HomeElectrical, Lighting and Body > Electrical ConnectorsDorman 645-131 Turn Signal / Parking Light Connector
Part #: 645-131

Dorman 645-131 Turn Signal / Parking Light Connector

⚙️ 113 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick, Chevrolet, GMC, and Hummer, Allure, Express 1500, Express 2500, Express 3500, H3, LaCrosse, P30, P3500, Savana 1500, Savana 2500, and Savana 3500
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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.

BrandDorman
Part Number645-131
MaterialBrass
MaterialBronce
MaterialCobre
MaterialCopper
MaterialNailon
MaterialNylon
ColorBlack
ColorNegro
ColorNoir
GenderMacho
GenderMale
Wire Gauge Measurement14
Terminal TypeAspa
Terminal TypeBlade
ShapeOval
ShapeOvalado
Terminal Quantity3
Terminal GenderFemale
Terminal GenderHembra
Wiring Harness IncludedOui
Wiring Harness Included
Wiring Harness IncludedYes
Cableado incluido
Connector MaterialBrass
Connector MaterialBronce
Connector MaterialCobre
Connector MaterialCopper
Connector MaterialNailon
Connector MaterialNylon
Contenidos del paquete1 cable flexible, 3 conectores de presión

This part fits 113 vehicles. Search below:

YearMakeModelPositionNotes
2020ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2020ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2020GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2020GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2019ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2019ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2019GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2019GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2018ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2018ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2018GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2018GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2017ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2017ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2017GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2017GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2016ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2016ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2016GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2016GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2015ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2015ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2015GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2015GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2014ChevroletExpress 1500N/ABlack; 3-Way Female w/Leads
2014ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2014ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2014GMCSavana 1500N/ABlack; 3-Way Female w/Leads
2014GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2014GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2013ChevroletExpress 1500N/ABlack; 3-Way Female w/Leads
2013ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2013ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2013GMCSavana 1500N/ABlack; 3-Way Female w/Leads
2013GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2013GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2012ChevroletExpress 1500N/ABlack; 3-Way Female w/Leads
2012ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2012ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2012GMCSavana 1500N/ABlack; 3-Way Female w/Leads
2012GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2012GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2011ChevroletExpress 1500N/ABlack; 3-Way Female w/Leads
2011ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2011ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2011GMCSavana 1500N/ABlack; 3-Way Female w/Leads
2011GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2011GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2010ChevroletExpress 1500N/ABlack; 3-Way Female w/Leads
2010ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2010ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2010GMCSavana 1500N/ABlack; 3-Way Female w/Leads
2010GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2010GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2009ChevroletExpress 1500N/ABlack; 3-Way Female w/Leads
2009ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2009ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2009GMCSavana 1500N/ABlack; 3-Way Female w/Leads
2009GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2009GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2008BuickAllureN/ABlack; 3-Way Female w/Leads
2008BuickLaCrosseN/ABlack; 3-Way Female w/Leads
2008ChevroletExpress 1500N/ABlack; 3-Way Female w/Leads
2008ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2008ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2008GMCSavana 1500N/ABlack; 3-Way Female w/Leads
2008GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2008GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2008HummerH3N/ABlack; 3-Way Female w/Leads
2007BuickAllureN/ABlack; 3-Way Female w/Leads
2007BuickLaCrosseN/ABlack; 3-Way Female w/Leads
2007ChevroletExpress 1500N/ABlack; 3-Way Female w/Leads
2007ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2007ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2007GMCSavana 1500N/ABlack; 3-Way Female w/Leads
2007GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2007GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2007HummerH3N/ABlack; 3-Way Female w/Leads
2006BuickAllureN/ABlack; 3-Way Female w/Leads
2006BuickLaCrosseN/ABlack; 3-Way Female w/Leads
2006ChevroletExpress 1500N/ABlack; 3-Way Female w/Leads
2006ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2006ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2006GMCSavana 1500N/ABlack; 3-Way Female w/Leads
2006GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2006GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2006HummerH3N/ABlack; 3-Way Female w/Leads
2005BuickAllureN/ABlack; 3-Way Female w/Leads
2005BuickLaCrosseN/A3 Way Female w/Leads
2005ChevroletExpress 1500N/ABlack; 3-Way Female w/Leads
2005ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2005ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2005GMCSavana 1500N/ABlack; 3-Way Female w/Leads
2005GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2005GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2004ChevroletExpress 1500N/ABlack; 3-Way Female w/Leads
2004ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2004ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2004GMCSavana 1500N/ABlack; 3-Way Female w/Leads
2004GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2004GMCSavana 3500N/ABlack; 3-Way Female w/Leads
2003ChevroletExpress 1500N/ABlack; 3-Way Female w/Leads
2003ChevroletExpress 2500N/ABlack; 3-Way Female w/Leads
2003ChevroletExpress 3500N/ABlack; 3-Way Female w/Leads
2003GMCSavana 1500N/ABlack; 3-Way Female w/Leads
2003GMCSavana 2500N/ABlack; 3-Way Female w/Leads
2003GMCSavana 3500N/ABlack; 3-Way Female w/Leads
1999ChevroletP30N/ABlack; 3-Way Female w/Leads
1999GMCP3500N/ABlack; 3-Way Female w/Leads
1998ChevroletP30N/ABlack; 3-Way Female w/Leads
1998GMCP3500N/ABlack; 3-Way Female w/Leads
1997ChevroletP30N/ABlack; 3-Way Female w/Leads
1997GMCP3500N/ABlack; 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:

1208549288862224

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