Dorman 645-668 Oxygen Sensor Pigtail

Works. 96-99 C1500Pin A - TANPin B - PURPLEPin C - BLACKPin D - PINKExtreme misfires caused lean condition and cat wasglowing red hot and caught this connector on fire. Buy o2 sensor along with this to solve your problems. Pin A-D above is for the harness wires. Check other o2 sensors harnesses to be sure.

Works Great

Had my transmission done and not too long after i had sensor codes. well when i went to do the sensor i found the lines were cut from my driveshaft. still had the existing connector and followed the wire colors to rewire the new one in. relocated the wiring to its proper place and no issues since.

fits well

Everything worked great after wiring in the new pigtail since mine got ripped off by the front driveshaft