OE Quality
60-Day Returns

Dorman 645-205 Headlight Connector
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.
| Brand | Dorman |
| Part Number | 645-205 |
| Color | Black; Blue; Gray |
| Gender | Female |
| Material | Polymer |
| Package Contents | 1 Pigtail |
| Shape | Circular |
| Shape | Oval |
| Shape | Rectangular |
| Terminal Gender | Female |
| Terminal Quantity | 10 |
| Terminal Type | Blade |
| Weather Resistant | No |
| Wire Gauge Measurement | 18 |
| Wire Harness Included | Yes |
| Wire Quantity | 7 |
| Wiring Harness Length | 16 |
This part fits 11 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2009 | Pontiac | G5 | N/A | Clear Outer Lens |
| 2008 | Chevrolet | Cobalt | N/A | Clear Outer Lens |
| 2008 | Pontiac | G5 | N/A | Clear Outer Lens |
| 2007 | Chevrolet | Cobalt | N/A | Clear Outer Lens |
| 2007 | Pontiac | G5 | N/A | Clear Outer Lens |
| 2006 | Chevrolet | Cobalt | N/A | Clear Outer Lens |
| 2006 | Pontiac | G4 | N/A | Clear Outer Lens |
| 2006 | Pontiac | Pursuit | N/A | |
| 2005 | Chevrolet | Cobalt | N/A | Clear Outer Lens |
| 2005 | Pontiac | G4 | N/A | Clear Outer Lens |
| 2005 | Pontiac | Pursuit | N/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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.