Maradyne® MFA102 - Wire Harness with Engine 185 Degree Temperature Switch and Relay

Maradyne Performance Engine Cooling
Maradyne® - Wire Harness with Engine 185 Degree Temperature Switch and RelayMaradyne® - Wire Harness with Engine 185 Degree Temperature Switch and RelayMaradyne Authorized Dealer
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Universal Fit
Fitment Notes:
  • Not Vehicle Specific
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Product Details

Universal Wire Harness with Engine 185 Degree Temperature Switch and Relay (MFA102) by Maradyne®. This kit operates an electric radiator fan according to engine water temperature. Kit includes heavy gauge wire harness, relay, weatherproof fuse, electrical connectors and 185°F temperature switch. This temperature is recommended for older, carbureted cars.



  • 185°F ON, 170°F OFF
  • Includes connectors to connect to fan
  • Inline fuseholder and fuse
  • All connectors precrimped
  • Normally open switch grounds at set temperature

Screw the brass sender into a tapped 3/8 NPT port on your intake manifold, thermostat housing or anywhere on your engine that has coolant inside. This sender will turn on a relay, which in turn activates your electric fan. This particular sender has a 185°F ON temperature, 170°F OFF. Using a relay lets you power the high-current fan directly from the battery, instead of trying to find a fused circuit with enough extra capacity to run the fan and splice into it.

Brand: Maradyne       Part Number: MFA102
paypal credit Maradyne High Performance Fans

Maradyne® High Performance Fans is a brand name owned by Cleveland OH-based DCM Manufacturing, Inc., a wholly owned subsidiary of Dreison International, Inc., which manufactures and sells air movement and air directional accessories and components serving the High Performance, Off-Road Equipment, Agricultural Machinery, Heavy Duty Truck, Automotive, Bus, RV and Marine and Military markets. Their other brands include SuperTrapp mufflers, Pow-R-Quik starters, Turbo air precleaners, and Air-O-Matic power steering, among others. Family-owned by the Bergers since 1976, the philosophy to produce and distribute a quality product at a fair price backed up with service, is a family tradition that ensures continual growth.

Vehicle FitmentThis part is universal
Year Make Model Fitment Notes
ALL ALL ALL     This part is universal
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