Product Summary

Universal Fit, 4.75" Overall Length

  • 12 volt
  • 4 3/4" x 3" x 1 1/4"
  • Built-in 30 amp relay
  • Uses your electric temperature gauge as the sending unit to control your cooling fan
  • Installation consists of hooking up 7 wires and then turning a knob on the end of the box to set the on and off temperatures for the fan

Key Specs

MFG. Part #91064023
BrandSpeedway Motors

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Speedway Motors 91064023 Details

This is the slickest thing we've seen in years. This adjustable box simply uses your electric temperature gauge as the sending unit to control your cooling fan. Features a built-in 30 amp relay to provide maximum power to your fan and it comes with a tiny LED lamp to let you know when the fan is running plus a fuselink to protect the wiring between the temperature control unit and the fan.

  • Easy to install and adjust 
  • No radiator tube
  • Uses existing wiring
  • Simple hookup
  • Fully adjustable
  • Driver-controlled temperature
  • A/C compressor switch to automatically turn on fans
  • 30 amp relay inside box
  • Protective fusible link
  • For 12 volt electrical systems
  • Measures 4-3/4" x 3" x 1-1/4"



Each unit comes with a one year manufacturer's warranty.

Centech Wiring, Inc.
2190 Colflesh Road
Perkiomenville, PA 18074
(610) 754-0740

Speedway Motors 91064023 Specifications

MFG. Part #91064023
BrandSpeedway Motors
NotesIncludes fusible link.
Sold in QuantityEach
Amperage30.00 amps
Voltage12.00 volts
Overall Length4.75"
Overall Height1.37"
Overall Width3.00"
Wire Length140.00"