To help you ensure accurate spark plug installation first time, please follow DENSOs specifications below: Appearance: The insulator foot section and electrode section are covered with dried, soft black carbon. As well as designing to optimize performance, DENSO produces a range of spark plugs with different electrode shapes and sizes that are suitable for different engine applications. The lifetime of these plugs meet any OE engine maintenance requirement. The plug heat range is too low, the injection timing is too advanced, etc.

As well as producing better ignitability than a Standard Nickel Plug, this is the first-ever fine-wired Spark plug without precious metal-based electrodes. The functions of JavaScript of your browser are nullified. This website uses cookies to offer appropriate service to the customer. Cause: Often this is due to overheating; pre-ignition is a phenomenon in which combustion occurs before ignition. This means theyre available at a lower cost and are suitable for a wide range of applications. Cause: Severely abnormal combustion, lack of attention to gap adjustment. The precise timing of the spark created by the spark plug ignites the fuel, triggering combustion. Please enable JavaScript and update the page in order to view our website. Specially shaped ground electrodes and a Denso patented 0.4mm diameter iridium centre electrode create high ignitability with low voltages. The two needle-thin electrodes in DENSOs patented Iridium TT design enable sparks to grow 360 degrees in all three dimensions, improving ignition performance and combustion output, increasing spark plug lifespan and reducing emissions. For further information, please check the links below, Financial report for the Fiscal Year Ended March 31, 2023. This voltage breaks down the natural insulation between these electrodes and an electrical spark is generated. Known as the heart of the engine, spark plugs play a key role in the ignition and performance of the entire engine. Effects: Power loss due to engine damage. The technology provides a performance upgrade versus the normal nickel equivalent with average lifespan is up to 40.000km. Please read Terms of Use about NGK SPARK PLUGs use of cookies, including the way of making cookies ineffective. Appearance: The centre electrode or ground electrode is melted or scorched.

With Iridium on the centre and Platinum chip on ground electrodes, these spark plugs are resistant to corrosion and erosion. DO NOT test for spark by grounding the spark plug next to spark plug hole. Effects: Loss of power when running at high speed or under high load. The spark. Appearance: The insulator leg section is scorched and extremely white with small black deposits. Rapid electrode wear.

Announcement on the conclusion of a Letter of Intents on establishing the joint-venture company with IMC International Metalworking Companies B.V. for the Cutting Tools business, Notice of investment from NGK SPARK PLUG CO., LTD. CVC Fund to German healthcare startup neoplas med GmbH ~Low temperature plasma jet therapy promotes wound healing and improves people's quality of life ~, Continued Selection as Global ESG Index "FTSE4Good Index Series" and ESG Indices Adopted by GPIF, Research Articles and Conference Presentations, Financial and Business Results Information, Sustainability DataNon-Financial Information, External Evaluation of Our ESG Initiatives. Cause: Repeated short-distance driving (driving with the engine cool), incorrect choking (overly rich air-fuel mixture), injection timing delay, plug heat range too high. Our spark plugs are suitable for 90% of car models and are designed to provide reliable performance in a range of engine types and for various applications. These Denso Iridium Longlife plugs provide superior spark performance and lifespan according to the car makers requirements. As engines downsize, spark plugs still need to provide similar or improved levels of spark performance. Appearance: The insulator leg section is cracked or broken. With platinum on both the centre and ground electrodes, these spark plugs are resistant to corrosion and erosion, meaning they can provide superior spark performance and lifetime on OEM level in excess of 60,000 km. Effects: Poor starting, misfiring, acceleration defect. spark plug wire set, I I - PartSelect 8. Developed in-house for a wide range of applications. In order to find the right plug for your vehicle, you need to consider the heat range, hex diameter, total length and horsepower of the engine, as well as inspecting the condition of the current plug, to choose a new one accordingly. This compact design creates a 1.4% improvement in power output at 110km/h compared to normal plugs and is recommended for motorcycle engines.

Super ignition spark plugs maintain a very long lifespan according to the car makers requirements. Designed with F1 performance in mind, the spark plugs ultra-fine centre electrode creates fewer misfires, even in difficult conditions, providing unbeatable acceleration and ignition performance. Cause: Oil leakage due to piston ring, cylinder, or valve guide wear (occurs easily to new engines and engines that have just been overhauled), high oil content in air-fuel mixture (2-stroke engines). Since our first design in 1959, weve been working to develop our spark plug technology and improve performance. Cause: Spark plug incorrectly tightened, engine cooling problem, ignition timing too early, spark plug heat range too low, severely abnormal combustion. Great care must be taken to ensure the safe installation of a spark plug: A spark plugs appearance and various engine symptoms can help to diagnose damage: What is the recommended torque and turning angle for my spark plug. This expertise informs the design of our huge range of compact spark plugs.

Performance is higher due to the Twin tip technology and the Denso patented 0.4mm centre electrode. Appearance: The insulator section and electrode section are black and lustrous with wet oily deposits. DENSO spark plugs provide the best optimum performance in a compact design. Super ignition is considered the best available technology for spark plugs. Although this strong spark only lasts for about 1/1,000 of a second, it has to be precisely and reliably timed to trigger the combustion of the fuel-air mixture. Built by DENSO in-house, with zero defects as standard. The well-timed combustion of the fuel-air mixture of gasoline and oxygen is what generates power in gasoline engines. Produced with Twin tip technology and a smaller centre electrode, DENSOs super ignition spark plugs provide the highest levels of performance even within the most extreme and challenging environments.

The Denso patented Twin tip upgrade- technology is now available in the lower price segment. Discover how DENSOs extensive range of spark plugs can improve the ignition performance of your OE vehicle.

This spark plugs unique electrode design uses platinum, meaning it can provide powerful performance and improve fuel consumption on daily journeys for at least 100,000 km. Our website uses JavaScript. To create this spark, a high voltage is passed between the centre electrode and ground electrode of the spark plug. There are spots on the insulator leg section and deposits of aluminium or other metal powder.