Standard Ignition TS-109 Engine Coolant Temperature Sender

Engine Coolant Temperature Sender Overview

Standard Ignition TS-109 is an engine coolant temperature sender built for vehicles that rely on a threaded, bolt-on temperature signal unit. It uses a female square plug-in connector with a single male blade terminal and an M16-1.50 thread size for direct replacement service.

Compatible With select vehicle applications that use this connector and thread configuration, including Buick, Chevrolet, and GMC models where the coolant temperature sender is specified by the OE-style electrical interface.

Key Features

• Engine coolant temperature sender for cooling system signal input
• Bolt-on attachment method for secure mounting
• Female square connector with plug-in connection
• Single male blade terminal for the electrical circuit
• M16-1.50 thread size for matching threaded ports
• Standard Ignition TS-109 replacement part number

Detailed Description

The Standard Ignition TS-109 is designed for applications that require an engine coolant temperature sender with a square female connector and one blade-style terminal. Its bolt-on design and M16-1.50 thread size make it a direct-fit style service part for vehicles using this sender configuration. If you are replacing a faulty coolant temperature sender on a Buick, Chevrolet, or GMC platform, TS-109 provides the correct electrical and threaded interface for the cooling system circuit.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Part Can Address

• Erratic or inaccurate coolant temperature readings
• Temperature gauge behavior that does not match engine conditions
• Cooling system warning light concerns tied to sender signal loss
• Hard starting or drivability issues caused by incorrect temperature input
• Replacement needs after corrosion or connector wear at the sender

Installation Notes and Tips

Confirm the connector shape, terminal style, and thread size before installation. Match the sender to the vehicle’s original coolant temperature sender location and verify the electrical plug seats fully on the square female connector. Use the correct service procedure for the cooling system and inspect the threaded port for damage or contamination before installing Standard Ignition TS-109.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management service parts. TS-109 is built to match the specified connector and thread configuration for the listed application type, supporting a proper replacement when the original sender has failed.