Standard Ignition TS-15 Engine Coolant Temperature Sender

Engine Coolant Temperature Sender for Classic GM and Chrysler Applications

Standard Ignition TS-15 is an engine coolant temperature sender built for vehicles that use a dashboard coolant temperature indicator light. It uses a calibrated thermal design with factory-tested switch actuation for consistent electrical signaling at the specified temperature point.

With a male connector, male blade terminals, and a 2-terminal layout, this sender is a direct-fit style solution for many classic Chrysler, Dodge, Buick, Chevrolet, GMC, Oldsmobile, and Pontiac applications. Standard Ignition TS-15 is also cross-referenced to DENSO Auto Parts 221-0514 and Four Seasons 57106 for the same application.

Key Features

• Engine coolant temperature sender for indicator-light applications
• Male connector and male blade terminals
• 2-terminal design for straightforward electrical connection
• Factory-calibrated and tested for specified switch actuation temperature
• Thermal switch design uses wax and bimetallic contact movement for precise operation
• Standard Ignition TS-15 part number for easy identification

Detailed Description

Standard Ignition TS-15 is engineered for vehicles that rely on a coolant temperature sender to trigger a dash warning light. The internal thermal design uses calibrated wax expansion and a formed bimetal contact arm to create a precise snap-action electrical signal at the target temperature. That controlled actuation helps maintain accurate temperature warning performance in older vehicle electrical systems.

This part is listed across a wide range of classic fitments, including 1964-1973 Chrysler Imperial, 1964-1971 Chrysler 300, 1970-1972 Dodge Challenger, 1967-1970 Pontiac Firebird, 1964-1970 Pontiac GTO, and 1962-1965 Chevrolet Impala. It also appears in applications such as 1967-1968 Buick Riviera and 1966 Chevrolet Bel Air with a coolant temperature indicator light on the dashboard. Standard Ignition TS-15 is a practical choice when servicing original-style warning light systems on Chrysler, Dodge, Buick, Chevrolet, GMC, Oldsmobile, and Pontiac vehicles.

What This Part Helps Address

• Inoperative or inaccurate coolant temperature warning light
• Delayed electrical signal to the fan controller or indicator circuit
• Intermittent temperature warning operation caused by worn sender contacts
• Incorrect temperature switch actuation from a failed thermal sender
• Restoration of original-style dash light function on classic vehicles

Installation Notes and Tips

Verify the vehicle uses a coolant temperature indicator light, since this sender is specified for light-based applications rather than gauge-only setups. Confirm connector style, terminal type, and thread/application match before installation. On listed fitments, the sender may be located in the intake manifold, depending on the vehicle and engine configuration.

For best results, inspect the connector for corrosion and ensure the mating terminals are clean and secure. Standard Ignition TS-15 should be installed on the correct engine temperature port for the application, then checked for proper warning-light operation after startup and warm-up.

Quality Assurance

Standard Ignition manufactures this sender with complete quality control from component selection through finished product testing. Each unit is calibrated and tested to confirm switch actuation at its specified temperature, supporting consistent performance in service.