article names the 3 speed TH-125C automatic in its infobox but prints no code; the page prints MXI (letter I); 1983 is left out because no listed kit page heads the code that year; shared X-body code; cited from the Chevrolet Citation kit

GM Heritage factory kit — 1984 Chevrolet Citation, p.34.

This page aggregates every documented appearance of MX1 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.