Standard Ignition TS-331 Engine Coolant Temperature Sender

Engine Coolant Temperature Sender for Accurate Readings

Standard Ignition TS-331 is an engine coolant temperature sender built for vehicles that rely on a direct signal from the cooling system to the gauge or control circuit. It features a bolt-on attachment, a round male connector, and two male blade terminals for a straightforward electrical connection.

Use this coolant temperature sender when you need a replacement that matches the original connector style and terminal layout. Standard Ignition TS-331 is a practical choice for drivers searching for an engine coolant temperature sender for Subaru and other listed applications.

Key Features

• Engine coolant temperature sender for cooling system temperature signal input
• Bolt-on attachment method for secure mounting
• Round, plug-in male connector with one connector cavity
• Two male blade terminals for the electrical interface
• Direct replacement style for select OE applications
• Standard Ignition TS-331 part number for easy identification

Detailed Product Information

This sender monitors coolant temperature and sends the reading to the vehicle’s gauge or related engine management circuit, depending on application. The connector design, terminal count, and bolt-on mounting style are important for matching the original part during replacement. If you are sourcing a coolant temperature sender for Subaru fitment or comparing TS-331 against other listings, verify the connector shape and terminal configuration before installation. This part cross-references 21203KA000 and WT716 for the same application.

Common Problems This Part Can Address

• Inaccurate or fluctuating coolant temperature gauge readings
• No temperature signal from the sender circuit
• Corroded or damaged sender connector terminals
• Hard-to-match replacement due to connector or terminal differences
• Cooling system warning concerns tied to sender failure

Installation Notes and Tips

Confirm the connector shape, terminal type, and mounting style against the original unit before replacement. Inspect the harness plug and terminals for corrosion or looseness, and verify the sender seats properly at the bolt-on location. After installation, check for stable temperature readings and confirm there are no coolant leaks at the sender interface.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. TS-331 is built to match the specified connector and terminal configuration for the listed application.