ARP (Automotive Racing Products) is the leading manufacturer of engine bolts of all kinds. ARP uses a metal mixture of iron, carbon, chromium and molybdenum in a special mixing ratio. So-called chrome molybdenum steel with the number 8740 is now well-known throughout the world. The particularly high tensile strength of this material makes for high-strength bolts and threaded bolts that withstand incredible tensile forces. With a value of 13.8 t/cm², this steel alloy is approximately twice as stable as the best standard bolts and threaded bolts offered by factory suppliers.
Total Seal® pioneered Gapless® technology over 50 years ago. Our Gapless® piston ring design provides consistent performance that doesn’t fade with opening end gaps. They are used for all aspects of Motorsports, Diesel, Industrial, Compressors and Aviation. More information on Total Seal website.
With advance in automobile technology, higher quality/performance has been required for automobile component parts. NPR products are used in all kind of engines with high quality backed up by proven technology and abundant lineup. NPR products, piston rings and valve seat inserts, are adopted by major automobile manufacturers not only in Japan but also overseas