WJAUTO Iridium Spark Plugs 4-Pack — Pre-Gapped OEM Replacement for GM 2.2L/2.4L Engines, Long-Life

WJAUTO Iridium Spark Plugs 4-Pack are pre-gapped OEM-style ignition plugs engineered to deliver reliable starts, quicker throttle response, and extended service life for compatible Chevrolet, GMC, Buick and other vehicles.

If your engine needs a dependable replacement that mirrors factory fit and performance, this four-pack of iridium spark plugs from WJAUTO is built to be a drop-in solution. Designed for a wide range of GM-based models and select imports, these plugs arrive pre-gapped to OEM specs so you can install them quickly during routine tune-ups or as part of a full plug replacement.

Which vehicles and engines will these WJAUTO plugs fit?

These spark plugs are made to match OEM dimensions and thread specifications used across many General Motors platforms and a few other makes. They’re commonly specified for 2.2L L4 and 2.4L engines and for model years listed in the compatibility details.

• Compatible with Buick LaCrosse, Regal, Allure, Verano and select models.
• Fits Chevrolet Equinox, Malibu, Impala, Captiva Sport, Cobalt, HHR, Orlando and others.
• Also suits GMC Terrain, Pontiac models, Saab 9-5, Saturn series and Fisker Karma in specified years.
• Always verify year, make, model and engine using your vehicle lookup before ordering.

How do iridium electrodes improve ignition and driving feel?

Iridium is a hard, high-melting-point metal used on the center electrode to concentrate spark energy and resist wear. That focused spark can ignite the air–fuel mix more consistently, leading to crisper throttle response and smoother idle when the rest of the ignition system is in good condition.

• Fine iridium center electrode for consistent spark and improved combustion.
• Reduced electrode wear extends service life compared with copper plugs.
• Helps maintain stable ignition timing and throttle responsiveness over time.
• Lower carbon buildup for more reliable long-term performance.

What maintenance interval and longevity can I expect?

These WJAUTO iridium plugs are built to deliver an extended service life. Under normal driving conditions and proper engine maintenance, they are designed to remain effective for many tens of thousands of kilometers, reducing the frequency of replacements.

• Engineered for long life—service intervals up to about 80,000 km typical under normal use.
• Iridium construction resists high temperatures and electrode erosion.
• Fewer replacements compared with standard copper plugs and many platinum designs.
• Check ignition system and gaps during major services to preserve longevity.

Are these plugs ready to install, and how are they packaged?

The plugs ship pre-gapped to OEM specifications so no gap adjustment is necessary before installation, making them convenient for both DIYers and professional shops. Packaging is arranged so you get a complete set for four cylinders in one box, simplifying full-plug jobs.

• Pre-gapped at the factory to match OEM gap settings—plug-and-play convenience.
• Sold as a 4-pack suited for four-cylinder engines; larger multi-packs available for other needs.
• Suitable for routine tune-ups, professional service bays, or DIY replacements.
• Always torque to manufacturer specs and follow anti-seize recommendations if applicable.

Who is this for: Drivers and mechanics who want a reliable OEM-fit iridium spark plug replacement for GM-based 2.2L and 2.4L engines, plus compatible Buick, Chevrolet, GMC, Pontiac, Saab, Saturn and Fisker models listed in the fitment guidance. Ideal for owners seeking longer service life, consistent ignition performance, and a pre-gapped, ready-to-install plug that supports regular maintenance and improved drivability without complex adjustments.