Standard Ignition TS-238 Engine Cooling Fan Switch

Engine Cooling Fan Switch for Precise Temperature Control

Standard Ignition TS-238 is an engine cooling fan switch built with a formed bimetal contact arm and calibrated thermal actuation. It uses a male 3-terminal blade connector and a brass finish to support reliable electrical contact in demanding cooling-system service.

Key Features

• Engine cooling fan switch for temperature-based fan control
• Formed bimetallic contact arm for snap-action switching
• Factory-calibrated and tested for specified actuation temperature
• Male connector with 3 blade terminals
• Black and white housing with brass finish
• Standard Ignition TS-238 for OE-style cooling system service

Detailed Description

Standard Ignition TS-238 is engineered for vehicles that rely on a thermal switch to signal the fan controller when coolant temperature reaches the calibrated set point. The internal wax and bimetal design responds to heat with controlled electrical contact movement, helping maintain consistent fan operation in applications such as Dodge Ram and Chrysler cooling-system service. This part number TS-238 is built with production calibration and testing to confirm switch actuation at the specified lower-temperature threshold.

This part cross-references 1S4414 and FS124 for the same application.

What It Helps Fix

• Cooling fan that does not switch on at the proper temperature
• Fan cycling problems caused by a worn thermal switch
• Overheating concerns tied to delayed fan activation
• Intermittent electrical contact at the fan control circuit
• Temperature signal issues in the cooling fan control system

Installation Notes and Tips

Verify connector style, terminal count, and temperature specification before installation. Confirm the mating harness uses a male 3-blade connection and inspect the cooling system for related faults such as damaged wiring, low coolant, or a failed fan controller. For fitment-based searches, this part is commonly referenced for Dodge Ram and Chrysler cooling fan switch applications, including Standard Ignition TS-238 replacement searches.

Quality Assurance

Standard Ignition manufactures this switch with controlled materials, calibrated thermal elements, and end-of-line testing to confirm actuation at the specified temperature. The design and production process are managed under OE-focused quality control from component selection through finished product inspection.