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Coolant Temperature Sensor Adapter for All Chevy GM LS Engine M12-1.5

Coolant Temperature Sensor Adapter for All Chevy GM LS Engine M12-1.5

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$28.59
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This Coolant Temperature Sensor Adapter is an adapter that allows installation of a 1/2" NPT coolant temperature sensor into an M12-1.5 threaded port, compatible with all Chevy GM LS engines.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.

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Product Overview

This coolant temperature sensor adapter converts an M12-1.5 port to a standard 1/2-inch NPT thread, enabling installation of a coolant temperature sensor in LS engine blocks or intake manifolds. Ideal for engine swaps and custom cooling systems, this adapter ensures a secure and leak-free connection for accurate temperature monitoring.

Key Features & Performance

  • Precision-machined from high-grade aluminum for strength and corrosion resistance
  • Converts M12-1.5 male thread to 1/2-inch NPT female thread
  • Includes a pre-installed O-ring for a leak-proof seal
  • Compatible with most 1/2-inch NPT coolant temperature sensors
  • Compact design fits tight engine bay spaces
  • Easy to install with basic tools ��� no special adapters needed

Fitment & Compatibility

  • Compatible with all GM LS series engines (LS1, LS2, LS3, LS6, LS7, LS9, LSA, etc.)
  • Works with Chevrolet small block and big block engines that use M12-1.5 coolant ports
  • Fits many GM vehicles including Camaro, Corvette, Silverado, Suburban, GMC Sierra, and more

Common Uses

  • Installing aftermarket coolant temperature gauges
  • Engine swaps requiring a temperature sensor port
  • Custom radiator and cooling system builds
  • Replacing damaged or missing factory sensor adapters
  • Installing a more accurate temperature sensor

Technical Specifications

  • Thread Type (Male): M12-1.5
  • Thread Type (Female): 1/2-inch NPT
  • Material: 6061-T6 Aluminum
  • Color: Silver
  • O-Ring Included: Yes

Frequently Asked Questions

Q: Will this adapter work with an LS3 engine? A: Yes, this adapter is designed for all LS engines including the LS3, as long as the port is M12-1.5.

Q: Does this product include a temperature sensor? A: No, this is an adapter only; a separate 1/2-inch NPT coolant temperature sensor is required.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.

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