HomeStandard Ignition S-781 HVAC Blower Control Switch Connector
Part #: S-781

Standard Ignition S-781 HVAC Blower Control Switch Connector

⚙️ 15 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, F-100, F-250, and F-350
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Overview of Standard Ignition HVAC Blower Control Switch Connector

The Standard Ignition S-781 HVAC Blower Control Switch Connector is designed to provide reliable electrical connectivity for the blower control switch in Ford trucks. Specifically engineered for Ford F-100, F-250, and F-350 models, this connector ensures proper function of the HVAC blower system.

  • Male connector gender with one connector quantity
  • Includes a pigtail assembly for straightforward wiring
  • Five female blade terminals for secure electrical contact
  • Five wires included for complete connection setup
  • Compatible with Ford F-100, F-250, and F-350 HVAC systems

Detailed Product Description

The Standard Ignition S-781 is a male HVAC blower control switch connector featuring a single connector with five female blade terminals. This pigtail assembly includes five wires, allowing for a direct and secure connection to the blower control switch. The blade terminal type is designed to provide a stable and corrosion-resistant electrical interface, which is critical for maintaining consistent HVAC blower operation. This connector is specifically compatible with Ford F-100, F-250, and F-350 models, ensuring proper fitment and function within these vehicles' HVAC systems.

Common Applications and Issues Addressed

  • Restores electrical connection to the HVAC blower control switch
  • Resolves intermittent blower operation caused by faulty connectors
  • Replaces damaged or corroded blower control switch connectors
  • Ensures proper signal transmission for blower speed control
  • Supports HVAC system reliability in Ford F-100, F-250, and F-350 trucks

Installation Notes and Tips

When installing the Standard Ignition S-781 connector, ensure the vehicle's battery is disconnected to prevent electrical shorts. Verify that the connector terminals align correctly with the blower control switch terminals to avoid damage. Use appropriate tools to secure the blade terminals and confirm that the pigtail assembly wiring is routed away from heat sources and moving parts. Proper installation will help maintain consistent HVAC blower performance.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing dependable performance for HVAC electrical components. The S-781 connector undergoes quality checks to ensure terminal integrity and wire durability. Please refer to Standard Ignition's warranty policy for specific coverage details related to this HVAC blower control switch connector.

BrandStandard Ignition
Part NumberS-781
Connector GenderMale
Connector Quantity1
ContentsPigtail assembly
Terminal GenderFemale
Terminal Quantity5
Terminal TypeBlade
Wire Quantity5

This part fits 15 vehicles. Search below:

YearMakeModelPositionNotes
1972FordF-100N/A
1972FordF-250N/A
1972FordF-350N/A
1971FordF-100N/A
1971FordF-250N/A
1971FordF-350N/A
1970FordF-100N/A
1970FordF-250N/A
1970FordF-350N/A
1969FordF-100N/A
1969FordF-250N/A
1969FordF-350N/A
1968FordF-100N/A
1968FordF-250N/A
1968FordF-350N/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:

88860588EC217PT5704

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