Standard Ignition S-531 Parking Light Bulb Socket - Front or Rear

Brand Standard Ignition S-531
Position Rear
Connector Gender Female
Contents Includes Butt Splices
Fits Mercury, Lincoln, Ford, and Merkur · 137 vehicles

OE-style replacement. Designed to fix common failure issues in electrical sockets.

High-grade materials. Built for peak conductivity and reliable connections.

Includes butt splices. Ready for a straightforward electrical repair.

Cross-references MOOG Driveline Products 364, 57-4853 and 350-229 for the same application. See all 9.

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Parking Light Bulb Socket for Ford and Mercury

The Standard Ignition S-531 parking light bulb socket is a female electrical socket built for repair work on a wide range of Ford, Lincoln, and Mercury vehicles. It uses high-grade materials to support strong conductivity and reliable electrical connection at the bulb interface.

  • Female connector design for parking light bulb socket applications
  • 3-terminal, 3-wire configuration
  • Includes butt splices for wire repair
  • Built for electrical socket replacement where original connectors fail
  • Fits a broad range of Ford, Lincoln, and Mercury models from 1977-1995

Application Details

Standard Ignition S-531 is a direct-fit parking light bulb socket for service on classic Ford and Mercury lighting circuits, including Ford Mustang, Ford Thunderbird, Mercury Cougar, Mercury Capri, and Lincoln Mark VII applications. It is also listed for select Ford Taurus, Mercury Sable, Ford Escort, Mercury Lynx, Ford Fairmont, Ford LTD, Mercury Bobcat, and Mercury Topaz vehicles, with notes for specific bulb, wire, and position requirements where applicable. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

  • Fits 1991-1995 Mercury Cougar, N/A
  • Fits 1981-1986 Mercury Cougar, N/A
  • Fits 1977-1978 Mercury Cougar, N/A
  • Fits 1984-1992 Lincoln Mark VII, N/A
  • Fits 1989-1990 Ford Taurus, N/A, w/ 1157 Bulb
  • Fits 1987-1990 Lincoln Mark VII, N/A, w/ 1157 Bulb
  • Fits 1987-1990 Mercury Cougar, N/A, w/ 1157 Bulb
  • Fits 1984-1990 Mercury Topaz, N/A
  • Fits 1989 Mercury Sable, N/A, w/ 1157 Bulb
  • Fits 1989 Mercury Sable, N/A, 3 Wires
  • Fits 1986-1987 Mercury Sable, N/A, 3 Wires
  • Fits 1986-1988 Ford Taurus, N/A, 45 Amp Alternator
  • Fits 1986-1988 Mercury Sable, N/A
  • Fits 1979-1986 Ford Mustang, N/A
  • Fits 1986 Ford Taurus, N/A, Rear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
  • Fits 1983-1986 Ford Thunderbird, N/A
  • Fits 1979 Ford Thunderbird, N/A
  • Fits 1979-1986 Mercury Capri, N/A
  • Fits 1983-1986 Mercury Marquis, N/A
  • Fits 1986 Mercury Sable, N/A, w/ Straight 3 Wire Socket; Rear
  • Fits 1984-1986 Mercury Topaz, Rear
  • Fits 1985 Ford Escort, N/A, To 3/85
  • Fits 1985 Mercury Lynx, N/A, To 3/85
  • Fits 1981-1984 Ford Escort, N/A
  • Fits 1981-1984 Mercury Lynx, N/A
  • Fits 1982-1983 Ford Fairmont, N/A, Dual Headlight
  • Fits 1982-1983 Ford Fairmont, Front, Dual Headlight
  • Fits 1982-1983 Lincoln Continental, N/A
  • Fits 1982-1983 Mercury LN7, N/A
  • Fits 1981-1982 Ford Fairmont, Front
  • Fits 1981-1982 Ford Fairmont, N/A
  • Fits 1978 Ford Fairmont, N/A
  • Fits 1981-1982 Ford LTD, N/A
  • Fits 1981-1982 Mercury Marquis, Rear
  • Fits 1982 Mercury Zephyr, Front
  • Fits 1981 Mercury Zephyr, N/A, Dual Headlight
  • Fits 1979-1980 Ford Fairmont, N/A, w/ Single Headlight
  • Fits 1980 Ford Fairmont, Rear
  • Fits 1980 Ford Fiesta, N/A, w/ Single Headlight
  • Fits 1979-1980 Ford LTD, N/A, w/ Single Headlight
  • Fits 1979-1980 Ford Pinto, N/A
  • Fits 1979-1980 Mercury Bobcat, N/A
  • Fits 1980 Mercury Bobcat, N/A, 3 Wires
  • Fits 1978-1980 Mercury Monarch, N/A
  • Fits 1977-1979 Lincoln Versailles, N/A
  • Fits 1979 Mercury Bobcat, Front, w/ 7" Harness; 3 Wires

Common Repair Uses

  • Broken or heat-damaged parking light socket
  • Corroded terminals causing intermittent lighting
  • Loose bulb connection at the front or rear lamp assembly
  • Worn wiring pigtail on older Ford and Mercury lighting systems
  • Failed connector on select 3-wire electrical circuits

Installation Notes

Match the vehicle year, make, model, position, and notes before installation. Confirm the bulb type and wire configuration, especially on applications listed with 1157 bulb, 3-wire, dual headlight, single headlight, rear, or specific harness notes. Use the included butt splices for a secure wire repair and verify terminal alignment before final assembly.

Quality Assurance

Standard Ignition builds this socket with materials selected for conductivity and dependable connection quality. The S-531 is part of a broad electrical socket and pigtail lineup developed to address common failure points in original equipment lighting and connector systems.

This part fits 137 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody Type# DoorsTransmissionLitersCylindersPositionNotes
1995MercuryCougar——————N/A—
1994MercuryCougar——————N/A—
1993MercuryCougar——————N/A—
1992LincolnMark VII——————N/A—
1992MercuryCougar——————N/A—
1991LincolnMark VII——————N/A—
1991MercuryCougar——————N/A—
1990FordTaurus——————N/Aw/ 1157 Bulb
1990LincolnMark VII——————N/Aw/ 1157 Bulb
1990LincolnMark VII——————N/A—
1990MercuryCougar——————N/Aw/ 1157 Bulb
1990MercuryTopaz——2 Door———N/A—
1989FordTaurus——————N/Aw/ 1157 Bulb
1989LincolnMark VII——————N/Aw/ 1157 Bulb
1989LincolnMark VII——————N/A—
1989MercuryCougar——————N/Aw/ 1157 Bulb
1989MercurySable——————N/Aw/ 1157 Bulb
1989MercurySable—Wagon————N/A3 Wires
1989MercuryTopaz——2 Door———N/A—
1988FordTaurus——————N/A45 Amp Alternator
1988LincolnMark VII——————N/Aw/ 1157 Bulb
1988LincolnMark VII——————N/A—
1988MercuryCougar——————N/Aw/ 1157 Bulb
1988MercurySable——————N/A—
1988MercuryTopaz——2 Door———N/A—
1987FordTaurus——————N/A45 Amp Alternator
1987LincolnMark VII——————N/Aw/ 1157 Bulb
1987LincolnMark VII——————N/A—
1987MercuryCougar——————N/Aw/ 1157 Bulb
1987MercurySable——————N/A—
1987MercurySable—Wagon————N/A3 Wires
1987MercuryTopaz——2 Door———N/A—
1986FordMustang——————N/A—
1986FordTaurus—Wagon4 Door———N/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
1986FordTaurus——————N/A45 Amp Alternator
1986FordThunderbird——————N/A—
1986LincolnMark VII——————N/A—
1986MercuryCapri——————N/A—
1986MercuryCougar——————N/A—
1986MercuryMarquis——————N/A—
1986MercurySable——————N/Aw/ Straight 3 Wire Socket; Rear
1986MercurySable——————N/A—
1986MercurySable—Wagon————N/A3 Wires
1986MercuryTopaz——————N/A—
1986MercuryTopaz——————Rear—
1985FordEscort——————N/ATo 3/85
1985FordMustang——————N/A—
1985FordThunderbird——————N/A—
1985LincolnMark VII——————N/A—
1985MercuryCapri——————N/A—
1985MercuryCougar——————N/A—
1985MercuryLynx——————N/ATo 3/85
1985MercuryMarquis——————N/A—
1985MercuryTopaz——————N/A—
1985MercuryTopaz——————Rear—
1984FordEscort——————N/A—
1984FordMustang——————N/A—
1984FordThunderbird——————N/A—
1984LincolnMark VII——————N/A—
1984MercuryCapri——————N/A—
1984MercuryCougar——————N/A—
1984MercuryLynx——————N/A—
1984MercuryMarquis——————N/A—
1984MercuryTopaz——————N/A—
1984MercuryTopaz——————Rear—
1983FordEscort——————N/A—
1983FordFairmont——————N/ADual Headlight
1983FordFairmont——————FrontDual Headlight
1983FordMustang——————N/A—
1983FordThunderbird——————N/A—
1983LincolnContinental——————N/A—
1983MercuryCapri——————N/A—
1983MercuryCougar——————N/A—
1983MercuryLN7——————N/A—
1983MercuryLynx——————N/A—
1983MercuryMarquis——————N/A—
1982FordEscort——————N/A—
1982FordFairmont——————Front—
1982FordFairmont—Sedan————N/A—
1982FordFairmont—Wagon————N/A—
1982FordFairmont——————N/ADual Headlight
1982FordFairmont——————FrontDual Headlight
1982FordLTD——————N/A—
1982FordMustang——————N/A—
1982LincolnContinental——————N/A—
1982MercuryCapri——————N/A—
1982MercuryCougarBase—————N/A—
1982MercuryCougarLS—————N/A—
1982MercuryCougarGS—————N/A—
1982MercuryLN7——————N/A—
1982MercuryLynx——————N/A—
1982MercuryMarquis——————Rear—
1982MercuryZephyr——————Front—
1981FordEscort——————N/A—
1981FordFairmont——————Front—
1981FordFairmont—Sedan————N/A—
1981FordFairmont—Wagon————N/A—
1981FordFairmont——————N/A—
1981FordLTD——————N/A—
1981FordLTD—Sedan————N/A—
1981FordMustang——————N/A—
1981MercuryCapri——————N/A—
1981MercuryCougarBase—————N/A—
1981MercuryLynx——————N/A—
1981MercuryMarquis——————Rear—
1981MercuryZephyr———Automatic——N/ADual Headlight
1980FordFairmont——————N/Aw/ Single Headlight
1980FordFairmont——————Rear—
1980FordFiesta——————N/Aw/ Single Headlight
1980FordLTD——————N/Aw/ Single Headlight
1980FordMustang——————N/A—
1980FordPinto——————N/A—
1980FordPinto—Sedan————N/A—
1980FordPinto—Wagon————N/A—
1980MercuryBobcat——————N/A—
1980MercuryBobcat——————N/A3 Wires
1980MercuryCapri——————N/A—
1980MercuryMonarch——————N/A—
1979FordFairmont——————N/Aw/ Single Headlight
1979FordLTD————5.8LV8N/Aw/ Single Headlight
1979FordLTD————5.0LV8N/Aw/ Single Headlight
1979FordMustang——————N/A—
1979FordPinto——————N/A—
1979FordPinto—Sedan————N/A—
1979FordPinto—Wagon————N/A—
1979FordThunderbird——————N/A—
1979LincolnVersailles——————N/A—
1979MercuryBobcat——————N/A—
1979MercuryBobcat——————Frontw/ 7" Harness; 3 Wires
1979MercuryCapri——————N/A—
1979MercuryMonarch——————N/A—
1978FordFairmont——————N/A—
1978LincolnVersailles——————N/A—
1978MercuryCougar——————N/A—
1978MercuryMonarch——————N/A—
1977LincolnVersailles——————N/A—
1977MercuryCougar——————N/A—
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
MOOG Driveline Products — 36457-4853350-229643-0622447F88860449E1AB14A553AALS6523PT162