The APDTY 756911 wiring harness pigtail connector is an 8-way weatherpack electrical connector used throughout select General Motors vehicles for throttle body, headlight, and various other electrical system connections. This replacement connector restores damaged or corroded OEM wiring without requiring complete harness replacement, directly replacing GM part numbers 13580112, 88986255, PT1572, and PT2628.
Key Takeaways
- 8-way weatherpack design provides sealed protection against moisture and corrosion
- Used for throttle body, headlight, and other electrical connections on select GM vehicles
- Direct replacement for OEM part numbers 13580112, 88986255, PT1572, PT2628
- Allows repair of damaged connector without replacing entire wiring harness
- Must verify exact fitment by matching OEM part numbers or comparing connector images
Buy APDTY 756911 directly from APDTY
What Is the APDTY 756911 Wiring Harness Pigtail Connector?
The APDTY 756911 is an 8-way weatherpack electrical connector pigtail designed for use across multiple electrical systems in select General Motors vehicles. This connector type features a sealed weatherpack design that protects electrical connections from moisture, dirt, and corrosion.
The connector is commonly used for:
- Electronic throttle body connections
- Headlight and lighting system wiring
- Various sensor and actuator connections throughout the vehicle
- Other electrical components requiring an 8-pin weatherpack connection
The pigtail design includes a short length of wire terminated in the connector housing, allowing technicians to splice into existing vehicle wiring to replace damaged or corroded connector ends without purchasing expensive complete harness assemblies.
What Are the Signs You Need to Replace This Connector?
Electrical connector failures present in several recognizable ways:
- Intermittent electrical operation: Connected component works sporadically, especially over bumps or when wiggling wires
- Corrosion visible in connector pins: Green, white, or blue deposits on metal terminals indicate moisture intrusion
- Melted or burned connector housing: Heat damage from poor connections or excessive current draw
- Broken locking tabs: Connector will not securely latch, allowing terminals to back out or separate
- Check engine light with throttle body codes: P0120-P0124 range codes may indicate throttle position sensor wiring issues when connector is used for throttle body
- Headlight malfunctions: One or both headlights fail to operate properly when connector is used in lighting circuits
- Frayed or broken wiring at connector entry point: Wire insulation damage where wires enter the connector body
Because this connector is used across multiple systems, symptoms will vary depending on which component the connector serves. Always diagnose the specific circuit before replacing connectors.
Which Vehicles Does the APDTY 756911 Fit?
The APDTY 756911 is compatible with select GM (General Motors) vehicles that use an 8-way weatherpack connector in various electrical systems. Because this is a universal-style connector used across multiple model years and platforms, specific vehicle fitment cannot be guaranteed by year/make/model alone.
To verify proper fitment:
- Compare your existing connector to the product images to ensure exact physical match
- Verify your original connector matches one of these OEM part numbers: 13580112, 88986255, PT1572, or PT2628
- Count the number of terminals (must be 8-way configuration)
- Check that the connector keying and locking mechanism match your original
Do not rely solely on vehicle year/make/model for fitment verification. Always confirm part number compatibility or connector appearance before ordering. Consult APDTY's live compatibility chart or contact their support team if you are uncertain about fitment for your specific application.
APDTY 756911 Specifications and Part Number Cross-Reference
| Specification | Detail |
|---|---|
| APDTY Part Number | 756911 |
| Connector Type | 8-Way Weatherpack |
| Common Applications | Throttle Body, Headlight, Various Electrical Systems |
| Manufacturer Compatibility | Select GM Vehicles |
| Replaces OEM Part Numbers | 13580112, 88986255, PT1572, PT2628 |
| Connector Housing Material | Weather-resistant plastic |
| Included | Connector housing with pigtail wiring |
How Do You Install a Wiring Harness Pigtail Connector?
Installing a pigtail connector requires basic electrical repair skills and proper tools. This is a general overview; always consult vehicle-specific service information for your application:
- Disconnect the battery: Always disconnect the negative battery terminal before working on vehicle electrical systems to prevent short circuits and potential airbag deployment
- Remove the damaged connector: Cut the vehicle harness wiring several inches back from the damaged connector, providing sufficient wire length for splicing
- Strip wire insulation: Remove approximately 1/4 inch of insulation from each wire end on both the vehicle harness and pigtail connector
- Match wire colors: Identify which wires connect to which by color code or pin position. Use a wiring diagram for your specific application
- Make connections: Use solder and heat-shrink tubing or quality crimp connectors to join each wire. Never use twist-and-tape connections for automotive wiring
- Insulate all connections: Each wire splice must be individually insulated with heat-shrink tubing to prevent short circuits
- Secure the repair: Use electrical tape or wire loom to bundle the repair and protect it from abrasion
- Test operation: Reconnect the battery and verify the connected component operates correctly
Safety Note: If this connector is used in an airbag-related circuit (such as certain steering column sensors), incorrect wiring can prevent airbag deployment in a crash or cause inadvertent deployment. Always follow manufacturer service procedures when working near airbag system components.
Why Choose the APDTY 756911 Over a Complete Harness Replacement?
Pigtail connector repairs offer several advantages over purchasing entire wiring harness assemblies:
- Cost savings: Pigtail connectors cost a fraction of complete harness assemblies, which can run hundreds of dollars
- Reduced labor time: Splicing a connector takes minutes compared to hours required to remove and route complete harnesses
- Targeted repair: Addresses the actual failure point without replacing functional wiring
- Availability: Pigtail connectors are readily available while complete harnesses may be on backorder or discontinued for older vehicles
- Prevents damage during installation: Complete harness replacement risks breaking clips and damaging other components during removal and installation
The APDTY 756911 provides a professional-grade repair solution when the wiring itself is intact but the connector has failed due to corrosion, physical damage, or terminal issues.
Frequently asked questions
Does the APDTY 756911 come with terminals pre-installed?
The APDTY 756911 comes as a pigtail connector, which typically includes the connector housing with terminals and a short length of wire. Verify product images to confirm exact configuration. You will need to splice these wires to your vehicle's existing harness.
Can I use this connector for any 8-way electrical connection?
Only use this connector if your original matches one of the replaced OEM part numbers (13580112, 88986255, PT1572, PT2628) or the connector configuration exactly matches your original. Different 8-way connectors may have different terminal types, wire gauges, or keying that are not interchangeable.
What tools do I need to install this pigtail connector?
You will need wire strippers, soldering equipment or quality crimp connectors, heat-shrink tubing, electrical tape, and a heat gun. A wiring diagram for your specific vehicle application is also recommended to ensure correct wire-to-wire connections.
Will this connector work on non-GM vehicles?
The APDTY 756911 is designed for select GM vehicles. While some other manufacturers may use similar connectors, always verify part number compatibility or exact physical match before attempting to use this connector on non-GM applications.
The APDTY 756911 wiring harness pigtail connector provides a cost-effective, professional solution for repairing damaged 8-way weatherpack connections on select GM vehicles. Whether your throttle body connector has corroded, your headlight wiring has broken, or any other 8-way connector has failed, this pigtail allows targeted repair without the expense and labor of complete harness replacement. Verify fitment by matching OEM part numbers 13580112, 88986255, PT1572, or PT2628, or by comparing connector images to your original. Restore reliable electrical connections and get your GM vehicle back to proper operation with this direct-replacement connector from APDTY.