Standard Ignition S-977 Door Harness Connector

Name: Standard Ignition S-977 Door Harness Connector
Brand: Standard Ignition
SKU: FBHK-S-977
Price: 44.87 USD
Availability: InStock

122 vehicles fit this part

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OE Direct Replacement — Bolt-on fit, no modifications needed

Fitment: Buick, Cadillac, Chevrolet, GMC, and Oldsmobile, Avalanche 1500, Avalanche 2500, Bravada, Envoy, Envoy XL, Envoy XUV, Escalade, Escalade ESV, Escalade EXT, Rainier, Sierra 1500, Sierra 1500 HD, Sierra 1500 HD Classic, Sierra 2500, Sierra 2500 HD, Sierra 3500, Sierra 3500 Classic, Sierra 3500 HD, Silverado 1500, Silverado 1500 HD, Silverado 1500 HD Classic, Silverado 2500, Silverado 2500 HD, Silverado 3500, Silverado 3500 HD, SSR, Suburban 1500, Suburban 2500, Tahoe, Trailblazer, Trailblazer EXT, Yukon, Yukon XL 1500, and Yukon XL 2500

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Door Harness Connector for GM Applications

Standard Ignition S-977 is a door harness connector built for electrical repair work where a damaged factory connector can interrupt power or signal flow. It uses high-grade materials to support strong conductivity and a secure connection on select Chevrolet, GMC, Buick, Cadillac, and Oldsmobile vehicles.

Fits 2002-2008 Chevrolet Trailblazer, N/A; 2002-2008 GMC Envoy, N/A; and other GM truck and SUV applications listed below. Standard Ignition S-977 is a direct-fit electrical connector solution for door harness repair on vehicles with the matching blue 2-terminal female connector style.

Key Features

Door harness connector for electrical connector repair
Male connector gender with female pin socket terminals
2-wire design with 17-inch harness length
Includes butt splices for wire repair work
Built with materials selected for reliable conductivity and connection quality
Fits a wide range of GM trucks, SUVs, and utility vehicles

Detailed Description

Standard Ignition S-977 is engineered for technicians replacing a failed door harness connector on GM platforms. The connector design supports clean electrical restoration where broken, corroded, or heat-damaged terminals have affected door-related circuits. This part number is commonly searched as S-977 for Chevrolet Silverado, GMC Sierra, Trailblazer, Envoy, and related GM applications.

This part cross-references Hygrade Tuneup 1451 for the same application. It also cross-references 1P2083 and 15306417 for select applications.

What It Helps Fix

Intermittent door electrical operation caused by damaged connector terminals
Open circuits from corrosion, heat, or terminal wear
Broken wiring at the door harness connection point
Poor contact at the factory connector interface
Electrical faults in door-related harness repairs on GM trucks and SUVs

Installation Notes and Tips

Verify connector style, terminal count, and wire count before installation.
Match the blue 2-terminal female configuration shown in the fitment notes.
Inspect the harness for heat damage or corrosion before splicing.
Use proper crimping and sealing practices when joining the repair wires.
Confirm fitment against the vehicle application list for Chevrolet Silverado, GMC Sierra, Buick Rainier, Cadillac Escalade, and related models.

Quality Assurance

Standard Ignition draws on decades of electrical parts development to address common failure points found in original equipment connectors. S-977 is built to restore dependable electrical contact in the applications listed and to support technician-focused repair work.

Brand	Standard Ignition
Part Number	S-977
Connector Gender	Male
Connector Quantity	1
Contents	Includes butt splices
Harness Length - inches	17"
Terminal Gender	Female
Terminal Quantity	2
Terminal Type	Pin socket
Wire Quantity	2

This part fits 122 vehicles. Search below:

Year	Make	Model	Position	Notes
2008	Chevrolet	Trailblazer	N/A	Blue; 2 Term. Female
2008	GMC	Envoy	N/A	Blue; 2 Term. Female
2007	Buick	Rainier	N/A	Blue; 2 Term. Female
2007	Chevrolet	Silverado 1500	N/A	Blue; 2 Term. Female
2007	Chevrolet	Silverado 1500 HD Classic	N/A	Blue; 2 Term. Female
2007	Chevrolet	Silverado 2500 HD	N/A	Blue; 2 Term. Female
2007	Chevrolet	Silverado 3500	N/A	Blue; 2 Term. Female
2007	Chevrolet	Silverado 3500 HD	N/A	Blue; 2 Term. Female
2007	Chevrolet	Trailblazer	N/A	Blue; 2 Term. Female
2007	GMC	Envoy	N/A	Blue; 2 Term. Female
2007	GMC	Sierra 1500	N/A	Blue; 2 Term. Female
2007	GMC	Sierra 1500 HD Classic	N/A	Blue; 2 Term. Female
2007	GMC	Sierra 2500 HD	N/A	Blue; 2 Term. Female
2007	GMC	Sierra 3500 Classic	N/A	Blue; 2 Term. Female
2007	GMC	Sierra 3500 HD	N/A	Blue; 2 Term. Female
2006	Buick	Rainier	N/A	Blue; 2 Term. Female
2006	Cadillac	Escalade	N/A	2 Term. Female
2006	Cadillac	Escalade ESV	N/A	2 Term. Female
2006	Cadillac	Escalade EXT	N/A	2 Term. Female
2006	Chevrolet	Avalanche 1500	N/A	Blue; 2 Term. Female
2006	Chevrolet	Avalanche 2500	N/A	Blue; 2 Term. Female
2006	Chevrolet	Silverado 1500	N/A	Blue; 2 Term. Female
2006	Chevrolet	Silverado 1500 HD	N/A	Blue; 2 Term. Female
2006	Chevrolet	Silverado 2500 HD	N/A	Blue; 2 Term. Female
2006	Chevrolet	Silverado 3500	N/A	Blue; 2 Term. Female
2006	Chevrolet	SSR	N/A	Blue; 2 Term. Female
2006	Chevrolet	Suburban 1500	N/A	Blue; 2 Term. Female
2006	Chevrolet	Suburban 2500	N/A	Blue; 2 Term. Female
2006	Chevrolet	Tahoe	N/A	Blue; 2 Term. Female
2006	Chevrolet	Trailblazer	N/A	Blue; 2 Term. Female
2006	Chevrolet	Trailblazer EXT	N/A	Blue; 2 Term. Female
2006	GMC	Envoy	N/A	Blue; 2 Term. Female
2006	GMC	Envoy XL	N/A	Blue; 2 Term. Female
2006	GMC	Sierra 1500	N/A	Blue; 2 Term. Female
2006	GMC	Sierra 1500 HD	N/A	Blue; 2 Term. Female
2006	GMC	Sierra 2500 HD	N/A	Blue; 2 Term. Female
2006	GMC	Sierra 3500	N/A	Blue; 2 Term. Female
2006	GMC	Yukon	N/A	Blue; 2 Term. Female
2006	GMC	Yukon XL 1500	N/A	Blue; 2 Term. Female
2006	GMC	Yukon XL 2500	N/A	Blue; 2 Term. Female
2005	Buick	Rainier	N/A	Blue; 2 Term. Female
2005	Cadillac	Escalade	N/A	2 Term. Female
2005	Cadillac	Escalade ESV	N/A	2 Term. Female
2005	Cadillac	Escalade EXT	N/A	2 Term. Female
2005	Chevrolet	Avalanche 1500	N/A	Blue; 2 Term. Female
2005	Chevrolet	Avalanche 2500	N/A	Blue; 2 Term. Female
2005	Chevrolet	Silverado 1500	N/A	Blue; 2 Term. Female
2005	Chevrolet	Silverado 1500 HD	N/A	Blue; 2 Term. Female
2005	Chevrolet	Silverado 2500 HD	N/A	Blue; 2 Term. Female
2005	Chevrolet	Silverado 3500	N/A	Blue; 2 Term. Female
2005	Chevrolet	Suburban 1500	N/A	Blue; 2 Term. Female
2005	Chevrolet	Suburban 2500	N/A	Blue; 2 Term. Female
2005	Chevrolet	Tahoe	N/A	Blue; 2 Term. Female
2005	Chevrolet	Trailblazer	N/A	Blue; 2 Term. Female
2005	Chevrolet	Trailblazer EXT	N/A	Blue; 2 Term. Female
2005	GMC	Envoy	N/A	Blue; 2 Term. Female
2005	GMC	Envoy XL	N/A	Blue; 2 Term. Female
2005	GMC	Envoy XUV	N/A	Blue; 2 Term. Female
2005	GMC	Sierra 1500	N/A	Blue; 2 Term. Female
2005	GMC	Sierra 1500 HD	N/A	Blue; 2 Term. Female
2005	GMC	Sierra 2500 HD	N/A	Blue; 2 Term. Female
2005	GMC	Sierra 3500	N/A	Blue; 2 Term. Female
2005	GMC	Yukon	N/A	Blue; 2 Term. Female
2005	GMC	Yukon XL 1500	N/A	Blue; 2 Term. Female
2005	GMC	Yukon XL 2500	N/A	Blue; 2 Term. Female
2004	Buick	Rainier	N/A	Blue; 2 Term. Female
2004	Cadillac	Escalade	N/A	2 Term. Female
2004	Cadillac	Escalade ESV	N/A	2 Term. Female
2004	Cadillac	Escalade EXT	N/A	2 Term. Female
2004	Chevrolet	Avalanche 1500	N/A	Blue; 2 Term. Female
2004	Chevrolet	Avalanche 2500	N/A	Blue; 2 Term. Female
2004	Chevrolet	Silverado 1500	N/A	Blue; 2 Term. Female
2004	Chevrolet	Silverado 2500	N/A	Blue; 2 Term. Female
2004	Chevrolet	Silverado 2500 HD	N/A	Blue; 2 Term. Female
2004	Chevrolet	Silverado 3500	N/A	Blue; 2 Term. Female
2004	Chevrolet	Suburban 1500	N/A	Blue; 2 Term. Female
2004	Chevrolet	Suburban 2500	N/A	Blue; 2 Term. Female
2004	Chevrolet	Tahoe	N/A	Blue; 2 Term. Female
2004	Chevrolet	Trailblazer	N/A	Blue; 2 Term. Female
2004	Chevrolet	Trailblazer EXT	N/A	Blue; 2 Term. Female
2004	GMC	Envoy	N/A	Blue; 2 Term. Female
2004	GMC	Envoy XL	N/A	Blue; 2 Term. Female
2004	GMC	Envoy XUV	N/A	Blue; 2 Term. Female
2004	GMC	Sierra 1500	N/A	Blue; 2 Term. Female
2004	GMC	Sierra 2500	N/A	Blue; 2 Term. Female
2004	GMC	Sierra 2500 HD	N/A	Blue; 2 Term. Female
2004	GMC	Sierra 3500	N/A	Blue; 2 Term. Female
2004	GMC	Yukon	N/A	Blue; 2 Term. Female
2004	GMC	Yukon XL 1500	N/A	Blue; 2 Term. Female
2004	GMC	Yukon XL 2500	N/A	Blue; 2 Term. Female
2004	Oldsmobile	Bravada	N/A	Blue; 2 Term. Female
2003	Cadillac	Escalade	N/A	2 Term. Female
2003	Cadillac	Escalade ESV	N/A	2 Term. Female
2003	Cadillac	Escalade EXT	N/A	2 Term. Female
2003	Chevrolet	Avalanche 1500	N/A	Blue; 2 Term. Female
2003	Chevrolet	Avalanche 2500	N/A	Blue; 2 Term. Female
2003	Chevrolet	Silverado 1500	N/A	Blue; 2 Term. Female
2003	Chevrolet	Silverado 1500 HD	N/A	Blue; 2 Term. Female
2003	Chevrolet	Silverado 2500	N/A	Blue; 2 Term. Female
2003	Chevrolet	Silverado 2500 HD	N/A	Blue; 2 Term. Female
2003	Chevrolet	Silverado 3500	N/A	Blue; 2 Term. Female
2003	Chevrolet	Suburban 1500	N/A	Blue; 2 Term. Female
2003	Chevrolet	Suburban 2500	N/A	Blue; 2 Term. Female
2003	Chevrolet	Tahoe	N/A	Blue; 2 Term. Female
2003	Chevrolet	Trailblazer	N/A	Blue; 2 Term. Female
2003	Chevrolet	Trailblazer EXT	N/A	Blue; 2 Term. Female
2003	GMC	Envoy	N/A	Blue; 2 Term. Female
2003	GMC	Envoy XL	N/A	Blue; 2 Term. Female
2003	GMC	Sierra 1500	N/A	Blue; 2 Term. Female
2003	GMC	Sierra 1500 HD	N/A	Blue; 2 Term. Female
2003	GMC	Sierra 2500	N/A	Blue; 2 Term. Female
2003	GMC	Sierra 2500 HD	N/A	Blue; 2 Term. Female
2003	GMC	Sierra 3500	N/A	Blue; 2 Term. Female
2003	GMC	Yukon	N/A	Blue; 2 Term. Female
2003	GMC	Yukon XL 1500	N/A	Blue; 2 Term. Female
2003	GMC	Yukon XL 2500	N/A	Blue; 2 Term. Female
2003	Oldsmobile	Bravada	N/A	Blue; 2 Term. Female
2002	Chevrolet	Trailblazer	N/A	Blue; 2 Term. Female
2002	Chevrolet	Trailblazer EXT	N/A	Blue; 2 Term. Female
2002	GMC	Envoy	N/A	Blue; 2 Term. Female
2002	GMC	Envoy XL	N/A	Blue; 2 Term. Female
2002	Oldsmobile	Bravada	N/A	Blue; 2 Term. Female

* 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:

1451153064171P2083EC449PT5854PTA2454

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