Ignition Coil + Spark Plugs for Acura CSX (2006-2011) 2.0L

Direct-Fit Ignition Coil and Spark Plug Kit for 2006-2011 Acura CSX

What it Does: The ignition coil and spark plug tune-up kit replaces degraded factory ignition components on the 2006-2011 Acura CSX to restore precise combustion timing, eliminate cylinder misfires, and re-establish crisp throttle response.

The Stock Acura CSX Ignition Breakdown

Factory coil-on-plug packs on the FD5 chassis are seated deep inside the cylinder head wells of the K20Z2 engine, exposing them to continuous thermal radiation and engine vibration. Over extended mileage, heat soak deteriorates the internal epoxy insulation and degrades the primary and secondary copper windings. This leads to dielectric punch-through, spark blowout under load, and unburned fuel entering the exhaust stream. Combined with aged spark plugs suffering from electrode erosion and widened gaps, the system triggers hard starting, rough idle, and P0300 misfire DTCs.

The Engineering Solution

This balanced replacement kit pairs four high-output ignition coils with four matched spark plugs to renew ignition efficiency. The coils are manufactured with high-temp thermoplastic housings and reinforced silicone boots to resist dielectric arcing in high-heat cylinder head wells. Highly conductive copper core windings ensure instantaneous dwell recovery and strong secondary voltage across the entire rev range. Designed as a direct drop-in service kit, these units replace OEM part numbers 30520-PNA-007, 30520-RAA-007, and UF-311 without wiring modifications.

Technical Specifications

Compatibility

• 2006-2011 Acura CSX Base 2.0L L4
• 2006-2011 Acura CSX Premium 2.0L L4
• 2007-2011 Acura CSX Technology 2.0L L4

Frequently Asked Questions

Does this fit the FD5 CSX?
Yes, this is a direct fit for the 2006-2011 Acura CSX equipped with the K20Z2 2.0L engine.

Should anti-seize be used on the spark plug threads during installation?
Install the plugs dry to ensure accurate torque readings and prevent over-tightening inside the aluminum cylinder head.

The Acura High-Revving Caliber

The high-revving valvetrain of the Honda/Acura K-series architecture relies on sharp spark delivery to maintain complete fuel atomization. This ignition kit restores peak i-VTEC combustion stability, clean exhaust emissions, and linear power delivery from idle to redline.