Part number lookup

FD503 Replacement Parts

Cross-reference and compare 2 replacement listings for OEM / aftermarket part number FD503. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.

2 Matching Products

Set of 8 Ignition Coil Pack Iridium Spark Plug Pack DG508 For Ford Lincoln Mercury F150 F250 F350 E150 E250 Expedition Mustang Lincoln 4.6L 5.4LFordSet of 8 Ignition Coil Pack Iridium Spark Plug Pack DG508 For Ford Lincoln Mercury F150 F250 F350 E150 E250 Expedition Mustang Lincoln 4.6L 5.4L$140.99Set of 8 Straight Boot Ignition Coil Pack DG511 C1541 FD508 Compatible with Ford Lincoln Expedition Explorer F-150 Super Duty Mustang Mountaineer 4.6l 5.4l 6.8lFordSet of 8 Straight Boot Ignition Coil Pack DG511 C1541 FD508 Compatible with Ford Lincoln Expedition Explorer F-150 Super Duty Mustang Mountaineer 4.6l 5.4l 6.8l$115.99

Part Numbers and Cross References

DG508DG-457DG-472DG-491DG540FD5035C1412GN10164FD791306223719722901L2U12029AA1L2U12A366AAC15413L3Z12029BA-3L3E12A366CA3L3Z12029BA5C1584DG-511FD-508UF-537C1659GN10182-5C1584-50082-FD5083L3Z12029BA-3L3U12A366BB

Applications and Fitment Summary

  • Ford · Crown Victoria · V8 4.6L
  • Ford · E-150 · V8 4.6L
  • Ford · E-150 · V8 5.4L
  • Ford · E-150 Club Wagon · V8 4.6L
  • Ford · E-150 Club Wagon · V8 5.4L
  • Ford · E-150 Econoline · V8 4.6L
  • Ford · E-150 Econoline · V8 5.4L
  • Ford · E-150 Econoline Club Wagon · V8 4.6L
  • Ford · E-150 Econoline Club Wagon · V8 5.4L
  • Ford · E-250 · V8 4.6L
  • Ford · E-250 · V8 5.4L
  • Ford · E-250 Econoline · V8 5.4L
  • Ford · E-350 Club Wagon · V8 5.4L
  • Ford · E-350 Club Wagon · V10 6.8L
  • Ford · E-350 Econoline · V8 5.4L
  • Ford · E-350 Econoline · V10 6.8L
  • Ford · E-350 Econoline Club Wagon · V8 5.4L
  • Ford · E-350 Econoline Club Wagon · V10 6.8L
  • Ford · E-350 Super Duty · V8 5.4L
  • Ford · E-350 Super Duty · V8 6.0L
  • Ford · E-350 Super Duty · V10 6.8L
  • Ford · E-450 Econoline Super Duty · V8 5.4L
  • Ford · E-450 Econoline Super Duty · V10 6.8L
  • Ford · E-450 Super Duty · V8 5.4L

Frequently Asked Questions

What parts replace OEM number FD503?

This page lists 2 replacement listings indexed under FD503. Compare cross references, applications, and pricing before ordering.

How do I confirm fitment for FD503?

Match the stamped part number first, then verify machine model, engine code, serial number, mounting points, and photos of your old part before checkout.

Can I request a quote if FD503 is not an exact match?

Yes. Use the fitment inquiry form with your machine plate, engine model, and photos. Support can review alternatives or cross references.

Confirm fitment & quote details

Send machine details and nameplate photos before ordering high-risk or quote-only parts.