Dorman 645-133 Turn Signal / Parking Light Connector

Turn Signal Connector for OE-Style Repairs

Dorman 645-133 is a turn signal / parking light connector built to match the original connector’s appearance and function on specified vehicles. It uses quality materials for dependable electrical contact and long-term durability, with a black oval housing and a 3-cavity female blade terminal layout.

Compatible With Ford F-150, Ford Expedition, Ford Edge, Chevrolet Trailblazer, and other listed applications, this connector is a direct-fit solution for restoring lighting circuit integrity. The Dorman 645-133 connector also includes a 16.6 in. wire harness with 16-gauge wiring for service-ready repairs.

Key Features

• OE-style turn signal / parking light connector for specified applications
• Black oval housing with 3-terminal female blade configuration
• 16-gauge wiring with 16.6 in. wire harness included
• Water-resistant construction for added protection at the connection point
• Built with brass, copper, and nylon materials for electrical reliability
• Direct replacement for Dorman 645-133

Detailed Description

Dorman 645-133 is engineered as a replacement electrical connector for turn signal and parking light circuits where the original plug has heat damage, corrosion, broken terminals, or a loose fit. The connector is shaped to match the factory-style oval profile and uses a 3-way female blade terminal arrangement to restore a secure connection. This part cross-references Standard Ignition S-895 for the same application.

Vehicle coverage includes many Ford, Lincoln, Chevrolet, GMC, Mercury, Buick, Saturn, and Oldsmobile applications. Common search terms for this part include Ford F-150 turn signal connector, Ford Expedition parking light connector, and Chevrolet Trailblazer light connector. The Dorman 645-133 is also listed for Ford E-Series, Explorer, Ranger, and Lincoln Navigator applications.

Common Problems This Part Can Help Solve

• Intermittent turn signal or parking light operation caused by a damaged connector
• Corrosion at the terminal interface from moisture exposure
• Heat-related melting or deformation at the original plug
• Loose electrical contact that creates flickering or unreliable lighting
• Broken locking tabs or worn terminals on the factory connector

Installation Notes and Tips

Inspect the mating terminals and wiring before installation, and repair any damaged conductors as needed. Match the connector cavity layout and terminal style to the original harness before splicing. Use proper crimping and sealing practices for a secure electrical repair, especially on exterior lighting circuits exposed to moisture.

Fits 1999-2010 Ford F-250 Super Duty, N/A; Fits 1999-2010 Ford F-350 Super Duty, N/A; Fits 2004-2014 Ford F-150, N/A; Fits 2004-2017 Ford Expedition, N/A; Fits 2007-2017 Ford Edge, N/A; Fits 2003-2009 Chevrolet Trailblazer, N/A; Fits 2005-2013 Chevrolet Corvette, N/A.

Quality Assurance

Dorman designs this connector to match the original hardware’s appearance and function on specified applications, using durable materials selected for reliable electrical performance. Part number 645-133 is built for service replacement use on the listed vehicles.