CARFIX

NGK Iridium Spark Plug

NGK Spark Plugs — NGK Iridium Spark Plug — part number IFR6T11

NGK Spark Plugs · Part number IFR6T11 · NZ$36.00 incl. GST

Spark plugs are the unsung heroes for a huge range of Japanese and European vehicles, from zippy Lotus Exiges to smooth Lexus LS 400s, ensuring your engine runs sweet as a nut, sips fuel, and keeps humming along.

Price

NZ$36.00 including GST. Part number IFR6T11.

Fits these vehicles

Description

Spark Plugs: Your Engine's Best Mate — Featuring NGK
> Right, let's talk spark plugs! These little beauties are absolutely crucial for your petrol engine, kicking off that combustion party that gets you down the road. When they start to wear out, things can get a bit rough — think misfires, burning more juice than you should, and just a generally grumpy engine. Whether you're trying to keep a Toyota Estima Hybrid super-efficient or squeezing every bit of performance out of a Lotus Exige, having good plugs is a no-brainer.
Signs It's Time for a Tidy Up
• Engine feeling a bit rough, maybe misfiring or idling like it's got a wobble, especially noticeable in older luxury rides like the Lexus LS 400.
• Suddenly filling up at the pump more often? Your fuel economy might be taking a hit, whether you're in a daily runner like a Toyota Corolla Rumion or a family wagon like the Toyota Highlander Hybrid.
• Struggling to get the engine to kick over when you turn the key.
• Lost that get-up-and-go feeling? Sluggish acceleration can be a real drag, particularly in performance machines like the Toyota Celica TS.
• That pesky Check Engine Light (CEL) has popped on, often pointing to a misfire issue.
Will it pass WOF?
Yep, dodgy spark plugs can churn out extra emissions and cause misfires, which is a fast track to a WOF fail. A smooth-running engine is non-negotiable for passing your Warrant of Fitness here in Aotearoa.
DIY or Workshop?
Difficulty rating: 4/10 (for most 4-cylinder engines) to 7/10 (for V6/V8 engines or those with difficult access like some Lexus models).
Estimated time: 1-3 hours, depending on engine configuration and accessibility.
Tools required: Spark plug socket set (various sizes), ratchet, extension bars, torque wrench, spark plug gap tool (if not pre-gapped), dielectric grease, anti-seize compound.
Expert Recommendation
Bob @ CARFIX reckons you should treat spark plug replacement as a regular tune-up, just part of keeping your ride in tip-top shape. Letting worn-out plugs fester can lead to a whole heap of headaches, from guzzling more fuel to potentially damaging your catalytic converter — and those repairs can seriously sting the wallet. Our NGK spark plugs are a fantastic choice, known for being tough as nails and performing consistently, perfect for everything from the daily school run in a Toyota Avensis to tearing up the track in a Lotus Exige.
Bob @ CARFIX is always on hand to help you work out exactly what part you need for your Toyota, Lexus, or Lotus. Make sure you head over to Bob's Shop for a chat!

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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.