Coolant Temperature Sensor Adapter for All Chevy GM, LS Engine M12-1.5 to 3/8"

Coolant Temperature Sensor Adapter M12-1.5 to 3/8" for All Chevy GM, LS Engine

This coolant temperature sensor adapter converts an M12-1.5 thread port to a 3/8 inch NPT thread, allowing installation of a temperature sensor in Chevy GM and LS engine applications.

Overview

This coolant temperature sensor adapter provides a thread conversion from M12-1.5 to 3/8 inch NPT, enabling precise coolant temperature monitoring in Chevy GM and LS engines. It is designed for engine swaps and custom cooling system setups where the original sensor thread does not match. The adapter ensures a leak-free seal for accurate temperature readings.

Built For Performance

• Machined from corrosion-resistant brass for durability
• Precision threads for tight, leak-free installation
• Compact design fits in tight engine bay spaces
• Compatible with most standard coolant temperature sensors
• Rated for high-temperature coolant environments

Fits These Machines

• for Chevy GM small block engines
• for Chevy GM big block engines
• for GM LS1, LS2, LS3, LS6, LS7, LS9
• for GM LT1, LT4 engines

On-The-Job Use

• Installing coolant temperature sensors in engine swaps
• Upgrading cooling system monitoring on Chevy GM vehicles
• Modifying LS engine cooling circuits for custom builds

Specs At A Glance

Good To Know

Q: Will this adapter work with OEM temperature sensors? A: Yes, it accepts most standard 3/8 inch NPT temperature sensors used in aftermarket and OEM cooling systems.

Q: Is thread sealant recommended? A: Using a small amount of thread sealant or Teflon tape on the NPT threads helps ensure a leak-free connection.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.