4x NGK DCPR9E 2641 Standard Spark Plugs • £23.59 (2024)

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Seller: easypurchase1001 ✉️ (8,328) 99.7%, Location: Devon, GB, Ships to: WORLDWIDE, Item: 266722331221 4x NGK DCPR9E 2641 Standard Spark Plugs. NGK Standard Spark Plugs. Shown below is an over torqued spark plug that sheered due to user installation error. NGK states that incorrect torque values are responsible for up to 90% of all spark plug warranty claims. Standard Why Choose Us? | View Our Shop Description NGK Standard Spark Plugs The original equipment (OE) choice as fitted to millions of new vehicles worldwide. NGK's Standard spark plug range have gained a fantastic track record over many years and provide the ultimate price-to-performance ratio solution for any service. Features Triple-Gasket Sealing Process - Virtually eliminates the possibility of combustion gas leakage through the shell. Most other manufacturers only use two seals. Solid-Copper Core - Produces a more powerful spark with less firing voltage. Other manufacturers use a "copper coated" center core. Service Life & Performance - Field tested durability with a 30,000 mile service life. Corrosion Resistant - Zinc-Chromate coating for maximum protection to the elements which also acts as a release agent = no more seizing. Alumina Silicate Insulator - Virtually pure silicate to insure dielectric and physical strength, as well as better heat transfer away from the tip for maximum performance. Corrugated Ribs - Eliminates "flashover", which can cause misfiring and engine damage, especially in damp environments. IMPORTANT - WARNING ** DO NOT USE ANTI-SEIZE LUBRICANT SUCH AS COPPER SLIP ON THE THREADS WHEN FITTING THESE SPARK PLUGS ** Using such thread lubricants can result in over-torqued values by up to 20-25%. Torque wrench readings are rendered completely inaccurate and can result in major damage to the engines cylinder head, or sheer the spark plug threads. Virtually all modern spark plugs feature a special zinc-chromate shell plating which provides corrosion resistance to the elements, so no thread lubricant is required. Shown below is an over torqued spark plug that sheered due to user installation error. NGK states that incorrect torque values are responsible for up to 90% of all spark plug warranty claims. Incorrect torque can also result in poor engine performance, read below: Under-torqued spark plugs do not make full contact with the cylinder head which reduces the plug�s ability to transfer heat out of the combustion chamber, this results in elevated combustion temperatures and as such can cause pre-ignition and detonation. These two conditions can lead to engine damage. Evidence of under-torqueing can be seen via the crush washer gasket not being as thin as expected (unless it's a tapered type plug). Over-torqued spark plugs can cause stress to the metal shell, leading to thread breakage (sheer) as shown in the image below. Over tightening can also compromise the plug�s internal gas seal or even cause a hairline fracture to the insulator. Evidence of over torque is easy to spot, for example hex swelling is visible and usually the crush washer is thinner than expected. If the thread has sheered the breakage will look similar to the spark plug image shown below. It's advisable to use a good quality, calibration certified torque-wrench . Users should always wind down their torque-wrench to the minimum scale setting and never all the way down after each use. A fully loaded torque wrench left in storage for a long period of time can cause a 'set' in the spring and weaken it. The result can be an inaccurate torque reading. Care must also be taken to ensure the spark plug socket is not slanted at an angle as this can put pressure on the ceramic insulator causing it to crack. Installation Notes Compressed air should be used to clean the area around the existing spark plugs before removal. Torqueing the new spark plugs up against any form of debris and build-up in the threads may prevent the plugs from making full contact with the cylinder head, even if a torque wrench indicates otherwise. This can cause poor heat dissipation which leads to higher cylinder temperatures, possibly causing pre-ignition or detonation. On vehicles where positioning a torque wrench is difficult or impossible, finger tighten the plugs first and then follow the rotational guide shown on the NGK packaging with a standard wrench. If the engine design means it's difficult to fit or remove spark plugs (or even see them), the plug wrench may tilt off-axis or slip. If the socket slips on the plugs hex and the inside wall of it strikes the ribbing on the plug's insulator, or its terminal, the insulator may break. Some new spark plugs feature a washer gasket that is designed to be crushed during the last stages of tightening. This will feel different to tightening any normal bolt or nut up. Only use a spark plug gapping tool which pulls on the ground electrodes neck to adjust the gap on precious metal spark plugs. The only time anti-seize compound should be used is on vintage spark plugs that do not feature a specialised coating. Authenticity We only supply 100% genuine NGK spark plugs. In fact, we play a major active role in fighting back fakes by producing a series of website blog articles dedicated on showing you how to spot the dodgy ones! In a bid to help everyone understand how accurate some copies can be, we provide detailed side-by-side comparison photos of genuine spark plugs sat next to counterfeits that we've discovered online. providing help to all those who need it. Trust genuine, trust us! Simply type 'How to spot fake Iridium IX spark plugs' in a search engine and we'll sure to be near the top of the results. Vehicle Compatibility Please search for the 'NGK Part Finder' website on a search engine to verify plug fitment. If there's an eBay compatibility chart added to this listing, you must use it as a guide only and verify fitment with the NGK Part Finder website. The part finder website provides the latest compatibility data and includes many bug fixes! Need a Different Quantity? Other quantities are available in our shop. Simply search 1x, 2x, 3x etc before the spark plug part number. Wholesale discount orders are available - please contact us. Postage information is provided in the listing's postage tab above the description. Any other questions? Feel free to contact us

• Condition: New
• Unit Type: Unit
• Unit Quantity: 4
• Brand: NGK
• Hex Size: 16 mm
• Ignition Part Type: Standard
• Manufacturer Part Number: 2641
• MPN: 2641
• NGK Range: Standard
• Part Manufacturer: NGK
• Reference OE/OEM Number: 0297942, OE073, 3313, XU27EPR-U10R12A, 10R12X
• Stock Number: 2641
• Title Vehicle Default Gap 1: 0.6 mm

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