Dorman 645-242 Oxygen Sensor Connector

Dorman 645-242 Oxygen Sensor Connector

Dorman 645-242 is a female oxygen sensor connector pigtail built for electrical repairs and accessory installations where a clean circuit disconnect is needed for service. It uses a 4-wire, 4-terminal oval design with 19-gauge wiring and a 12-inch harness length for direct connector repair work.

This connector is a practical OE-style repair solution for Ford and Lincoln applications that use a 6-cavity oxygen sensor connector. It is commonly searched as an oxygen sensor connector pigtail for Ford Explorer, Ford Fusion, and Lincoln MKZ service repairs.

Key Features

• Female oxygen sensor connector pigtail for electrical connector repair
• 4-wire, 4-terminal oval connector design
• 12-inch wiring harness length for repair routing
• 19-gauge wire construction
• Blade-style terminals with female terminal gender
• Available in black, blue, red, and yellow wire color coding
• Supports quick circuit disconnection for service access

Detailed Description

Dorman 645-242 is engineered for reliable electrical repair performance in oxygen sensor connector applications. The pigtail format helps restore damaged, corroded, or broken connector ends without replacing the full harness, making it a direct-fit repair option for technicians working on Ford Explorer, Ford Flex, Ford Taurus, Ford Transit-150, Ford Transit-250, Ford Transit-350, Ford Transit-350 HD, Lincoln MKT, Lincoln Navigator, and other listed vehicles. This part cross-references Ford DU2Z14S411AFA and WPT1355 for the same application.

Use this connector when the original oxygen sensor plug has heat damage, terminal wear, or intermittent electrical contact. The oval housing, 6-cavity application note, and blade terminals support a secure repair connection for service work on Ford F-150, Ford Fusion, Lincoln MKZ, and related models.

What It Helps Fix

• Broken or damaged oxygen sensor connector ends
• Corroded terminals causing poor electrical contact
• Intermittent sensor signal issues from worn wiring connections
• Heat-related connector damage near the exhaust system
• Service disconnect problems during sensor replacement or diagnostics

Installation Notes and Tips

Verify the connector cavity count, terminal style, and wire layout against the original part before installation. Match the vehicle harness wiring carefully and use proper splicing practices for a secure electrical repair. Confirm fitment for the exact Ford or Lincoln model and year listed, including 2013-2019 Ford Taurus, 2014-2019 Ford Explorer, and 2013-2017 Lincoln MKZ applications.

• Fits 2014-2019 Ford Explorer, N/A
• Fits 2013-2019 Ford Flex, N/A
• Fits 2013-2019 Ford Taurus, N/A
• Fits 2015-2019 Ford Transit-150, N/A
• Fits 2015-2019 Ford Transit-250, N/A
• Fits 2015-2019 Ford Transit-350, N/A
• Fits 2015-2019 Ford Transit-350 HD, N/A
• Fits 2013-2019 Lincoln MKT, N/A
• Fits 2015-2019 Lincoln Navigator, N/A
• Fits 2013-2018 Ford C-Max, N/A
• Fits 2015-2017 Ford Expedition, N/A
• Fits 2013-2017 Ford Fusion, N/A
• Fits 2015-2017 Lincoln MKC, N/A
• Fits 2013-2017 Lincoln MKZ, N/A
• Fits 2014-2016 Ford F-150, N/A
• Fits 2014-2016 Ford Transit Connect, N/A
• Fits 2013-2016 Lincoln MKS, N/A
• Fits 2013-2015 Ford Edge, N/A
• Fits 2013-2014 Ford E-150, N/A
• Fits 2013-2014 Ford E-250, N/A
• Fits 2013-2014 Ford E-350 Super Duty, N/A
• Fits 2013-2014 Ford Econoline Van, N/A
• Fits 2013-2014 Ford Econoline Wagon, N/A
• Fits 2013-2014 Ford Escape, N/A
• Fits 2013-2014 Ford Mustang, N/A

Quality Assurance

Dorman manufactures replacement electrical components for repair-focused applications, and this connector is built to support dependable service work on the listed Ford and Lincoln vehicles. Part number 645-242 is intended as a direct connector repair solution for oxygen sensor wiring restoration.