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Dorman 645-503 Tail Light Repair Harness Connector - Rear LeftOE Quality 60-Day Returns
Part #: 645-503

Dorman 645-503 Tail Light Repair Harness Connector - Rear Left

Rear Left
127 vehicles fit this part
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Fitment: Jeep, Chrysler, Dodge, and Freightliner, Grand Cherokee, Pacifica, Ram 1500, Ram 2500, Ram 3500, Atos, Caravan, Dakota, Durango, Grand Caravan, H100, Intrepid, Neon, Ram 1500 Van, Ram 2500 Van, Ram 3500 Van, Sprinter 2500, Sprinter 3500, Stratus, SX 2.0, Viper, Ramcharger, Town & Country, Avenger, B1500, B2500, B3500, B150, B250, and B350
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Dorman 645-503 Tail Light Wiring Harness Connector

Dorman 645-503 is a tail light wiring harness connector built for clean electrical repairs and accessory installations. It uses weatherproof terminals and a locking tab to create a secure quick-disconnect connection, helping restore dependable rear lighting performance on supported Chrysler, Dodge, and Jeep applications.

Key Features

  • Tail light wiring harness connector for electrical repair work
  • Weatherproof terminals help protect the connection point
  • Locking tab supports a secure quick-disconnect fit
  • Clean-installed pigtail design for a neater repair finish
  • Uses 14-gauge and 20-gauge wire specifications
  • Spade-style terminal design

Detailed Description

This Dorman tail light wiring harness connector is designed for direct electrical service where the original connector is damaged, corroded, or no longer locking properly. Part number 645-503 is a practical repair solution for rear lighting circuits on vehicles such as the Dodge Ram 1500, Dodge Dakota, and Jeep Grand Cherokee, along with other listed Chrysler and Dodge models. It is built to support a reliable connection while maintaining a tidy, factory-style appearance after installation. This part cross-references Standard Ignition S-1922 for the same application.

Common Repair Uses

  • Broken or heat-damaged tail light connector housing
  • Corrosion at the rear lamp wiring connection
  • Loose terminals causing intermittent lighting operation
  • Failed locking tab that no longer secures the plug
  • Damaged pigtail wiring during rear lamp service

Installation Notes and Tips

Match the wire gauge and terminal style before splicing the repair harness into the vehicle wiring. Use proper butt connectors and sealed electrical repair practices to maintain a weather-resistant connection. Verify pin orientation and locking engagement before reassembling the lamp assembly. Fits 1998-2004 Dodge Ram 1500, rear lighting connection; Fits 1998-2004 Dodge Ram 2500, rear lighting connection; Fits 1998-2004 Dodge Ram 3500, rear lighting connection; Fits 1998-2003 Dodge Dakota, rear lighting connection; Fits 2005-2010 Jeep Grand Cherokee, rear left.

Quality Assurance

Dorman designs replacement electrical components to address common connector failure points with serviceable, application-specific parts. Part number 645-503 is built for repair-focused use on supported Chrysler, Dodge, and Jeep vehicles, including Dodge Ram and Jeep Grand Cherokee applications.

This part fits 127 vehicles. Search below:

YearMakeModelPositionNotes
2010JeepGrand CherokeeRear LeftPower Window Regulator w/Motor
2009JeepGrand CherokeeRear LeftPower Window Regulator w/Motor
2008JeepGrand CherokeeRear LeftPower Window Regulator w/Motor
2007JeepGrand CherokeeRear LeftPower Window Regulator w/Motor
2006JeepGrand CherokeeRear LeftPower Window Regulator w/Motor
2005ChryslerPacificaN/A
2005JeepGrand CherokeeRear LeftPower Window Regulator w/Motor
2004ChryslerPacificaN/A
2004DodgeRam 1500N/A
2004DodgeRam 2500N/A
2004DodgeRam 3500N/A
2003DodgeCaravanN/A
2003DodgeDakotaN/A
2003DodgeDurangoN/A
2003DodgeGrand CaravanN/A
2003DodgeIntrepidN/A
2003DodgeNeonN/A
2003DodgeRam 1500N/A
2003DodgeRam 1500 VanN/A
2003DodgeRam 2500N/A
2003DodgeRam 2500 VanN/A
2003DodgeRam 3500N/A
2003DodgeRam 3500 VanN/A
2003DodgeSprinter 2500N/A
2003DodgeSprinter 3500N/A
2003DodgeStratusN/A
2003DodgeViperN/A
2002DodgeCaravanN/A
2002DodgeDakotaN/A
2002DodgeDurangoN/A
2002DodgeGrand CaravanN/A
2002DodgeIntrepidN/A
2002DodgeNeonN/A
2002DodgeRam 1500N/A
2002DodgeRam 1500 VanN/A
2002DodgeRam 2500N/A
2002DodgeRam 2500 VanN/A
2002DodgeRam 3500N/A
2002DodgeRam 3500 VanN/A
2002DodgeStratusN/A
2002DodgeViperN/A
2001DodgeCaravanN/A
2001DodgeDakotaN/A
2001DodgeDurangoN/A
2001DodgeGrand CaravanN/A
2001DodgeIntrepidN/A
2001DodgeNeonN/A
2001DodgeRam 1500N/A
2001DodgeRam 1500 VanN/A
2001DodgeRam 2500N/A
2001DodgeRam 2500 VanN/A
2001DodgeRam 3500N/A
2001DodgeRam 3500 VanN/A
2001DodgeRamchargerN/A
2001DodgeStratusN/A
2001DodgeViperN/A
2000ChryslerTown & CountryN/A
2000DodgeAvengerN/A
2000DodgeCaravanN/A
2000DodgeDakotaN/A
2000DodgeDurangoN/A
2000DodgeGrand CaravanN/A
2000DodgeIntrepidN/A
2000DodgeNeonN/A
2000DodgeRam 1500N/A
2000DodgeRam 1500 VanN/A
2000DodgeRam 2500N/A
2000DodgeRam 2500 VanN/A
2000DodgeRam 3500N/A
2000DodgeRam 3500 VanN/A
2000DodgeRamchargerN/A
2000DodgeStratusN/A
2000DodgeViperN/A
1999ChryslerTown & CountryN/A
1999DodgeAvengerN/A
1999DodgeCaravanN/A
1999DodgeDakotaN/A
1999DodgeDurangoN/A
1999DodgeGrand CaravanN/A
1999DodgeIntrepidN/A
1999DodgeNeonN/A
1999DodgeRam 1500N/A
1999DodgeRam 1500 VanN/A
1999DodgeRam 2500N/A
1999DodgeRam 2500 VanN/A
1999DodgeRam 3500N/A
1999DodgeRam 3500 VanN/A
1999DodgeRamchargerN/A
1999DodgeStratusN/A
1999DodgeViperN/A
1998ChryslerTown & CountryN/A
1998DodgeAvengerN/A
1998DodgeB1500N/A
1998DodgeB2500N/A
1998DodgeB3500N/A
1998DodgeCaravanN/A
1998DodgeDakotaN/A
1998DodgeDurangoN/A
1998DodgeGrand CaravanN/A
1998DodgeIntrepidN/A
1998DodgeNeonN/A
1998DodgeRam 1500N/A
1998DodgeRam 1500 VanN/A
1998DodgeRam 2500N/A
1998DodgeRam 2500 VanN/A
1998DodgeRam 3500N/A
1998DodgeRam 3500 VanN/A
1998DodgeStratusN/A
1998DodgeViperN/A
1997ChryslerTown & CountryN/A
1997DodgeB1500N/A
1997DodgeB2500N/A
1997DodgeB3500N/A
1997DodgeCaravanN/A
1997DodgeGrand CaravanN/A
1996ChryslerTown & CountryN/A
1996DodgeB1500N/A
1996DodgeB2500N/A
1996DodgeB3500N/A
1996DodgeCaravanN/A
1996DodgeGrand CaravanN/A
1995DodgeB1500N/A
1995DodgeB2500N/A
1995DodgeB3500N/A
1994DodgeB150N/A
1994DodgeB250N/A
1994DodgeB350N/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:

10131P16455013984AAPT1421S-1922

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