Factory LS cylinder head is machined with a metric M12-1.5 coolant sensor port that will not screw in the factory Small Block Chevy sensor. This adapter retains the original sensor and can be integrated into his swapped LS engine. Adapter has a female 3/8" NPT port, 0.85" deep. Please refer to thread chart to determine correct fit size. Made in Wichita, Kansas from aerospace grade, US billet aluminum. This adapter fits all LS series engines. Adapters are sold individually and include one sealing washer.

Male M12-1.5 to female 3/8"-18 NPT adapter. Fits SBC/BBC (3/8" NPT) cooling temperature sensor into LS series cylinder head. Compatibility: All GM LS series engines. Made in Wichita, Kansas, Aerospace Grade, Made in the USA, Billet Aluminum Includes: 1 Aluminum Adapter, 1 Sealing Washer Fits 0.85" long sensors. Measured from probe tip to outer edge of adapter. Most aftermarket gauges use a 3/8" NPT thread adapter (usually included with the gauge).


Manufacturer: ‎ICT Billet
Part number: ‎551179
Item weight: ‎23 g
Product size: ‎6.6 x 7.87 x 2.54 cm; 23 g
Discontinued by manufacturer: ‎No
Color: ‎Natural
Style: ‎Temperature sensor
Drawer interior dimensions: ‎Temperature sensor
Battery included: ‎No
Uses batteries : ‎No
Product dimensions (Length x Width x Height): ‎6.6 x 7.9 x 2.5 cm