Keep idle speed under precise control with the Standard Ignition Idle Air Control Valve (AC20), which regulates the amount of air bypassing the throttle plate at idle. It installs as a direct-fit replacement across a wide range of Ford, Lincoln, and Mercury applications, including the 1986-1989 Ford F-150 [L6-4.9L], 1986-1987 Ford Escort [L4-1.9L], 1985-1992 Ford Ranger, 1986-1995 Ford Taurus, and many more — see the "Vehicles it fits" section for the full list of covered vehicles and engines (L4-1.9L, L4-2.3L, L6-4.9L, V6-2.9L, V6-3.0L, V6-3.8L, V6-4.0L, V8-5.0L, V8-5.8L, V8-7.0L, and V8-7.5L).
- Stepping motor: a high-strength stepping motor with a shielded ball bearing that resists environmental contaminants for extended service life.
- Accurate airflow control: uses a polymer-blended, isotropic neodymium/iron/boron magnet for accurate control of the pintle and airflow.
- Load-tested actuator: tested to deliver a force greater than the actual load for added durability.
- Quality build: an emission component made with high-grade materials, with quality control maintained throughout manufacturing.
Fitted with a two-terminal connector. Signs the IAC may need replacing include a rough, high, or surging idle, stalling at stops, or hard starting; because those symptoms can have other causes, diagnose the fault before replacing. If a failed IAC valve is behind your idle issue, this replaces it. Country of origin: Mexico.
Interchange: 21760 · IAC18 · TV200 · 2-1941 · 21941 · CX1823 · E59E9F715A1C · E59E9F715A1D · E59E9F715AC · E6AE9F715C1B · E6AE9F715CA · E6AZ9F715C · E6ZZ9F715C · E7DE9F715C1A · E8DZ9F715A · E9AE9F715A1A · E9AZ9F715A · E9AZ9F715AA · F0AE9F715A1A · F0AE9F715A2A · F0DE9F715AA · F0DZ9F715A · AC20T. Manufacturer part number AC20.
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
21760, IAC18, TV200, 2-1941, CX1823, E59E9F715A1C, E59E9F715A1D, E59E9F715AC, E6AE9F715C1B, E6AE9F715CA, E6AZ9F715C, E6ZZ9F715C, E7DE9F715C1A, E8DZ9F715A, E9AE9F715A1A, E9AZ9F715A, E9AZ9F715AA, F0AE9F715A1A, F0AE9F715A2A, F0DE9F715AA, F0DZ9F715A, AC20T
Frequently Asked Questions
What does this Idle Air Control Valve do?
It regulates the amount of air that bypasses the throttle plate at idle, controlling engine idle speed when the throttle is closed.
What are the signs my IAC valve may need replacing?
Common signs include a rough, high, or surging idle, stalling at stops, or hard starting. Other components can cause the same symptoms, so diagnose the fault before replacing the valve.
Will this fit my vehicle?
It's a direct-fit replacement for many Ford, Lincoln, and Mercury applications, such as the 1986-1989 Ford F-150 [L6-4.9L] and 1986-1995 Ford Taurus. Check the "Vehicles it fits" section for the full list.
Where is it made and what connector does it use?
Country of origin: Mexico. The valve is fitted with a two-terminal connector.
What part numbers does this valve replace?
It cross-references to numbers including 21760, IAC18, TV200, 2-1941, CX1823, AC20T, and several Ford E-/F-series engineering numbers — see the full Interchange list in the description.
