Merchandised transmission, automatic provisions, overdrive

Years 1983–93, 1995–96, 1998–09 Models 21 Factory citations 64

Also described as Automatic transmission, 4 speed overdrive (merchandising code for the 440-T4)Transmission, merchandised, automatic provisions, overdriveTransaxle, merchandised, automatic provisions, overdriveTransmission, automatic 4 speed, overdriveMerchandised transmission, automatic overdriveTransmission, 4 speed automatic, overdriveMerchandised transmission, automatic, provisions, overdrive

Also documented for Buick Cadillac Chevrolet GMC Oldsmobile Saturn

Documented applications

6000 — A-body (1982–1991)

1985–1989 Single-source

the ordering code for the 440-T4 unit; V6 engines only (Wikipedia); the cited kit pages print MXO (letter O); the zero form is the code; matched to the unit by meaning: Wikipedia names the 440-T4 (4T60) on the 6000 from 1985 but prints no code; 1990–1991 are left out because no listed kit page 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 — 1986 Chevrolet Celebrity, p.42.
GM Heritage factory kit — 1987 Chevrolet Celebrity, p.42.
GM Heritage factory kit — 1988 Chevrolet Celebrity, p.46.
GM Heritage factory kit — 1989 Chevrolet Celebrity, p.10.

Aztek — U-body (2001–2005)

2001–2005 Factory-verified

GM prints MXO in these lists; MX0 in GM's other lists with the same part. The 2002 list reads merchandised automatic transmission.

GM factory document — 2001 pontiac aztek awd rpo code list, p.1.
GM factory document — 2002 pontiac aztek awd rpo code list, p.1.
GM factory document — 2003 pontiac aztek awd rpo code list, p.1.
GM factory document — 2004 pontiac aztek awd rpo code list, p.1.
GM factory document — 2005 pontiac aztek awd rpo code list, p.1.

Bonneville — Tenth generation (2000–2005)

2003–2005 Factory-verified

The lists print MXO (letter O); the real code is MX0, which GM's other lists print with the same wording.

GM factory document — 2003 pontiac bonneville rpo code list, p.1.
GM factory document — 2005 pontiac bonneville rpo code list, p.1.

Bonneville — H-body, 9th gen (1992–1999)

1998–1999 Factory-verified

Bonneville Club agrees.

GM factory document — 1998 pontiac bonneville rpo code list, p.1.
GM factory document — 1999 pontiac bonneville rpo code list, p.1.

Firebird — Third generation (1982–1992)

1983–1984, 1986–1992 Factory-verified

3rdgenformula, the labels and every cited Camaro page print MXO (letter O); the zero form is the code; 1985 is not claimed: no Firebird source read names the 1985 automatic; Firebird years: Wikipedia 1983; thirdgen.org powertrain tables 1984, 1986; thirdgen.org label decodes 1984, 1986; 3rdgenformula option pages 1987–1992; shared F-body code; cited from the Camaro kits

GM Heritage factory kit — 1983 Chevrolet Camaro, p.26.
GM Heritage factory kit — 1984 Chevrolet Camaro, p.5.
GM Heritage factory kit — 1986 Chevrolet Camaro, p.39.
GM Heritage factory kit — 1987 Chevrolet Camaro, p.16.
GM Heritage factory kit — 1988 Chevrolet Camaro, p.35.
GM Heritage factory kit — 1989 Chevrolet Camaro, p.35.
GM Heritage factory kit — 1990 Chevrolet Camaro, p.37.
GM Heritage factory kit — 1991 Chevrolet Camaro, p.31.
GM Heritage factory kit — 1992 Chevrolet Camaro, p.85.

Firebird — Fourth generation (1993–2002)

2001–2002 Factory-verified

GM factory document — 2001 pontiac firebird rpo code list, p.1.
GM factory document — 2002 pontiac firebird rpo code list, p.1.

G3 — Daewoo Kalos (T250) / Aveo5 twin (2009)

2009 Factory-verified

GM factory document — 2009 pontiac g3 rpo code list, p.1.

Pontiac G5 — Delta (2007–2009)

2007–2009 Factory-verified

printed MXO in the Cobalt kit; the Cobalt order guide lists it as the 4 speed automatic with a 3.63 axle ratio; shared Delta platform code; Chevrolet Cobalt kit.

GM factory document — 2007 pontiac g5 rpo code list, p.1.
GM factory document — 2009 pontiac g5 rpo code list, p.1.
GM Heritage factory kit — 2007 Chevrolet Cobalt, p.153.

G6 — Epsilon / GMX381 (2005–2010)

2005–2006 Factory-verified

the Malibu kit prints MXO.

GM factory document — 2005 pontiac g6 rpo code list, p.1.
GM factory document — 2006 pontiac g6 rpo code list, p.1.
GM Heritage factory kit — 2005 Chevrolet Malibu, p.92.
GM Heritage factory kit — 2006 Chevrolet Malibu, p.131.

Grand Am — Fifth generation (1999–2005)

2001–2005 Factory-verified

GM factory document — 2001 pontiac grand am rpo code list, p.1.
GM factory document — 2005 pontiac grand am rpo code list, p.1.

Grand Prix — G-body (1983–1987)

1984, 1986–1987 Single-source

Wikipedia names the 200-4R four-speed overdrive automatic as a new 1984 option with the 305 V8, and for 1986 on the 2+2 and with the LB4; Eighties Cars gives the 1987 four-speed automatic as required with the V8 and available with the LB4; no Grand Prix source prints the code, so it is matched by its meaning, and the 1986 2+2 listing gives its gearbox as MW9; 1985 is left out: no Grand Prix source read names a 1985 four-speed; the kit pages print MXO; shared G-body code; cited from the Chevrolet Monte Carlo kit

GM Heritage factory kit — 1984 Chevrolet Monte Carlo, p.33.
GM Heritage factory kit — 1986 Chevrolet Monte Carlo, p.32.
GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.

Grand Prix — W-body (1988–1996)

1991, 1993, 1995–1996 Single-source

matched to the unit by meaning: Wikipedia names a four-speed automatic for the Grand Prix throughout, without a code; the 1991 order guide words it 4-speed automatic, the 1993–1996 guides 4-speed automatic, electronic; the kits print MXO (letter O); 1992 and 1994 are left out because no listed kit page of those years prints the code; the description follows the merged regal-w-body-1997, century-w-body and lumina-gen2 docs, while the merged lumina-gen1 doc reads MX0 as Transmission, 4 speed automatic, electronic; shared W-body code; cited from the Chevrolet Lumina kit

GM Heritage factory kit — 1991 Chevrolet Lumina, p.18.
GM Heritage factory kit — 1993 Chevrolet Lumina, p.16.
GM Heritage factory kit — 1995 Chevrolet Lumina, p.10.
GM Heritage factory kit — 1996 Chevrolet Lumina, p.18.

Grand Prix — W-body, 7th gen (1997–2003)

1999–2003 Factory-verified

The 1999 list prints MXO (letter O), as does the 2000 list; the 2003 list words it 4-speed automatic transmission.

GM factory document — 2001 pontiac grand prix rpo code list, p.1.
GM factory document — 2003 pontiac grand prix rpo code list, p.1.

Grand Prix — Eighth generation (2004–2008)

2004–2008 Factory-verified

GM factory document — 2004 pontiac grand prix rpo code list, p.1.
GM factory document — 2008 pontiac grand prix rpo code list, p.1.

Montana — U-body second generation (1997–2005)

2000–2005 Factory-verified

the 2000 list prints MXO; MX0 in the 2001–2005 lists and GM's other lists

GM factory document — 2000 pontiac montana ext rpo code list, p.1.
GM factory document — 2001 pontiac montana ext rpo code list, p.1.
GM factory document — 2002 pontiac montana ext rpo code list, p.1.
GM factory document — 2003 pontiac montana ext rpo code list, p.1.
GM factory document — 2004 pontiac montana ext rpo code list, p.1.
GM factory document — 2005 pontiac montana 4wd rpo code list, p.1.

Montana SV6 — Second generation, U-body (2005–2006)

2005–2006 Factory-verified

GM factory document — 2005 pontiac montana sv6 rpo code list, p.1.
GM factory document — 2006 pontiac montana sv6 rpo code list, p.1.

Solstice — Kappa (2006–2009)

2007–2009 Factory-verified

GM factory document — 2007 pontiac solstice rpo code list, p.1.
GM factory document — 2009 pontiac solstice rpo code list, p.1.

Sunfire — J-body (1995–2005)

2002–2005 Factory-verified

Merchandised provisions.

GM factory document — 2002 pontiac sunfire rpo code list, p.1.
GM factory document — 2005 pontiac sunfire rpo code list, p.1.

Torrent — Theta / GMT192 (2006–2009)

2006–2009 Factory-verified

The 2006 and 2007 lists read Merchandised Trans Auto Provisions O/D.

GM factory document — 2006 pontiac torrent rpo code list, p.1.
GM factory document — 2009 pontiac torrent rpo code list, p.1.
GM factory document — 2008 pontiac torrent rpo code list, p.1.

Vibe — First generation (2003–2008)

2003–2006 Factory-verified

the lists print MXO (letter O); MX0 in GM's other lists.

GM factory document — 2003 pontiac vibe awd rpo code list, p.1.
GM factory document — 2006 pontiac vibe fwd rpo code list, p.1.

Vibe — Second generation (2009–2010)

2009 Factory-verified

GM factory document — 2009 pontiac vibe fwd rpo code list, p.1.

This page aggregates every documented appearance of MX0 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.