David Brown 995, 990, 996 Fuel Injection Pump K921356, 3248F820, CAV CAV3249F500. Description for the Item. Fuel Injection Pump Removed From: David Brown 995 Removed from working engine. Part Number: K921356 CAV 3249F500. Tractor & Plant Breaker. With Over 250 Tractors & Plant for breaking. Many parts available second hand for Ford, New Holland, John …