ac delco o2 sensors

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Apr 17, 2008 | 07:16 PM

themack56

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ac delco o2 sensors

ok my question was, if i need to replace all 4 sensors, is there a part # each, or does each side have a part #, meaning the passenger side sensors have 1 part #, and the driver side have another

Apr 17, 2008 | 07:31 PM

sroach20

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why waste money on the rear two?

Apr 17, 2008 | 11:37 PM

themack56

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so should i just replace the pre cat o2s, and delete the rears?

Apr 18, 2008 | 08:26 AM

JR HAWK 9

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From: Lake Delton, WI

NGK/NTK:
- fbody front right: 21528
- fbody rear and front left: 21544
- C5 front: 21006
- C5 rear: 21537

Denso:
- fbody front right: 234-4087
- fbody rear and front left: 234-4025
- C5 front: 234-4012
- C5 rear: 234-4617

AC:
- fbody front right: 25312196
- fbody rear and front left: 25312197
- C5 front: 25312184
- C5 rear: 25317697