NGK Iridium Double Fine Spark Plug

NGK Spark Plugs · Part number DF8H-11B · NZ$71.00 incl. GST

G'day! For your high-performance Japanese rockets like the Nissan Skyline 370GT, 370Z, and Infiniti Q70, spark plugs are the unsung heroes, igniting the fuel-air mix to give you that sweet power, efficiency, and a purring engine.

Price

NZ$71.00 including GST. Part number DF8H-11B.

Fits these vehicles

• Infiniti FX (2008+)
• Infiniti FX (2008+)
• Infiniti G (2010+)
• Infiniti G (2010+)
• Infiniti M (2010+)
• Infiniti Q60 (2013+)
• Infiniti Q60 (2013+)
• Infiniti Q70 (2013+)
• Infiniti QX70 (2013+)
• Mitsubishi Dignity (2012+)
• Nissan 350Z (2005–2008)
• Nissan 350Z (2005–2009)
• Nissan 370Z (2009+)
• Nissan 370Z (2009+)
• Nissan 370Z (2009+)
• Nissan 370Z (2009+)
• Nissan 370Z (2009+)
• Nissan 370Z (2013+)
• Nissan 370Z (2013+)
• Nissan Elgrand (2010+)
• Nissan Fuga (2009+)
• Nissan Fuga (2009+)
• Nissan Skyline (2007–2015)
• Nissan Skyline (2008–2014)
• Nissan Skyline Crossover (2009+)
• Nissan Skyline Crossover (2009+)

Description

Spark Plugs: Keep Your Kiwi Rocket Firing on All Cylinders!
> Spark plugs are the real MVPs in your petrol engine, kicking off the combustion dance in the chamber. Over time, those electrodes can wear down, or carbon can muck things up, leading to a real drag on performance – think less power, worse fuel economy, and a grumpy idle, especially in those high-revving beasts like your Nissan 370Z or Infiniti Q70.
Is Your Ride Feeling a Bit... Off?
• Engine misfires or a rough idle, particularly when you first fire her up.
• Feeling sluggish? Reduced acceleration and overall engine power.
• Suddenly guzzling more petrol than usual? Decreased fuel efficiency.
• Struggling to get her started in the morning.
• That dreaded Check Engine Light (CEL) winking at you, often hinting at misfire codes.
Will it pass WOF?
While worn spark plugs won't directly flunk your WOF, their sneaky symptoms (like dodgy emissions, engine misfires, or that glowing Check Engine Light) definitely can. Keeping your spark plugs in tip-top shape means a happier engine and a smoother run through your WOF check.
DIY or Workshop?
Difficulty: 6/10 (Can be a bit fiddly, especially with tight engine bays and specific torque needs)
Estimated Time: 1-3 hours (depends on your engine and how easy it is to get to those plugs)
Tools Required: Spark plug socket set, ratchet, torque wrench, spark plug gap tool (if they're not pre-gapped), dielectric grease, anti-seize compound, extension bars, universal joint.
🛠️ Bob's "Get It Done Right" Companion Checklist
Before you dive under the bonnet, a true Kiwi DIYer knows preparation is half the battle! Here’s what Bob suggests you have handy to make this job a breeze and keep you safe:
• Safety First! Don't skimp on a good pair of Safety Glasses to protect your peepers from any unexpected bits. And trust me, your hands will thank you for some sturdy Nitrile Gloves – no one likes greasy mitts at smoko.
• Keep it Clean: A good can of Brake Cleaner or parts cleaner can be surprisingly handy for a quick wipe-down around the plug wells before you start, just to make sure no grit falls in.
• Smooth Operator: Don't forget a dab of Anti-Seize Compound on the new plug threads to make next time's job easier, and some Dielectric Grease for the spark plug boots to keep moisture out and ensure a good connection.
• The Right Tools: Make sure your spark plug socket has that rubber insert to protect the ceramic and hold the plug. And a torque wrench? Absolutely essential to avoid over-tightening and stripping threads – a real gut-wrencher if that happens!
Expert Recommendation
Bob at CARFIX reckons you should always swap out those spark plugs at the manufacturer's suggested intervals, or as soon as you spot any of those grumpy symptoms, to keep your engine humming and your fuel economy sorted. This NGK spark plug (SKU DF8H-11B) is a brilliant choice, known for its rock-solid reliability and performance, especially in those V6 VVEL engines found in many of the Nissan and Infiniti models we've talked about. Bob @ CARFIX is always keen for a yarn to help you figure out the exact part you need for your Nissan 370Z or Infiniti Q70. Pop into Bob's Shop for a chat – he's always got a good tip up his sleeve!
Fitment Notes
This specific spark plug is tailored for a range of high-performance Nissan and Infiniti V6 engines, including the ones tucked away in the Nissan Skyline 370GT (2007-2015), Infiniti Q70 (2013-onwards), Nissan 370Z (2009-onwards), and Nissan Fuga 370 GT (2009-onwards). Always, always double-check your vehicle's specific engine code and year model against the fitment details. Even within the same model range, there can be little quirks, so best to be sure!

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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.