X4XZ Ignition Coil & Spark Plug Kit for Chevy 2.4L — 4-Pack UF491 + XP5263, Double Iridium Direct-Fit

The X4XZ UF491 ignition coil and XP5263 double iridium spark plug kit replaces four faulty coils and plugs to restore reliable starting, smoother idling, and consistent spark for 2.4L Chevy/GM engines.

Designed as a direct-fit replacement for many GM 2.4L models, this kit bundles four UF491 ignition coils with four XP5263 double iridium spark plugs. Each component is engineered to match or exceed original equipment specifications so installation is straightforward and the result is improved ignition stability, reduced misfires, and predictable performance under normal driving conditions.

Which vehicles and engines is this kit compatible with?

This set is intended for a wide range of Buick and Chevrolet models fitted with 2.0L–2.4L engines. Compatibility covers many model years—check your vehicle’s OEM part numbers or the second product image for a full fitment list before ordering.

• Chevrolet: Equinox 2010–2015, 2016–2017 (2.4L), Captiva Sport 2010–2015 (2.4L), Cobalt, HHR, Impala, Malibu, Orlando as listed.
• Buick: Lacrosse, Regal, Verano, Allure across the years specified.
• Cross-reference OE numbers: UF491, XP5263, and replacement numbers provided in the product details.

How do these ignition coils and double iridium plugs improve engine behavior?

Each coil is built to reliably deliver the high voltage the plugs need, while the double iridium electrodes on the plugs provide a stable, long-lasting spark. Together they reduce the chance of misfires, smooth idle roughness, and help maintain consistent combustion which can improve drivability.

• Iridium plugs rated for extended life—consistent sparking up to long service intervals.
• Coil design includes ferrite noise suppression to limit radio interference.
• Materials and connectors resist heat and thermal cycling for dependable operation.

What should I expect during installation and maintenance?

The kit is packaged with four coils and four plugs and is intended as a direct-replacement set for the specified OE numbers. Basic hand tools and a torque wrench are sufficient for most DIY installs, but follow proper torque specs and gap checks. No printed manual is included, so keep OEM service data or a repair guide handy.

• Plug gap pre-set at factory—verify before installation when possible.
• Coils snap into the stock connectors; ensure wiring clips fully seat.
• Inspect ignition boots and electrical connectors for wear during replacement.

What warranties and support come with this X4XZ kit?

X4XZ provides a one-year product service period plus round-the-clock customer support for installation or quality concerns. If you encounter fitment or functional issues within the warranty window, contact the seller for troubleshooting or replacement options.

• 24-hour customer service availability for questions or returns.
• One-year limited product service for manufacturing defects.
• Keep purchase details and vehicle info ready when requesting support.

Who is this for: This kit is aimed at owners and professional technicians working on GM 2.4L engines who need a complete four-cylinder ignition refresh—ideal when multiple misfires, rough idle, or aging ignition components point to both coils and plugs as root causes. It’s also suited for preventative maintenance when replacing parts in matched sets improves long-term reliability and simplifies future diagnostics.