Oxygen Sensor Part #s, quick reference INTERCHANGE

[Crazy K]

OXYGEN SENSORS; ACDELCO part numbers: (if more than one is listed, both will fit)

notes: all OBD 1 cars checked use the same sensor.

notes: all OBD 1.5 and obd 2 cars checked use 4 wire oxygen sensor.

notes: all 4 wire sensors have the same interchangeable generic sensor, meaning the difference in the part numbers is primarily the plug!

 

 

2.3 (140cid) displacement:

VIN A 1990 CS 2.3 HO Quad 4

AFS21 TYPE #21 female 1 wire connector {replaces 213-503 #19211437, 25166816}

AFS81 TYPE #21 female 1 wire connector {#19211437, 25162600, 25166816, AFS21}

 

VIN D 1990-1991 2.3 LO Quad 4

AFS21 TYPE #21 female 1 wire connector {replaces 213-503 #19211437, 25166816}

AFS81 TYPE #21 female 1 wire connector {#19211437, 25162600, 25166816, AFS21}

 

 

2.8 (173cid) displacement:

VIN W 1988-1989 2.8 MPFI V6

AFS21 TYPE #21 female 1 wire connector {replaces 213-503 #19211437, 25166816}

AFS81 TYPE #21 female 1 wire connector {#19211437, 25162600, 25166816, AFS21}

 

 

3.1 (189cid) displacement:

VIN V 1989-1990 TGP/TSTE 3.1 MPFI TURBO V6

AFS21 TYPE #21 female 1 wire connector {replaces 213-503 #19211437, 25166816}

AFS81 TYPE #21 female 1 wire connector {#19211437, 25162600, 25166816, AFS21}

 

VIN T 1989-1993 3.1 MPFI V6

AFS21 TYPE #21 female 1 wire connector {replaces 213-503 #19211437, 25166816}

AFS81 TYPE #21 female 1 wire connector {#19211437, 25162600, 25166816, AFS21}

 

VIN M 1993-1995 3100 SFI V6

AFS75 female 4x1 wire connector {#19178930, 213509, 25171579, 25312184}

 

VIN M 1996 3100 SFI V6

AFS75 female 4x1 wire connector {PRE-CONVERTER} {#19178930, 213509, 25171579, 25312184}

AFS97 male 2x2 wire connector {POST-CONVERTER} {#19178921, 25312196}

AFS123 male 2x2 wire connector {POST-CONVERTER} {#12587214, 19178924, 25312207, AFS116}

 

VIN M 1997-1998 3100 SFI V6

AFS109 female 2x2 wire connector {PRE-CONVERTER} {#19178958, 25312203}SENSOR,HTD OXY(POSN 1) IN EXH MANIFOLD/CROSSOVER

AFS97 male 2x2 wire connector {POST-CONVERTER} {#19178921, 25312196}

AFS123 male 2x2 wire connector {POST-CONVERTER} {#12587214, 19178924, 25312207, AFS116}

 

VIN M 1999-2001 3100 SFI V6

AFS109 female 2x2 wire connector {PRE-CONVERTER} {#19178958, 25312203}SENSOR,HTD OXY(POSN 1) IN EXH MANIFOLD/CROSSOVER

AFS141 male 2x2 wire connector {#19178747, 25318321}

 

 

3.4 (207cid) displacement:

VIN X 1991-1993 3.4 MPFI TWIN CAM/DOHC v6

AFS21 TYPE #21 female 1 wire connector {replaces 213-503 #19211437, 25166816}

AFS81 TYPE #21 female 1 wire connector {#19211437, 25162600, 25166816, AFS21}

 

VIN X 1994-1995 3.4 SFI DOHC V6

AFS75 female 4x1 wire connector {PRE-CONVERTER} {#19178930, 213509, 25171579, 25312184}

 

VIN X 1996 3.4 SFI DOHC V6

AFS75 female 4x1 wire connector {PRE-CONVERTER} {#19178930, 213509, 25171579, 25312184}

AFS97 male 2x2 wire connector {POST-CONVERTER} {#19178921, 25312196}

AFS123 male 2x2 wire connector {POST-CONVERTER} {#12587214, 19178924, 25312207, AFS116}

 

VIN X 1997 3.4 SFI DOHC V6

AFS109 female 2x2 wire connector {PRE-CONVERTER} {#19178958, 25312203}

AFS97 male 2x2 wire connector {POST-CONVERTER} {#19178921, 25312196}

AFS123 male 2x2 wire connector {POST-CONVERTER} {#12587214, 19178924, 25312207, AFS116}

 

 

3.8 (231cid) displacement:

VIN K 1998 3.8 SFI V6

AFS109 female 2x2 wire connector {PRE-CONVERTER} {#19178958, 25312203}

AFS97 male 2x2 wire connector {POST-CONVERTER} {#19178921, 25312196}

AFS123 male 2x2 wire connector {POST-CONVERTER} {#12587214, 19178924, 25312207, AFS116}

 

VIN K 1999 3.8 SFI V6

AFS109 female 2x2 wire connector {PRE-CONVERTER} {#19178958, 25312203}

AFS141 male 2x2 wire connector {#19178747, 25318321}

 

INCOMPLETE. MANY MORE TO LIST... MORE TO COME!

 

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