Standard Ignition S-856 Back Up Light Socket

Brand Standard Ignition S-856
Connector Gender Female
Terminal Gender Male
Terminal Type Wire Lead
Fits Ford and Mercury · 6 vehicles

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

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

Wire-lead design. Makes electrical repairs straightforward and secure.

Cross-references Champion Spark Plug 821, Premium Guard PT256 and 1P1453 for the same application. See all 7.

$33.03Free shipping
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Back Up Light Socket for Ford and Mercury

Standard Ignition S-856 is a back up light socket built for electrical repair work where a worn or failed socket causes intermittent rear lighting operation. It uses a female connector with male wire-lead terminals and a 2-wire layout to support a secure electrical connection in the vehicle harness.

  • Back up light socket for electrical socket replacement
  • Female connector gender with 2 connector terminals
  • Male terminal gender with wire-lead terminal type
  • 2-wire construction for direct harness connection
  • Built with high-grade materials for conductivity and connection integrity
  • Standard Ignition S-856 replacement part for rear lamp service

Product Details

Standard Ignition S-856 is engineered for technicians replacing a failed back up light socket in rear lighting circuits. The socket is part of Standard Ignition’s pigtails and sockets line, which focuses on electrical repair components made to restore dependable contact where original equipment has deteriorated. This part cross-references Champion Spark Plug 821 for the same application. It also cross-references Premium Guard PT256 for the same application. Fits 1987 Ford LTD Crown Victoria, N/A. Fits 1987 Ford Taurus, N/A. Fits 1987 Ford Thunderbird, N/A. Fits 1987 Mercury Sable, N/A. Fits 1987 Mercury Topaz, N/A. Fits 1987 Mercury Tracer, N/A.

Common Repair Uses

  • Restores a failed back up light socket connection
  • Addresses intermittent reverse lamp operation
  • Helps correct corrosion-related socket contact loss
  • Replaces damaged wire-lead socket terminals
  • Supports repair of rear lighting harness connection issues

Installation Notes

Verify connector style, terminal gender, and wire-lead configuration before installation. Match the socket to the vehicle’s rear lamp circuit and inspect the harness for heat damage, corrosion, or loose terminals before connecting the replacement part. Confirm proper reverse lamp function after installation.

Quality Assurance

Standard Ignition designs its pigtails and sockets using high-grade materials and long-term electrical engineering experience to address common failure points in original equipment sockets.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1987FordLTD Crown VictoriaN/A—
1987FordTaurusN/A—
1987FordThunderbirdN/A—
1987MercurySableN/A—
1987MercuryTopazN/A—
1987MercuryTracerN/A—
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Champion Spark Plug — 821Premium Guard — PT2561P145357-523488863474LS6266PTC1939