Standard Ignition TS-355 Engine Coolant Temperature Sender - Left

Engine Coolant Temperature Sender Overview

The Standard Ignition TS-355 engine coolant temperature sender is built for accurate temperature signaling in vehicles that use a dash warning light or gauge-based cooling system. It uses a bolt-on, male round connector design with a 3/8-18 NPT thread for a secure electrical and mechanical connection.

Fits 1994-1997 Ford F-250, left; Fits 1994-1997 Ford F-350, left; Fits 1997 Ford F-250 HD, left; Fits 1995-1998 Ford E-350 Econoline, N/A; Fits 1995-1998 Ford E-350 Econoline Club Wagon, N/A.

Key Features

• Standard Ignition TS-355 engine coolant temperature sender
• Bolt-on attachment method with a single male round connector
• 3/8-18 NPT thread size for the specified application
• Factory-calibrated and tested for switch actuation at the target temperature
• Uses a formed bimetal contact arm for precise electrical switching
• Built with high-grade materials for service use

Detailed Description

This coolant temperature sender is engineered to transfer the temperature signal needed for the dash indicator light or gauge system on select Ford trucks and vans. Standard Ignition TS-355 uses a thermal switching design with calibrated actuation points, helping the cooling system report temperature changes consistently. It is a direct-fit style replacement for applications calling for a 3/8-18 threaded sender with a bolt-on electrical connection.

This part cross-references Standard Motor Products (e.g., TS6698) for the same application.

Common Uses

• Restoring a non-working coolant temperature warning light
• Addressing inaccurate or intermittent temperature signal output
• Replacing a worn sender on Ford E-350 Econoline and E-350 Econoline Club Wagon models
• Replacing a sender on Ford F-250, F-250 HD, and F-350 applications with gauge systems
• Correcting temperature indication issues caused by failed thermal contacts

Installation Notes

Verify the connector style, thread size, and vehicle configuration before installation. This part uses a male connector with a stud terminal and a 3/8-18 NPT thread, so the mating harness and port must match the listed specifications. On the Ford F-250, F-250 HD, and F-350 applications, confirm the left-side/front-of-engine configuration and gauge setup; on the E-350 Econoline and E-350 Econoline Club Wagon, confirm the dashboard coolant temperature indicator light application.

Quality Assurance

Standard Ignition states that each thermal switch is calibrated and tested to confirm actuation at the specified temperature. The brand also notes controlled manufacturing from component selection through finished product, with design and production methods aimed at consistent electrical contact performance.