Set of 6 UF497 Ignition Coil Pack and 5019 Spark Plugs Compatible

In this review the Set of 6 UF497 ignition coil packs and 5019 spark plugs is evaluated as a practical replacement kit for owners of 4.2L L6 GM-based SUVs from 2006 to 2009. The bottom line: this kit is for DIY mechanics and independent shops who need a full-cylinder ignition refresh in one purchase, because it bundles six coils and six plugs sized and specified to match OE fit and function. Installation is straightforward and the parts are built from high-temperature resistant materials so the biggest reason to buy is the convenience of a complete, OE-compatible replacement set that aims to restore reliable ignition performance.

Key Features

• Complete kit: Includes six ignition coils and six spark plugs so all cylinders are serviced at once, avoiding mismatched components.
• Vehicle coverage: Designed for 2006-2009 Chevy Trailblazer, Trailblazer EXT, GMC Envoy and Envoy XL, Saab 9-7x, Buick Rainier and Isuzu Ascender with the 4.2L L6 engine.
• OE compatibility: Replaces OE numbers associated with UF497 coils and 5019 spark plugs so fit and electrical connections match original parts.
• Durable materials: Coils and plugs use high-temperature resistant construction intended to meet or exceed OE standards for long-term reliability.
• Simple installation: Packaged for fast swap-in replacement, useful for technicians and experienced DIYers restoring ignition performance.

Who It's For

This kit is aimed at owners of the listed GM-based SUVs who are experiencing ignition-related symptoms such as rough idle, hard starting, slow acceleration or increased fuel use and want to replace all ignition components at once. It is also suited to independent mechanics and DIYers who prefer to do a full-cylinder service rather than replace single failing parts.

It is less appropriate for owners whose engines are not the 4.2L L6 specified or who need a single coil or plug only; in those cases a single-item purchase or a dealer-sourced OE part may be a better match. Always confirm compatibility with the OE numbers before purchasing.

Pros & Cons

Pros

• Complete six-coil and six-plug package simplifies maintaining all cylinders at once.
• Designed to meet or exceed OE fit and function, so customers report good fit and reliable operation.
• Durable, high-temperature resistant construction helps with longevity under engine conditions.

Cons

• Compatibility is limited to specific 4.2L L6 model years and engines, so buyers must verify OE numbers before ordering.
• Not intended for users who only need a single replacement coil or plug, which makes the six-pack overkill for minor repairs.

Specifications

Our Verdict

The SYKRSS set of six UF497 coils and six 5019 spark plugs is a sensible value for owners of the specified 4.2L L6 GM SUVs who want to restore ignition reliability in one service. It matches OE connections and materials, comes with all items needed for a full replacement, and is especially worthwhile when multiple cylinders show age-related symptoms. Confirm OE numbers first, but for the right vehicle this kit offers dependable parts and clear convenience for DIY or shop installs.

Frequently Asked Questions

Will this kit fit my vehicle?
Check your vehicle engine is the 4.2L L6 and verify OE numbers against the listed coil and plug references before purchasing.

How many items are included?
The package contains six ignition coils, six spark plugs and one installation manual.

What warranty is provided?
The product comes with a 24-month warranty and customer support from the brand.