Nakkaa Ignition Tune-Up Kit for 1999–2007 GM Trucks – 8 Coils, 8 Double-Iridium Plugs & Wire Set

The Nakkaa 8 Pack UF271 kit delivers eight direct-replacement ignition coils, eight double-iridium spark plugs, and a full set of high-performance ignition wires designed for 1999–2007 GM trucks and SUVs.

This complete ignition tune-up kit combines matched coils, long-life double-iridium spark plugs, and a set of durable ignition wires to restore consistent spark delivery and simplify installation. Each component is made to match OEM fitment numbers listed for many Chevrolet, GMC, and related vehicle platforms, so you can replace worn parts in one service session without sourcing individual items.

Which vehicles and part numbers are covered by this Nakkaa kit?

The kit lists multiple OEM cross-references and supports many GM full-size platforms from 1999 through 2007. Use your vehicle’s VIN or compare the part numbers below against the originals to confirm compatibility before ordering.

• Ignition coil cross-replaces: 12556893, 12558693, 12570553, 3859078, 392889925, D581, UF-271, 38590782
• Spark plug cross-replaces: 41-962, 19299585
• Wire set cross-replaces: M8-48322R, 9059, 9748HH, 9748UU, 9748RR, 88862385
• Compatible models include Savana, Sierra, Yukon XL, Avalanche, Express, Silverado, Suburban, Tahoe, Trailblazer, H2, SSR and Mercruiser applications listed for 1999–2007

How does the double-iridium spark plug improve performance and longevity?

Double-iridium electrodes use a harder, more wear-resistant material at both the center and ground electrodes, which helps maintain a stable spark gap and resist erosion over time. That consistency contributes to reliable ignition events and potentially steadier idle and throttle response compared with worn or conventional plugs.

• Fine wire center and ground electrodes for consistent spark
• Higher melting point reduces electrode degradation
• Designed to hold gap longer between service intervals

What should I expect from the Nakkaa ignition coils and wires during installation?

The ignition coils are molded to match OE mounting points and electrical connectors for a straightforward swap; the wire set includes properly terminated ends sized for the same applications. Expect plug-and-play fitment on compatible engines, which minimizes modification and reduces installation time.

• Coils match OE connector type and bolt pattern
• Wires come with sealed boots to resist moisture and arcing
• Color-coded or indexed wires for easier routing and correct cylinder placement

Will this kit help if I have a misfire, rough idle, or weak acceleration?

Replacing all ignition components at once removes multiple potential failure points—aged coils, eroded plugs, and brittle wires—that commonly cause misfires and inconsistent combustion. While helpful for resolving ignition-related symptoms, diagnose underlying issues first if problems persist after installation.

• Replaces coils, plugs, and wires in a single maintenance job
• Reduces chance of repeat failures from mixed-age parts
• Recommended alongside fuel and diagnostic checks for thorough troubleshooting

Who this is for: The Nakkaa 8 Pack UF271 ignition kit is aimed at DIY mechanics, independent service shops, and fleet technicians who need a complete, application-matched ignition replacement for late‑1990s to mid‑2000s GM full-size trucks, SUVs, and compatible marine or specialty models. It’s suited for anyone wanting a single-purchase solution to restore ignition reliability and simplify maintenance scheduling.