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 Buyer's Guide tab 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).
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.
This part cross-references / interchanges with the following part numbers:
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 Buyer's Guide tab 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.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
