Dorman 645-100 Tail Light Socket

Brand Dorman 645-100
Position Front, Left, Right, and Lower
Bulb Base Type Snap on
Connector Color Gray
Retainer Included No
Wire Quantity 0
Connector Shape Oval
Terminal Quantity 3
Connector Gender Female
Terminal Gender Female
Overall Length 40.1 mm
Package Contents 1 socket
Terminal Material Zinc coated copper
Terminal Type Male
Weather Resistant Yes
Wire Harness Included No
Fits Acura and Honda · 131 vehicles

Weather resistant. Built to help protect the socket from moisture and corrosion.

Extra-long leads. Makes routing and connection easier during installation.

Zinc-coated copper terminals. Helps maintain a reliable electrical connection.

Cross-references 33302SR3A01 for the same application. See all 1.

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Dorman 645-100 Tail Light Socket

Dorman 645-100 is a tail light socket assembly built for direct electrical repair on a wide range of Honda and Acura vehicles. It features a snap-on bulb base, an oval gray connector, and weather-resistant construction for dependable rear lighting connections.

Key Features

  • Tail light socket assembly for rear lamp electrical repair
  • Snap-on bulb base type with a 3-terminal female connector
  • Gray oval connector with weather-resistant construction
  • Zinc-coated copper terminals for stable electrical contact
  • Extra-long leads and multiple butt connectors are part of the Dorman socket assembly design
  • Fits applications across Honda Accord, Civic, CR-V, Odyssey, Pilot, and Acura RLX, TSX, RDX, RL, TL, and CL

Detailed Description

This Dorman tail light socket, part number 645-100, is engineered for vehicles that need a replacement rear lamp socket with the correct connector style and terminal layout. The socket uses a snap-on bulb base, a female connector, and zinc-coated copper terminals to support a secure electrical connection in lighting circuits. It is a weather-resistant socket assembly intended for service on Honda and Acura models including Accord, Civic, CR-V, Odyssey, Pilot, RLX, TSX, RDX, RL, TL, and CL. This part cross-references Honda/Acura OE number 33302SR3A01 for the same application.

What It Helps Fix

  • Intermittent or failed tail light operation caused by a worn socket
  • Corrosion at the rear lamp electrical connection
  • Heat-damaged or loose bulb socket terminals
  • Broken connector fitment at the tail lamp housing
  • Electrical contact issues in rear lighting circuits

Installation Notes and Tips

Verify connector shape, terminal count, and bulb base type before installation. Confirm vehicle position and lamp side against the fitment listing, including front, lower, left, right, and N/A applications where specified. Inspect the lamp housing and wiring for heat damage or corrosion before connecting the new socket. Professional installation is recommended for proper electrical repair and fitment confirmation.

Quality Assurance

Dorman socket assemblies are built with extra-long leads and multiple butt connectors to support serviceable electrical repairs. The 645-100 is a weather-resistant replacement socket designed to meet the connector and terminal requirements of the listed Honda and Acura applications.

This part fits 131 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypePositionNotes
2017AcuraRLXFront
2016AcuraRLXFront
2015AcuraRLXN/A
2015HondaCrosstourN/A
2014AcuraRLXN/A
2014AcuraTSXFront
2014HondaCR-VN/A
2014HondaCrosstourN/A
2013AcuraTSXSedanLower
2013HondaCR-VN/A
2013HondaCrosstourN/A
2012AcuraRDXN/A
2012AcuraRLN/A
2012AcuraTSXSedanLower
2012HondaAccordCoupeLeft
2012HondaAccordCoupeRight
2012HondaCR-VN/A
2012HondaCrosstourN/A
2011AcuraRDXN/A
2011AcuraRLN/A
2011AcuraTLN/A
2011AcuraTSXSedanLower
2011HondaAccordCoupeLeft
2011HondaAccordCoupeRight
2011HondaAccord CrosstourN/A
2011HondaCivicN/A
2011HondaElementN/A
2010AcuraRDXN/A
2010AcuraRLN/A
2010AcuraTLN/A
2010AcuraTSXSedanLower
2010HondaAccordCoupeLeft
2010HondaAccordCoupeRight
2010HondaAccord CrosstourN/A
2010HondaCivicN/A
2010HondaElementN/A
2009AcuraRDXN/A
2009AcuraRLN/A
2009AcuraTLN/A
2009AcuraTSXSedanLower
2009HondaAccordCoupeLeft
2009HondaAccordCoupeRight
2009HondaCivicN/A
2009HondaElementN/A
2008AcuraRDXN/A
2008AcuraRLN/A
2008AcuraTLN/A
2008HondaAccordCoupeLeft
2008HondaAccordCoupeRight
2008HondaCivicN/A
2007AcuraRDXN/A
2007AcuraRLN/A
2007AcuraTLN/A
2007HondaAccordCoupeLeft
2007HondaAccordCoupeRight
2007HondaCivicN/A
2006AcuraRLN/A
2006AcuraTLN/A
2006HondaAccordCoupeLeft
2006HondaAccordCoupeRight
2006HondaCivicN/A
2005AcuraRLN/A
2005AcuraTLN/A
2005HondaAccordCoupeLeft
2005HondaAccordCoupeRight
2005HondaCivicN/A
2005HondaPilotN/A
2004AcuraRLN/A
2004AcuraTLN/A
2004HondaAccordCoupeLeft
2004HondaAccordCoupeRight
2004HondaCivicN/A
2004HondaOdysseyFront
2004HondaPilotN/A
2003AcuraCLN/A
2003AcuraRLN/A
2003AcuraTLN/A
2003HondaAccordCoupeLeft
2003HondaAccordCoupeRight
2003HondaCivicN/A
2003HondaOdysseyFront
2003HondaPilotN/A
2002AcuraCLN/A
2002AcuraRLN/A
2002AcuraTLN/A
2002HondaAccordCoupeLeft
2002HondaAccordCoupeRight
2002HondaCivicN/A
2002HondaOdysseyFront
2001AcuraCLN/A
2001AcuraRLN/A
2001AcuraTLN/A
2001HondaAccordCoupeLeft
2001HondaAccordCoupeRight
2001HondaCivicN/A
2001HondaCR-VN/A
2001HondaOdysseyFront
2000AcuraRLN/A
2000AcuraTLN/A
2000HondaAccordCoupeLeft
2000HondaAccordCoupeRight
2000HondaCivicN/A
2000HondaCR-VN/A
2000HondaOdysseyFront
1999AcuraRLN/A
1999AcuraTLN/A
1999HondaAccordCoupeLeft
1999HondaAccordCoupeRight
1999HondaCivicN/A
1999HondaCR-VN/A
1999HondaOdysseyFront
1998HondaAccordCoupeLeft
1998HondaAccordCoupeRight
1998HondaCivicN/A
1998HondaCR-VN/A
1998HondaOdysseyFront
1997HondaCivicN/A
1997HondaCivic del SolN/A
1997HondaCR-VN/A
1997HondaOdysseyFront
1996HondaCivicN/A
1996HondaCivic del SolN/A
1996HondaOdysseyFront
1995HondaCivicN/A
1995HondaCivic del SolN/A
1995HondaOdysseyFront
1994HondaCivicN/A
1994HondaCivic del SolN/A
1993HondaCivicN/A
1993HondaCivic del SolN/A
1992HondaCivicN/A
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
33302SR3A01