Ignition Lead

Leading Ignition Leads for NZ Vehicles

The ignition system is a critical network of components responsible for your engine’s combustion process. At the heart of this system are the ignition leads, also known as spark plug wires. These vital conduits transfer high-voltage electrical current from the ignition coil or distributor to the spark plugs, creating the spark needed to ignite the air-fuel mixture. As a core component of your vehicle’s ignition parts, your leads must be in top nick for engine health, fuel efficiency, and reliable performance.

Why Top-Notch Leads Are Must-Haves

Not all ignition leads are created equal. Buying the best ignition leads means selecting products that withstand extreme under-bonnet temperatures, vibrations, and chemical exposure. Any leads worth their salt will feature decent insulation (typically an outer layer of silicone) that prevents voltage leakage and ensures as much energy reaches the spark plug as possible. They will also provide excellent RFI (Radio Frequency Interference) suppression so that you can protect modern on-board electronics and ensure clear radio reception.

Failing or low-quality leads can cause engine misfires, a noticeable decrease in power, poor fuel economy, and rough idling. If you are experiencing these symptoms, it might be time to get them sorted.

Sorting the Right Leads for Your Ride

Selecting the correct set of ignition leads is essential for a successful replacement. Each set fits particular makes and models, with precise lengths and terminal ends to ensure a perfect connection. Whether you require a durable set of ignition leads for a Toyota LandCruiser or a high-performance set for a specialised vehicle, we have a solution to meet your needs. The leads work in close concert with the ignition distributor to deliver the spark at the right time. This process starts when you turn the key in the ignition barrel. Explore Meta V Parts’ catalogue and buy ignition leads, knowing you’re choosing parts you can count on.

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Got Questions About Ignition Leads?

What are the main signs of failing ignition leads?

Common symptoms include a rough engine idle, noticeable engine misfires (especially under load), reduced acceleration, poor fuel economy, and potentially a ‘check engine’ light appearing on your dashboard.

How often should ignition leads be replaced?

As a general guide, it’s good practice to inspect them during regular servicing and consider replacement every 60,000 to 100,000 kilometres (or if there are signs of wear like cracking, burning, or corrosion). Please note that replacement intervals can vary depending on the vehicle manufacturer and the quality of the leads.

What is the difference between OEM and aftermarket ignition leads?

OEM (Original Equipment Manufacturer) leads are what your vehicle was fitted with at the factory, while high-quality aftermarket leads — like those we supply — meet or exceed OEM specifications. Opting for aftermarket often enhances durability or performance characteristics at a competitive price.

Can I replace my ignition leads?

Yes, for many DIY mechanics, replacing ignition leads is a straightforward task — but if you’re at all unsure about the job, we strongly advise hiring a professional mechanic instead. If you’re going the DIY route, you need to replace the leads one at a time to avoid mixing up the firing order, which would prevent the engine from running correctly. Always ensure the engine is off and cool before starting work.

Why are there different types of conductor cores in ignition leads?

Carbon cores offer excellent RFI suppression for modern vehicles; in contrast, solid wire or mag cores (spiral-wound wire) provide lower resistance for maximum voltage and are often best for classic or high-performance applications.