Professional Triplex Pump for Heavy Duty Gas Pressure Washers
The Comet LWD3025G Pump Assembly (Bare Pump Part #85.140.004) is a professional triplex direct-drive gas pump built for performance and longevity. Up to 3,100 PSI at 3.1 GPM this pump is designed for gas powered pressure washers used in residential, commercial and light industrial applications.
Backed by Comet’s 5 year warranty the LWD3025G has ceramic plungers, brass manifold and external unloader for maximum durability, serviceability and reliability. Whether replacing a worn out pump or upgrading your system this pump has the strength and efficiency you need to get the job done.
Features
Bare Pump Part #: 85.140.004
Pump Manufacturer: Comet
Pump Model: LWD3025G
Pump Style: Triplex, direct-drive gas
Max PSI: 3,100
Max GPM: 3.1
Shaft Size: 3/4"
Unloader Type: External (85.300.003)
Plunger (Piston): Ceramic for maximum wear resistance
Inlet Size: 3/4" GHF (garden hose fitting)
Discharge Size: 3/8" Brass QC (85.300.103)
Soap Injector: Adjustable (85.400.000)
Manifold Type: Brass for strength and corrosion resistance
RPM: 3,450
Max Inlet Temp: 60°C / 140°F
Thermal Relief Valve: 85.300.024 included
Oil Capacity: 11 oz
Oil Type: 30W non-detergent oil
Weight: 13 lbs
Warranty: 5 Years
Built to Last
The Comet LWD3025G has a triplex plunger design, a professional standard that provides smoother performance, less vibration and longer life than axial cam pumps. This design ensures high pressure water is delivered consistently even under heavy use.
With an output of 3,100 PSI at 3.1 GPM this pump has the perfect balance of pressure and flow. The higher flow rate allows for faster coverage on larger surfaces, the higher pressure rating for effective dirt, stain and grime removal.
The ceramic plungers withstand heat and abrasion, the brass manifold strength, corrosion resistance and long term reliability. Together these components are durable in residential, commercial and light industrial environments.
Built In Flexibility and Convenience
The external unloader (85.300.003) provides flexibility and ease of service, pressure regulation outside the pump body. This allows you to adjust system pressure, replace the unloader if needed or fine tune for specific tasks.
The adjustable soap injector (85.400.000) gives the operator precise control over detergent application. By switching to a low pressure nozzle you can draw cleaning chemicals into the water stream and adjust detergent flow as needed for optimal cleaning results.
The brass quick-connect discharge fitting (3/8”) ensures secure and reliable hose connections, reduces leaks and minimizes setup time.
Protection and Easy Maintenance
To protect against overheating during extended bypass operation the LWD3025G comes with a thermal relief valve (85.300.024). This valve automatically purges overheated water and replaces it with cooler water to safeguard seals and internal components.
The pump requires 11 oz of 30W non-detergent oil, which lubricates moving parts and reduces wear. Routine checks and oil changes are easy to do and essential for maximum life.
With a maximum inlet temperature of 140°F (60°C) this pump can handle warmer water supplies than many consumer grade pumps, added flexibility in different operating environments.
At 13 lbs the LWD3025G is rugged yet manageable for installation, built with professional grade weight and materials.
Applications
The Comet LWD3025G is versatile enough to support a wide range of cleaning applications for homeowners, contractors and facility managers. Its high PSI and flow makes it suitable for:* Driveways, Patios and Sidewalks – Oil stains, dirt and mildew.
Decks, Fences and Siding – Wood, vinyl and composite surfaces.
Fleet and Vehicle Washing – Cars, trucks, trailers and boats.
Construction Equipment – Caked on mud, dust and grease.
Agricultural Tools and Machinery – Tractors, implements and farm equipment.
Large Property Maintenance – Big areas fast.
Its 3/4” shaft size makes it compatible with many gas powered engines, a replacement pump for high performance pressure washers.
Product Details
Manufacturer: Comet
Model: LWD3025G
Style: Triplex, direct-drive gas
Max Pressure: 3,100 PSI
Max Flow Rate: 3.1 GPM
Shaft Size: 3/4”
RPM: 3,450
Unloader: External (85.300.003)
Soap Injector: Adjustable (85.400.000)
Manifold Material: Brass
Plunger Material: Ceramic
Inlet Connection: 3/4” GHF
Discharge Connection: Brass QC 3/8" (85.300.103)
Oil Capacity: 11 oz (30W non-detergent oil)
Thermal Relief Valve: 85.300.024
Max Inlet Temp: 60°C / 140°F
Weight: 13 lbs
Warranty: 5 Years
Comet Quality
With decades of engineering experience Comet Pumps are trusted worldwide for durability, innovation and reliability. The LWD3025G Pump Assembly continues this tradition with triplex plunger design, brass manifold, ceramic plungers and external unloader in a package that can handle tough jobs.
Backed by a 5 year warranty the LWD3025G is a great long term value and peace of mind. Whether you’re a homeowner upgrading your machine or a professional looking for reliable performance this pump delivers.
