Diesel Fuel Injection Pump. Lucas Cav #EX3249F771 / DPA3249F771. Ford Engine – 256 CU/IN. For use on Ford Tractor. 5000 / 5100 / 6600 / 6700. The pump is inventory from a business that recently closed. The owners of this business have retired after 50 years of service and closed their business. Contact me with any questions. Make me an offer.