ISUZU FORWARD HITACHI EXCAVATOR EX200 6BD1 6BD1T 6BG1 4BD1 HEAVY DUTY DIESEL FUEL FEED AC PUMP MECHANICAL LIFT PUMP (105220-1590-1 / 105220-1590 / 1052201590 / 8-94132-704-0)

Overview

The Isuzu 6BD1 & Hitachi EX200 Excavator Diesel Fuel Feed AC Pump (Mechanical Lift / Transfer Feed Pump 105220-1590-1) is a heavy-duty fuel supply component engineered for Hitachi EX200 series excavators, heavy earthmoving equipment, and Isuzu commercial trucks powered by Isuzu 6BD1, 6BD1-T, 6BG1, 6BG1-T, and 4BD1 diesel engines equipped with Diesel Kiki / Zexel / Bosch inline injection pumps. Operating as a camshaft-driven mechanical lift pump mounted directly to the side of the inline fuel injection pump, its internal roller tappet follower draws diesel from the fuel tank under constant positive low pressure and delivers it through the primary and secondary fuel filters into the high-pressure gallery. Replacing a worn or fatigued AC feed pump cures hard cold morning starts, prevents air ingestion into the diesel supply line, and eliminates low-pressure fuel starvation, engine bogging down, and power loss under heavy hydraulic digging or haulage loads.

Engineered to heavy commercial fleet and industrial equipment specifications for dependable workshop replacement, fuel system overhaul, and engine maintenance.

Key Dimensions (As Labeled in Product Photos)

• Mounting Configuration: Standard heavy-duty flange mounting

• Actuation Mechanism: Precision-machined roller tappet / cam follower

• Fuel Ports: Standard threaded inlet and outlet ports (for banjo bolt fuel line fittings)

• Primer Port: Compatible with standard screw-in / plunger hand primer units

• Measurement Notice: Key specifications including mounting hole center-to-center pitch, roller plunger protrusion height, spigot collar diameter, and fuel port thread sizes are labeled directly in the product photos.

• Please verify your existing pump mounting pattern and roller dimensions against the measurements shown in our photos before ordering.

Compatible Truck Models & Heavy Machinery Applications

• HITACHI EXCAVATORS: EX200, EX200-1, EX200-2, EX200-3, EX200-5, EX120, EX150, EX220 Heavy Crawler Excavators & Industrial Earthmoving Machinery

• ISUZU TRUCKS: Forward Commercial Trucks (FTR, FSR, FVR, JCR Series Cargo Lorries, Tippers & Heavy Haulers)

• Engine Application:

  • Isuzu 6BD1 / 6BD1-T (5.8L 6-Cylinder Turbo Diesel)

  • Isuzu 6BG1 / 6BG1-T (6.5L 6-Cylinder Turbo Diesel)

  • Isuzu 4BD1 / 4BD1-T (3.9L 4-Cylinder Diesel)

  • Compatible with select industrial generator sets and heavy machinery utilizing Zexel / Diesel Kiki PE / FP inline injection fuel systems

• OEM & Cross-Reference Part Numbers:

  • 105220-1590-1 / 105220-1590 / 10522015901 / 1052201590 (Zexel / Diesel Kiki)

  • 105220-1570 / 1052201570 / 105220-4772 / 1052204772

  • 8-94132-704-0 / 8941327040 / 1-15750-130-0 / 1157501300 (Isuzu / Hitachi)

  • 9 440 610 008 / 9440610008 (Bosch)

• (Note: Specifications may vary depending on the injection pump governor housing and machine build year. Please verify OEM numbers and sample dimensions prior to ordering.)

Why Choose Our Commercial Truck Parts?

• Precision Roller Cam Follower: Heat-treated, wear-resistant roller ensures smooth tracking against the injection pump camshaft, delivering consistent stroke volume with zero cam lobe galling.

• Positive Air-Tight Check Valves: High-precision spring-loaded internal valves prevent fuel drain-back to the tank overnight, ensuring instant morning engine fire-up.

• Rugged Heavy-Duty Housing: Precision-cast metal body resists severe engine vibrations, high under-hood temperatures, and continuous fuel line pressure pulses.

• Ready Stock & Fast Shipping: Readily stocked for quick dispatch across Peninsular and East Malaysia.

Need Help Confirming Fitment?

Unsure whether this AC feed pump matches your excavator or lorry's existing injection pump?

• Check your old pump against the measurements shown in our pictures.

• Or send your Chassis Number (VIN) / Engine Serial / Excavator Model / sample photos to our team via WhatsApp for instant confirmation!