Standard Ignition TS-54 Engine Coolant Temperature Sender

Engine Coolant Temperature Sender for OE-Style Cooling Control

Standard Ignition TS-54 is an engine coolant temperature sender built for vehicles that use a temperature-actuated electrical signal to control the fan circuit. It uses a formed bimetal contact arm and factory-calibrated actuation points to deliver precise switching performance in service applications.

Compatible With 1975-1978 Chevrolet and GMC truck and car applications, including Chevrolet C10, C20, C30, G10, G20, G30, K10, K20, K30, El Camino, Malibu, Nova, Pontiac Firebird, and Pontiac LeMans where the listed sender style is used.

Key Features

• Engine coolant temperature sender with snap-action electrical contact
• Male connector gender and male blade terminal
• 1/2"-14 NPT thread size for listed applications
• Factory-calibrated and tested for specified switch actuation temperature
• Formed bimetallic contact arm for precise thermal response
• Built with robust materials for professional service use

Detailed Product Overview

TS-54 is designed for cooling-system temperature signaling in older GM applications that rely on a threaded sender to trigger a fan controller or temperature warning circuit. Standard Ignition uses custom wax formulations and calibrated thermal elements to control actuation at the specified lower-temperature set point, while production testing verifies electrical contact at the intended temperature. This part cross-references Standard Ignition applications such as 1T1088 and TS6630 for the same application.

For fitment-based searches, this part is commonly selected for a 1976 Chevrolet Nova metal temp sender with light, a 1977 Chevrolet Malibu engine coolant temperature sender with light, or a 1978 GMC Jimmy metal engine coolant temperature sender with light. It also appears in Chevrolet C10, C20, and K-series truck applications from the listed years.

Common Problems This Part Can Address

• Temperature warning light that does not trigger at the correct point
• Cooling fan control signal that is inconsistent or delayed
• Sender failure caused by age, heat cycling, or internal contact wear
• Incorrect temperature reporting in sender-based cooling circuits
• Electrical connection issues at the threaded sender terminal

Installation Notes and Tips

Verify the thread size, connector style, and terminal configuration before installation. TS-54 uses a 1/2"-14 NPT thread, a male connector, and a single male blade terminal, so the vehicle harness and sender port must match those specifications. Confirm the application notes for your Chevrolet or GMC model, especially where the listing specifies a metal engine coolant temperature sender with light.

Quality Assurance

Standard Ignition manufactures this sender with in-process quality control from component selection through final assembly. Each unit is calibrated and tested to confirm switch actuation at the specified temperature, supporting consistent performance in service.