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Dorman 645-131 Turn Signal / Parking Light Connector
Reliable Turn Signal Connector for Buick, Chevrolet, GMC, and Hummer
The Dorman 645-131 Turn Signal / Parking Light Connector is engineered to provide a secure and durable electrical connection for your vehicle's lighting system. Designed specifically for select Buick, Chevrolet, GMC, and Hummer models, this connector ensures consistent performance and reliable signal transmission.
- Constructed with high-quality brass and copper materials for excellent conductivity
- Durable nylon housing in black for resistance against wear and environmental factors
- Oval-shaped design with three terminals for secure fit and connection
- Compatible with 14-gauge wiring harnesses, included for convenience
- Male connector with blade-type terminals for easy installation and reliable contact
Durable Materials and Design for Long-Lasting Performance
The Dorman 645-131 connector features a combination of brass, copper, and nylon materials that provide both electrical efficiency and mechanical strength. The brass and copper components ensure optimal conductivity and corrosion resistance, while the nylon housing offers protection against heat, moisture, and vibration. Its oval shape and blade terminal design facilitate a secure connection within the vehicle's electrical system, reducing the risk of signal failure or intermittent lighting issues.
Compatible Vehicles and Applications
This turn signal and parking light connector is compatible with a range of Buick, Chevrolet, GMC, and Hummer models, including the Buick Allure and LaCrosse, Chevrolet Express 1500, 2500, and 3500, GMC P30, P3500, and Savana 1500, 2500, and 3500, as well as the Hummer H3. The Dorman 645-131 is designed to replace worn or damaged connectors in these vehicles, restoring proper electrical function to the turn signal and parking light circuits.
- Restores reliable turn signal and parking light operation
- Eliminates intermittent or faulty lighting caused by damaged connectors
- Prevents electrical shorts and corrosion in the lighting circuit
- Ensures secure connection in 14-gauge wiring harnesses
- Compatible with male blade terminal configurations
Installation Notes and Tips
Installation of the Dorman 645-131 connector requires basic electrical knowledge and tools. Ensure the vehicle's battery is disconnected before beginning work to avoid electrical hazards. The connector is designed for 14-gauge wiring and includes a wiring harness for straightforward integration. Verify the orientation of the oval-shaped connector and blade terminals to ensure a proper fit. Inspect the wiring and terminals for damage before installation to maintain optimal performance.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards, providing dependable quality and fitment. The 645-131 Turn Signal / Parking Light Connector undergoes rigorous testing to ensure durability and electrical reliability. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in material and workmanship.
| Brand | Dorman |
| Part Number | 645-131 |
| Material | Brass |
| Material | Bronce |
| Material | Cobre |
| Material | Copper |
| Material | Nailon |
| Material | Nylon |
| Color | Black |
| Color | Negro |
| Color | Noir |
| Gender | Macho |
| Gender | Male |
| Wire Gauge Measurement | 14 |
| Terminal Type | Aspa |
| Terminal Type | Blade |
| Shape | Oval |
| Shape | Ovalado |
| Terminal Quantity | 3 |
| Terminal Gender | Female |
| Terminal Gender | Hembra |
| Wiring Harness Included | Oui |
| Wiring Harness Included | Sí |
| Wiring Harness Included | Yes |
| Cableado incluido | Sí |
| Connector Material | Brass |
| Connector Material | Bronce |
| Connector Material | Cobre |
| Connector Material | Copper |
| Connector Material | Nailon |
| Connector Material | Nylon |
| Contenidos del paquete | 1 cable flexible, 3 conectores de presión |
This part fits 113 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2020 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2020 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2020 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2020 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2019 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2019 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2019 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2019 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2018 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2018 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2018 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2018 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2017 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2017 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2017 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2017 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2016 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2016 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2016 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2016 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2015 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2015 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2015 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2015 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2014 | Chevrolet | Express 1500 | N/A | Black; 3-Way Female w/Leads |
| 2014 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2014 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2014 | GMC | Savana 1500 | N/A | Black; 3-Way Female w/Leads |
| 2014 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2014 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2013 | Chevrolet | Express 1500 | N/A | Black; 3-Way Female w/Leads |
| 2013 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2013 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2013 | GMC | Savana 1500 | N/A | Black; 3-Way Female w/Leads |
| 2013 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2013 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2012 | Chevrolet | Express 1500 | N/A | Black; 3-Way Female w/Leads |
| 2012 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2012 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2012 | GMC | Savana 1500 | N/A | Black; 3-Way Female w/Leads |
| 2012 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2012 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2011 | Chevrolet | Express 1500 | N/A | Black; 3-Way Female w/Leads |
| 2011 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2011 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2011 | GMC | Savana 1500 | N/A | Black; 3-Way Female w/Leads |
| 2011 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2011 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2010 | Chevrolet | Express 1500 | N/A | Black; 3-Way Female w/Leads |
| 2010 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2010 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2010 | GMC | Savana 1500 | N/A | Black; 3-Way Female w/Leads |
| 2010 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2010 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2009 | Chevrolet | Express 1500 | N/A | Black; 3-Way Female w/Leads |
| 2009 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2009 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2009 | GMC | Savana 1500 | N/A | Black; 3-Way Female w/Leads |
| 2009 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2009 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2008 | Buick | Allure | N/A | Black; 3-Way Female w/Leads |
| 2008 | Buick | LaCrosse | N/A | Black; 3-Way Female w/Leads |
| 2008 | Chevrolet | Express 1500 | N/A | Black; 3-Way Female w/Leads |
| 2008 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2008 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2008 | GMC | Savana 1500 | N/A | Black; 3-Way Female w/Leads |
| 2008 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2008 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2008 | Hummer | H3 | N/A | Black; 3-Way Female w/Leads |
| 2007 | Buick | Allure | N/A | Black; 3-Way Female w/Leads |
| 2007 | Buick | LaCrosse | N/A | Black; 3-Way Female w/Leads |
| 2007 | Chevrolet | Express 1500 | N/A | Black; 3-Way Female w/Leads |
| 2007 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2007 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2007 | GMC | Savana 1500 | N/A | Black; 3-Way Female w/Leads |
| 2007 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2007 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2007 | Hummer | H3 | N/A | Black; 3-Way Female w/Leads |
| 2006 | Buick | Allure | N/A | Black; 3-Way Female w/Leads |
| 2006 | Buick | LaCrosse | N/A | Black; 3-Way Female w/Leads |
| 2006 | Chevrolet | Express 1500 | N/A | Black; 3-Way Female w/Leads |
| 2006 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2006 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2006 | GMC | Savana 1500 | N/A | Black; 3-Way Female w/Leads |
| 2006 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2006 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2006 | Hummer | H3 | N/A | Black; 3-Way Female w/Leads |
| 2005 | Buick | Allure | N/A | Black; 3-Way Female w/Leads |
| 2005 | Buick | LaCrosse | N/A | 3 Way Female w/Leads |
| 2005 | Chevrolet | Express 1500 | N/A | Black; 3-Way Female w/Leads |
| 2005 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2005 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2005 | GMC | Savana 1500 | N/A | Black; 3-Way Female w/Leads |
| 2005 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2005 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2004 | Chevrolet | Express 1500 | N/A | Black; 3-Way Female w/Leads |
| 2004 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2004 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2004 | GMC | Savana 1500 | N/A | Black; 3-Way Female w/Leads |
| 2004 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2004 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 2003 | Chevrolet | Express 1500 | N/A | Black; 3-Way Female w/Leads |
| 2003 | Chevrolet | Express 2500 | N/A | Black; 3-Way Female w/Leads |
| 2003 | Chevrolet | Express 3500 | N/A | Black; 3-Way Female w/Leads |
| 2003 | GMC | Savana 1500 | N/A | Black; 3-Way Female w/Leads |
| 2003 | GMC | Savana 2500 | N/A | Black; 3-Way Female w/Leads |
| 2003 | GMC | Savana 3500 | N/A | Black; 3-Way Female w/Leads |
| 1999 | Chevrolet | P30 | N/A | Black; 3-Way Female w/Leads |
| 1999 | GMC | P3500 | N/A | Black; 3-Way Female w/Leads |
| 1998 | Chevrolet | P30 | N/A | Black; 3-Way Female w/Leads |
| 1998 | GMC | P3500 | N/A | Black; 3-Way Female w/Leads |
| 1997 | Chevrolet | P30 | N/A | Black; 3-Way Female w/Leads |
| 1997 | GMC | P3500 | N/A | Black; 3-Way Female w/Leads |
* 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.