Homeโ€บ Electrical, Lighting and Body > Electrical Connectorsโ€บ Standard Ignition S-749 Brake Light Switch Connector
Part #: S-749

Standard Ignition S-749 Brake Light Switch Connector

500 vehicles fit this part
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Fitment: Chevrolet, GMC, Saab, Isuzu, Buick, Hummer, Cadillac, and Oldsmobile, Trailblazer, Traverse, Envoy, 9-7x, Ascender, Rainier, Express 1500, Express 2500, Express 3500, Silverado 2500 HD Classic, Silverado 3500 HD, Savana 1500, Savana 2500, Savana 3500, Sierra 2500 HD Classic, H2, Escalade, Escalade ESV, Escalade EXT, Avalanche 1500, Avalanche 2500, Silverado 1500, Silverado 1500 HD, Silverado 2500 HD, Silverado 3500, SSR, Suburban 1500, Suburban 2500, Tahoe, Trailblazer EXT, Envoy XL, Sierra 1500, Sierra 1500 HD, Sierra 2500 HD, Sierra 3500, Yukon, Yukon XL 1500, Yukon XL 2500, Astro, Blazer, Envoy XUV, Jimmy, Safari, S10, Silverado 2500, Sierra 2500, Sonoma, Bravada, H1, C2500, C3500, K2500, K3500, Hombre, C1500, C1500 Suburban, C2500 Suburban, K1500, K1500 Suburban, K2500 Suburban, Silverado, G30, G3500, G10, G20, G1500, and G2500
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Brake Light Switch Connector for GM Applications

Standard Ignition S-749 is a brake light switch connector built for electrical repair work where the original connector has heat damage, broken terminals, or intermittent contact. It uses high-grade materials to support solid conductivity and reliable signal transfer in brake light circuits.

Compatible with a wide range of Chevrolet, GMC, Cadillac, Buick, Hummer, Saab, and Isuzu vehicles, this connector is a direct-fit electrical repair solution for brake switch wiring on many GM platforms. Standard Ignition S-749 is commonly selected for brake light switch connector replacement on Chevrolet Silverado, GMC Sierra, and Chevrolet Express applications.

  • Brake light switch connector for electrical connector repair
  • Male connector with female pin-socket terminals
  • 6-terminal, 6-wire design with 7-inch harness length
  • Built for dependable conductivity and secure connections
  • Fits many GM trucks, vans, SUVs, and related platforms

Detailed Product Overview

Standard Ignition S-749 is engineered for technicians and do-it-yourself repairs where the brake switch connector needs to be restored without replacing the full harness. The connector design supports clean electrical contact at the brake light switch, helping maintain proper brake lamp operation and consistent circuit performance. This part number is also referenced in brake light switch connector searches for Silverado, Sierra, Tahoe, Yukon, and Express van repairs.

This part cross-references 1P1305 and EC207 for the same application.

What This Connector Helps Fix

  • Brake lights that do not illuminate consistently
  • Intermittent brake switch electrical connection
  • Heat-damaged or brittle connector housings
  • Corroded or loose terminal contact at the switch
  • Wiring repair needs on GM brake light circuits

Installation Notes and Tips

Inspect the brake switch terminals and surrounding wiring before installation. Match the connector style, terminal count, and harness length to the original part, and verify pin alignment before securing the repair. For best results, confirm vehicle-specific fitment for the exact year and model, especially on Chevrolet Silverado, GMC Sierra, and Chevrolet Express applications.

Quality Assurance

Standard Ignition focuses on electrical repair components made with materials selected for conductivity and connection integrity. The S-749 is part of a long-running pigtail and socket program developed to address common failure points in original equipment electrical connectors.

BrandStandard Ignition
Part NumberS-749
Connector GenderMale
Harness Length - inches7"
Terminal GenderFemale
Terminal TypePin Socket

This part fits 500 vehicles. Search below:

YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
2009ChevroletTrailblazerN/A
2009ChevroletTraverseN/A
2009GMCEnvoyN/A
2009Saab9-7xN/A
2008ChevroletTrailblazerN/A
2008GMCEnvoyN/A
2008IsuzuAscenderN/A
2008Saab9-7xN/A
2007BuickRainierN/A
2007ChevroletExpress 1500N/A
2007ChevroletExpress 2500N/A
2007ChevroletExpress 3500N/A
2007ChevroletSilverado 1500 ClassicN/A
2007ChevroletSilverado 2500 HD ClassicN/A
2007ChevroletSilverado 3500 HDN/A
2007ChevroletTrailblazerN/A
2007GMCEnvoyN/A
2007GMCSavana 1500N/A
2007GMCSavana 2500N/A
2007GMCSavana 3500N/A
2007GMCSierra 1500 ClassicN/A
2007GMCSierra 2500 HD ClassicN/A
2007HummerH2N/A
2007IsuzuAscenderN/A
2007Saab9-7xN/A
2006BuickRainierN/A
2006CadillacEscaladeN/A
2006CadillacEscalade ESVN/A
2006CadillacEscalade EXTN/A
2006ChevroletAvalanche 1500N/A
2006ChevroletAvalanche 2500N/A
2006ChevroletExpress 1500N/A
2006ChevroletExpress 2500N/A
2006ChevroletExpress 3500N/A
2006ChevroletSilverado 1500N/A
2006ChevroletSilverado 1500 HDN/ABlack; 6 Term. Female
2006ChevroletSilverado 2500 HDN/A
2006ChevroletSilverado 3500N/ABlack; 6 Term. Female
2006ChevroletSSRN/A
2006ChevroletSuburban 1500N/A
2006ChevroletSuburban 2500N/A
2006ChevroletTahoeN/A
2006ChevroletTrailblazerN/A
2006ChevroletTrailblazer EXTN/A
2006GMCEnvoyN/A
2006GMCEnvoy XLN/A
2006GMCSavana 1500N/A
2006GMCSavana 2500N/A
2006GMCSavana 3500N/A
2006GMCSierra 1500N/A
2006GMCSierra 1500 HDN/A
2006GMCSierra 2500 HDN/A
2006GMCSierra 3500N/A
2006GMCYukonN/A
2006GMCYukon XL 1500DenaliN/A
2006GMCYukon XL 2500N/A
2006HummerH2N/A
2006IsuzuAscenderN/A
2006Saab9-7xN/A
2005BuickRainierN/A
2005CadillacEscaladeN/A
2005CadillacEscalade ESVN/A
2005CadillacEscalade EXTN/A
2005ChevroletAstroN/A
2005ChevroletAvalanche 1500N/A
2005ChevroletAvalanche 2500N/A
2005ChevroletBlazerN/A
2005ChevroletExpress 1500N/A
2005ChevroletExpress 2500N/A
2005ChevroletExpress 3500N/A
2005ChevroletSilverado 1500N/A
2005ChevroletSilverado 1500 HDN/ABlack; 6 Term. Female
2005ChevroletSilverado 2500 HDN/A
2005ChevroletSilverado 3500N/ABlack; 6 Term. Female
2005ChevroletSSRN/A
2005ChevroletSuburban 1500N/A
2005ChevroletSuburban 2500N/A
2005ChevroletTahoeN/A
2005ChevroletTrailblazerN/A
2005ChevroletTrailblazer EXTN/A
2005GMCEnvoyN/A
2005GMCEnvoy XLN/A
2005GMCEnvoy XUVN/A
2005GMCJimmyN/A
2005GMCSafariN/A
2005GMCSavana 1500N/A
2005GMCSavana 2500N/A
2005GMCSavana 3500N/A
2005GMCSierra 1500N/A
2005GMCSierra 1500 HDN/A
2005GMCSierra 2500 HDN/A
2005GMCSierra 3500N/A
2005GMCYukonN/A
2005GMCYukon XL 1500DenaliN/A
2005GMCYukon XL 2500N/A
2005HummerH2N/A
2005IsuzuAscenderN/A
2005Saab9-7xN/A
2004BuickRainierN/ABlack; 6 Term. Female
2004CadillacEscaladeN/A
2004CadillacEscalade ESVN/A
2004CadillacEscalade EXTN/A
2004ChevroletAstroN/A
2004ChevroletAvalanche 1500N/A
2004ChevroletAvalanche 2500N/A
2004ChevroletBlazerN/A
2004ChevroletExpress 1500N/A
2004ChevroletExpress 2500N/A
2004ChevroletExpress 3500N/A
2004ChevroletS10N/A
2004ChevroletSilverado 1500N/A
2004ChevroletSilverado 2500N/ABlack; 6 Term. Female
2004ChevroletSilverado 2500 HDN/A
2004ChevroletSilverado 3500N/ABlack; 6 Term. Female
2004ChevroletSSRN/A
2004ChevroletSuburban 1500N/A
2004ChevroletSuburban 2500N/A
2004ChevroletTahoeN/A
2004ChevroletTrailblazerN/A
2004ChevroletTrailblazer EXTN/A
2004GMCEnvoyN/A
2004GMCEnvoy XLN/A
2004GMCEnvoy XUVN/A
2004GMCJimmyN/A
2004GMCSafariN/A
2004GMCSavana 1500N/A
2004GMCSavana 2500N/A
2004GMCSavana 3500N/A
2004GMCSierra 1500N/A
2004GMCSierra 2500N/A
2004GMCSierra 2500 HDN/A
2004GMCSierra 3500N/A
2004GMCSonomaN/A
2004GMCYukonN/A
2004GMCYukon XL 1500DenaliN/A
2004GMCYukon XL 2500N/A
2004HummerH2N/A
2004IsuzuAscenderN/A
2004OldsmobileBravadaN/ABlack; 6 Term. Female
2003CadillacEscaladeN/A
2003CadillacEscalade ESVN/A
2003CadillacEscalade EXTN/A
2003ChevroletAstroN/A
2003ChevroletAvalanche 1500N/A
2003ChevroletAvalanche 2500N/A
2003ChevroletBlazerN/A
2003ChevroletExpress 1500N/A
2003ChevroletExpress 2500N/A
2003ChevroletExpress 3500N/A
2003ChevroletS10N/A
2003ChevroletSilverado 1500N/A
2003ChevroletSilverado 2500 HDN/A
2003ChevroletSSRN/A
2003ChevroletSuburban 1500N/A
2003ChevroletSuburban 2500N/A
2003ChevroletTahoeN/A
2003ChevroletTrailblazerN/A
2003ChevroletTrailblazer EXTN/A
2003GMCEnvoyN/A
2003GMCEnvoy XLN/A
2003GMCJimmyN/A
2003GMCSafariN/A
2003GMCSavana 1500N/A
2003GMCSavana 2500N/A
2003GMCSavana 3500N/A
2003GMCSierra 1500 HDN/A
2003GMCSierra 2500N/A
2003GMCSierra 2500 HDN/A
2003GMCSierra 3500N/A
2003GMCSonomaN/A
2003GMCYukonN/A
2003GMCYukon XL 1500DenaliN/A
2003GMCYukon XL 2500N/A
2003HummerH2N/ABlack; 6 Term. Female
2003IsuzuAscenderN/A
2003OldsmobileBravadaN/A
2002CadillacEscaladeN/A
2002CadillacEscalade EXTN/A
2002ChevroletAstroN/A
2002ChevroletAvalanche 1500N/A
2002ChevroletAvalanche 2500N/A
2002ChevroletBlazerN/A
2002ChevroletExpress 1500N/A
2002ChevroletExpress 2500N/A
2002ChevroletExpress 3500N/A
2002ChevroletS10N/A
2002ChevroletSilverado 1500N/A
2002ChevroletSilverado 1500 HDN/A
2002ChevroletSilverado 2500N/A
2002ChevroletSilverado 2500 HDN/A
2002ChevroletSilverado 3500N/A
2002ChevroletSuburban 1500N/A
2002ChevroletSuburban 2500N/A
2002ChevroletTahoeN/A
2002ChevroletTrailblazerN/A
2002ChevroletTrailblazer EXTN/A
2002GMCEnvoyN/A
2002GMCEnvoy XLN/A
2002GMCJimmyN/A
2002GMCSafariN/A
2002GMCSavana 1500N/A
2002GMCSavana 2500N/A
2002GMCSavana 3500N/A
2002GMCSierra 1500N/A
2002GMCSierra 1500 HDN/A
2002GMCSierra 2500N/A
2002GMCSierra 2500 HDN/A
2002GMCSierra 3500N/A
2002GMCSonomaN/A
2002GMCYukonN/A
2002GMCYukon XL 1500N/A
2002GMCYukon XL 2500N/A
2002HummerH1N/A
2002OldsmobileBravadaN/A
2001ChevroletAstroN/A
2001ChevroletBlazerN/A
2001ChevroletC1500N/A
2001ChevroletExpress 1500N/A
2001ChevroletExpress 2500N/A
2001ChevroletExpress 3500N/A
2001ChevroletS10N/A
2001ChevroletSilverado 1500N/A
2001ChevroletSilverado 1500 HDN/A
2001ChevroletSilverado 2500N/A
2001ChevroletSilverado 2500 HDN/A
2001ChevroletSilverado 3500N/A
2001ChevroletSuburban 1500N/A
2001ChevroletSuburban 2500N/A
2001ChevroletTahoeN/A
2001GMCJimmyN/A
2001GMCSafariN/A
2001GMCSavana 1500N/A
2001GMCSavana 2500N/A
2001GMCSavana 3500N/A
2001GMCSierra 1500N/A
2001GMCSierra 1500 HDN/A
2001GMCSierra 2500N/A
2001GMCSierra 2500 HDN/A
2001GMCSierra 3500N/A
2001GMCSonomaN/A
2001GMCYukonN/A
2001GMCYukon XL 1500N/A
2001GMCYukon XL 2500N/A
2001OldsmobileBravadaN/A
2000CadillacEscaladeN/A
2000ChevroletAstroN/A
2000ChevroletBlazerN/A
2000ChevroletC2500N/A
2000ChevroletC3500N/A
2000ChevroletExpress 1500N/A
2000ChevroletExpress 2500N/A
2000ChevroletExpress 3500N/A
2000ChevroletK2500N/A
2000ChevroletK3500N/A
2000ChevroletS10N/A
2000ChevroletSilverado 1500N/A
2000ChevroletSilverado 2500N/A
2000ChevroletSuburban 1500N/A
2000ChevroletSuburban 2500N/A
2000ChevroletTahoeN/A
2000GMCC2500N/A
2000GMCC3500N/A
2000GMCJimmyN/A
2000GMCK2500N/A
2000GMCK3500N/A
2000GMCSafariN/A
2000GMCSavana 1500N/A
2000GMCSavana 2500N/A
2000GMCSavana 3500N/A
2000GMCSierra 1500N/A
2000GMCSierra 2500N/A
2000GMCSonomaN/A
2000GMCYukonN/A
2000GMCYukon XL 1500N/A
2000GMCYukon XL 2500N/A
2000IsuzuHombreN/A
2000OldsmobileBravadaN/A
1999CadillacEscaladeN/A
1999ChevroletAstroN/A
1999ChevroletBlazerN/A
1999ChevroletC1500N/A
1999ChevroletC1500 SuburbanN/A
1999ChevroletC2500N/A
1999ChevroletC2500 SuburbanN/A
1999ChevroletC3500N/A
1999ChevroletExpress 1500N/A
1999ChevroletExpress 2500N/A
1999ChevroletExpress 3500N/A
1999ChevroletK1500N/A
1999ChevroletK1500 SuburbanN/A
1999ChevroletK2500N/A
1999ChevroletK2500 SuburbanN/A
1999ChevroletK3500N/A
1999ChevroletS10N/A
1999ChevroletSilverado 1500N/A
1999ChevroletSilverado 2500N/A
1999ChevroletSuburban 1500N/A
1999ChevroletTahoeN/A
1999GMCC1500N/A
1999GMCC1500 SuburbanN/A
1999GMCC2500N/A
1999GMCC2500 SuburbanN/A
1999GMCC3500N/A
1999GMCJimmyN/A
1999GMCK1500N/A
1999GMCK1500 SuburbanN/A
1999GMCK2500N/A
1999GMCK2500 SuburbanN/A
1999GMCK3500N/A
1999GMCP3500Stripped ChassisN/A
1999GMCSafariN/A
1999GMCSavana 1500N/A
1999GMCSavana 2500N/A
1999GMCSavana 3500N/A
1999GMCSierra 1500N/A
1999GMCSierra 2500N/A
1999GMCSonomaN/A
1999GMCYukonN/A
1999IsuzuHombreN/A
1999OldsmobileBravadaN/A
1998ChevroletAstroN/A
1998ChevroletBlazerN/A
1998ChevroletC1500N/A
1998ChevroletC1500 SuburbanN/A
1998ChevroletC2500N/A
1998ChevroletC2500 SuburbanN/A
1998ChevroletC3500N/A
1998ChevroletExpress 1500N/A
1998ChevroletExpress 2500N/A
1998ChevroletExpress 3500N/A
1998ChevroletK1500N/A
1998ChevroletK1500 SuburbanN/A
1998ChevroletK2500N/A
1998ChevroletK2500 SuburbanN/A
1998ChevroletK3500N/A
1998ChevroletS10N/A
1998ChevroletSilveradoN/A
1998ChevroletSuburban 1500N/A
1998ChevroletTahoeN/A
1998GMCC1500N/A
1998GMCC1500 SuburbanN/A
1998GMCC2500N/A
1998GMCC2500 SuburbanN/A
1998GMCC3500N/A
1998GMCJimmyN/A
1998GMCK1500N/A
1998GMCK1500 SuburbanN/A
1998GMCK2500N/A
1998GMCK2500 SuburbanN/A
1998GMCK3500N/A
1998GMCP3500Stripped ChassisN/A
1998GMCSafariN/A
1998GMCSavana 1500N/A
1998GMCSavana 2500N/A
1998GMCSavana 3500N/A
1998GMCSonomaN/A
1998GMCYukonN/A
1998IsuzuHombreN/A
1998OldsmobileBravadaN/A
1997ChevroletAstroN/A
1997ChevroletBlazerN/A
1997ChevroletC1500N/A
1997ChevroletC1500 SuburbanN/A
1997ChevroletC2500N/A
1997ChevroletC2500 SuburbanN/A
1997ChevroletC3500N/A
1997ChevroletExpress 1500N/A
1997ChevroletExpress 2500N/A
1997ChevroletExpress 3500N/A
1997ChevroletK1500N/A
1997ChevroletK1500 SuburbanN/A
1997ChevroletK2500N/A
1997ChevroletK2500 SuburbanN/A
1997ChevroletK3500N/A
1997ChevroletS10N/A
1997ChevroletSilverado5.7LV8N/A
1997ChevroletSuburban 1500N/A
1997ChevroletTahoeN/A
1997GMCC1500N/A
1997GMCC1500 SuburbanN/A
1997GMCC2500N/A
1997GMCC2500 SuburbanN/A
1997GMCC3500N/A
1997GMCJimmyN/A
1997GMCK1500N/A
1997GMCK1500 SuburbanN/A
1997GMCK2500N/A
1997GMCK2500 SuburbanN/A
1997GMCK3500N/A
1997GMCSafariN/A
1997GMCSavana 1500N/A
1997GMCSavana 2500N/A
1997GMCSavana 3500N/A
1997GMCSonomaN/A
1997GMCYukonN/A
1997IsuzuHombreN/A
1997OldsmobileBravadaN/A
1996ChevroletAstroN/A
1996ChevroletBlazerN/A
1996ChevroletC1500N/A
1996ChevroletC1500 SuburbanN/A
1996ChevroletC2500N/A
1996ChevroletC2500 SuburbanN/A
1996ChevroletC3500N/A
1996ChevroletExpress 1500N/A
1996ChevroletExpress 2500N/A
1996ChevroletExpress 3500N/A
1996ChevroletG30N/A
1996ChevroletK1500N/A
1996ChevroletK1500 SuburbanN/A
1996ChevroletK2500N/A
1996ChevroletK2500 SuburbanN/A
1996ChevroletK3500N/A
1996ChevroletS10N/A
1996ChevroletSilverado5.7LV8N/A
1996ChevroletSuburban 1500N/A
1996ChevroletTahoeN/A
1996GMCC1500N/A
1996GMCC1500 SuburbanN/A
1996GMCC2500N/A
1996GMCC2500 SuburbanN/A
1996GMCC3500N/A
1996GMCG3500N/A
1996GMCJimmyN/A
1996GMCK1500N/A
1996GMCK1500 SuburbanN/A
1996GMCK2500N/A
1996GMCK2500 SuburbanN/A
1996GMCK3500N/A
1996GMCSafariN/A
1996GMCSavana 1500N/A
1996GMCSavana 2500N/A
1996GMCSavana 3500N/A
1996GMCSonomaN/A
1996GMCYukonN/A
1996IsuzuHombreN/A
1996OldsmobileBravadaN/A
1995ChevroletAstroN/A
1995ChevroletBlazerN/A
1995ChevroletC1500N/A
1995ChevroletC1500 SuburbanN/A
1995ChevroletC2500N/A
1995ChevroletC2500 SuburbanN/A
1995ChevroletC3500N/A
1995ChevroletG10N/A
1995ChevroletG20N/A
1995ChevroletG30N/A
1995ChevroletK1500N/A
1995ChevroletK1500 SuburbanN/A
1995ChevroletK2500N/A
1995ChevroletK2500 SuburbanN/A
1995ChevroletK3500N/A
1995ChevroletS10N/A
1995ChevroletSilverado5.7LV8N/A
1995ChevroletSuburban 1500N/A
1995ChevroletTahoeN/A
1995GMCC1500N/A
1995GMCC1500 SuburbanN/A
1995GMCC2500N/A
1995GMCC3500N/A
1995GMCG1500N/A
1995GMCG2500N/A
1995GMCG3500N/A
1995GMCJimmyN/A
1995GMCK1500N/A
1995GMCK1500 SuburbanN/A
1995GMCK2500N/A
1995GMCK2500 SuburbanN/A
1995GMCK3500N/A
1995GMCSafariN/A
1995GMCSonomaN/A
1995GMCYukonN/A
1994ChevroletAstroN/A
1994ChevroletC1500N/A
1994ChevroletC1500 SuburbanN/A
1994ChevroletC2500N/A
1994ChevroletC3500N/A
1994ChevroletG10N/A
1994ChevroletG20N/A
1994ChevroletG30N/A
1994ChevroletK1500N/A
1994ChevroletK1500 SuburbanN/A
1994ChevroletK2500N/A
1994ChevroletK2500 SuburbanN/A
1994ChevroletK3500N/A
1994ChevroletS10N/A
1994GMCC1500N/A
1994GMCC1500 SuburbanN/A
1994GMCC2500N/A
1994GMCC3500N/A
1994GMCG1500N/A
1994GMCG2500N/A
1994GMCG3500N/A
1994GMCK1500N/A
1994GMCK1500 SuburbanN/A
1994GMCK2500N/A
1994GMCK2500 SuburbanN/A
1994GMCK3500N/A
1994GMCSafariN/A
1994GMCSonomaN/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:

121027631P130557-4752673EC207PT5701PTC1139

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