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SKU:
ZZ3F05252
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Fuel Lift Pump 129301-52020 128270-52010 for Komatsu 3D72 3D75 3D84 Engine
$59.39
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$59.39
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$59.39
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
Fuel Lift Pump for Komatsu
This fuel lift pump provides dependable fuel delivery for Komatsu 3D72, 3D75, and 3D84 diesel engines, referencing OEM cross numbers 129301-52020 and 128270-52010.
Overview
This fuel lift pump is a mechanical pump designed to transfer fuel from the tank to the injection system of Komatsu 3D72, 3D75, and 3D84 diesel engines. It maintains consistent fuel pressure for stable idling and full-load operation. This replacement lift pump meets the dimensional and flow requirements of the original component.
Built For Performance
- Hardened steel internals for long service life in diesel applications
- Rolling diaphragm provides leak-resistant sealing
- Fuel filter screen traps debris before it reaches the injection pump
- Pre-drilled mounting holes for a straightforward bolt-on installation
- Rugged aluminum housing withstands vibration and heat
Fits These Machines
- for Komatsu 3D72
- for Komatsu 3D75
- for Komatsu 3D84
On-The-Job Use
- Replaces an original pump that has lost prime or shows visible fuel seepage
- Keeps fuel flowing during heavy loader or excavator duty cycles
- Supports cold-start priming when the engine has been sitting
- Restores fuel pressure after injector or fuel filter service
Specs At A Glance
| Part Number(s) | 129301-52020, 128270-52010 |
| Type | Mechanical diaphragm pump |
| Pump Output | Approx. 1.2 L/min at rated speed |
| Mounting | 2-bolt flange |
Good To Know
Q: What causes a lift pump to lose prime? A: A cracked diaphragm or a loose fuel line connection allows air into the system. Replacing the pump and tightening all fittings restores prime.
Q: Is this pump compatible with biodiesel blends? A: Yes, the diaphragm and seals are compatible with standard diesel and biodiesel blends up to B20. Always check fuel quality if you suspect a problem.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.