This is a clearance listing. The item has been installed and might have been run. Note that clearance items are non - returnable. These NGK Laser Iridium spark plugs are a great choice for your vehicle. They fit 2015 - 2021 Subaru WRX and 2014 - 2018 Subaru Forester models. Sold as a set of four, these spark plugs come with many great features. The corrugated ribs stop flashover, and the pure alumina silicate ceramic insulator offers excellent strength and heat transfer. The copper core helps remove heat, and triple seals prevent leakage. They have a long lifespan of 100,000 miles and come with a 60 - day manufacturer warranty. Why pay over $75 at competitors or local auto parts stores when you can save big with us? The spark plug has a 12mm thread diameter, 1.25mm thread pitch, a flat seat type, 26.5mm reach, 9/16' (14mm) wrench diameter, a solid terminal type, and a 0.6mm gap. The center electrode tip is made of iridium with a copper core, and the ground electrode is nickel with a standard taper - cut shape. It has a 5k Ohm resistor, a manufacturer heat range of 8, and specific torque specs for cast iron (10.8 - 18 lb. ft.) and aluminum (10.8 - 14.5 lb. ft.). Always check the plug gap before installation. NGK Laser Iridium spark plugs offer the best mix of performance and longevity. Import Image Racing is an authorized NGK dealer, so your purchase is always authentic and covered by the manufacturer warranty.
Using these NGK spark plugs is straightforward. First, make sure your vehicle is turned off and has cooled down. Then, carefully remove the old spark plugs using a suitable wrench. Before installing the new spark plugs, always check the gap to ensure it's correct. Install the new plugs and tighten them according to the torque specs: 10.8 - 18 lb. ft. for cast iron engines and 10.8 - 14.5 lb. ft. for aluminum engines. As for maintenance, these spark plugs are designed to last 100,000 miles. However, it's a good idea to check them during regular vehicle servicing. If you notice any signs of damage or poor performance, it might be time to replace them. Remember, these are clearance items and are non - returnable, so handle them with care during installation.
