NGK IZKR7B Iridium Spark Plug – Stock No. 7563 The NGK IZKR7B is a high-quality iridium spark plug designed for reliable ignition under everyday driving and mild performance use. It delivers a strong, stable spark for clean combustion, smoother idle, and consistent power. Iridium’s fine-wire centre electrode needs less voltage to fire, which helps cold starts and reduces misfires. It also lasts longer than standard copper plugs. Use this plug to restore lost performance, improve throttle response, and maintain efficiency. It is also a safe choice for lightly tuned petrol engines that stay within manufacturer heat range guidance. Always check your vehicle’s fitment in our lookup or the Vehicle Fitment tab before ordering. Key benefits Fine-wire iridium tip for a strong, consistent spark Long service life and stable performance over time Resistor design to reduce electrical interference with the ECU OEM-grade sealing and corrosion-resistant shell Part number IZKR7B NGK stock number 7563 GTIN 87295175637 Category 686 – Spark Plug Heat range 7 (NGK scale) Centre electrode Iridium fine-wire Ground electrode Nickel alloy Resistor Yes Thread diameter 12 mm Thread reach 26.5 mm Seat type Gasket Hex size 14 mm Factory gap 0.8 mm (preset – adjust only if specified by the manufacturer) Terminal Solid Fitment guidance This plug suits selected modern petrol engines that specify NGK IZKR7B. For example, some Japanese and European 4-cylinder applications use this 12 mm, long-reach, gasket-seat iridium plug. Use our vehicle lookup to confirm exact fitment, or check the Vehicle Fitment tab for full details. Installation notes: Fit to a cool engine. Do not use anti-seize on plated NGK shells. Torque to the manufacturer spec. Only adjust the gap if your vehicle’s service data requires it. The price displayed is for a single plug, please add the desired amount to your basket. Additional Information Weight 0.05 kg Dimensions 10 × 3 × 3 cm Brand NGK
