Upgrade your racing engine performance with the NGK #6364 spark plug (also known by its part number BKR6ES). Designed for high-stress applications, this reliable spark plug is ideal for quarter-midget racing, karting, youth motorsports, and any high-rpm small-engine setup where dependable ignition is critical. Key Features & Benefits: Engineered by NGK, a world-class manufacturer of performance ignition parts, ensuring precision, quality and consistent spark under demanding conditions. Part number BKR6ES corresponds to NGK #6364 — a trustworthy choice for your engine build, replacement or upgrade. Optimized heat range and electrode design help maintain proper combustion, reduce misfires and support cleaner performance. Built for durability in motorsport or high-RPM small-engine environments — perfect for youth racing teams, quarter midget karting and hobby racing. Easy to install: compatible with many small-engine racing setups and ideal for maintenance of youth motorsports equipment. Why Choose the NGK #6364 Spark Plug?Youth racers and quarter-midget teams know how crucial ignition reliability is. A mis-fire or weak spark can cost lap time or leave you sidelined. The NGK #6364 spark plug gives you peace of mind and the performance edge by delivering consistent ignition, efficient combustion, and dependable durability — all from a trusted name in the industry. Technical Details: Manufacturer: NGK Part Number/SKU: BKR6ES (NGK #6364) UPC: 087295163641 Designed for small-engine racing applications, youth motorsports and performance karting. Ships from U.S. stock and backed by friendly support, fast shipping and easy returns. Ideal For: Quarter-midget racing teams and hobbyists Youth motorsports racers and support crews Anyone looking to replace spark plugs in high-RPM small racing engines Athletes and teams focused on reliability, performance and consistent engine output Install & Maintenance Tips: Before installing the NGK #6364 spark plug, ensure the engine is cool and the spark-plug hole is clean. Check and set the correct spark-plug gap as specified by your engine manufacturer or racing class rules. Thread in the spark plug by hand to avoid cross-threading, then torque to the manufacturer’s specification. Use this plug as part of a regular maintenance schedule — inspect before every race day or every few sessions. Keep your ignition system clean, dry and properly grounded to maximize the life and performance of your spark plug. Why Buy From Us:We are a dedicated racing-parts supplier specializing in youth motorsports and quarter-midget equipment. We understand the demands of high-RPM small engines and deliver parts, support and service built for the track. Boost your ignition performance with the NGK #6364 spark plug — reliable, high-quality and ready to deliver on race day.