Holley Tax Return Season Sale Going On Now--Ends February 29th!
No coupon code required--all discounts are already applied.
10% off on many items, including Sniper and Terminator X EFI Systems,
many HyperSpark distributors, MSD Superconductor Spark Plug Wires,
as well as Holley EFI and Terminator X Fuel Injectors!
-20% Auxiliary Harness, J1A/B Connector Inputs/Outputs

On all Holley main harnesses (with the exception of the Terminator main harness) there is an 8-pin Metripak connector that provides access to four configurable inputs and four configurable outputs. This auxiliary harness lets you create a custom sub-harness that will plug directly into that 8-pin metripak. Use this for nearly any sort of remote switch or to control any electronic output, including 12-volt switched, ground-switched, and positive or negative PWM controls.

Not Sure? Review this product documentation before you buy!

Instruction Sheet
Holley J1A/B Input/Output Auxiliary Harness

Harness TypeAuxiliary Harness (Customizable Inputs and Outputs)
Unit of SaleEach

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Auxiliary Harness, J1A/B Connector Inputs/Outputs

  • Views: 14826
  • Brand: Holley EFI
  • Product Code: 558-400
  • Availability: In Stock
  • $110.00
  • $88.52