A-Premium Spark Plugs Iridium Platinum Fine-Wire Pack of 4 for L4 Honda/Acura (2.0L/2.4L)

A-Premium Iridium Platinum Spark Plugs pack of 4 are fine-wire, iridium-tipped plugs engineered to restore reliable ignition and extend service life for L4 engines in select Honda and Acura vehicles.

If your engine is misfiring, running rough, or showing reduced fuel efficiency, the right replacement spark plugs can make a measurable difference. These A-Premium spark plugs pair an iridium tip with a platinum core to deliver a focused spark, improved wear resistance, and a stable gap over long service intervals. They’re offered as a pack of four and match the thread, reach, and hex sizes specified for many 2.0L and 2.4L inline-four Honda and Acura applications.

Which vehicles and engines are these spark plugs compatible with?

These plugs are intended for specific Honda and Acura models that use 14 mm thread, 19.05 mm reach spark plugs with a 5/8-inch hex and fine-wire tip design. Always confirm the part reference numbers and fitment against your vehicle’s service manual or VIN before purchase.

• Common fits: Honda Civic (2002–2005) 2.0L, Accord (2003–2007) 2.4L
• Also fits: CR-V (2002–2009), Element (2003–2011), Acura RSX (2002–2006), CSX (2006–2011), TSX (2004–2008)
• Reference numbers supported: 6994, IZFR6K-11, XP5224, XS5224, IZFR6K11, 9807B5617W/WA0

How do iridium and platinum materials improve ignition and durability?

Combining an iridium tip with a platinum core concentrates the spark while resisting electrode erosion. The hard iridium tip maintains a sharp firing edge longer than conventional nickel electrodes, and the platinum core provides additional durability under combustion heat and stress.

• Iridium tip: concentrated, consistent spark for improved ignitability
• Platinum core: enhanced resistance to wear and oxidation
• Fine-wire design: reduced voltage requirement and cleaner combustion

What are the key specifications I should check before installation?

Match these measurements to your vehicle requirements to ensure correct fit and performance. Incorrect reach or thread diameter can damage the cylinder head or lead to poor sealing.

• Gap size: 0.044 inches (factory-set or pre-gapped)
• Thread diameter: 14 mm; reach: 19.05 mm
• Hex size: 5/8 inch; insulator height: 50.50 mm
• Resistance: 5000 ohms (integrated resistor to reduce radio interference)

When should I replace these plugs and what maintenance helps extend life?

A-Premium recommends replacing iridium-platinum plugs at extended intervals compared to conventional plugs, but actual life depends on driving conditions. Regular inspection and following recommended torque and installation procedures will reduce the risk of damage and help maintain engine efficiency.

• Suggested replacement interval: roughly 80,000–100,000 miles under normal driving
• Inspect for oil fouling, heavy carbon deposits, or damaged electrodes
• Use a torque wrench and manufacturer torque spec when installing

Who is this for: Drivers and DIY technicians who own compatible Honda or Acura L4 vehicles and want a long-lasting replacement spark plug that balances strong ignition, reduced maintenance frequency, and OEM-style fitment. These plugs suit owners aiming to restore smooth idle, steady acceleration, and consistent fuel economy without frequent replacements. If you’re unsure about fitment, cross-check the listed reference numbers or consult a trusted mechanic before ordering.