ultramindz Ignition Coil & Spark Plug 8-Pack for Ford 5.4L (98-03 F-150, 98-04 Expedition) — DG508 + SP479 Full-Bank Kit

This all-in-one kit supplies the ignition coils and spark plugs many Ford owners need when restoring reliable spark delivery on older F-series trucks, SUVs and vans. The set is built to match factory-style fitment and electrical connections for specified model years, making it a practical direct-replacement option when symptoms point to worn coils or fouled plugs.

Which Ford, Lincoln and other vehicles will this kit fit?

This kit targets vehicles equipped with the 5.4L V8 across specific years and select 4.6L applications. It covers many Ford F-150, F-Series Super Duty, Expedition, Excursion, E-Series vans and the Lincoln Navigator within the listed ranges. Note a key exception for newer F-150s.

• F-150 5.4L V8: 1998–2003 and F-150 Heritage 2004 (NOT for 2004+ F-150s using DG511 coils)
• Expedition 5.4L V8: 1998–2004; Excursion 2000–2005
• F-250/F-350 (5.4L): roughly 1998–2004 range (Super Duty coverage depends on year)
• E-Series (E150/E250/E350/E450) with 5.4L: coverage varies by year as listed in product details
• Lincoln Navigator 5.4L: 1998–2000; VPG MV-1 4.6L: 2011–2012

How do these parts match the original equipment (OEM) specs?

The ignition coils in this kit correspond to OEM reference numbers commonly fitted by Ford for the covered years, and the spark plugs match recommended spark plug references. That alignment helps ensure correct connector orientation, coil resistance characteristics and spark gap compatibility.

• Coil cross-reference: DG508 and related Ford OEM part numbers listed in the product details
• Spark plug reference: SP479 / AGSF-22W-MX for compatible heat range and gap
• Eight coils and eight plugs included for a full-banke replacement
• Designed for plug-and-play replacement where vehicle wiring harness and mounting match OEM

What symptoms indicate a coil or spark plug replacement is needed?

Common signs include rough idle, misfires on one or more cylinders, reduced throttle response, or a persistent check engine light with misfire codes. Replacing both coils and plugs together is often recommended to restore balanced ignition performance across all cylinders.

• Intermittent or constant engine misfire codes (P0300–P0308 ranges)
• Rough idle, hesitation during acceleration or loss of power
• Hard starting or poor fuel economy tied to ignition issues
• Visible wear, cracking or arcing on old coil boots and fouled spark plugs

Are there installation notes or compatibility cautions I should know?

Installation requires basic mechanical skill and appropriate tools; a qualified technician is recommended to avoid damage. Confirm your vehicle year, engine size and whether your F-150 uses DG511 coils (2004+ 5.4L F-150) before purchasing.

• Not compatible with 2004+ F-150 5.4L that use DG511 coil packs
• Check part cross-references printed in the product details to verify fitment
• Professional installation advised to ensure torque specs and electrical connections are correct
• Keep original parts until new components are verified to work in-vehicle

Who is this for: This ultramindz ignition coil and spark plug kit is aimed at owners and mechanics working on Ford 5.4L V8 engines from the late 1990s through mid-2000s who need a full eight-cylinder ignition refresh. It’s also suitable for fleet maintenance shops and DIYers with experience in engine diagnostics who want a complete, OEM-referenced replacement set for compatible F-series trucks, Expeditions, E-Series vans, Excursions, Lincoln Navigators and select 4.6L MV-1 applications.