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1986-1993 Mustang 5.0 Idle Air Control (IAC) Adjuster - EFI by Ford

1986-1993 Mustang 5.0 Idle Air Control (IAC) Adjuster - EFI

This Ford Original Idle Air Control Adjuster is a great start to solving your 1986-1993 Fox Body Mustang 5.0 idling issues!

Item #LRS-9939F
MPN# F2PZ-9F939-A

Everyday Low Price: $95.99

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  • Ford Mustang - 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993
  • Engines: 5.0,


  • Easy Installation
  • Ford Original Part
  • Easy Idle Adjustment


  • Brand New Gaskets
  • Aluminum Construction
  • Longer Hardware Included

 What's in the Box

  • (1) Adjustment Plate
  • (2) Gaskets
  • (2) Bolts

1986-1993 Mustang Idle Air Control (IAC) Adjuster - EFI - 5.0

A Ford Original idle air control adjuster will put you one step closer to solving your 1986-1993 Mustang 5.0 engines' idle problems! This thin, adjustable aluminum plate fits between the throttle body and the idle air control motor. It allows you to adjust the flow of air in and out of the idle air control motor for better control of your Mustang’s idle speed. The idle air control adjuster plate was originally engineered by Ford to combat carbon buildup in the throttle body that restricted airflow and created low idle concerns. Ford's plate allows more air in to maintain a steady idle. Made from billet aluminum construction with threaded inserts allows, the needlepoint adjusters are precisely fine-tuned. Coming with brand new gaskets and the required longer IAC bolts to make for a quick and easy installation. The hot rod community quickly picked up on this part to help stabilize and achieve idle control on Fox Bodies with camshafts and larger displacement engines. It is a must for a modified 1986-1993 5.0 EFI-equipped Mustang to help with idling issues!

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About This Brand

Ford Motor Company Genuine Parts, Motorcraft® Parts and Ford and Motorcraft Remanufactured Parts are all excellent choices when it comes to performance, longevity and value for your Mustang or SVT Lightning. And they’re all backed by a Ford Motor Company limited parts warranty*, so you know their parts you use are going to perform like they should. Put the same parts on your Lighting & Mustang that came from the factory!
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