Interstate Diesel began operations in 1947 rebuilding Detroit Diesel injectors. During the 1950’s the company started manufacturing fuel injection components. Working with OEM’s .During the 1970’s, McBee Supply was formed to service the aftermarket with replacement parts for Cummins Engines. As McBee Supply grew, so did its coverage of replacement parts for Caterpillar, Navistar, Detroit Diesel, and Komatsu engines. Since the early 90’s, Interstate Diesel has designed and patented a number of new fuel injection components including the industry leading “ECOTIP“ technology. This has been proven to save fuel and reduce smoke on EMD engines

 

 

Since established in 1931, Nippon Piston Ring Co., Ltd is the first piston ring manufacturer in Japan.

Today NPR is the Original Equipment Manufacturer (OEM), supplying Piston Rings and Pistons to many Japanese internal combustion engine manufacturers such as Hino, Isuzu, Mitsubishi, Nissan UD and many more.

Even since the Gardner has since production since 1990s, many users still continue to use and overhaul the engines due to its highly efficiency and endurance.

KNH continues to supply a range of spare parts for Gardner including piston rings, piston, nozzle and tips and many more.