Dolly Kit for GP 51040009 Ceramic Piston 15mm – OEM Replacement Part
Part Number: 7469
Category: Pressure Washer Parts → Pump Parts → Ceramic Pistons & Plungers
Type: General Pump Ceramic Piston Plunger Set
The Dolly Kit for GP 51040009 Ceramic Piston 15mm (Part #7469) is a genuine OEM replacement ceramic plunger set designed to restore performance and reliability in compatible General Pump triplex plunger pumps. This kit includes three ceramic plungers measuring 15mm x 25mm x 9mm, providing a complete replacement solution for servicing worn or damaged piston assemblies.
Key Features & Benefits
- Genuine General Pump OEM replacement kit
- Includes three ceramic plungers
- Precision-manufactured ceramic construction
- Plunger dimensions: 15mm x 25mm x 9mm
- Excellent wear and abrasion resistance
- Helps restore pump performance
- Maintains consistent operating pressure
- Reduces premature seal wear
- OEM-quality fit and performance
- Ideal for pump rebuilds and maintenance
- Long service life and dependable operation
Technical Specifications
Part Number: 7469
Manufacturer: General Pump
Manufacturer Model Number: 51040009 (Single Plunger Reference)
Product Description: Set Dolly i6 Ceramic Plungers Ø15 x 25 x 9 (3 pc)
Product Type: Ceramic Piston / Plunger Kit
Plunger Diameter: 15mm
Plunger Dimensions: 15mm x 25mm x 9mm
Quantity: 3 Plungers
Material: Ceramic
Pump Compatibility: Compatible General Pump Triplex Plunger Pumps
OEM Replacement: Yes
Application: Pump Rebuild and Maintenance
Common Applications
- Pressure washer pumps
- General Pump triplex plunger pumps
- Commercial pressure washing equipment
- Industrial cleaning systems
- Agricultural spraying equipment
- Fleet washing systems
- Water transfer equipment
- Pump rebuild and repair services
Performance Benefits
- Restores proper pump operation
- Maintains consistent pressure output
- Reduces seal wear and leakage
- Improves pump efficiency
- Provides superior wear resistance
- Supports reliable long-term operation
- Helps extend pump service life
- Maintains consistent cleaning performance
Signs Ceramic Plungers May Need Replacement
Replace ceramic plungers if you notice:
- Cracked or chipped plungers
- Excessive seal wear
- Reduced operating pressure
- Water leakage around seals
- Visible scoring or surface damage
- Pump performance loss
- Increased maintenance requirements
- Damage discovered during pump servicing
Installation Notes
- Shut down equipment and relieve all system pressure.
- Disconnect power and water supply.
- Remove the pump manifold according to manufacturer procedures.
- Inspect existing plungers and seals for wear or damage.
- Remove worn ceramic plungers carefully.
- Install the replacement plungers according to OEM specifications.
- Inspect and replace seals if necessary.
- Reassemble the pump and test operation.
Important: Always verify compatibility with your specific General Pump model and inspect seals and packing assemblies during plunger replacement.
Maintenance Recommendations
- Inspect plungers during routine pump maintenance.
- Replace damaged plungers promptly.
- Maintain clean inlet water filtration.
- Inspect seals whenever plungers are serviced.
- Follow manufacturer-recommended maintenance intervals.
- Monitor pump performance for early signs of wear.
