HomeElectrical, Lighting and Body > Electrical ConnectorsDorman 645-942 Door Window Switch Connector - Front Left
Part #: 645-942

Dorman 645-942 Door Window Switch Connector - Front Left

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75 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet, Pontiac, Buick, GMC, Oldsmobile, and Cadillac, Camaro, Firebird, Skylark, Astro, Safari, Achieva, G10, G20, G30, P30, S10 Blazer, G1500, G2500, G3500, Jimmy, P3500, DeVille, Sunbird, Brougham, Commercial Chassis, Cutlass Ciera, Fleetwood, Blazer, S15 Jimmy, Beretta, Tempest, and Century
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Dorman 645-942 Door Window Switch Connector

Dorman 645-942 is a gray female door window switch connector built for 6-way switch applications with leads. It is made from plastic with blade terminals and is shaped to match the original connector layout for a direct electrical repair on select Chevrolet, GMC, Pontiac, Buick, Cadillac, and Oldsmobile vehicles.

Use this OE-style replacement when the original door window switch connector is damaged, heat-affected, or no longer making a secure connection. This part cross-references Standard Ignition S-1090 for the same application.

Key Features

  • Gray female connector for door window switch circuits
  • 6-wire, 6-terminal design with blade terminals
  • Rectangular plastic housing for a factory-style fit
  • 16.53-inch wiring harness length for leaded repairs
  • Matches original appearance and function on specified applications
  • Fits 6-way window switch setups with leads

Detailed Description

This Dorman door window switch connector is engineered as a replacement electrical connector for vehicles using a 6-way window switch with leads. The rectangular housing, female terminal layout, and blade-style terminals are designed to align with the original hardware used on select Camaro, Firebird, Astro, Safari, Jimmy, Blazer, and related GM platforms. The Dorman 645-942 helps restore a stable connection at the switch when the factory connector has worn terminals, cracked plastic, or intermittent contact.

Fitment includes 1993-2002 Chevrolet Camaro, 1993-2002 Pontiac Firebird, 1990-1995 Chevrolet Astro, 1990-1995 GMC Safari, 1991-1994 GMC Jimmy, and other listed applications. It also fits 1994 Chevrolet G10, G20, and G30 front left, plus 1994 GMC G1500, G2500, and G3500 front left. Additional coverage includes 1991-1993 Cadillac DeVille, 1990-1992 Oldsmobile Cutlass Ciera, and 1982 Buick Century.

What It Helps Fix

  • Intermittent power window switch operation
  • Loose or damaged connector terminals
  • Cracked or heat-damaged switch plug housing
  • Electrical contact loss at the door window switch
  • Wiring repairs on 6-way switch circuits with leads

Installation Notes and Tips

Verify the vehicle’s connector style, terminal count, and switch configuration before installation. This part is for 6-way applications with leads and uses female blade terminals. Match wire positions carefully during repair, and inspect the switch, harness, and nearby wiring for heat damage or corrosion before reconnecting. Fitment examples include Fits 1993-2002 Chevrolet Camaro, N/A; Fits 1993-2002 Pontiac Firebird, N/A; and Fits 1994 Chevrolet G10, Front Left.

Quality Assurance

Dorman designs this connector to match the appearance and function of the original hardware on specified applications. It is made from quality materials for reliable performance and durability in electrical repair use.

BrandDorman
Part Number645-942
ColorGray
Connector Length0.32 in
Connector MaterialPlastic
GenderFemale
Package Contents1 Door Window Switch Connector;6 Butt Connectors
ShapeRectangular
Terminal GenderFemale
Terminal Quantity6
Terminal TypeBlade
Water ResistantNo
Wire Gauge Measurement16
Wire Quantity6
Wiring Harness Length16.53

This part fits 75 vehicles. Search below:

YearMakeModelBody Type# DoorsPositionNotes
2002ChevroletCamaroN/A6 Way w/Leads
2002PontiacFirebirdN/A6 Way w/Leads
2001ChevroletCamaroN/A6 Way w/Leads
2001PontiacFirebirdN/A6 Way w/Leads
2000ChevroletCamaroN/A6 Way w/Leads
2000PontiacFirebirdN/A6 Way w/Leads
1999ChevroletCamaroN/A6 Way w/Leads
1999PontiacFirebirdN/A6 Way w/Leads
1998ChevroletCamaroN/A6 Way w/Leads
1998PontiacFirebirdN/A6 Way w/Leads
1997ChevroletCamaroN/A6 Way w/Leads
1997PontiacFirebirdN/A6 Way w/Leads
1996ChevroletCamaroN/A6 Way w/Leads
1996PontiacFirebirdN/A6 Way w/Leads
1995BuickSkylarkCoupeN/A6 Way w/Leads
1995ChevroletAstroN/A6 Way w/Leads
1995ChevroletCamaroN/A6 Way w/Leads
1995GMCSafariN/A6 Way w/Leads
1995OldsmobileAchievaCoupeN/A6 Way w/Leads
1995PontiacFirebirdN/A6 Way w/Leads
1994BuickSkylarkCoupeN/A6 Way w/Leads
1994ChevroletAstroN/A6 Way w/Leads
1994ChevroletCamaroN/A6 Way w/Leads
1994ChevroletG10Front Left6 Way w/Leads
1994ChevroletG20Front Left6 Way w/Leads
1994ChevroletG30Front Left6 Way w/Leads
1994ChevroletP30N/A6 Way w/Leads
1994ChevroletS10 Blazer2 DoorN/A6 Way w/Leads
1994GMCG1500Front Left6 Way w/Leads
1994GMCG2500Front Left6 Way w/Leads
1994GMCG3500Front Left6 Way w/Leads
1994GMCJimmy2 DoorN/A6 Way w/Leads
1994GMCP3500N/A6 Way w/Leads
1994GMCSafariN/A6 Way w/Leads
1994OldsmobileAchievaCoupeN/A6 Way w/Leads
1994PontiacFirebirdN/A6 Way w/Leads
1993BuickSkylarkCoupeN/A6 Way w/Leads
1993CadillacDeVilleCoupeN/A6 Way w/Leads
1993ChevroletAstroN/A6 Way w/Leads
1993ChevroletCamaroN/A6 Way w/Leads
1993ChevroletP30N/A6 Way w/Leads
1993ChevroletS10 Blazer2 DoorN/A6 Way w/Leads
1993GMCJimmy2 DoorN/A6 Way w/Leads
1993GMCP3500N/A6 Way w/Leads
1993GMCSafariN/A6 Way w/Leads
1993OldsmobileAchievaCoupeN/A6 Way w/Leads
1993PontiacFirebirdN/A6 Way w/Leads
1993PontiacSunbirdCoupeN/A6 Way w/Leads
1992BuickSkylarkCoupeN/A6 Way w/Leads
1992CadillacBroughamN/A6 Way w/Leads
1992CadillacCommercial ChassisN/A6 Way w/Leads
1992CadillacDeVilleCoupeN/A6 Way w/Leads
1992ChevroletAstroN/A6 Way w/Leads
1992ChevroletS10 Blazer2 DoorN/A6 Way w/Leads
1992GMCJimmy2 DoorN/A6 Way w/Leads
1992GMCSafariN/A6 Way w/Leads
1992OldsmobileAchievaCoupeN/A6 Way w/Leads
1992OldsmobileCutlass CieraCoupeN/A6 Way w/Leads
1992PontiacSunbirdCoupeN/A6 Way w/Leads
1991CadillacBroughamN/A6 Way w/Leads
1991CadillacCommercial ChassisN/A6 Way w/Leads
1991CadillacDeVilleCoupeN/A6 Way w/Leads
1991CadillacFleetwoodCoupeN/A6 Way w/Leads
1991ChevroletAstroN/A6 Way w/Leads
1991ChevroletBlazerN/A6 Way w/Leads
1991ChevroletS10 Blazer2 DoorN/A6 Way w/Leads
1991GMCJimmy2 DoorN/A6 Way w/Leads
1991GMCS15 Jimmy2 DoorN/A6 Way w/Leads
1991GMCSafariN/A6 Way w/Leads
1991OldsmobileCutlass CieraCoupeN/A6 Way w/Leads
1990ChevroletAstroN/A6 Way w/Leads
1990GMCSafariN/A6 Way w/Leads
1990OldsmobileCutlass CieraCoupeN/A6 Way w/Leads
1990PontiacTempestN/A6 Way w/Leads
1982BuickCenturyCoupeN/A6 Way 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:

121256341P1600968EC558PT546PT638S-1090

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