Standard AC504T Idle Air Control Valve

Idle Air Control Valve for Ford and Mazda

The Standard AC504T idle air control valve is a direct-fit replacement for restoring stable idle control on select Ford and Mazda applications. It is built with durable materials and tested for performance and reliability to support consistent engine idle behavior.

• Direct-fit replacement for easier installation
• 2-terminal electrical connection
• High-quality construction for durability
• Performance-tested for dependable operation
• Compatible with select Ford Ranger, Ford Focus, Mazda B2300, Ford EcoSport, and Mercury Marauder applications

Detailed Product Overview

The Standard AC504T is an idle air control valve used to regulate bypass air at idle so the engine can maintain a steady speed under changing load conditions. This part number, AC504T, is a direct replacement option for vehicles such as the Ford Ranger and Ford Focus, along with select Mazda B2300 and Mercury Marauder applications. It is also cross-referenced to Standard Ignition AC504 for the same application.

Standard manufactures this component with complete process control from production through final testing, helping ensure consistent fit and function across the application range.

Common Symptoms This Part Can Address

• Unstable or fluctuating idle speed
• Engine stalling when coming to a stop
• Idle speed that is too high or too low
• Rough idle after startup or during warm-up
• Idle control issues on Ford Ranger, Ford Focus, or Mazda B2300 applications

Installation Notes and Tips

Fits 2001-2012 Ford Ranger, N/A. Fits 2001-2010 Mazda B2300, N/A. Fits 2003-2007 Ford Focus, N/A. Fits 2004-2007 Ford EcoSport, N/A. Fits 2004 Mercury Marauder, N/A, Auxiliary Air Valve. Verify the 2-terminal connector and mounting style before installation. Hardware is not included.

Quality Assurance

Standard backs this idle air control valve with manufacturing oversight throughout the production process and final performance testing to support reliable operation in service.