AULINK Ignition Coil Pack & 4504 Spark Plug Kit 4PCS — Direct-Fit for Chevy Sonic, Trax (1.4-1.8L)

AULINK 4PCS ignition coil pack with matching 4504 spark plugs replaces OE units to restore reliable ignition on compatible Chevy and Pontiac 1.4–1.8L engines.

This AULINK kit includes four ignition coils and four trivalent metal-plated 4504 spark plugs engineered as direct-fit replacements for part numbers such as UF-620, IC-723, and several OEM references. Built in TS16949-certified facilities and 100% function- and leakage-tested, the kit targets Chevy Aveo, Cruze, Sonic and Trax models (plus select Pontiac G3/G3 Wave) within the listed model years. The components are designed to withstand high temperatures and mechanical stress for consistent performance and easier installation where the original coils and plugs have reached end of life.

Will these ignition coils and spark plugs fit my Chevrolet or Pontiac?

These units are intended as direct-fit replacements for many small-block GM engines. Confirm compatibility by checking the listed OEM part numbers or your vehicle’s year, engine size, and original coil/plug part references before ordering.

• Compatible vehicles: Chevrolet Aveo/Aveo5 1.6L (2009–2011)
• Cruze 1.8L (2011–2015), Cruze Limited 1.8L (2016)
• Sonic 1.4L/1.6L/1.8L (2012–2018 vary by engine)
• Trax 1.8L (2013) and Pontiac G3/G3 Wave 1.6L (2007–2010)
• Cross-reference OEM numbers: UF-620, IC-723, 96476983, 55561655, etc.

How do these coils and plugs improve engine performance?

Replacing worn coils and old spark plugs restores consistent spark timing and combustion efficiency, which can reduce misfires, rough idling, and poor throttle response. While they don’t change engine output beyond factory specifications, fresh ignition components help the engine run closer to its designed performance and emissions behavior.

• High-temperature, impact-resistant coil construction for long-term durability
• Trivalent metal-plated spark plugs for reliable conductivity and corrosion resistance
• 100% function and leakage testing to minimize early failures
• Direct-fit design reduces installation time and need for modifications

What should I know about quality, testing and warranty?

AULINK manufactures these ignition coils and plugs in TS16949-certified facilities to meet automotive industry quality standards. Each part undergoes functional and leakage tests to catch defects before shipping, and the kit includes limited support should a manufacturing issue arise.

• Produced in TS16949-certified factories
• Each coil and plug receives 100% functional and leakage testing
• Service support: 1 year or 50,000 km limited coverage
• OEM cross-reference compatibility to replace a variety of original parts

How easy is installation and what tools are needed?

Installation is straightforward for mechanically inclined owners and technicians since these are direct-replacement parts. Basic hand tools and a torque wrench are typically all that’s required; follow your vehicle’s service manual for spark plug gap, torque values, and coil mounting sequence.

• Direct-fit coils and plugs reduce adaptation work
• Recommended tools: ratchet, spark plug socket, torque wrench
• Observe correct spark plug gap and torque specs from the vehicle manual
• Replace one cylinder at a time to avoid cross-threading or mix-ups

Who is this for: This AULINK 4PCS ignition coil pack and 4504 spark plug kit is aimed at DIY mechanics, independent repair shops, and owners of compatible Chevy and Pontiac models who need a reliable, tested replacement for aging ignition components. It’s especially useful when diagnosing misfire codes, rough idle, or when restoring vehicle drivability after coil or plug failure. Always verify fitment with your vehicle’s OEM references before ordering.