This is the OE Coolant Temp Sensor for GEN 3 and 4 LS heads. Made with standard GM scaling. Absolutely NO OUTSIDE manufacturing, 100% made in the USA. THIS IS the sensor currently used in NEW applications by GM. M12 x 1.5 threads. Contains proper crush washer pre-installed.
Comes with pre-sealed threads, using Loctite DRI 503 (White) or Loctite DRI 516/517 (Red/Brown). Can be used for Coolant, Water, Motor Oil, Transmission Fluid, and many other automotive fluids.
Accepts standard GM temperature connectors:
#15449028 APTIV GT 150 Non-Shrouded (This is what GM uses)
#15490464 APTIV GT 150 Partially Shrouded
#15355317 APTIV GT 150 Fully Shrouded
#15336004 APTIV GT 150 Fully Shrouded (This is what we advise)
#12162193 APTIV Metri Pack 150.2 (Pull-to-Seat) NOT ADVISED