Bench tested with AC millivolt output test — both sensors respond properly to vibration....
For sale is a pair of genuine OEM GM knock (detonation) sensors, part number 12589867.
These sensors were purchased new from a GM dealership and briefly installed for diagnostic testing. They were confirmed working properly and then removed after determining the issue was elsewhere.
This listing includes:
(2) OEM GM Knock Sensors – 12589867
Cut wiring harness included at no extra charge.
These are original GM parts, not aftermarket replacements. OEM knock sensors are strongly preferred on LS engines to prevent false knock readings and drivability issues.