ultramindz Ignition Coil Pack & Spark Plug Kit for Ford 5.4L V8 (2005-2008) — Set of 8, Direct-Fit Replacement

Complete set of eight ultramindz ignition coil packs and spark plugs engineered to replace faulty coils and plugs on Ford/Lincoln 5.4L V8 engines from model years 2005–2008.

If your 5.4L F‑Series, Expedition, Navigator or Mark LT is showing misfires, rough idle, or reduced throttle response, a matched coil‑and‑plug replacement can restore consistent spark delivery across all cylinders. This package includes eight ignition coils and the corresponding spark plugs sized for the 5.4L Ford Modular V8, designed as direct-fit replacements for common OE references so installation integrates with factory ignition towers and wiring.

Which vehicles and engine years does this kit fit?

This ultramindz kit covers a range of Ford and Lincoln models that used the 5.4L V8 between 2005 and 2008. It fits both light-duty trucks and full‑size SUVs within those model years, replacing the original coil packs and matched spark plugs.

• Ford F‑150 5.4L V8 (2005–2007; fits before 12/2007 production)
• Ford Expedition 5.4L V8 (2005–2008)
• Ford F‑250/F‑350 Super Duty 5.4L V8 (2005–2008)
• Lincoln Navigator 5.4L V8 (2005–2008) and Mark LT 2006–2008

How do I confirm this kit matches my existing coils?

Before purchase, visually compare your current coils and boots to the photos and part numbers. Pay special attention to the coil boot color and OE part references to ensure fitment and connector compatibility.

• Check coil boot color — this kit fits vehicles with black boots; not compatible with brown‑boot coils.
• Match OE part numbers: DG511, UF537, DG‑511, FD508, 3L3Z12029BA and equivalents.
• Compare spark plug references: SP546 / SP‑546 / 3L3E12405KD, 7C3E12405AB.

What should I expect during installation and performance?

The kit is designed for direct replacement of worn coils and plugs so a qualified technician can complete the job using standard tools. Once installed, the vehicle should run with smoother idle and improved ignition consistency when faults were coil/plug related.

• Professional installation recommended to avoid electrical or engine damage.
• Fits into existing ignition towers and connects to factory wiring harnesses.
• Replaces all eight cylinders at once for uniform performance and diagnostics.

Which OE issues does this set address?

This replacement set targets common ignition failure modes associated with age, heat cycling, and coil/plug wear. It helps eliminate intermittent misfires and reduces the need to chase cylinder-specific trouble codes when root cause is degraded ignition components.

• Resolves coil‑related misfires and inconsistent spark delivery.
• Replaces worn spark plugs that can cause poor combustion or rough idle.
• Standardized parts reduce diagnostic complexity by replacing all ignition elements at once.

Who is this for: This ultramindz ignition coil pack and spark plug set is intended for owners and mechanics servicing Ford and Lincoln models with the 5.4L V8 from 2005–2008 who need a full, matched replacement. It’s ideal for fleet maintenance, DIYers with mechanical experience, and professional shops replacing coils and plugs together. Note: Always have a qualified mechanic install ignition components to prevent installation errors and ensure safe, reliable operation.