1. ENGINES 2. FORD 3. M SERIES 4. (M821) - 6.6L 166HP TURBO DIESEL ENGINE WITH "A" PUMP (5/91-6/96) Section (M821) - 6.6L 166HP TURBO DIESEL ENGINE WITH "A" PUMP (5/91-6/96) New Holland: (01) - ENGINE (02) - FUEL SYSTEM (04) - COOLING SYSTEM parts diagram catalog sale online construction equipment excavator tractor