CARFIX

NGK STD V-Groove Resistor Spark Plug

NGK Spark Plugs — NGK STD V-Groove Resistor Spark Plug — part number ZFR6K-11

NGK Spark Plugs · Part number ZFR6K-11 · NZ$23.00 incl. GST

For your trusty Honda's VTEC or i-VTEC engine, found in popular Kiwi cruisers.

Price

NZ$23.00 including GST. Part number ZFR6K-11.

Fits these vehicles

Description

Spark Plugs: Keep Your Honda Humming — Bob's Guide
> Right, so your spark plugs are the tiny titans igniting the fuel in your engine's combustion chamber. Now, Honda's VTEC and i-VTEC engines are a bit like finely tuned athletes — they're super sensitive to having top-notch plugs because of their clever variable valve timing systems that work across the whole RPM range. When those electrodes get tired or gunked up, the spark fizzles, causing misfires that these precision-engineered Honda powerplants just won't put up with. Let's get 'em sorted!

Symptoms That Led You Here
• Rough idle or engine vibration at traffic lights
• Hesitation or stumbling during VTEC engagement at higher RPM
• Noticeably reduced fuel economy on your daily commute
• Check engine light with misfire codes (P0300-P0304)
• Hard starting, especially on cold Kiwi mornings
• Loss of that characteristic Honda smoothness and responsiveness

Will it pass WOF?
Spark plugs themselves aren't a direct WOF inspection item, but the symptoms of worn plugs—excessive emissions, rough running, or a persistent check engine light—can cause your Honda to fail the visual smoke test or raise concerns during the inspection. Maintaining correct ignition ensures your CR-V or Accord runs clean.

DIY or Workshop?
Difficulty: 4/10 for most Honda 4-cylinders like the Accord and CR-V. Time: 30-60 minutes. Tools required: 10mm socket, spark plug socket (16mm typically for these Hondas), extension bar, torque wrench, and anti-seize compound. The inline-4 layout in these models provides decent access, though the Stepwgn and FR-V may require removing the engine cover. Always gap-check plugs before installation, even pre-gapped units.

Expert Recommendation
Honda engines thrive on quality ignition components, and worn spark plugs rob your VTEC system of the precise combustion it needs to deliver that famous power band. CARFIX and Bob recommend replacing spark plugs every 30,000-40,000km for standard copper plugs, or up to 100,000km for iridium/platinum variants. Bob @ CARFIX is always on hand to help you work out exactly what plug type and heat range suits your specific Honda. Make sure you head over to Bob's Shop for a chat!

Fitment Notes
This plug fits a wide range of Honda K-series and R-series engines across the 2001-2012 era, including the CR-V (RD and RE series), Accord (CM and CL series), Integra DC5, Stepwgn, and Edix/FR-V. Always verify your specific engine code—some variants may require different heat ranges or electrode configurations. The i-VTEC CR-V models (2007-2012) may have slightly different coil-on-plug access compared to earlier distributor-style setups.

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🛠️ Bob's Pro Tip: Do the Job Right!
> If you're replacing this spark plug, make sure you've got the right workshop prep, protection, and safety gear ready. Taking a bit of extra time and using the proper safety stands and cleaners makes all the difference for a professional result!

🧰 What Else You'll Need:
• Safety First: Always secure your vehicle on heavy-duty safety jack stands before working underneath. Never rely solely on a hydraulic jack.
• Clean Hands: Keep a pack of Nitrile Gloves handy to protect your skin from grease, oils, and chemical sprays.
• Preparation: Have microfibre towels and a suitable parts cleaner nearby to keep components clean during installation.