UF620 Ignition Coil & 4504 Double Iridium Spark Plug Kit - Reliable

In this review the UF620 Ignition Coil & 4504 Double Iridium Spark Plug Kit is evaluated for drivers who need a direct-fit replacement for specific GM small four-cylinder cars. The kit pairs a single ignition coil pack with four double iridium spark plugs and is aimed at owners of 2009-2018 Chevrolet and 2009-2010 Pontiac models with 1.6L or 1.8L engines. The single biggest reason to consider this kit is the combination of a long-life double iridium plug and an improved coil design that addresses common misfire and rough-idle symptoms while promising easier installation and durable performance.

Key Features

• Vehicle compatibility: Compatible with multiple GM 1.6L and 1.8L models so buyers get a direct replacement without modifying the ignition system.
• Double iridium spark plugs: Plugs use double iridium for a consistent, stable spark and a long service life, reducing the frequency of replacements up to about 100000 kilometers under typical use.
• Improved coil construction: The ignition coil uses premium materials and a thermoplastic connector to resist heat and thermal cycling, helping to maintain a solid electrical connection.
• Noise suppression: Internal ferrite noise suppressor and stainless-steel spring help prevent radio frequency interference while transferring high voltage to the plugs.
• OE fit and part references: Matches OE numbers such as UF620, 4504, C1646 and others, simplifying parts lookup and ensuring proper fit.
• After-sales support: One-year product service and 24-hour customer support provide reassurance for installation or quality questions.

Who It's For

The kit is best for owners of 2009-2011 Chevrolet Aveo and Aveo5 1.6L, 2011-2015 Chevrolet Cruze 1.8L, 2016 Cruze Limited 1.8L, 2012-2018 Chevrolet Sonic 1.8L, and 2009-2010 Pontiac G3 and G3 Wave 1.6L who need a direct replacement ignition coil and four spark plugs. It suits DIY enthusiasts and independent mechanics who value an OE-referenced part set and want components that aim to restore engine smoothness and fuel efficiency.

Those who should look elsewhere include owners of nonlisted engines or model years, and drivers who prefer branded original equipment from their vehicle maker; compatibility should be verified against the vehicle list image prior to purchase.

Pros & Cons

Pros

• Good fit and build quality that many customers report install quickly and restore smooth running.
• Double iridium spark plugs offer long life and consistent spark performance, reducing maintenance frequency.
• The coil pack design includes noise suppression and heat-resistant connector materials for reliable operation.

Cons

• Package does not include an instruction manual, so novices may need installation guidance.
• Compatibility is limited to the listed GM 1.6L and 1.8L models; this kit is not universal.

Specifications

Our Verdict

The UF620 ignition coil and 4504 double iridium plug kit is a practical, value-oriented replacement for owners of the listed Chevrolet and Pontiac 1.6L and 1.8L models. It offers improved cold-start and running stability with long-life plugs and a robust coil design, making it a sensible buy for DIY installers and independent shops who need reliable OE-referenced parts without paying premium brand prices.

Frequently Asked Questions

Will this kit fit my 2013 Chevrolet Cruze 1.8L?
Yes, the kit is listed as compatible with 2011-2015 Chevrolet Cruze 1.8L, but buyers should verify engine code and consult the vehicle compatibility image.

How long do the double iridium plugs last?
The plugs are rated for long service life and the listing indicates working life around 100000 kilometers under typical conditions.

Is installation difficult without instructions?
Installation is straightforward for someone with basic tools and experience, though a novice may want a repair manual or online tutorial because the kit does not include printed instructions.