Ignition Coil Pack and Iridium Spark Plugs Set for Toyota 3.5L V6

In this review the focus is on a combined replacement kit that includes six ignition coils and six iridium spark plugs designed specifically for Toyota and Lexus 3.5L V6 engines. The bottom line: this kit is for DIY mechanics and professional technicians who need a full-cylinder ignition refresh that matches common OE numbers and delivers improved combustion and longevity. The reviewer found the set best where compatibility and component pairing matter most, providing a practical, value-oriented option for 2005-2018 Toyota and Lexus V6 models.

Key Features

• Vehicle Compatibility: Fits a wide range of Toyota and Lexus 3.5L V6 applications, covering Sienna, Avalon, Camry, Highlander, RAV4, Venza, RX350, ES350, RX450h and IS350 model years listed, which simplifies part selection for common V6 repairs.
• OE Replacement Numbers: Direct replacement for several OE numbers including UF487 and multiple 90919 references, which helps ensure proper fit and connector match to original wiring harnesses.
• High Performance Coils: Coils use copper wire with higher coil turns and are claimed to generate 35,000+ volts, promoting more complete combustion and the potential for improved fuel economy and smoother running.
• Iridium Spark Plugs: Spark plugs feature iridium center electrodes for quicker response and wear resistance, aimed at reducing cold start issues and minimizing idle shake.
• Complete Kit: The package contains six ignition coils and six iridium spark plugs, allowing a full bank replacement at once to restore even firing and consistent performance across all cylinders.

Who It's For

This kit suits owners of Toyota and Lexus V6 vehicles listed in the compatibility notes who prefer to replace all coils and plugs at the same time rather than piecemeal. It is also useful for independent shops and experienced DIYers who value matched components and clear OE cross-references when performing routine tune-ups or addressing misfires.

Shoppers who want OEM-branded boxes or factory warranty backing may want to compare alternatives; likewise, those with engines outside the stated years or different displacements should look for application-specific parts. For vehicles within the listed range, this set removes guesswork about matching plugs and coils.

Pros & Cons

Pros

• Good value: a full set of six coils and six plugs makes a single purchase practical for comprehensive maintenance.
• Claimed performance: higher coil turns and imported copper create a stronger spark which can improve combustion efficiency.
• Durable plugs: iridium electrodes offer long life and better cold-start behavior compared with conventional plugs.
• Clear OE cross-reference: multiple replacement numbers ease compatibility checks before purchase.

Cons

• Mixed feedback on power: some users report varied experiences with perceived power gains, so improvements may be subtle or dependent on vehicle condition.
• Aftermarket fit: buyers who require original manufacturer packaging or specific OEM warranty terms may prefer factory parts.

Specifications

Brand	HYR
Included Parts	6 ignition coils and 6 iridium spark plugs
Engine Fitment	Toyota/Lexus 3.5L V6
Compatible Models	Sienna, Avalon, Camry, Highlander, RAV4, Venza, RX350, ES350, RX450h, IS350 (listed years)
OE Numbers Replaced	UF487, 90919-02255, 90919-A2004, 90919-A2002, 90919-02251, and others
Coil Construction	Copper wire with higher coil turns (claimed 35,000+ volts)
Spark Plug Type	Iridium center electrode

Our Verdict

This coil and iridium plug kit is a pragmatic choice for owners of the listed Toyota and Lexus 3.5L V6 models who need a full ignition refresh without sourcing parts separately. It combines claimed high-voltage coils and long-life iridium plugs at a competitive price, making it a sensible value buy for restoring smooth idle and reliable starts, especially when OE cross-reference matching is important.

Frequently Asked Questions

Will this kit fit my 2012 Highlander 3.5L?
Yes, the kit lists compatibility with 2008-2015 Highlander 3.5L V6 models, but always confirm by comparing OE numbers and connector types.

Are the spark plugs iridium?
Yes, the included spark plugs use iridium center electrodes for improved wear resistance and response.

Does the package include all coils and plugs needed for one engine?
Yes, the package contains six ignition coils and six iridium spark plugs, sufficient for a full bank replacement.