Ignition Coil Pack and Iridium Spark Plugs Set for GM 2.4L Engines - 4

In this review of the PHILTOP set of 4 ignition coil packs and iridium spark plugs, the bottom line is straightforward: this kit targets owners of GM vehicles with 2.4L engines who need an OEM-style replacement to restore smooth idle and reliable starting. The reviewer found the package delivers a near-OE fit across a long list of Chevrolet, GMC, Buick and Saturn models and provides a noticeably stronger spark and improved throttle response after installation. It is aimed at do-it-yourself installers and independent shops looking for a straightforward swap to replace failing coils and worn plugs.

Key Features

• Vehicle Fitment: The kit is compatible with many GM 2.4L and related engines, ensuring direct fitment for models such as Equinox, Malibu, Terrain and others so no modification is needed.
• OE-Compatible Design: Coils and plugs meet strict OE specs and match common reference numbers, making replacement predictable and avoiding wiring or mounting surprises.
• Fast Ignition: The coils claim ignition within 0.1-0.2 seconds, which helps achieve quicker starts and steadier idle once the old parts are removed.
• Iridium Electrodes: Spark plugs use a premium iridium central electrode for longer life and more stable combustion, which can improve fuel efficiency and throttle response.
• Durability Features: Coils are described with high temperature corrosion resistance and RF interference protection, aimed at lasting performance in engine bay conditions.
• Easy Installation: OE-compliant fit and familiar plug-and-play mounting make the set convenient for home mechanics and service shops alike.

Who It's For

This kit is best for owners of compatible GM models with 2.4L engines who are experiencing misfires, rough idle, poor fuel economy or check-engine lights related to ignition components. It suits DIY installers who prefer an OE-style fit and want to replace all four coils and plugs at once for a consistent service interval.

Those who should look elsewhere are owners of non-listed model years or engines other than the specified 2.4L family, and technicians seeking branded OEM parts with extended manufacturer warranties. Also, buyers prioritizing long-term proven durability above value-priced alternatives may prefer factory-branded options.

Pros & Cons

Pros

• Good OE-style fitment across many GM models, which reduces installation time and fuss.
• Iridium plugs and high-voltage coils provide a stronger spark and smoother engine operation.
• Easy to install for home mechanics and offers clear value compared with buying coils and plugs separately.
• Positive customer feedback highlights functionality, fit and immediate performance improvement.

Cons

• Durability has mixed customer feedback, with at least one report of premature coil failure, so long-term life may vary.
• Not suitable for vehicle models or engine sizes outside the listed fitment; always verify fitment before buying.

Specifications

Brand	PHILTOP
Package	Set of 4 ignition coils and 4 iridium spark plugs
Compatible Engines	GM 2.4L family and select 2.2L/2.0L applications listed
Reference Numbers	UF491, 12578224, 12578244, 12589623, 12629646, UF645
Coil Features	Fast ignition 0.1-0.2s, high temp corrosion resistance, RF protection
Spark Plug Type	Iridium central electrode for extended life and stable idle

Our Verdict

The PHILTOP 4-pack of ignition coils and iridium spark plugs is a practical, cost-conscious replacement for GM owners with the specified fitment who want an OE-like swap that restores performance. It delivers clear improvements in idle, starting and throttle response for the price, but prospective buyers should verify fitment and be aware that durability reports are mixed compared with some factory-branded parts.

Frequently Asked Questions

Will this set fit my 2012 Verano?
Yes, the 2012 Verano 2.4L is listed in the vehicle fitment and should accept these coils and plugs as a direct replacement.

Are the spark plugs iridium?
Yes, the included spark plugs use an iridium central electrode designed for longer life and more stable combustion.

What if a coil fails early?
Some customers reported mixed durability; if a coil fails soon after installation, check warranty or seller return options and confirm correct installation and engine conditions.