Looking for the correct O2 sensor part number
#1
Senior Member
Posts like a Supercharger
Thread Starter
Join Date: Jun 2006
Location: Moon of meepsorp
Posts: 183
Likes: 0
Received 0 Likes
on
0 Posts
Looking for the correct O2 sensor part number
For my 93 L67, AC delco and Rock Auto web sites give two part number options as follows:
ACDELCO Part # AFS20 {#25162693}
SENSOR,HTD OXY(POSN 1) OEM SENSOR; IN EXH MANIFOLD/CROSSOVER-TYPE #20
ACDELCO Part # AFS21 {#25166816}
SENSOR,OXY(POSN 1) OEM SENSOR; IN EXH MANIFOLD/CROSSOVER
Since the emissions sticker on my radiator says “O2”, I presumed it is not heated and therefore bought the AFS21.
When I took existing sensor off the car, I saw it was AFS20.
Both parts are single wire.
GMPD shows part # 25162693 (AFS20) however it does not differentiate between L27 and L67 - so I’m not sure how accurate it is.
Anyone have any advice?
EDIT: Sticker says "O2S".
Is the existing one in the car the wrong part? Has anyone else with similar car used either of these Delco'*?
ACDELCO Part # AFS20 {#25162693}
SENSOR,HTD OXY(POSN 1) OEM SENSOR; IN EXH MANIFOLD/CROSSOVER-TYPE #20
ACDELCO Part # AFS21 {#25166816}
SENSOR,OXY(POSN 1) OEM SENSOR; IN EXH MANIFOLD/CROSSOVER
Since the emissions sticker on my radiator says “O2”, I presumed it is not heated and therefore bought the AFS21.
When I took existing sensor off the car, I saw it was AFS20.
Both parts are single wire.
GMPD shows part # 25162693 (AFS20) however it does not differentiate between L27 and L67 - so I’m not sure how accurate it is.
Anyone have any advice?
EDIT: Sticker says "O2S".
Is the existing one in the car the wrong part? Has anyone else with similar car used either of these Delco'*?
#2
Junior Member
Posts like a Ricer Type-R
Non heated for the L67 that year. Single purple wire. L27 got heated (HO2S) you are not (O2S)
http://www.bonnevilleclub.com/forum/...e=article&k=16
Techinfo is your friend.
http://www.bonnevilleclub.com/forum/...e=article&k=16
Techinfo is your friend.
#3
Senior Member
Posts like a Turbo
Join Date: Mar 2006
Location: Houston, Tx
Posts: 367
Likes: 0
Received 0 Likes
on
0 Posts
Went through the same thing on my friend'* '93 Caprice, with the exact same part numbers!
I think they're truly interchangeable, but the one that came out was an AFS20 (skinny on the top by the wire), so that'* what we went with. It'* working fine in his application. Also, check here:
www.rmsautoparts.com
I know for a fact they have plenty of both in stock! They're good people, with good prices.
I think they're truly interchangeable, but the one that came out was an AFS20 (skinny on the top by the wire), so that'* what we went with. It'* working fine in his application. Also, check here:
www.rmsautoparts.com
I know for a fact they have plenty of both in stock! They're good people, with good prices.
#4
Senior Member
Posts like a Turbo
Join Date: Mar 2006
Location: Houston, Tx
Posts: 367
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by willwren
Non heated for the L67 that year. Single purple wire. L27 got heated (HO2S) you are not (O2S)
http://www.bonnevilleclub.com/forum/...e=article&k=16
Techinfo is your friend.
http://www.bonnevilleclub.com/forum/...e=article&k=16
Techinfo is your friend.
Thread
Thread Starter
Forum
Replies
Last Post