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    8-Pack FD506 Ignition Coils & 4503 Spark Plugs Kit Compatible with Thunderbird 2002-2005, Compatible with Lincoln LS 2000-2006, 3.9L V8 - Replaces FD-506 DG515 DG509 DG529 C1234 & more

    • Multivehicle CompatibilityCompatible with popular vehicles: Compatible with Thunderbird 2002-2005 3.9L V8; Compatible with Lincoln LS 2000-2006 3.9L V8. Check product images/descriptions or contact us for fitment confirmation.
    • Replaces PartMatches OE durability with cross-referenced part numbers: FD506 FD506T FD-506 DG515 DG509 DG529 C1234 1W4Z12029BA 2W4Z12029B 2W4Z12029BA 2W4Z12029BC 2W4Z12029BD AJ81373 AJ82545 AJ86468 LF1618100B XR827823 XW4U12A366BB XW4X12029BA XW4Z12029BA etc. Precision-engineered with silicon steel cores, German meled copper wiring, Japanese epoxy resin, and reinforced rubber sleeves for heat/voltage resistance. Built to prevent cracking, shorts, and premature failure.
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    High-Performance Spark Plugs Direct replacement for OE Numbers 4503. Reduces engine wear and improves fuel efficiency. Iridium-tipped electrodes and CNC-machined metal shells ensure precise spark delivery, faster starts, and smoother acceleration. Isostatic ceramic insulators prevent voltage leaks for consistent combustion.
    Strict Quality Test Tested to eliminate misfires, rough idling, stalling, and check engine lights. Each coil/spark plug undergoes voltage stability checks across RPM ranges for reliable ignition under extreme conditions. Fixes hesitation, backfiring, and power loss while optimizing engine performance.
    What You GetYou can get a package including ignition coil *8, spark plug *8, manual *1. Our coil packs and spark plugs meet or exceed OE specifications for form, fit and function and are perfect for automotive replacement ignition coils and spark plugs set. ensures you with an 24-month pleasant experience and top customer service. Please feel free to let us know if have any questions about this spark plugs and coil packs kit.

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