X4XZ Ignition Coil & Double Iridium Spark Plug Kit — 6-Pack Direct-Fit for Honda/Acura V6

The X4XZ UF242 ignition coil and 4503 double iridium spark plug kit is a direct-fit replacement set designed to restore reliable spark delivery and consistent ignition for compatible Honda and Acura V6 engines.

If your vehicle is showing signs of misfire, rough idle, or reduced fuel efficiency, worn coils or spark plugs are common causes. This kit bundles six ignition coil packs with six double-iridium spark plugs engineered to match or exceed original equipment fit and function for a range of late-1990s to 2010 Honda and Acura V6 models. Each component is built to resist heat, electrical noise, and wear so your engine can start smoothly and run more consistently under normal driving conditions.

Which vehicles will this kit fit?

This kit covers many Honda and Acura V6 applications from 1999 through 2010; check the exact years and engine sizes before ordering. It is most often used for 3.0L and 3.5L V6 models where the OE part numbers listed match your vehicle’s requirements.

• Common fits: 1999–2007 Honda Odyssey 3.5L V6, 2008–2010 Odyssey EX/LX 3.5L
• Also for: 2000–2003 Honda Accord 3.0L V6; 1999–2008 Acura TL 3.2L/2007–2008 TL 3.5L
• Additional: 2001–2003 Acura CL 3.2L and 2005–2008 Acura RL 3.5L
• OE/replace numbers included for cross-check: 30520-P8E-A01 and compatible alternate references

How does the double iridium spark plug improve performance?

Double iridium electrodes provide a finer, more durable spark tip that resists wear far longer than conventional plugs. That leads to a more consistent spark over extended mileage which helps maintain smoother idle and stable combustion under routine driving.

• Durable double iridium design for extended service life (up to long mileage intervals)
• Stable firing characteristics reduce misfire risk as plugs age
• Smoother cold starts and improved ignition consistency

What are the ignition coil construction and reliability features?

The ignition coils use heat-resistant thermoplastic housings and internal ferrite suppression to limit radio-frequency interference and withstand thermal cycling. Stainless-steel springs and robust electrical connectors help ensure solid high-voltage transfer to the spark plugs for dependable combustion.

• Thermoplastic coil connector resists heat-related cracking
• Internal ferrite noise suppressor reduces electrical interference
• Stainless-steel spring for reliable contact and voltage transfer

What is included and how easy is installation?

The kit contains six ignition coil packs and six double iridium spark plugs packaged together so you can replace all cylinders at once. Installation is straightforward for anyone comfortable with basic engine work, and the parts are manufactured to match OE mounting and electrical interfaces for direct bolt-in replacement.

• Contents: 6 ignition coils + 6 double iridium spark plugs
• Direct-fit design matches OE mounting and connector types
• Basic tools required; no descriptive manual included in package

Who is this kit for? The X4XZ UF242 + 4503 kit is aimed at DIY mechanics and professional technicians servicing late-model Honda and Acura V6 engines who want OE-compatible ignition coils paired with long-life iridium plugs. Choose this set if you need a full-cylinder renewal to address misfires, restore drivability, or perform routine preventive maintenance. If you’re unsure about fitment, compare your vehicle’s original part number to the cross-reference list or contact customer support for verification; X4XZ also offers one-year product support for installation or quality questions.