OTO-KAUTOPARTS Ignition Coil Pack & Iridium Spark Plug Kit — Set of 4 UF491/XP5263, Pre‑Gapped Fit for GM 2.0–2.4L

Complete set of four OTO-K ignition coil packs and double iridium spark plugs engineered to restore smooth ignition, improve throttle response, and match factory fit for compatible GM 2.0L–2.4L L4 engines.

When your GM compact or midsize vehicle shows signs of misfires, rough idle, or reduced fuel economy, the ignition system is often the culprit. This OTO-K kit includes four coil packs (UF491 series) and four double iridium spark plugs (XP5263) assembled and pre-gapped for plug-and-play replacement on many Chevy, GMC, Buick, Pontiac, Saturn and Saab 2.0L–2.4L four-cylinder models from about 2006–2017. The parts are built with high-dielectric epoxy, reinforced housings, and long-life iridium electrodes for consistent sparks and reliable starts.

Which vehicles and engines will this ignition kit fit?

This kit is specified for a wide range of GM four-cylinder models. It fits 2.0L, 2.2L and 2.4L L4 engines across Chevy Equinox, Malibu, Captiva, Cobalt, HHR, Orlando, Impala; GMC Terrain; Buick Regal, Verano, LaCrosse; Pontiac G5, G6, Solstice; Saturn Vue, Aura, Sky, Ion; and Saab 9-5 (select years).

• Chevy Equinox 2010–2017 (2.4L) and Malibu 2007–2014 (2.2/2.4L)
• GMC Terrain 2010–2017 (2.4L), Buick Verano/Regal/LaCrosse compatible years
• Selected Pontiac, Saturn and Saab models with 2.0–2.4L L4 engines
• Refer to OEM part numbers UF491 / XP5263 for cross-checking fit

How do these coils and iridium plugs improve driving performance?

Upgrading worn coils and plugs restores ignition stability so the engine runs more smoothly and responds better to throttle inputs. Iridium electrodes maintain a stable spark over a much longer interval than conventional plugs, and robust coil construction resists heat degradation to preserve consistent firing.

• Smoother idle and reduced misfire events
• Quicker cold starts and more consistent acceleration
• Improved combustion efficiency can help fuel economy
• Pre-gapped plugs simplify replacement—no extra adjustments

What build quality and materials are used in the OTO-K kit?

These components combine high-dielectric epoxy, high-strength engineering plastics for coil housings, and copper windings for conductivity. The double iridium spark plugs are designed for extended life and steady spark delivery while the coils include thermal-resistant materials to reduce failure from engine heat.

• Epoxy-filled coils for superior insulation and reliability
• Reinforced plastic housings to resist melting or warping
• Double iridium electrodes for long service intervals
• Manufactured and tested to meet or exceed factory-level specifications

Is installation and compatibility straightforward for DIY mechanics?

The kit is intended as a direct replacement: each spark plug arrives pre-set to the correct factory gap and coils match OEM mounting and electrical connectors. Basic hand tools are typically sufficient, but follow torque specs and safety procedures when working on the ignition system.

• Plug-and-play fit with pre-gapped XP5263 spark plugs
• Coils match UF491 mounting points and electrical terminals
• Simple swap procedure—replace coil and plug one cylinder at a time
• Contact OTO-KAUTOPARTS support if fitment questions arise

Who is this for: This OTO-K ignition coil and iridium spark plug set is aimed at owners and technicians working on GM compact and midsize four-cylinder cars and crossovers who need a reliable, long-life replacement. It suits DIYers seeking an OEM-style, pre-gapped plug and coil pack solution, fleet managers maintaining service intervals, and repair shops that want a parts kit that balances cost with upgraded spark plug longevity and robust coil construction. If your vehicle matches the listed models and engine sizes, this set provides the necessary components to restore ignition performance quickly and confidently.