Fuel Lift Pump 129301-52020 128270-52010 for Yanmar Komatsu Marine Engine

Fuel Lift Pump for Yanmar Komatsu

This fuel lift pump, cross-referencing part numbers 129301-52020 and 128270-52010, provides essential fuel delivery for Yanmar and Komatsu diesel engines. It mechanically pumps fuel from the tank to the injection system, ensuring reliable engine start-up and steady operation. This pump is a robust replacement component designed for continuous duty in marine and industrial applications.

Overview

This fuel lift pump is a mechanical diaphragm pump designed to feed diesel fuel from the tank to the fuel injection pump on compatible Yanmar marine and Komatsu industrial engines. It replaces OEM part numbers 129301-52020 and 128270-52010, ensuring a precise fit and dependable function. The pump's sturdy construction delivers consistent fuel pressure, which is vital for efficient combustion and long engine life.

Built For Performance

• Mechanical actuation eliminates the need for electrical wiring, simplifying installation and reducing potential failure points.
• High-grade diaphragm material resists diesel fuel degradation and maintains a strong prime.
• Cast housing provides structural rigidity and resistance to vibration in demanding environments.
• Precision inlet and outlet valves ensure one-way fuel flow and prevent backflow.
• Cross-compatible with both 129301-52020 and 128270-52010, offering flexible application coverage.

Fits These Machines

• for Yanmar Marine Engines (e.g., 2GM20, 3GM30 series)
• for Komatsu Industrial Diesel Engines using the 128270-52010 reference
• for Yanmar Industrial Engines using the 129301-52020 reference

On-The-Job Use

• Maintains fuel supply in marine auxiliary engines, ensuring reliable operation during long voyages.
• Supports fuel delivery on construction equipment powered by Komatsu diesel engines.
• Used in agricultural machinery and generators where consistent fuel pressure is required.
• Facilitates easier engine priming after fuel filter changes or maintenance work.

Specs At A Glance

Good To Know

Q: Can this pump be used as a direct replacement for either part number? A: Yes, it is designed to be a direct replacement for both the 129301-52020 and 128270-52010 OEM pumps, matching their mounting and flow specifications. Always verify the port orientation and bolt pattern against your original pump before installation.

Q: What maintenance does this lift pump require? A: This pump is essentially maintenance-free, but periodic inspection for leaks and ensuring the fuel supply is clean will extend its service life. If the engine runs dry or surges, the diaphragm or check valves may need replacement.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.