Maradyne® MFA120 - Wire Harness with Adjustable Engine Temperature Switch

Maradyne Performance Engine Cooling
Maradyne® - Wire Harness with Adjustable Engine Temperature SwitchMaradyne® - Wire Harness with Adjustable Engine Temperature SwitchMaradyne Authorized Dealer
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Universal Wire Harness with Adjustable Engine Temperature Switch (MFA120) by Maradyne®. This wiring harness kit operates an electric radiator fan depending on engine water temperature. Kit includes heavy gauge wire harness, and adjustable temperature switch. The fan ON temperature is adjustable from 32°F to 240°F, and will go back off when the temperature has dropped approximately 20°F.

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Product Details


  • Includes connectors to connect to fan
  • All wires precrimped
  • ON temperature adjustable from 32°F to 240°F
  • OFF temperature is app. 20°F below ON point
  • Probe installs in radiator core near inlet port

Wiring an electrically-operated fan into your vehicle is simple, with the use of Maradyne’s prewired kits. Start by wiring the lead from the fuseholder to the battery positive directly. This bypasses the vehicle’s electrical system, so you don’t have to decide which fuse has enough extra capacity to power your fans, and then splice into the underhood wiring loom to access that circuit. These harnesses have a connector to mate with the connector on the fan, so all you need to wire next is the thermostat, A/C compressor, or other switch, and a suitable ground connection.

Brand: Maradyne       Part Number: MFA120
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 Fitment This part is universal
Year Make Model Fitment Note
ALL ALL ALL This part is universal
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