ICT Billet 551782-375 - LT M28 to 3/8" NPT Coolant Temperature Sensor Adapter Fitting LT1 LT4 L83 LS1

Coolant Temperature Sensor Fitting Replaces your engine block coolant drain plug with an 3/8" NPT port (will not fit oem LS/LT sensor thread) Compatible with all GM LS & LT (Gen III, IV, & V) series engines Made in Wichita, Kansas from aerospace grade, USA produced billet aluminum Includes: 1 Aluminum coolant feed adapter, 1 Sealing washer