Dorman 667-420 Vacuum Harness

Overview of Dorman 667-420 Vacuum Harness

The Dorman 667-420 vacuum harness is designed for emission control systems in select Ford and Lincoln vehicles. This 23-inch harness features a durable plastic construction with a black square connector and male blade terminal, ensuring reliable vacuum system connectivity.

• Length: 23 inches for precise fitment
• Wire gauge measurement: 4.6 for optimal electrical performance
• Connector color and housing: Black for corrosion resistance
• Connector shape: Square with male blade terminal
• Wire quantity: 3 wires for efficient vacuum signal transmission
• Standard replacement grade for dependable operation

Detailed Product Description

The Dorman 667-420 vacuum harness is engineered to meet the specifications required for emission control vacuum systems in Ford Escape, Focus, Fusion, Lincoln MKC, MKT, MKZ, and Taurus models. Its 23-inch length and 4.6 wire gauge measurement provide the necessary electrical and vacuum flow characteristics. The harness includes a single male blade terminal housed in a black plastic square connector, designed to withstand typical engine bay conditions. This standard replacement part ensures compatibility and performance consistent with original equipment.

Common Applications and Issues Addressed

• Replacement of damaged or worn vacuum harnesses in Ford and Lincoln emission control systems
• Resolving vacuum leaks that cause engine performance issues or emission failures
• Restoring proper vacuum signal transmission to emission control components
• Addressing connector corrosion or terminal damage in vacuum harness assemblies
• Maintaining compliance with emission standards by ensuring system integrity

Installation Notes and Tips

When installing the Dorman 667-420 vacuum harness, verify the connector orientation matches the original harness to ensure proper fit. The 23-inch length allows for straightforward routing without excess slack. Inspect surrounding vacuum lines and connectors for wear or damage during replacement. Use appropriate tools to secure the male blade terminal and avoid over-tightening to prevent connector damage.

Quality Assurance and Warranty

This vacuum harness is a standard replacement part manufactured with quality plastic materials and designed to meet OEM specifications. While specific warranty details are not provided, Dorman products typically undergo rigorous testing to ensure durability and reliable performance in emission control applications for Ford and Lincoln vehicles.