Ignition Coil Pack FD508 for 2004-2008 Ford V8 - Reliable Replacement

In this review the Ignition Coil Pack FD508 is evaluated as a direct replacement for a range of Ford, Lincoln and Mercury V8 engines from mid 2000s models. The bottom line: this coil pack is for owners who need a straightforward, cost effective replacement that restores smooth idle and reliable spark. It is notable for its compatibility across multiple 5.4L, 4.6L and 6.8L V engines and for using high-conductivity copper windings and heat-resistant materials, which combine to deliver dependable ignition performance without an elaborate installation process.

Key Features

• Wide vehicle fitment: Covers many 2004-2008 Ford F150, Expedition, Mustang and Super Duty models so owners can replace coils on several V8 engines without hunting multiple SKUs.
• Durable construction: The exterior uses epoxy resin and high-strength engineering plastic to resist engine bay heat and reduce the chance of housing damage over time.
• Copper windings: High-conductivity copper coil material promotes faster ignition response and consistent spark delivery under load.
• OEM cross references: Replaces common part numbers such as FD508, DG511 and C1541 so it integrates with existing wiring and mounts as expected.
• 1-year warranty: Backed by a one-year warranty after testing, providing basic protection against early failures.

Who It's For

This coil pack is best for DIY mechanics and professional technicians replacing failed coils on 2004-2008 Ford F150 5.4L, Expedition 5.4L, Lincoln Navigator 5.4L, 4.6L Explorer and Mercury Mountaineer, and 6.8L Super Duty trucks. It is a practical choice when the goal is to restore smooth idling and consistent engine speed without spending on dealer-priced parts.

Those who should look elsewhere include owners of vehicles outside the listed years and engine sizes, and anyone needing extended warranty coverage or brand-specific OEM packaging for fleet service. Fitment should be confirmed against part numbers before ordering.

Pros & Cons

Pros

• Reliable fit across many 2004-2008 Ford, Lincoln and Mercury V8 applications.
• Quality materials including epoxy resin housing and copper windings for heat resistance and fast ignition.
• Positive user feedback on ease of installation and improved engine idle and operation.

Cons

• Warranty is limited to one year, so long-term longevity beyond that term remains a customer risk.
• Not an OEM-branded part, so some buyers preferring dealership components may opt for factory coils.

Specifications

Our Verdict

The FD508 ignition coil pack is a sensible, value-minded replacement for a wide range of 2004-2008 Ford, Lincoln and Mercury V8 models. It offers sturdy materials, compatible part cross references and straightforward installation, making it a good buy for most owners who need to restore reliable spark and smoother idle without paying dealer prices.

Frequently Asked Questions

Will this coil pack fit my 2006 Ford F150 5.4L?
Yes, it is listed as compatible with 2004-2008 Ford F150 5.4L V8 engines, but verify against your existing part number.

What is the warranty period?
The product includes a 1-year warranty that covers defects discovered during normal use.

Does it use OEM materials?
The coils use epoxy resin and high-strength engineering plastic for the housing and high-conductivity copper windings to match expected ignition performance.