VRT3-310EZ Unloader Made Ready Kit for Pumps Up to 4500 PSI – OEM Replacement Part
Part Number: 6174
Category: Pressure Washer Parts → Unloader Valves → Unloader Kits
Type: VRT3-310EZ Unloader Made Ready Kit
The VRT3-310EZ Unloader Made Ready Kit (Part #6174) is a professional-grade OEM replacement unloader assembly designed to simplify the installation of a high-performance pressure washer unloader on pumps rated up to 4,500 PSI. Built around the proven VRT3-310EZ unloader design, this ready-to-install kit helps regulate system pressure, protect pumps from damaging pressure spikes, and improve overall pressure washer performance.
Key Features & Benefits
- OEM replacement VRT3-310EZ unloader kit
- Ready-to-install pressure washer unloader assembly
- Rated for pumps up to 4,500 PSI
- Supports flow rates up to 7.8 GPM
- Automatically diverts water into bypass mode
- Helps prevent damaging pressure spikes
- Protects pumps and plumbing components
- Simplifies pressure washer installation and repairs
- Commercial-duty construction
- Suitable for hot and cold water pressure washers
- Reliable pressure regulation
- Ideal for custom pressure washer builds and upgrades
Technical Specifications
Part Number: 6174
Model: VRT3-310EZ
Product Type: Unloader Made Ready Kit
Maximum Pressure: 4,500 PSI
Maximum Flow Rate: 7.8 GPM
Inlet Connection: 1/2" Female
Outlet Connection: 3/8" Female
OEM Replacement: Yes
What an Unloader Valve Does
The VRT3-310EZ unloader is designed to:
- Regulate operating pressure
- Divert water flow during trigger release
- Protect pumps from excessive pressure buildup
- Reduce wear on seals, hoses, and fittings
- Improve equipment reliability
- Extend pressure washer service life
When the spray gun is released, water is redirected through the bypass circuit until spraying resumes.
Common Applications
Commercial Pressure Washing
Ideal for:
- Professional pressure washers
- Mobile wash trailers
- Fleet washing equipment
- Property maintenance systems
- Contractor cleaning rigs
Industrial Cleaning
- Equipment washing
- Manufacturing facilities
- Heavy machinery cleaning
- Industrial maintenance operations
Custom Pressure Washer Builds
- Pump upgrades
- Pressure washer rebuilds
- Replacement unloader installations
- Skid-mounted systems
Performance Benefits
- Reliable pressure regulation
- Improved pump protection
- Reduced component wear
- Consistent cleaning performance
- Simplified installation
- Long service life
- Professional-grade durability
- Enhanced system reliability
Signs an Unloader Kit Needs Replacement
Replace the unloader assembly if you notice:
- Pressure fluctuations
- Loss of operating pressure
- Water bypass issues
- Pump cycling problems
- Difficulty adjusting pressure
- External leakage
- Reduced cleaning performance
- Excessive wear or corrosion
Installation Notes
- Shut off power and relieve system pressure.
- Verify compatibility with pump flow and pressure ratings.
- Install using the proper plumbing connections.
- Apply thread sealant where required.
- Adjust pressure settings according to manufacturer recommendations.
- Verify bypass operation before use.
- Test for leaks and proper pressure regulation.
Important: Always ensure the unloader is properly adjusted and matched to the pump's flow rate and pressure output to maintain safe operation and maximize equipment life.
Maintenance Recommendations
- Inspect the unloader regularly for leaks and wear.
- Verify pressure settings during routine service.
- Maintain proper water filtration.
- Monitor bypass performance.
- Replace worn seals and internal components as necessary.
- Follow recommended maintenance intervals.
