Standard Ignition TS-338 Engine Coolant Temperature Sender

Engine Coolant Temperature Sender for BMW Gauges

Standard Ignition TS-338 is an engine coolant temperature sender built for BMW applications with gauge-equipped engines. It uses a bolt-on attachment method and a single female plug-in connector with a square shape, plus one male blade terminal for straightforward electrical connection.

Use this coolant temperature sender when you need a direct replacement for BMW 325i, 325is, 318i, 318is, 325iX, M3, 525i, 535i, 528e, 535is, 325e, or 325es applications that rely on a gauge signal. The Standard Ignition TS-338 is also cross-referenced to PowerStop 17-1384 for the same application.

Key Features

• Engine coolant temperature sender for gauge-equipped BMW engines
• Bolt-on attachment method for secure mounting
• 1 female square plug-in connector
• 1 male blade terminal
• Direct-fit replacement under Standard Ignition part number TS-338

Detailed Description

Standard Ignition TS-338 is an engine coolant temperature sender used to report coolant temperature to the vehicle gauge system. It is built with a bolt-on mounting style, a square female connector, and a single male blade terminal to match the electrical interface used on the listed BMW applications. If you are replacing a faulty BMW coolant temp sender on a 325i, 325is, or M3, this part supports the gauge circuit used in those vehicles.

This part cross-references PowerStop 17-1384 for the same application. Standard Ignition TS-338 is a practical replacement choice for BMW 3 Series and 5 Series models from the mid-1980s through the mid-1990s that are equipped with gauges.

Common Problems This Part Can Address

• Inaccurate or erratic coolant temperature gauge readings
• Gauge needle staying low, high, or not responding
• Failed sender signal to the instrument cluster
• Corrosion or wear at the sender connection point
• Replacement needs during cooling system service on BMW gauge-equipped engines

Installation Notes and Tips

• Confirm the vehicle is listed with gauges before ordering.
• Match the connector shape and terminal style to the original sender.
• Inspect the connector and wiring for corrosion or looseness before installation.
• Verify the sender location and thread/mounting style against the original part before removal.

Quality Assurance

Standard Ignition TS-338 is a cataloged replacement part from Standard Ignition, a recognized aftermarket brand for electrical and engine management components. Fitment is listed for BMW 325i, 325is, 318i, 318is, 325iX, M3, 525i, 535i, 528e, 535is, 325e, and 325es models with gauges.