Dolly Kit for GP Kit 123 Check Valves – OEM Replacement Part
Part Number: 7457
Category: Pressure Washer Parts → Pump Parts → Check Valves & Repair Kits
Type: General Pump KIT 123 Check Valve Kit
The Dolly Kit for GP Kit 123 Check Valves (Part #7457) is a genuine OEM replacement service kit designed to restore proper valve operation and maintain peak performance in compatible General Pump triplex plunger pumps. This kit includes replacement check valves and O-rings (2x6 pieces) required for servicing worn, damaged, or leaking valve assemblies, helping maintain consistent pressure, proper water flow, and efficient pump operation.
Key Features & Benefits
- Genuine General Pump OEM replacement kit
- Includes replacement check valves and O-rings
- Kit contains valve and seal components (2x6 pieces)
- Helps restore proper valve operation
- Maintains consistent pressure and flow
- Reduces internal leakage and pressure loss
- Supports efficient pump performance
- OEM-quality materials and construction
- Ideal for preventative maintenance and repairs
- Direct replacement design
- Helps extend pump service life
Technical Specifications
Part Number: 7457
Manufacturer: General Pump
Manufacturer Model Number: KIT 123
Product Description: Kit Dolly 123 Valves + O-Rings (2x6 pc)
Product Type: Check Valve Service Kit
Kit Contents: Check Valves and O-Rings
Pump Compatibility: Compatible General Pump Triplex Plunger Pumps
OEM Replacement: Yes
Application: Check Valve Maintenance and Pump Repair
Common Applications
- Pressure washer pumps
- General Pump triplex plunger pumps
- Commercial pressure washing equipment
- Industrial cleaning systems
- Agricultural spraying equipment
- Fleet washing equipment
- Water transfer systems
- Pump rebuild and maintenance services
Performance Benefits
- Restores proper check valve function
- Helps maintain operating pressure
- Improves water flow efficiency
- Reduces internal bypass and leakage
- Supports smooth pump operation
- Improves pump reliability and longevity
- Maintains consistent cleaning performance
- Extends pump service life
Signs Check Valves May Need Replacement
Replace the check valves if you notice:
- Loss of operating pressure
- Pulsating pressure output
- Reduced flow rate
- Internal water leakage
- Difficulty maintaining pressure
- Excessive valve wear
- Damaged O-rings or seals
- Inconsistent pump performance
Installation Notes
- Shut down the pressure washer and relieve all system pressure.
- Disconnect power and water supply.
- Remove valve caps according to manufacturer service procedures.
- Remove worn check valves and O-rings.
- Clean valve chambers thoroughly.
- Install new OEM components from the kit.
- Reassemble the pump and torque components to specification.
- Test operation and verify proper pressure and flow.
Important: Always consult the appropriate General Pump service manual and verify compatibility before installation.
Maintenance Recommendations
- Inspect check valves during routine pump maintenance.
- Replace worn O-rings and seals promptly.
- Maintain proper inlet filtration.
- Use clean water sources whenever possible.
- Follow manufacturer-recommended maintenance schedules.
- Address pressure fluctuations immediately to prevent further pump wear.
