CarBole ignition coil and spark plug kit for Ford 5.4L 1998–2008 — 8 coils + 8 SP-497 plugs, OEM fit for smoother starts

CarBole's complete ignition coil and spark plug kit replaces worn coils and SP-497 plugs to restore reliable spark delivery and smoother running for compatible late‑90s to mid‑2000s Ford V8 vehicles.

This kit bundles eight curved DG508 coil packs with eight SP-497 spark plugs, engineered to meet OEM fit and performance standards for a range of Ford and Lincoln models from 1998–2008. It’s designed as a synchronized replacement: swapping coils and plugs together reduces the risk of common ignition issues — misfires, rough idle, difficulty starting, and lost power — by ensuring all ignition components are fresh and matched. The set covers many part-number equivalents so you can confidently replace failing coils without searching through multiple SKUs.

Which Ford and Lincoln models are covered by this CarBole ignition kit?

This kit fits a broad list of Ford and Lincoln vehicles that use the 5.4L V8 and related ignition systems from the specified years. It is targeted at owners of vans, trucks and SUVs who need multi‑cylinder coverage in one purchase.

• 1998–2008 Ford E-150, E-250, E-350, and 1999–2008 E-450
• 1998 Ford Econoline Super Duty, 2000–2005 Ford Excursion
• 1998–2004 Ford Expedition; 1998–2003 Ford F-150 5.4L and 2004 F-150 Heritage 5.4L
• 1998–1999 Ford F-250; 1999–2004 F-250/F-350/F-450/F-550 Super Duty; 1998–1999 Lincoln Navigator

How do these coil packs and spark plugs match OEM requirements?

CarBole’s coils and SP-497 plugs are produced to be compatible with original equipment form, fit and function. They list numerous cross-reference part numbers so installers can confirm compatibility with factory replacements.

• Coil pack cross-references include DG508, DG457, DG472, DG491, F523, and many OEM codes (e.g., 3W7Z12029AA).
• Spark plug cross-references include SP-497, AGSF22WM, AWSF22E and other OEM plug numbers.
• Manufactured to meet OEM standards for electrical connection, heat tolerance, and sealing.

What performance and reliability improvements can I expect after replacing both coils and plugs together?

Replacing coils and spark plugs as a matched set reduces the chance of a newer coil being stressed by an old, fouled plug and vice versa. Owners commonly notice more consistent starts, fewer misfires, and steadier idle once all cylinders have fresh ignition components.

• Lowered misfire rates and reduced engine vibration under load.
• Smoother power delivery and improved throttle response during acceleration.
• Reduced risk of spark plug fouling that can lead to rough running and decreased fuel efficiency.

What exactly comes in the package and what should I check before installation?

The package contains eight curved DG508 coil packs and eight SP-497 spark plugs — everything needed for a full eight‑cylinder ignition refresh. Before installation, inspect connector pins, coil boots, and ensure spark plug gap and thread engagement are correct for your engine.

• Package includes: 8 x DG508 curved coil packs + 8 x SP-497 spark plugs.
• Verify part cross-references against your vehicle's VIN or service manual.
• Check spark plug gap and torque specifications per Ford service guidelines.

Who is this for: This CarBole kit is aimed at DIY mechanics, fleet maintainers, and professional technicians who need a reliable, OEM‑compatible ignition refresh for Ford and Lincoln 5.4L installations from the late 1990s through mid‑2000s. It’s best suited for owners servicing full ignition banks at once—especially vehicles experiencing intermittent misfires, rough idle, poor starting, or when replacing a failed coil to avoid repeat failures caused by mismatched old plugs.