HomeElectrical, Lighting and Body > Electrical ConnectorsStandard Ignition S-686 Headlight Dimmer Switch Connector
Part #: S-686

Standard Ignition S-686 Headlight Dimmer Switch Connector

⚙️ 44 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: Chevrolet, Geo, Pontiac, Saturn, Dodge, Mercury, Mitsubishi, and Eagle, S10, Metro, Firebird, SC2, Dakota, Capri, Stealth, 3000GT, Sprint, SC, Talon, Eclipse, Daytona, and Shadow
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Reliable Headlight Dimmer Switch Connector for Select Vehicles

The Standard Ignition S-686 headlight dimmer switch connector is designed to provide a secure and precise electrical connection for your vehicle's lighting system. Engineered to meet OEM specifications, this connector ensures consistent performance for Chevrolet, Dodge, Geo, Mercury, Mitsubishi, Pontiac, and Saturn models.

  • Connector Gender: Male
  • Connector Quantity: 1
  • Connector Shape: Trapezoidal
  • Terminal Gender: Female
  • Terminal Quantity: 3
  • Terminal Type: Blade
  • Wire Quantity: 3

Technical Details and Compatibility

The S-686 headlight dimmer switch connector features a trapezoidal male connector housing with three female blade terminals, designed to accommodate three wires. This configuration ensures a reliable electrical connection for the headlight dimmer switch circuit. The blade-type terminals provide secure contact and ease of installation. Compatible with a range of vehicles including Chevrolet S10, Dodge Dakota, Geo Metro, Mercury Capri, Mitsubishi 3000GT, Pontiac Firebird, Saturn SC, and others, this connector supports proper headlight dimmer switch function across multiple models.

Applications and Problem Resolution

This headlight dimmer switch connector is used to restore or maintain the electrical connection between the headlight dimmer switch and the vehicle wiring harness. It addresses common issues such as:

  • Intermittent or non-functioning headlight dimmer switch operation
  • Corroded or damaged connector terminals causing poor electrical contact
  • Loose or broken wiring connections in the headlight circuit
  • Replacement of worn or faulty connectors to ensure lighting system reliability

Installation Notes and Tips

When installing the Standard Ignition S-686 connector, ensure the following:

  • Disconnect the vehicle battery before beginning installation to prevent electrical shorts
  • Verify the connector orientation matches the trapezoidal shape for proper fit
  • Inspect wiring for damage and replace if necessary before connecting
  • Use appropriate tools to secure blade terminals firmly without damaging them
  • Test headlight dimmer switch operation after installation to confirm proper function

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards, ensuring durability and reliable performance. The S-686 headlight dimmer switch connector undergoes rigorous quality control to maintain consistent electrical connectivity. This product is backed by Standard Ignition's limited warranty against defects in material and workmanship, providing confidence in your purchase.

BrandStandard Ignition
Part NumberS-686
Connector GenderMale
Connector ShapeTrapezoidal
Terminal GenderFemale
Terminal TypeBlade

This part fits 44 vehicles. Search below:

YearMakeModelPositionNotes
1997ChevroletS10N/Aw/ Sealed Headlights
1997GeoMetroN/Aw/ Sealed Headlights
1997PontiacFirebirdN/AHigh Beam - Compatible with various models and years, please verify the connector type and fitment before purchasing.
1996ChevroletS10N/Aw/ Sealed Headlights
1996GeoMetroN/Aw/ Sealed Headlights
1996PontiacFirebirdN/A
1996SaturnSC2N/A
1995ChevroletS10N/Aw/ Sealed Headlights
1995DodgeDakotaN/AComplete Assembly; Black; 3 Term.
1995GeoMetroN/Aw/ Sealed Headlights
1995PontiacFirebirdN/A
1995SaturnSC2N/A
1994ChevroletS10N/Aw/ Sealed Headlights
1994MercuryCapriN/A
1994PontiacFirebirdN/A
1994SaturnSC2N/A
1993DodgeStealthN/A
1993MercuryCapriN/A
1993Mitsubishi3000GTN/A
1993PontiacFirebirdN/A
1993SaturnSC2N/A
1992ChevroletSprintN/Aw/ Sealed Headlights
1992DodgeStealthN/A
1992MercuryCapriN/A
1992Mitsubishi3000GTN/A
1992PontiacFirebirdN/A
1992SaturnSCN/A
1991ChevroletSprintN/Aw/ Sealed Headlights
1991DodgeStealthN/A
1991MercuryCapriN/A
1991Mitsubishi3000GTN/A
1991MitsubishiEclipseN/A
1991PontiacFirebirdN/A
1991SaturnSCN/A
1990ChevroletSprintN/Aw/ Sealed Headlights
1990DodgeDaytonaN/AInstrument Panel Dimmer Switch Complete Assembly
1990MitsubishiEclipseN/A
1989ChevroletSprintN/Aw/ Sealed Headlights
1989DodgeDakotaN/AInstrument Panel Dimmer Switch Complete Assembly
1989DodgeDaytonaN/AInstrument Panel Dimmer Switch Complete Assembly
1988DodgeDaytonaN/AInstrument Panel Dimmer Switch Complete Assembly
1988DodgeShadowN/AInstrument Panel Dimmer Switch Complete Assembly
1987DodgeDaytonaN/A
1987DodgeShadowN/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:

350-34747657-48816S109888860530EC146PT338PTA1305

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