4PCS UF247 Ignition Coils + 4PCS 7092 Iridium Spark Plugs - Coil Pack

In this review the author tests the 4PCS UF247 ignition coils paired with 4PCS 7092 iridium spark plugs as a budget aftermarket coil pack set for 1.8L Toyota-based engines. The bottom line: this kit is for owners who want a full ignition service pack that can restore misfires and improve idle quality without paying dealer prices. The review found the parts to be straightforward to install, noticeably improved engine smoothness on compatible vehicles, and offered clear fit and performance benefits when the OE numbers and spark plug dimensions matched the application.

Key Features

• Direct replacement OE match: The coils use the UF247 7092 OE reference so they are intended to replace factory coils with the same fitment and mounting points for an easier swap.
• Thread size and length specified: The included spark plugs have an M14 thread diameter and a 19 mm thread length so buyers can confirm correct plug seat and reach before installing.
• Premium materials for longevity: The coils are described as high performance premium quality units designed to work under varied conditions and offer a long service life.
• Powerful ignition capability: The set provides strong ignition output intended to improve starting, throttle response, and consistent running on compatible 1.8L engines.
• Complete kit convenience: Shipping four coils and four iridium plugs together makes routine maintenance faster and avoids mismatched components.

Who It's For

This kit suits owners of the specified Toyota-platform 1.8L vehicles - Corolla, Matrix, Prizm, Vibe, Celica and MR2 Spyder - who want a single-package replacement for worn coils and plugs. It is a practical option for DIYers and independent shops wanting to restore engine smoothness and address misfires without expensive dealer parts.

It is not ideal for vehicles outside the listed fitment or owners who cannot confirm thread dimensions and OE references before purchase. Those with newer or different-engine models should check compatibility carefully or look for model-specific OEM replacements.

Pros & Cons

Pros

• Good value: customers report strong improvements in engine feel for the price compared with buying coils and plugs separately.
• Ease of installation: the coils and plugs are straightforward to fit when the OE number and thread size match the vehicle.
• Improved running: reviewers noted better idle and fewer misfires after replacement, indicating reliable ignition performance.

Cons

• Fitment caution: a few users reported compatibility problems on unrelated models, so buyers must verify OE numbers and thread dimensions before ordering.

Specifications

Included items	4 ignition coils + 4 iridium spark plugs
Replace part / OE	UF247 7092
Spark plug thread diameter	M14 (0.55 in)
Spark plug thread length	19 mm (0.75 in)
Compatible engines	1.8L Toyota platform engines
Compatible models	Corolla, Matrix, Prizm, Vibe, Celica, MR2 Spyder (see detailed fitment)

Our Verdict

This coil pack and spark plug kit is a solid value for owners of the listed 1.8L Toyota-based cars who need a straightforward ignition refresh. When the UF247 7092 reference and M14 plug dimensions match the vehicle, the set restores smooth idle and reduces misfires at a lower cost than many OEM options, making it a recommended budget-conscious repair choice.

Frequently Asked Questions

Will these coils fit my Corolla?
They are designed for 2000-2008 Corolla 1.8L models; confirm the UF247 7092 OE number and plug thread dimensions against your vehicle before buying.

What are the spark plug thread dimensions?
The spark plugs use an M14 thread diameter (0.55 in) with a 19 mm (0.75 in) thread length as supplied in the kit.

Are these high performance units?
The product is described as premium quality with advanced materials for high efficiency and long service life, suitable for normal and varied driving conditions.