X4XZ UF311 Ignition Coil & 9807B-561BW Double Iridium Spark Plug Kit for Honda/Acura — Replaces UF583

Overview

The X4XZ UF311 ignition coil paired with the 9807B-561BW double iridium spark plug is designed as a cohesive replacement kit for a select lineup of Honda and Acura engines. Rather than a generic upgrade, this set emphasizes practical compatibility, reliable electrical delivery, and a straightforward installation path. Built with quality materials and OE-inspired design intent, the kit aims to support steady ignition performance across key models without overselling guarantees.

Compatibility and Fit

Designed to cover a broad range of popular Honda and Acura applications. Compatibility highlights include the following engines and years, with more details available in the product gallery:

• 2003-2007 Honda Accord 2.4L
• 2002-2011 Honda Civic 2.0L
• 2002-2009 Honda CR-V 2.4L
• 2003-2011 Honda Element 2.4L
• 2004-2005 Honda S2000 2.2L


• 2006-2011 Acura CSX 2.0L
• 2002-2006 Acura RSX 2.0L

For a full vehicle list and exact fit notes, please refer to the second main image in the listing before purchasing.

What’s Included

• Ignition Coil Packs x4
• Double Iridium Spark Plug x4

Key Benefits You May Notice

• Potentially smoother cold starts and steadier idle thanks to high-quality ignition components.
• Consistent spark delivery over time with a long-lasting iridium plug design that supports extended service intervals.
• Reduced radio frequency interference through a stainless-steel spring and ferrite noise suppressor in the coil assembly.
• Durable thermoplastic coil connector designed to resist heat and thermal cycling for a reliable connection.

Why This Kit Stands Out

The kit aligns with OE design intent while offering practical improvements in materials and construction. The combination of a robust ignition coil and double iridium plugs is aimed at supporting dependable starting and consistent combustion across the listed engines. While results can vary by condition and driving style, these parts are intended to contribute to smoother operation and predictable maintenance needs over time.

Installation Notes and Support

Package contents are intended for straightforward replacement on compatible engines. An instruction manual is not included, but 24/7 customer service and a one-year product service are available should you need assistance with installation or questions about fit.

Bottom Line

For buyers seeking a unified ignition replacement that mirrors OE form and function, the UF311+9807B-561BW kit offers a complete set for multiple Honda/Acura platforms. It is positioned as a practical maintenance option rather than a guaranteed performance upgrade, with emphasis on compatibility, build quality, and long-term durability.