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Holley EFI 558-118 - Ford MFPI Coil On Plug Main Harness:

Ford MFPI Coil On Plug Main Harness:

This harness provides a plug and play upgrade solution for those seeking to convert to Coil-On-Plug. Additionally we have pre-installed a Power Tap for easy access to 12v, 5v Reference, and Sensor Grounds. The Ford MPFI C-O-P Main Harness has also been pre-terminated for the stock Pulse Width Modulated Idle Air Control motors commonly found on Fuel Injected Windsor 5.0L engines.
Availability: Call to check stock.
Shipping: Free Shipping* On Orders Over $99!
Pricing: $478.95

Free U.S. Continental Shipping


Built in C-O-P Harness
Additional 40 amp relay to power individual coils
Pre-Terminated for Ford PWM IAC
20awq gauge wire or larger!
Plug and play with 558-312 or 558-318 Smart Coil Sub Harnesses
Dual CANbus Connectors for multiple CAN devices
Multiple sensor lengths have been extended to accommodate various intake designs

California Proposition 65

California Prop 65WARNING: Cancer & Reproductive Harm -


  • 558-118
  • 558-118
  • 090127002582
  • Holley EFI
  • Call to check stock.
  • New


Shipping Information

  • Item Requires Shipping
  • 5.0 lbs.
  • W4.0000” x H11.0000” x L10.5000”
  • Free U.S. Continental Shipping
  • Free Shipping* On Orders Over $99!

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