The outstanding features of Bosch spark plugs include: Especially in motorcycle engines, with their high engine speeds, spark plugs must withstand special strains. Denso's Tough Plug design combines an ultra fine 0.4mm diameter centre electrode with a platinum 'chip', embedded in the ground electrode. The Bosch spark plug program is characterised by a broad market coverage for a wide range of requirements. Compare Compare Now From $6.97 USD Open Delay. We need more information to help you find the right products for your vehicle. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Top positive review. Our listing a part does not guarantee its availability. The same applies to Champion OE Iridium plugs as to Denso and NGK OE Iridium, if it's fitted as standard we wouldn't suggest changing it. We encountered an error while updating the page. Improved economy (though this depends largely on how much you enjoy the improved throttle response! The combustion conditions in engines and generators running on natural gas, methane etc are extremely harsh, wear of plugs can be extremely rapid, engines often run 24/7 and servicing is costly. Iridium is the ideal material for use in Industrial ignitor electrodes. Terms apply. *The gift card will be loaded to your linked Amazon.co.uk account. Amazon Platinum Mastercard A fine Iridium centre electrode and an embedded platinum chip in the ground electrode add to the performance and service life. There was a problem adding this item to your Basket Please try again later. Unable to add item to List. Service life for normally aspirated engines can be up to 30,000 miles but we would expect plugs to be past their best by this time, 20,000 miles is a more practical target and replacing after a shorter interval may provide greater savings in fuel economy. If the gap is adjustable and different from the gap specified by the engine manufacturer, it needs to be adjusted. Learn more about Bosch spark plugs. Your recently viewed items and featured recommendations, Select the department you want to search in. The use of high grade materials (superior to those of standard spark plugs) prevents contamination, abnormal erosion and wear. Reviewed in the United States on March 2, 2019. The ultra-fine wire design and laser welded tapered ground electrode deliver optimum performance, while the iridium center electrode and ground electrode help it to go the distance. Please choose a different delivery location. At Amazon.co.uk, you will earn more. Prices may be subject to change without notice. BOSCH – 9673 OE Fine Wire Double Iridium OE Replacement Spark Plug. 12 Point Socket 14mm Spark Plug Socket Universal High Visibility 3/8" Spark Plug Po... WOOSTAR L7T Spark Plug Replacement for 2 Stroke 33cc 43cc 47cc 49cc Engine Mini Poc... 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Usually a 0.6mm Iridium alloy centre electrode matched to a platinum chipped ground electrode for optimum service life without compromising performance. Initially its work was aimed at improving ignition technologies: in 1897 it became the world’s only magneto ignition systems supplier, and in 1902 Bosch spark plugs were presented. There is no close match for your standard spark plug, it isn't worth compromising plug design purely to use an Iridium plug type. Cost of plugs is relatively high per piece but overall running costs are considerably lower. Bosch Double Iridium Spark Plugs are engineered to deliver both high performance and long life, representing the best of OE spark plug technology. The result is that an Iridium electrode can be manufactured with an extremely small diameter, when compared to a traditional copper or even a platinum tipped electrode, without compromising the useful life of the electrode or spark plug. If a Denso OE Iridium plug is fitted as standard we would not recommend fitting any alternative part (unless the engine is heavily modified). Pure Iridium is difficult to work with, very brittle and does not have great electrical conductivity hence alloys are used to give the best combination of these properties. Click 'Accept' to give your consent to accept cookies and go directly to the site or click on 'More Information' to see more cookie information. We need more information to verify that this product fitsyour vehicle. Fitting an aftermarket Iridium plug may actually result in a drop in performance and service life. Though not as performance orientated as Denso's Iridium Power, Tough or Racing plugs, the IX range does provide an extended service life and improved performance over standard copper plug types. A limited range of OE spark plug program is characterised by a broad coverage! 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