HomeBelts and Cooling > SwitchesStandard Ignition TS-158 Engine Cooling Fan Switch
Part #: TS-158

Standard Ignition TS-158 Engine Cooling Fan Switch

⚙️ 22 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mercury, and Merkur, Tempo, Topaz, XR4Ti, and Scorpio
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Engine Cooling Fan Switch for Ford Tempo and Mercury Topaz

The Standard Ignition TS-158 Engine Cooling Fan Switch is designed to maintain optimal engine temperature by controlling the cooling fan operation. Specifically engineered for Ford Tempo and Mercury Topaz models, this switch ensures precise fan activation to prevent overheating.

Key Features of the Standard Ignition TS-158 Fan Switch

  • Color: Gold and gray for easy identification and corrosion resistance
  • Connector Gender: Female, compatible with factory wiring harnesses
  • Finish: Durable dichromate coating combined with plastic components for longevity
  • Terminal Quantity: 2 terminals to support reliable electrical connections
  • Terminal Type: Blade terminals for secure and straightforward installation

Detailed Description of the TS-158 Engine Cooling Fan Switch

This engine cooling fan switch from Standard Ignition is built to meet OEM specifications for Ford Tempo and Mercury Topaz vehicles. The gold and gray color coding helps technicians quickly identify the part during maintenance. Featuring a dichromate finish, the switch resists corrosion and wear, extending its service life. The female connector design with two blade terminals ensures a secure electrical connection, facilitating consistent fan operation. This switch plays a critical role in regulating the engine cooling fan, activating it when the engine reaches a specific temperature to maintain efficient cooling.

Common Applications and Issues Addressed

  • Prevents engine overheating by activating the cooling fan at the correct temperature
  • Resolves intermittent fan operation caused by faulty or worn switches
  • Eliminates electrical connection issues with reliable blade terminals
  • Restores proper cooling system function in Ford Tempo and Mercury Topaz models
  • Helps maintain engine performance and prevents potential damage from overheating

Installation Notes and Tips

  • Ensure the vehicle is cool before attempting installation to avoid burns
  • Disconnect the battery to prevent electrical shorts during replacement
  • Verify the female connector and blade terminals match the vehicle’s wiring harness
  • Use appropriate tools to avoid damaging the switch or connectors
  • Test the cooling fan operation after installation to confirm proper function

Quality Assurance and Warranty Information

Standard Ignition manufactures the TS-158 Engine Cooling Fan Switch to meet strict quality standards, ensuring reliable performance in Ford Tempo and Mercury Topaz vehicles. The part undergoes rigorous testing for durability and electrical integrity. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.

BrandStandard Ignition
Part NumberTS-158
ColorGold, Gray
Connector GenderFemale
FinishDichromate, Plastic
Terminal TypeBlade

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1994FordTempo2.3LL4N/A
1994MercuryTopaz2.3LL4N/A
1993FordTempo2.3LL4N/A
1993MercuryTopaz2.3LL4N/A
1992FordTempo2.3LL4N/A
1992MercuryTopaz2.3LL4N/A
1991FordTempo2.3LL4N/A
1991MercuryTopaz2.3LL4N/A
1990FordTempo2.3LL4N/A
1990MercuryTopaz2.3LL4N/A
1989FordTempo2.3LL4N/A
1989MercuryTopaz2.3LL4N/A
1988FordTempo2.3LL4N/A
1988MercuryTopaz2.3LL4N/A
1987FordTempo2.3LL4N/A
1987MercuryTopaz2.3LL4N/A
1986FordTempo2.3LL4N/A
1986MercuryTopaz2.3LL4N/A
1985FordTempo2.3LL4N/A
1985MercuryTopaz2.3LL4N/A
1984FordTempo2.3LL4N/A
1984MercuryTopaz2.3LL4N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

15-50390190210331S43732-8582200124-19425176153-138347528582E43F8B607AAFS103FS103SBMT0486RF128TFS14

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.