Ford Performance Fuel Injection Retrofit Harness by Ford Performance

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  • Ford Racing 5.0L Fuel Injection Retrofit Harness, M-12071-A50
Ford Racing 5.0L Fuel Injection Retrofit Harness, M-12071-A50

Use this Ford Performance fuel injection retrofit harness to help install a 5.0 into your project car!

Item #M12071A50
MPN# M-12071-A50

Everyday Low Price: $599.99

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  • Easier Install Than Most Other Harnesses


  • Direct Fit For 1986-95 5.0L H.O. Engines
  • Not a Mustang replacement harness
  • Does not Fit Mustang
  • Includes Fuse & Relay Boxes
  • Single Harness Design
  • Great for retrofit swaps!

What's in the Box

  • (1) MultiPort Efi Harness
  • Installation Instructions

Made in the USA

Product Description

* * * Must Use Stock 89-93 Mustang Mass-Air Computer! Harness is not Mustang Specific & is not a direct replacement for Mustang harnesses! Repeat, this harness will not replace a single harness on your Mustang. It is intended as a stand alone harness for street rod or engine swap applications. * *

Complete Harness from PCM to Injectors! Our technical support staff travels the country to dozens of various events and takes thousands of phone calls every year. One of the most common requests regarding the Electronic Fuel Injection Wiring Harness has come from Performance Enthusiasts requesting a cleaner appearing harness and a simpler method to make connections. YOUR VOICE HAS BEEN HEARD!

Ford Racing is committed to customer satisfaction and to meeting the demands and requests of its customers. We have tried to be as thorough as possible in developing a product which will provide you with the cleanest and simplest wiring harness on the market.

Some of the many features of the MultiPort EFI Wiring Harness include:
- Revised for simplified installation; Uses a single connector for all required connections
- Kit consists of a single harness with integral connections for injectors and O2 sensors
- Fully loomed, from PCM to all sensors and injectors, to save time on installation
- Typical installation takes less than 1 hour
- Direct fit on 1986-1993 302 H.O. engines
- Can be easily adapted to many other Ford V8 pushrod engines
- Requires PCM (not included) from 1989-1993 Mustang 5.0L H.O.
- Compatible with engines using both H.O. and non-H.O. firing orders
- Provisions for electric fan control output
- Kit includes compact fuse and relay box, "Check Engine" light, and all necessary grommets

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About This Brand

Ford Performance
Ford Performance - Mustang Ford Racing Parts
Ford Performance Parts is the leader in performance parts and accessories for Mustang and Ford Lightning. is proud to offer Ford Racing Performance Parts for your project. Ford Racing is dedicated to manufacturing the highest quality products offered in the industry. Choose from suspension, exhaust, wheels, and other performance parts at If you want the best for your Mustang or SVT Ligtning, look no further than Ford Performance Parts!

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