The Kawasaki P-2J (originally P2V-Kai) was developed for the Japan Maritime Self Defense Force (JMSDF). A turboprop-powered version of the radial-engined P-2V Neptune, the P-2J was developed as an alternative to the four engine Lockheed P-3 Orion, which eventually replaced the P-2J in the 1980s.
A total of 82 P-2J's were produced.