O2 Sensor Pre-Heat

[Magnumb]

Hello,

 

I was looking to replace my O2 Sensor on my 95 Yukon from a unit purchased from Rock Auto but they have too many options there are three part numbers for AC Delco AFS20, AFS21, AFS76. Thanks Justin

 

The O2 is located about 5 inches before the Cat. I can only find one.

[Steves95Sierra]

Hey Magnumb...

 

Mine -- '95 C1500 5l, 4-spd AutoTran(M30) w/o leaded fuel emissions -- uses the three-wire O2 sensor (ACDELCO Part # AFS76). Might want to check if the one on your truck has one-wire, or three-wires. If three wires.., that makes the choice much easier (only one to chose from ;) .

 

Steve.