HomeElectrical, Lighting and Body > Electrical SocketsStandard Ignition S-521 Parking Light Bulb Socket - Front
Part #: S-521

Standard Ignition S-521 Parking Light Bulb Socket - Front

Front
⚙️ 9 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: Mercury and Ford, Cougar, Marquis, Granada, Pinto, and Mustang II
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Reliable Parking Light Bulb Socket for Ford and Mercury Vehicles

The Standard Ignition S-521 parking light bulb socket is designed to provide a secure and durable electrical connection for parking lights in select Ford and Mercury models. Engineered to meet OEM specifications, this socket ensures consistent performance and easy installation for your vehicle's lighting system.

  • Connector Gender: Female for secure plug-in connection
  • Single connector quantity for straightforward wiring
  • Includes a pigtail assembly for simplified installation
  • Three male terminals with wire lead type for reliable electrical contact
  • Three wires included to match vehicle wiring harness requirements

Product Details and Specifications

The S-521 parking light bulb socket by Standard Ignition features a female connector designed to mate precisely with the corresponding male plug in the vehicle's wiring harness. This part includes a pigtail assembly, which simplifies replacement by providing pre-attached wiring leads. The socket has three male terminals with wire leads, supporting three wires to maintain proper electrical flow and signal integrity. This configuration is essential for maintaining the functionality of parking lights in vehicles such as the Ford Cougar, Mercury Marquis, and Ford Pinto.

Compatible Vehicles and Applications

This parking light bulb socket is compatible with specific Ford and Mercury models, including the Ford Cougar, Mercury Marquis, and Ford Pinto. It is intended for use in the electrical lighting system, specifically for parking light bulb connections. The part number S-521 ensures you are selecting the correct socket for these applications.

  • Restores proper electrical connection for parking lights
  • Replaces damaged or corroded bulb sockets
  • Eliminates flickering or intermittent parking light issues
  • Prevents electrical shorts caused by faulty terminals
  • Supports safe and reliable vehicle lighting operation

Installation Notes and Tips

Installation of the Standard Ignition S-521 parking light bulb socket is straightforward due to the included pigtail assembly. Before installation, disconnect the vehicle battery to prevent electrical shorts. Remove the old socket carefully to avoid damaging the wiring harness. Connect the female connector to the vehicle’s wiring harness and secure the wire leads as needed. Verify the parking lights function correctly before completing the installation.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The S-521 parking light bulb socket undergoes quality control inspections to maintain consistent electrical connectivity. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship to support long-term use.

BrandStandard Ignition
Part NumberS-521
Connector GenderFemale
ContentsPigtail Assembly
Terminal GenderMale
Terminal TypeWire Lead

This part fits 9 vehicles. Search below:

YearMakeModelPositionNotes
1980MercuryCougarN/A
1979MercuryMarquisN/ALower Light
1979MercuryMarquisN/APlastic Base; 3 Wires
1978MercuryMarquisN/APlastic Base; 3 Wires
1977MercuryMarquisN/APlastic Base; 3 Wires
1976MercuryMarquisN/APlastic Base; 3 Wires
1975FordPintoN/A
1975MercuryMarquisN/APlastic Base; 3 Wires
1974FordPintoN/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:

2445F350-1973595472C57-48236S10407850108471688860444D4ZB13234AALS6485PT135PTC1915

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