A-Premium Coil Pack & Iridium Spark Plugs for Honda Civic 2006-2011 1.8L L4 – 4-Piece Kit

Overview

The A-Premium Set combines four ignition coils with iridium spark plugs designed for Honda Civic models from 2006 to 2011 powered by the 1.8L inline-4 engine. Built for reliable ignition and smooth engine response, this kit aims to refresh the ignition system without requiring a complete vehicle overhaul.

Fitment and key specifications

Designed to fit 2006–2011 Honda Civic 1.8L L4 petrol engines, with reference numbers 30520-RNA-A01, 30520RNAA01, UF-582, UF582. The kit features a bolt-on valve cover mounting, blade-type terminals, and three coil terminals for a compact, integrated replacement.

• Vehicle Fitment: Honda Civic 2006-2011 L4 1.8L Petrol
• Reference Numbers: 30520-RNA-A01, 30520RNAA01, UF-582, UF582
• Specifications: ① Coil Terminal Quantity: 3; ② Terminal Type: Blade; ③ Mount Type: Bolt On; ④ Mounting Location: Valve Cover; ⑤ Primary Resistance(ohms): 0.86-1.05; ⑥ Secondary Resistance(KΩ): 5.5-6.7; ⑦ Spark Plug Material: Iridium+Nickel; ⑧ Gap Size(IN): 1.0-1.1; ⑨ Thread Diameter(MM): 14; ⑩ Installation Torque(N): 25-30N

Iridium spark plugs: what to expect

Iridium is a refined alloy used in the central electrode of the spark plug. It’s designed to extend the spark plug’s life and promote a steadier idle. In practice, you may notice improvements in engine responsiveness, potential fuel efficiency, and smoother starts, with emissions behavior that aligns with modern efficiency goals.

• Iridium-based electrodes may extend plug life and sustain performance over time
• Potential for more stable idle and smoother engine feel
• Possible gains in fuel efficiency and reduced emissions under typical driving conditions
• Faster engine starting compared to aged components

Installation, warranty, and real-world use

Each kit is designed for a bolt-on install with a recommended torque of 25–30 N and a 14 mm thread diameter. A-Premium backs this set with a one-year unlimited‑mileage guarantee, offering peace of mind as you refresh your ignition system. In everyday use, drivers often appreciate the quick, confident starts and the improved engine feel that comes with fresh coils and iridium plugs.

• Installation Torque: 25-30 N
• Thread Diameter: 14 mm
• One-year unlimited-mileage guarantee
• Kit contains four ignition coils and four iridium spark plugs for complete replacement

Why this kit could matter for your Civic

By refreshing ignition components with matched coils and iridium plugs, you may experience more consistent firing, crisper starts, and steadier idle. It’s a practical upgrade for drivers seeking reliability and efficiency without assuming uncertain outcomes. The kit’s comprehensive fitment and warranty support the idea of a straightforward, ready-to-go replacement for everyday driving needs.