RAWOK Ignition Coil & 4 Double-Iridium Spark Plugs Kit UF669 for GM 1.4L Turbo — OEM Fit, Long-Life

RAWOK's kit pairs one UF669 ignition coil with four double-iridium spark plugs (1675) as a direct-fit replacement for GM 1.4L turbo engines, restoring ignition reliability and consistent spark performance.

This replacement kit is engineered to match OEM specifications for 1.4L (1364cc) turbocharged Chevrolet and Buick engines found in Cruze, Sonic, Trax, and Encore model years listed. The components are designed for straightforward installation, stable electrical output, and the corrosion- and wear-resistant benefits of double-iridium electrodes. Use this kit when misfires, rough idle, or poor throttle response indicate worn ignition parts, or as part of scheduled maintenance to maintain consistent combustion.

How does this coil and spark plug kit improve engine starting and idle?

The UF669 ignition coil supplies a strong, stable secondary voltage while the double-iridium spark plugs sustain a focused, long-lasting spark, which together reduce misfires and smooth idle. Their matched design helps the engine ignite the air/fuel mixture more consistently across all cylinders under typical operating conditions.

• UF669 coil built to OEM electrical and thermal tolerances
• Double-iridium plugs provide better electrode durability and stable gap over time
• Reduced tendency for plug fouling and intermittent misfires
• Plug life expectancy up to roughly 62,000 miles under normal use

Will these parts fit my vehicle and how do I confirm compatibility?

This kit fits GM 1.4L turbocharged engines (1364cc) commonly used in specific Cruze, Sonic, Trax, and Buick Encore model years. Always verify fitment by entering your vehicle details in the vendor's confirmed-fit tool or comparing your OEM part numbers to UF669 (coil) and PFR7S8EG / D521C-style plug equivalents.

• Compatible with Chevrolet Cruze (2011–2015, including Cruze Limited 2016), Sonic (2012–2020), Trax (2015–2021)
• Compatible with Buick Encore (2013–2021)
• Engine requirement: 1.4L turbocharged, 1364cc, 83ci
• Check OEM part numbers and vehicle fitment tool before purchase

What performance and durability benefits do double-iridium plugs offer?

Double-iridium electrodes use fine, hard metals on both center and ground electrodes to maintain a precise gap and resist erosion, which preserves ignition quality over longer intervals. The result is steadier combustion, longer service intervals compared with conventional plugs, and reduced need for early replacement in standard driving conditions.

• Finer electrode tips require less voltage to fire reliably
• Improved resistance to electrode wear and corrosion
• More consistent spark energy across the plug life
• Expected service life up to about 62,000 miles when installed correctly

How straightforward is installation and what should I prepare?

These components are manufactured to OEM specifications for a direct-replacement experience and are typically installed with common hand tools. Basic precautions—cool engine, disconnect battery, clean spark plug wells, and use the correct torque—help ensure a reliable, long-lasting installation.

• Install on a cool engine and disconnect the negative battery terminal
• Use a torque wrench to the OEM-specified torque for plugs and coil mounting
• Replace one cylinder at a time to avoid mix-ups and ensure correct firing order
• Inspect wiring harness and connectors; replace if damaged or corroded

Who is this for: RAWOK's UF669 coil and four double-iridium 1675 plugs are aimed at owners and technicians of GM 1.4L turbo vehicles who want an OEM-quality replacement that balances longevity, ignition stability, and value. If your Cruze, Sonic, Trax, or Buick Encore shows signs of ignition wear, or you’re preparing for a maintenance service interval, this kit provides direct-fit components designed to restore reliable spark performance without aftermarket tuning.