Dorman 911-128 Vacuum Switching Valve

Vacuum Switching Valve for Ford and Mercury

This Dorman vacuum switching valve is a direct replacement for the original unit on select Ford, Mercury, and Lincoln vehicles. Part number 911-128 uses a factory-style connector for plug-and-play installation and is built with a plastic housing and 2-port design.

Key Features

• Direct replacement vacuum switching valve for emission control vacuum routing
• Factory-style connector supports straightforward electrical connection
• Plastic construction with 2 ports
• Fits a wide range of Ford Ranger, Escape, Taurus, Mustang, and related applications
• Cross-references Dorman 911-128 for the same application

Detailed Description

Dorman 911-128 is a replacement vacuum switching valve made to match the fit and function of the original part on specified vehicles. It is used in emission control vacuum systems to route vacuum signals as required by the vehicle’s control strategy. This part number 911-128 is a practical choice for owners servicing Ford Ranger, Ford Escape, and Mercury Mariner applications, along with many other Ford, Mercury, and Lincoln models listed below.

Compatible With 1996-2000 Ford Contour, 1996-2000 Mercury Mystique, 1998-2004 Ford Mustang, 2000-2005 Mercury Sable, 2000-2007 Ford Taurus, 2001-2008 Ford Escape, 2001-2005 Ford Explorer Sport Trac, 2001-2003 Ford Explorer, 2001-2003 Mercury Mountaineer, 2000-2002 Lincoln LS, 2004-2011 Ford Ranger, and additional listed applications. This vacuum switching valve supports direct replacement service where the original valve has failed or no longer responds correctly.

Common Issues This Part Can Address

• Vacuum routing faults in the emission control system
• Check engine light related to vacuum switching valve operation
• Rough idle or drivability concerns tied to incorrect vacuum control
• Failed emissions inspection caused by vacuum system malfunction
• Loss of proper EGR or vacuum-actuated system response

Installation Notes and Tips

Verify connector style, port count, and vehicle application before installation. The factory-style connector supports plug-and-play installation on listed vehicles, and the 2-port layout should match the original valve configuration. Confirm the part number 911-128 against the existing component and vehicle service information for the exact application.

Quality Assurance

This Dorman replacement is built to match original fit and function for specified vehicles. It is intended for direct replacement service on the listed Ford, Mercury, and Lincoln applications.