Marsram Ignition Coil and Double-Iridium Spark Plug Kit for Toyota/Lexus 3.5L V6 — 6-Coil/6-Plug Set, UF487 Fit

This complete 6-coil and 6-plug set is engineered to restore reliable spark delivery and consistent combustion for compatible Toyota and Lexus 3.5L V6 models. The kit combines high-conductivity coils built with robust housings and copper windings plus double-iridium electrodes on the spark plugs to extend service life and resist wear under high heat. It's packaged for straightforward installation and backed by a one-year warranty for aftermarket peace of mind.

Will this kit fit my vehicle?

These ignition coils (UF487 and cross-references) and matching spark plugs are designed for a range of Toyota and Lexus V6 3.5L vehicles. Confirm your specific year and engine match the listed models before purchase to ensure compatibility.

• Compatible models include: Toyota Sienna 2007–2015, Camry 2007–2017, Highlander 2008–2015, RAV4 2006–2012, Venza 2009–2015, Avalon 2005–2018 and Lexus ES350 2007–2018.
• Replace part numbers: UF487, 90919-A2002, 90919-A2007, 9091902251 and related OEM references.
• Check your vehicle fit tool or factory part number to confirm match before ordering.

How are the coils and plugs built to last?

Marsram uses heat-resistant exterior materials and high-conductivity copper windings inside each coil to withstand engine temperatures while maintaining fast, consistent ignition response. The spark plugs feature iridium on both the center and ground electrodes for improved wear resistance and a longer service interval than standard plugs.

• Coil housings made from epoxy resin and reinforced engineering plastics for thermal resistance.
• Copper windings increase current transfer speed and spark consistency.
• Double-iridium electrodes provide greater corrosion resistance and extended durability.

What performance or maintenance benefits can I expect?

Upgrading to these coils and double-iridium plugs helps maintain steady combustion and can reduce misfires or rough idling that occur when ignition components age. While individual results vary with vehicle condition and driving habits, the design focuses on longevity and stable spark delivery rather than temporary performance spikes.

• Improved spark stability reduces the likelihood of misfires under normal operating conditions.
• Durable electrodes and robust coils decrease the frequency of replacements.
• Bundled 6-coil/6-plug packaging simplifies a full-bank replacement.

How easy is the installation and what does the package include?

The kit ships with six ignition coils and six spark plugs, sized for direct replacement in compatible V6 engines—installation follows standard ignition-coil and spark-plug service procedures. If you're comfortable with basic engine maintenance, the swap is straightforward; otherwise, a professional mechanic can complete the job quickly.

• Package contents: 6 ignition coils + 6 double-iridium spark plugs.
• Designed to meet or exceed OE form and fit for compatible vehicles for easy installation.
• Marsram offers a 1-year warranty and customer support for fitment or quality questions.

Who this is for: This kit is aimed at owners of Toyota or Lexus vehicles with the 3.5L V6 looking for a full-bank ignition refresh—especially those wanting longer-lived plugs and heat-resistant coils without returning to OEM pricing. It's suitable for DIY enthusiasts with basic mechanical experience and for technicians performing routine ignition maintenance or troubleshooting misfires.