HomeElectrical, Lighting and Body > Electrical ConnectorsDorman 645-205 Headlight Connector
Part #: 645-205

Dorman 645-205 Headlight Connector

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⚙️ 11 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Pontiac and Chevrolet, G5, Cobalt, G4, and Pursuit
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Reliable Headlight Connector for Chevrolet and Pontiac Models

The Dorman 645-205 headlight connector is designed to provide a secure and dependable electrical connection for your vehicle's lighting system. Specifically compatible with Chevrolet Cobalt, Pontiac G4, G5, and Pursuit models, this connector ensures proper fitment and function.

  • Durable polymer construction for long-lasting use
  • Female blade terminal type for secure electrical contact
  • Includes a 16-inch wiring harness with 7 wires
  • Supports 18-gauge wire for optimal current flow
  • Available in black, blue, and gray colors for easy identification
  • Features 10 female terminals in a combination of circular, oval, and rectangular shapes
  • Weather resistant design not included; intended for protected locations

Product Details and Specifications

The Dorman 645-205 headlight connector is engineered with a polymer material that balances durability and flexibility. It features a female gender connector with blade-type terminals, ensuring a reliable connection to the vehicle’s headlight wiring harness. The included 16-inch wiring harness contains seven 18-gauge wires, accommodating the electrical requirements of the headlight system. The connector terminals come in multiple shapes—circular, oval, and rectangular—to match the original equipment specifications for Chevrolet Cobalt, Pontiac G4, G5, and Pursuit models. This part is color-coded in black, blue, and gray to assist with proper installation and wiring identification.

Common Applications and Problem Resolution

  • Replacement for damaged or corroded headlight connectors
  • Restores proper electrical connection to headlights in Chevrolet and Pontiac vehicles
  • Solves intermittent lighting issues caused by faulty wiring harness connections
  • Addresses connector terminal wear or breakage
  • Facilitates wiring harness repairs or upgrades

Installation Notes and Tips

When installing the Dorman 645-205 headlight connector, ensure the vehicle’s battery is disconnected to prevent electrical shorts. Verify the connector orientation and terminal alignment before securing the connection. Use appropriate tools to crimp or secure terminals if necessary. Since this connector is not weather resistant, it should be installed in a protected area or supplemented with additional sealing measures if exposed to moisture. Confirm compatibility with your Chevrolet Cobalt, Pontiac G4, G5, or Pursuit model prior to installation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 645-205 headlight connector undergoes quality inspections to ensure reliable performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to the product packaging or Dorman’s official documentation for exact warranty terms.

BrandDorman
Part Number645-205
ColorBlack; Blue; Gray
GenderFemale
MaterialPolymer
Package Contents1 Pigtail
ShapeCircular
ShapeOval
ShapeRectangular
Terminal GenderFemale
Terminal Quantity10
Terminal TypeBlade
Weather ResistantNo
Wire Gauge Measurement18
Wire Harness IncludedYes
Wire Quantity7
Wiring Harness Length16

This part fits 11 vehicles. Search below:

YearMakeModelPositionNotes
2009PontiacG5N/AClear Outer Lens
2008ChevroletCobaltN/AClear Outer Lens
2008PontiacG5N/AClear Outer Lens
2007ChevroletCobaltN/AClear Outer Lens
2007PontiacG5N/AClear Outer Lens
2006ChevroletCobaltN/AClear Outer Lens
2006PontiacG4N/AClear Outer Lens
2006PontiacPursuitN/A
2005ChevroletCobaltN/AClear Outer Lens
2005PontiacG4N/AClear Outer Lens
2005PontiacPursuitN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

22740620

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.