A-Premium Idle Air Control Valve — 4-Pin Plug Direct-Fit Replacement with OEM Match and One-Year Warranty

The A-Premium Fuel Injection Idle Air Control Valve with a 4-pin plug regulates idle airflow for compatible GM, Land Rover, Jaguar, Isuzu, and other vehicles to restore smooth idling and stable engine RPMs.

This engineered replacement idle air control (IAC) valve fits many domestic and import vehicles and is designed to match original equipment function and plug configuration. Precision-machined components, exact electrical connectors, and a direct-fit mounting pattern make installation straightforward for routine maintenance or repair. Backed by a one-year unlimited-mileage warranty, this A-Premium unit aims to deliver reliable idle control and consistent engine performance when a worn or faulty IAC valve causes rough idle, stalling, or fluctuating RPMs.

Which vehicles will this A-Premium idle air control valve fit?

The A-Premium IAC valve is compatible with a broad range of models across Chevrolet, GMC, Buick, Cadillac, Oldsmobile, Pontiac, Isuzu, Jaguar, Land Rover, and AM General Hummer platforms. Fitment covers SUVs, trucks, sedans, and performance cars from multiple years—check reference numbers against your OEM part for confirmation.

• Chevrolet: Astro, Blazer, Camaro, Corvette, Impala, Tahoe, Suburban, and more.
• GMC: Jimmy, Sierra variants, Savana/Safari, Yukon, and heavy-duty models.
• Buick/Cadillac/Oldsmobile/Pontiac: Various sedans and luxury models including LeSabre, Fleetwood, and Bonneville.
• Imports: Isuzu trucks and SUVs, Jaguar XJ6/Vanden Plas, Land Rover Defender/Discovery/Range Rover.
• Reference numbers: AC1, ERR5199, ETC6660, 217437, 1711286, 17079256, 17111286, and related OEM codes.

How does this 4-pin IAC valve improve idle quality?

By precisely controlling the bypass airflow around the throttle plate, the valve helps maintain steady idle speed under changing engine loads and accessory use. Replacing a failing IAC valve can reduce rough idling, minimize stalling at low speed, and improve cold-start stability without altering engine tuning.

• Operates as an electrical actuator that meters idle airflow for stable RPM control.
• Direct-fit 4-pin plug matches wiring harness for simple swap-in replacement.
• Durable internal components resist heat and carbon buildup for longer service life.
• One-year unlimited-mileage warranty supports confident use after installation.

What should I expect during installation and maintenance?

Installation is typically a bolt-on procedure at the throttle body or intake manifold location; basic hand tools and a short block-off time are usually sufficient. Inspect the gasket or O-ring surfaces and the electrical connector for corrosion or damage before mounting. If your vehicle has stored idle-related fault codes, clear them after replacement and verify idle behavior during a short test drive.

• Mounts to the throttle body/intake with matching bolt pattern and sealing surface.
• Requires verifying the 4-pin electrical connector pins are clean and undamaged.
• After installation, clear any diagnostic trouble codes and perform an idle relearn if needed.
• Regular intake cleaning helps prolong IAC life by reducing carbon deposits.

What exactly comes with the A-Premium IAC valve and what warranty applies?

The package includes the A-Premium idle air control valve configured with a 4-pin plug and the mounting interface ready for installation; additional hardware requirements depend on your vehicle. A-Premium provides a one-year unlimited-mileage guarantee on workmanship and materials to give added assurance for routine replacement needs.

• Complete IAC valve assembled with 4-pin electrical connector.
• Check compatibility using OEM reference numbers included in product listing.
• One-year unlimited-mileage warranty from A-Premium for peace of mind.

Who this is for: Technicians, DIY mechanics, and owners of compatible Chevrolet, GMC, Buick, Cadillac, Pontiac, Oldsmobile, Isuzu, Jaguar, Land Rover, and AM General Hummer vehicles who need a cost-effective, direct-fit replacement IAC valve. If your engine idles inconsistently, stalls, or throws idle-related fault codes and your vehicle matches the listed fitment or reference numbers, this A-Premium 4-pin idle air control valve is built to restore predictable idle performance with an easy installation and manufacturer backing.