Description
The Comet AXD3025G is a high-performance axial triplex pump designed for direct-drive attachment to small gasoline engines (typically 5 HP to 7 HP). It is a popular choice for light-duty commercial pressure washers due to its compact design and reliable 2500 PSI output.
Technical Specifications
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Flow Rate: 3.0 GPM (11.4 LPM)
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Max Pressure: 2500 PSI (172 bar)
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Speed: 3400 RPM (Standard Gas Engine Speed)
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Shaft Size: 3/4″ Hollow Shaft
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Flange: Standard SAE J609A (4-bolt gas engine mounting)
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Inlet Port: 3/4″ GHF (Garden Hose Female)
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Discharge Port: 22mm x 1.4 Twist-Connect (M22)
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Built-in Unloader: Integrated into the manifold head for space-saving.
Key Features
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Forged Brass Manifold: Unlike cheaper aluminum pumps, the AXD uses brass to better handle the heat and pressure of extended use.
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Stainless Steel Plungers: Highly resistant to corrosion and wear.
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Detergent Injector: Includes a low-pressure chemical injector for applying soaps.
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Maintenance-Free: These pumps are generally “lubricated for life,” meaning they do not require oil changes, though some versions may include an oil vent cap for thermal expansion.
Essential Service Kits
If your AXD3025G is leaking or losing pressure, these are the primary repair kits:
| Kit Description | Part Number | Purpose |
| Valve Kit | 5025.0014.00 | Replaces all 6 check valves if pressure is erratic. |
| Water Seal Kit | 5019.0644.00 | Fixes water leaks between the manifold and body. |
| Unloader Rebuild Kit | 1215.0403.00 | Fixes issues with pressure regulation/bypass. |
| Easy Start Valve | 1215.0538.00 | Fixes “hard to pull” engine starting issues. |




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