Stage IV HD Load Center - 21 Fuse 14 Relay

  • Sale
  • Regular price $524.95

Simple yet versatile and durable relay centers now available! Capable of handling the largest pumps and fans for long duty cycles.

  • Base footprint of 7.5" x 6"
  • 3.5" overall height with relays installed

The relays can be tied to a conventional switch panel, or controlled by outputs from your EFI system.


  • 40A ISO relays on fused circuits
  • Isolated power feed to ignition relay for "clean" power input
  • 2x "clean" switched ignition fuse circuits for ecu, logger, dash, ignition controller, etc.
  • Constant hot switch panel feed circuit, 10A
  • 2x constant hot auxiliary fused circuit, 15A max
  • 12" Deutsch-terminated input lead
  • 3' heavy power input lead with 5/16" lug
  • 10' flying leads for all fuse / relay outputs


  • Configurable for a variety of engine management combinations.
  • For EFI cars - Injector & fuel pump relays (per config) activated together by ECU fuel pump output.
  • For carbureted cars - Fuel pump relay can be controlled by ignition switch at switch panel.
  • HELLA solid state relays available for fast acting / PWM control.
  • Auxiliary relays can be either 12v positive or negative ground triggered (select above).

      What's in the Box

      • Relay block w/ fuses & relays installed
      • Mounting kit
      • Mating connector kit for input lead(s)
      • Kit of assorted heat shrink, splices and terminals