OE Quality
60-Day Returns

Standard Ignition S-1258 Junction Block Connector
Reliable Junction Block Connector for Chevrolet, GMC, and Oldsmobile
The Standard Ignition S-1258 junction block connector is designed to provide secure and efficient electrical connections for select Chevrolet, GMC, and Oldsmobile vehicles. Engineered with durable materials, this connector supports reliable wiring in various automotive electrical systems.
- Connector Gender: Male
- Includes Butt Splices for easy wire joining
- Harness Length: 16 inches
- Terminal Gender: Female
- Two Blade Terminals included
- Supports two wires for versatile applications
Durable Electrical Connector with Precise Specifications
The S-1258 junction block connector from Standard Ignition features a male connector designed to mate with female terminals, ensuring a secure fit. The included butt splices simplify the process of joining wires, while the 16-inch harness length offers flexibility during installation. Equipped with two female blade terminals, this connector supports two-wire configurations commonly found in electrical systems of Chevrolet Bravada, GMC Canyon, and Oldsmobile models. Its robust construction helps maintain consistent electrical flow and reduces the risk of connection failures.
Compatible Vehicles and Applications
This junction block connector is compatible with a range of Chevrolet, GMC, and Oldsmobile vehicles, including:
- Chevrolet Bravada, Colorado, Express 1500/2500/3500, SSR, Trailblazer, Trailblazer EXT
- GMC Canyon, Envoy, Envoy XL, Envoy XUV, Savana 1500/2500/3500
- Oldsmobile models within similar electrical system configurations
Common Uses and Problem Solving
- Replacing damaged or corroded junction block connectors
- Restoring reliable electrical connections in vehicle wiring harnesses
- Facilitating repairs involving blade terminal connections
- Upgrading wiring harnesses for improved electrical continuity
- Ensuring secure connections in lighting and body electrical systems
Installation Notes and Tips
- Verify vehicle compatibility before installation using make and model details
- Use proper crimping tools for butt splices to ensure secure wire connections
- Inspect terminals for corrosion or damage prior to installation
- Route the 16-inch harness carefully to avoid pinching or abrasion
- Test electrical continuity after installation to confirm proper connection
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring dependable performance. The S-1258 junction block connector undergoes rigorous quality control to maintain consistent electrical integrity. While specific warranty details may vary, Standard Ignition typically offers coverage against manufacturing defects to support long-term reliability.
| Brand | Standard Ignition |
|---|---|
| Part Number | S-1258 |
| Connector Gender | Male |
| Contents | Includes Butt Splices |
| Harness Length - inches | 16" |
| Terminal Gender | Female |
| Terminal Type | Blade Terminals |
This part fits 44 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2009 | Chevrolet | Colorado | N/A | |
| 2009 | Chevrolet | Trailblazer | N/A | Brown; 2 Term. Female |
| 2009 | GMC | Canyon | N/A | |
| 2009 | GMC | Envoy | N/A | Brown; 2 Term. Female |
| 2007 | GMC | Savana 1500 | N/A | Brown; 2 Term. Female |
| 2007 | GMC | Savana 2500 | N/A | Brown; 2 Term. Female |
| 2007 | GMC | Savana 3500 | N/A | Brown; 2 Term. Female |
| 2006 | Chevrolet | Express 1500 | N/A | Brown; 2 Term. Female |
| 2006 | Chevrolet | Express 2500 | N/A | Brown; 2 Term. Female |
| 2006 | Chevrolet | Express 3500 | N/A | Brown; 2 Term. Female |
| 2006 | GMC | Savana 1500 | N/A | Brown; 2 Term. Female |
| 2006 | GMC | Savana 2500 | N/A | Brown; 2 Term. Female |
| 2006 | GMC | Savana 3500 | N/A | Brown; 2 Term. Female |
| 2005 | Chevrolet | Express 1500 | N/A | Brown; 2 Term. Female |
| 2005 | Chevrolet | Express 2500 | N/A | Brown; 2 Term. Female |
| 2005 | Chevrolet | Express 3500 | N/A | Brown; 2 Term. Female |
| 2005 | Chevrolet | SSR | N/A | Brown; 2 Term. Female |
| 2005 | Chevrolet | Trailblazer | N/A | |
| 2005 | Chevrolet | Trailblazer EXT | N/A | |
| 2005 | GMC | Envoy | N/A | |
| 2005 | GMC | Envoy XL | N/A | |
| 2005 | GMC | Envoy XUV | N/A | |
| 2005 | GMC | Savana 1500 | N/A | Brown; 2 Term. Female |
| 2005 | GMC | Savana 2500 | N/A | Brown; 2 Term. Female |
| 2005 | GMC | Savana 3500 | N/A | Brown; 2 Term. Female |
| 2004 | Chevrolet | Express 1500 | N/A | Brown; 2 Term. Female |
| 2004 | Chevrolet | Express 2500 | N/A | Brown; 2 Term. Female |
| 2004 | Chevrolet | Express 3500 | N/A | Brown; 2 Term. Female |
| 2004 | Chevrolet | Trailblazer | N/A | Brown; 2 Term. Female |
| 2004 | Chevrolet | Trailblazer EXT | N/A | Brown; 2 Term. Female |
| 2004 | GMC | Envoy | N/A | Brown; 2 Term. Female |
| 2004 | GMC | Envoy XL | N/A | Brown; 2 Term. Female |
| 2004 | GMC | Envoy XUV | N/A | Brown; 2 Term. Female |
| 2004 | GMC | Savana 1500 | N/A | Brown; 2 Term. Female |
| 2004 | GMC | Savana 2500 | N/A | Brown; 2 Term. Female |
| 2004 | GMC | Savana 3500 | N/A | Brown; 2 Term. Female |
| 2004 | Oldsmobile | Bravada | N/A | Brown; 2 Term. Female |
| 2003 | Chevrolet | Express 1500 | N/A | Brown; 2 Term. Female |
| 2003 | Chevrolet | Express 2500 | N/A | Brown; 2 Term. Female |
| 2003 | Chevrolet | Express 3500 | N/A | Brown; 2 Term. Female |
| 2003 | Chevrolet | SSR | N/A | Brown; 2 Term. Female |
| 2003 | GMC | Savana 1500 | N/A | Brown; 2 Term. Female |
| 2003 | GMC | Savana 2500 | N/A | Brown; 2 Term. Female |
| 2003 | GMC | Savana 3500 | N/A | Brown; 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.