Powered by Mustang Enthusiasts - Call Now (866) 507-3786

1986-93 Ford Mustang 5.0 5.8 Idle Air Control (IAC) Adjuster - Fox Body by Ford

Overview   |  Benefits   |  Features   |  In the Box   |  Description   |  Reviews
Mustang Idle Air Control (IAC) Adjuster (86-93) 5.0 5.8

Having trouble getting the idle of your 1986-93 Ford Mustang 5.0/5.8L where it needs to be? check out this Idle Air Control Adjuster!

Item# LRS-9939A

Everyday Low Price: $56.99

In Stock!  


  • Allows Easy Adjustment Of Idle
  • Smoother Operation For Modified Engines


  • Aluminum Construction
  • Easy Installation
  • Includes New Gaskets And Hardware
  • Fits 1986-93 Ford Mustang 5.0/5.8L

What's in the Box

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

Product Description

This will put you one step closer to solving your idle problems! It is a must for modified 1986-93 Ford Mustangs! 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.

Customer Reviews

5 out of 5 stars - based on 1 reviews

  great fit and easy adjustment
By on 4/16/2014
Allowed me to adjust air flow with ease. My car is supercharged so finding something that allows me to do this easier is always a good thing. Quick install, affordable and made by well known 5.0 parts manufacturer.

Yes, I would recommend this item to a friend!

Was this review helpful to you?

Vehicle Applications

Ford Mustang - 1986 (86) - 1987 (87) - 1988 (88) - 1989 (89) - 1990 (90) - 1991 (91) - 1992 (92) - 1993 (93)

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!

Look for Similar Items by Category

Mustang Parts » Mustang Engine & Underhood » Mustang Emissions & Sensors » Mustang Idle Air Control Motors (IAC)
1979-1993 Mustang Parts » 1979-1993 Mustang Engine Parts » 1979-1993 Mustang Emission & Engine Sensors » 1979-1993 Mustang Idle Air Control Motors (IAC)

Products by Vehicle