ATP, Inc. was founded on July 1, 1955 and provides top quality products and outstanding service to its valued customers. Located in Elk Grove, Ill., a suburb of Chicago, ATP has a 70,000 sq. ft. facility that allows for quick order turn and a fill rate consistently over 98 percent. The company first supplied automatic transmission replacement parts and, over the years, has expanded its product offering to include a full line of automatic transmission filter kits, repair kits, cables, flexplates, flywheel and ring gears, cabin air filters and chemicals. In 2001, ATP Graywerks was introduced. This line consists of intake and exhaust manifolds, harmonic balancers, timing covers and engine and transmission pans.