BDFHYK Ignition Coil Pack and Iridium Spark Plug Kit — 4‑Pack for Honda/Acura 2.0–2.4L (UF583/UF311, 9807B‑561BW)

BDFHYK's set combines four replacement ignition coil packs (UF583/UF311) with four iridium spark plugs (9807B-561BW) engineered to restore reliable ignition for select Honda and Acura 4-cylinder engines.

This complete ignition kit is built for owners who need a direct-fit replacement for worn coils and plugs on models such as Honda Accord (2003–2007 2.4L), Civic (2002–2005 2.0L), CR-V (2002–2009 2.4L), Element (2003–2011 2.4L), Acura CSX (2006–2011 2.0L) and RSX (2002–2006 2.0L). BDFHYK supplies coils made from quality materials (silicon steel cores, Japan-sourced rubber seals, Germany-varnished winding) and iridium-tip plugs with a durable ceramic insulator, packaged as a matched four-cylinder service kit. Always verify OE numbers and vehicle fitment before purchase.

How do these ignition coils and iridium plugs improve everyday drivability?

Replacing old coils and worn spark plugs can bring back smoother starts, steadier idling and more consistent throttle response. The iridium electrode offers a focused spark that supports cleaner combustion, while the rebuilt coil pack assembly aims for steady voltage delivery to each cylinder.

• Restores strong ignition for reliable cold starts and quick throttle response
• Iridium plugs resist fouling and maintain stable gaps longer than standard plugs
• Coils use corrosion-resistant materials and factory-style electrical connectors

Which vehicles and OE numbers does this BDFHYK kit fit?

The kit targets a set of 4-cylinder Honda and Acura models across early-2000s to early-2010s production years. Before installing, cross-check your vehicle’s original equipment numbers and engine code to confirm compatibility.

• Common OE references: UF583, UF311, 6732301, 30520RRA007, 30520PNA007
• Spark plug OE to verify: 9807B-561BW
• Typical compatible models: Accord, Civic, CR-V, Element, Acura CSX, RSX

What are the construction and quality features of the coil packs and plugs?

BDFHYK emphasizes component longevity by using selected raw materials and manufacturing practices. Coils feature high-grade silicon steel cores and varnished wire for improved insulation, while the plugs use an iridium tip and precision ceramic to resist wear.

• Coils: silicon steel core, Japan-sourced rubber boot, Germany-varnished winding
• Plugs: iridium electrode and optimized ceramic insulator for stable firing
• Includes coil installation guide and packaged as a matched four-cylinder set

When should I replace the coils and spark plugs together?

If your vehicle exceeds roughly 80,000 km (about 50,000 miles) or shows symptoms like rough idle, hesitation on acceleration, increased fuel use, or intermittent misfires, replacing both coils and plugs together is a sensible approach. A matched set reduces the chance of mismatch-related drivability issues and simplifies maintenance.

• Signs: engine shake, slow acceleration, failed starts, increased fuel consumption
• Recommended when original parts are aged or when troubleshooting misfires
• Changing both ensures consistent performance across all cylinders

Who is this for: this BDFHYK ignition coil and iridium plug set is intended for DIY mechanics and professional technicians working on compatible Honda and Acura 4-cylinder engines who want a complete, factory-style replacement. Choose this kit if you need a direct-fit four-pack solution with upgraded plug electrodes and thoughtfully sourced coil components. Always verify OE numbers (e.g., UF583/UF311, 9807B-561BW) and your vehicle’s year/engine before ordering to ensure fitment and avoid returns.