ENA Ignition Coil Pack Set for GM V8 4.8L/5.3L/6.0L — Set of 8 Black, Direct-Fit Plug-and-Play

ENA Square D581 ignition coil pack set of eight provides a direct-fit, plug-and-play replacement for many GM V8 engines, restoring consistent spark delivery for 4.8L, 5.3L and 6.0L applications.

If your Chevy, GMC, Cadillac or Hummer is showing rough idle, reduced fuel efficiency or a check engine light tied to misfires, worn coil packs are often the cause. This ENA coil pack kit (black finish) is designed to match OE electrical and mounting points so you can swap the eight coils quickly without wiring or brackets modifications. The parts cross to common references like UF271 and includes a 12-month warranty for added confidence.

Will these coils fit my vehicle?

ENA has designed this Square D581 pack to replace factory coils on a wide range of GM V8s from late 1990s through mid-2000s. Fitment covers models including Silverado, Sierra, Avalanche, Tahoe, Yukon, Escalade, Hummer H2, Express vans, Kodiak/Topkick trucks and others listed by engine displacement.

• Compatible engines: 4.8L, 5.3L, 6.0L, 6.6L and select 8.1L V8s.
• Common models: Chevy Silverado/Avalanche, GMC Sierra/Savana, Cadillac Escalade, Hummer H2.
• Cross-references: UF271, D581 and OE numbers like 12558693 and 12570553.

How easy is installation and what do I need?

These are bolt-on coil packs that match factory mounting points and electrical connectors, so installation is straightforward for anyone with basic tools. You’ll remove the old coils, seat the new ENA units, secure the bolts and reconnect the harness—no cutting, splicing or additional modules required.

• Type: bolt-on, plug-and-play design for direct replacement.
• Electrical: 12V operation with factory-style connector fitment.
• Tools: common hand tools (socket set, torque wrench recommended).

What performance and durability features should I expect?

ENA coil packs are built to deliver consistent spark energy under everyday driving conditions, helping reduce misfires and restore throttle response. The housings are molded to resist heat and vibration typical of under-hood environments, and the kit includes eight coils so you replace the entire bank at once for uniform performance.

• Terminal quantity: 4 per coil for reliable electrical contact.
• Durability: heat- and vibration-resistant housing in a black finish.
• Warranty: 12-month coverage included with the set of 8.

Are these coils equivalent to the original equipment?

These ENA coils are engineered to match key OE specifications—electrical connector shape, mounting footprint and 12V operating characteristics—so they function as expected in systems designed for the original packs. They cross to common OE numbers to help confirm compatibility prior to purchase.

• OE cross-references included to verify fitment.
• Designed to meet OEM-style spark output and connector fit.
• Sold as a full set of eight for consistent replacement across all cylinders.

Who is this for: This eight-piece ENA Square D581 ignition coil pack kit is aimed at owners, DIY mechanics and repair shops working on GM V8 trucks, SUVs and vans from roughly 1999–2007 who need a full-bank coil replacement. It’s ideal when multiple misfires or aged coils are present, when you want a uniform upgrade across all cylinders, or when the vehicle’s service history is unknown and a complete, plug-and-play solution is preferred.