8 Pack DG508 Ignition Coils with Iridium Spark Plugs SP479 - Reliable

In this review the 8 Pack DG508 Ignition Coils with Iridium Spark Plugs SP479 is assessed as a budget-conscious replacement kit for owners of compatible Ford and related vehicles. The single biggest reason to consider this kit is its claimed 18.9% higher energy output compared with conventional OE parts, which reviewers and owners say improves performance under load; this review looks at fit, durability and ease of installation to decide if it is a practical alternative to more expensive OEM coil packs.

Key Features

• Compatibility: Designed to replace a range of part numbers such as DG508, SP479 and FD503, making it easier to match the kit to specific Ford models when the fitment is confirmed.
• Higher energy output: Offers 18.9% more energy than conventional OE parts, which can reduce common ignition issues and support smoother engine performance during towing or heavy loads.
• Durable construction: High-grade copper wire, thick silicone boot and stainless steel spring with a ferrite core are intended to extend service life in demanding conditions.
• Perfect fit design: DG508 coils are shaped for specific applications with a curved boot; using the year/make/model selector is essential to avoid ordering the straight boot DG511 by mistake.
• Comprehensive interchange list: The kit lists many cross references and replacement numbers to simplify part selection for common Ford chassis and other platforms.

Who It's For

Owners of Ford F150, F250, F350, E150, E250, Econoline vans, Expedition, Mustang and similar models who need a full set of ignition coils and plugs at a lower cost than dealer parts will find this kit appealing, particularly if their vehicle uses the curved boot DG508 design. Mechanics and DIYers who value easy installation and a drop-in fit will also appreciate the straightforward replacement process.

Shoppers who are unsure about which coil shape their engine uses or who require manufacturer warranty parity should check OEM sources or consult a dealer before buying; the product requires careful fitment confirmation to avoid ordering the wrong DG511 straight boot variant.

Pros & Cons

Pros

• Improved ignition energy that helps under-load performance and reduces misfires according to owners.
• Good value for money compared with pricier OEM coil packs while still offering durable materials.
• Easy to install with many customers reporting a perfect fit when the correct coil type is chosen.

Cons

• Two coil shapes exist (curved DG508 and straight DG511), so ordering the wrong type is a realistic risk without checking fitment carefully.

Specifications

Kit contents	8 ignition coils and iridium spark plugs
Compatible series	Ford F150, F250, F350, E150, E250, Econoline, Expedition, Mustang and related models
Energy increase	18.9% more energy versus conventional OE parts
Materials	High-grade copper wire, thick silicone boot, stainless steel spring, ferrite core
Interchange numbers	DG508, SP479, FD503, SP493 and others listed for cross reference
Coil boot type	Curved boot (DG508) - confirm year/make/model before ordering

Our Verdict

The 8 Pack DG508 ignition coils with Iridium spark plugs is a sensible, cost-effective replacement for owners of compatible Ford and related vehicles who confirm the curved boot fitment. It offers a measurable energy boost, solid construction and easy installation for DIYers, making it a good value alternative to more expensive OEM options when fitment is verified.

Frequently Asked Questions

Will these coils fit my Ford F150?
They will fit if your F150 uses the curved boot DG508 design; use the vehicle selector and interchange numbers to confirm compatibility before purchase.

Do the plugs come pre-installed in the coils?
The kit is sold as ignition coils plus Iridium spark plugs; check the product listing for how components are shipped and whether installation is required.

Are these coils durable for heavy-duty use?
The coils are built with high-grade copper, thick silicone boots and stainless steel springs with ferrite cores, which customers report hold up well under demanding conditions.