Plug and Pins Only - Delphi 2 pin GM style Coolant Temp

Overview

Professional-grade Delphi 2-pin GM style coolant temperature sensor connector for secure, weatherproof connections in performance builds. Essential replacement part for damaged OEM connectors or custom sensor installations on GM platforms and aftermarket conversions. Direct plug-and-play compatibility with most GM coolant temp sensors and Haltech ECU wiring harnesses.

Technical Specifications

• Part Number: HT-030411
• Connector Type: Delphi 2-pin GM style
• Application: Coolant temperature sensor
• Colour: Black
• Construction: Weatherproof automotive-grade housing
• Terminals: Included with connector

Why You Need This

Coolant temperature readings are critical for engine protection and optimal tune calibration, yet corroded or damaged sensor connectors are often overlooked until they cause real problems. Poor connections lead to erratic temperature readings, false knock detection from timing maps running rich, and worst case — engine damage from running lean when the ECU thinks it's cold. This OEM-spec Delphi connector ensures reliable signal integrity whether you're retrofitting aftermarket sensors on an LS swap, replacing damaged connectors on RB or SR20 conversions, or building custom sensor locations for track applications.

The GM 2-pin style has become the de-facto standard for many aftermarket coolant temp sensors due to its robust design and wide availability. Unlike cheap universal connectors that fail under heat cycling, this genuine Delphi unit maintains consistent contact pressure and sealing through thousands of heat cycles. Perfect for turbo builds where underhood temperatures are extreme, or competition applications where sensor reliability is non-negotiable.

ECU & System Compatibility

Compatible with the full Haltech Elite and Nexus range when used with appropriate coolant temperature sensors. Works seamlessly with Haltech's analogue temperature inputs and pre-configured GM sensor calibrations. Contact our technical team to confirm sensor compatibility for your specific ECU model and application requirements.

What's in the Box

• 1x Delphi 2-pin GM style connector housing (black)
• 2x Terminal pins
• Weather sealing components

Complete Your Build

Most customers building GM-based conversions or upgrading sensor harnesses also need compatible coolant temperature sensors and proper crimp tools for professional terminations. Contact our technical team for sensor recommendations and wiring guidance specific to your platform — we stock the complete range of temperature sensors and professional crimping tools here in the UK, with same-day despatch on most orders. Our in-house tuners can also advise on optimal sensor placement and ECU calibration for your specific build requirements.