This listing is for a rebuilt Simms Minimec injection pump P4784-6A. This injection pump fits the early 9600 and all 9000 turbocharged Ford tractors. This pump will work on 8000 and early 8600 as well but let us know it is a naturally asirated engine. The pump number on the naturally aspirated engine should be P4784-6. Rebuilt by Wimer Fuel Injection & Turbo LLC.