Standard Ignition Back Up Light Switch LS-317
Standard Ignition Back Up Light Switch LS-317 - view 2
Standard Ignition Back Up Light Switch LS-317 - view 3
Standard Ignition Back Up Light Switch LS-317
Standard Ignition Back Up Light Switch LS-317 - view 2
Standard Ignition Back Up Light Switch LS-317 - view 3

Standard Ignition Back Up Light Switch P/N:LS-317

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$145.99
MPN: LS-317
Item Package Quantity: 1
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Standard Ignition Back Up Light Switch P/N:LS-317
Standard Ignition Back Up Light Switch P/N:LS-317
$145.99

Bring your reverse lights back to life with the Standard Ignition Back Up Light Switch (LS-317). This switch senses when the transmission is shifted into reverse and completes the circuit that powers the back-up lamps, so the lights come on when you select reverse. It drops in as a direct-fit replacement for the 2000-2003 Ford F-650 and 2000-2003 Ford F-750 — see the Buyer's Guide tab for engine-level details.

  • Copper alloy conductors: deliver strong electrical conductivity with low resistive losses.
  • 100% tested: every switch is verified for both mechanical and electrical switching performance.
  • Robust design, high-grade materials: built to meet the demands of today's service professionals.
  • OE ignition expertise: made by a global manufacturer of original-equipment ignition products with quality control from componentry to finished part.

Signs this switch may need replacing include back-up lights that stay dark in reverse or that flicker. If a failed back-up light switch is the cause, this unit replaces it and restores switching to the reverse-lamp circuit; diagnose the circuit before ordering, as other faults can cause the same symptom.

Interchange: 19106721 · S26362 · F4061 · NS5871 · SW5519 · YC3Z15520BA

This part cross-references / interchanges with the following part numbers:

19106721, S26362, F4061, NS5871, SW5519, YC3Z15520BA

Frequently Asked Questions

What does the LS-317 back-up light switch do?

It senses when the transmission is shifted into reverse and completes the electrical circuit that powers the back-up (reverse) lights.

Which vehicles does this switch fit?

It is a direct-fit replacement for the 2000-2003 Ford F-650 and 2000-2003 Ford F-750. Check the Buyer's Guide tab for engine-level fitment.

How do I know if my back-up light switch has failed?

Common signs are reverse lights that don't illuminate in reverse or that flicker. Diagnose the circuit first, since wiring or bulbs can cause the same symptom.

What numbers does this switch interchange with?

It cross-references 19106721, S26362, F4061, NS5871, SW5519, and YC3Z15520BA.

Is this switch tested before shipping?

Yes. Standard Ignition states every switch is 100% tested to verify both mechanical and electrical switching performance.

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