Hey guys, did a complete engine rebuild, figure i should replace the o2 sensors while im at it, what are the part numbers for the stuff i need to replace and where do i get it from? Preferably not gm parts direct, they take a week or 2, i need to get these in a few days. Thanks

 

Pretend you are at a parts counter. Will anyone help you if you don't tell them details about your car so they can find the part? Make yourself a small signature with basic info.

1993 Oxygen sensor (non-heated)
AC-Delco #AFS21
GM p/n 25166816

1994-1995 heated oxygen sensor
1996-1997 front heated oxygen sensor
AC-Delco #AFS75
GM p/n 25312184

1996-1997 rear heated oxygen sensor
AC-Delco AFS97
GM p/n 25312196

Posted often on this board:

If you ever want to buy GM parts, use either of the guys below. Wholesale prices and no rip-off shipping.

Dal Slabaugh: 877-448-5451
email: lockitup@bright.net
VanDevere Buick/Pontiac/Olds Akron, OH

or

Jason Cromer: 877-726-8295 or 850-243-8826 (direct parts dept ph #)
email: parts@samtaylor.com
Sam Taylor Buick/Cadillac Ft. Walton Beach, FL