CARFIX

NGK Standard Spark Plug

NGK Spark Plugs — NGK Standard Spark Plug — part number BP5ES

NGK Spark Plugs · Part number BP5ES · NZ$13.00 incl. GST

Right then, for your classic beauties like the Holden Monaro, Austin-Healey Sprite, or a sturdy Ford Fairlane, spark plugs are the absolute heart of your ignition system, firing up that air-fuel mix to keep your engine humming, your fuel bills down, and ensure she starts sweet as a nut, even on a frosty Southland morning. This NGK option is a real gem, and we've got other top-notch choices.

Price

NZ$13.00 including GST. Part number BP5ES.

Fits these vehicles

Description

Spark Plugs: Give Your Ride the Spark it Deserves! — Featuring NGK
> Let's be honest, nothing beats the thrill of a classic, but even the toughest old-school engines need a bit of love! Spark plugs are the unsung heroes, delivering that crucial zap to get combustion roaring. When they're looking a bit tired — think worn electrodes, a bit of carbon build-up, or insulation that's seen better days — you'll notice it. Misfires, a rough idle, and suddenly you're burning through petrol like it's going out of fashion. This is especially true for your treasured Holden Monaro, that nippy Austin-Healey Sprite, a sleek BMW 635 CSi, or a trusty Ford Fairlane, where a reliable spark isn't just nice to have, it's essential for that classic purr.

Symptoms That Led You Here
• Engine misfires or stumbling under acceleration
• Rough or uneven idle, especially when cold
• Noticeably increased fuel consumption
• Difficulty starting, particularly on cold NZ mornings
• Loss of power or sluggish throttle response
• Check engine light illuminated (on applicable vehicles)
• Visible electrode wear or heavy carbon deposits on old plugs

Will it pass WOF?
Spark plugs themselves are not a direct WOF inspection item. However, faulty plugs causing excessive exhaust emissions, misfires affecting safe vehicle operation, or a persistent check engine light can result in WOF failure. Maintaining correct spark plug condition ensures your classic or daily driver meets NZ emissions and safety standards.

DIY or Workshop?
Difficulty: 3/10 (most vehicles) to 6/10 (transverse engines, limited access)
Estimated Time: 30 minutes to 1.5 hours depending on engine configuration
Tools Required: Spark plug socket (typically 16mm or 21mm), ratchet with extension, torque wrench, feeler gauge for gap checking, anti-seize compound (aluminium heads), dielectric grease

For straightforward inline engines found in classics like the Austin Westminster or Chrysler Valiant, this is a satisfying weekend job. V-configuration engines or vehicles with intake manifold obstructions may require more patience.

Expert Recommendation
Bob and the CARFIX team recommend replacing spark plugs at manufacturer-specified intervals—typically every 15,000-30,000 km for copper-core plugs or up to 100,000 km for iridium/platinum types. For classic vehicle enthusiasts running Holden Monaros, Austin-Healeys, or vintage BMWs, fresh plugs restore that crisp throttle response and reliable starting these machines deserve. Bob @ CARFIX is always on hand to help you work out exactly what plug suits your classic, commercial, or daily driver. Make sure you head over to Bob's Shop for a chat!

Fitment Notes
This spark plug fits an extensive range spanning 1960s British classics (Austin A110 Westminster, Austin-Healey Sprite), iconic Australian muscle (Holden Monaro), Japanese commercials (Mazda E-Series, Ford Econovan), European performance (BMW 635 CSi), and American-influenced Australians (Ford Fairlane, Chrysler Valiant). Always verify the correct heat range and gap specification for your specific engine variant—older vehicles may require gap adjustment to factory specs, typically 0.7-0.9mm depending on ignition system type.

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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.