DENSO-IT20TT(#4714)

The IT20TT spark plug is a high-performance ignition plug featuring an iridium centre electrode with a fine-wire twin-tip design, built for strong, consistent sparks and dependable starting. A finer electrode needs less voltage to fire, which helps combustion efficiency, fuel economy and emissions performance.

Long-life electrode materials resist wear so the gap stays stable for longer. A quality ceramic insulator and plated shell help protect against fouling, heat and corrosion.

Specifications

• Part number: IT20TT
• Stock reference: #4714
• Electrode: Iridium twin tip
• Heat range code: 20
• Sold as: single plug
• Condition: new

Fitment and installation

Confirm the part number against your vehicle's specification or the plugs currently fitted, paying attention to thread size, reach, hex size and heat range. Fit to a cool engine, thread the plug in by hand first to avoid cross-threading and tighten to the manufacturer's torque value. Fine-wire plugs are pre-gapped, so avoid levering the electrode. Replace plugs as a full set for an even engine balance.

Worn spark plugs can cause misfires, rough idle, hesitation and higher fuel consumption, so replacing them at the recommended interval keeps the engine running at its best. Always follow the vehicle manufacturer's service schedule and fitting instructions, and have the work carried out by a qualified technician if you are not confident doing it yourself. Use the correct spark plug socket to protect the ceramic insulator during removal and fitting. Stocked in New Zealand and dispatched quickly, so your vehicle spends less time off the road. Buying the correct part the first time saves on labour, avoids repeat jobs and gets the vehicle back to work sooner. If you are unsure about fitment, send us your vehicle registration, make, model and year before ordering and we will help you confirm the right part. Pairing this part with a general inspection of the surrounding components is good practice, as related parts often wear at a similar rate. Quality replacement parts like this help keep running costs predictable and reduce the chance of an unexpected roadside breakdown. Regular maintenance with dependable replacement parts protects the value of your vehicle and helps it pass its next Warrant of Fitness or Certificate of Fitness inspection.