Dolly Kit for AR 2782 Water Seal 20mm XW & XWA Pumps – OEM Replacement Part
Part Number: 7428
Category: Pressure Washer Parts → Pump Parts → Seal Kits
Type: AR (Annovi Reverberi) KIT 2782 Water Seal Packing Kit
The Dolly Kit for AR 2782 Water Seal 20mm XW & XWA Pumps (Part #7428) is a genuine OEM replacement water seal and packing kit designed to restore sealing performance and maintain reliable operation in compatible Annovi Reverberi (AR) XW and XWA series triplex plunger pumps. This kit includes 20mm water seal and packing components (5x3 pieces) required for servicing worn seals, preventing leaks, maintaining operating pressure, and extending pump service life.
Key Features & Benefits
- Genuine AR (Annovi Reverberi) OEM replacement kit
- Designed for AR XW and XWA series pumps
- Includes 20mm water seal and packing components
- Kit contains seal packing components (5x3 pieces)
- Helps restore pump sealing performance
- Reduces internal and external leakage
- Maintains operating pressure and flow
- Supports efficient pump operation
- OEM-quality materials and construction
- Ideal for preventative maintenance and rebuilds
- Direct replacement design
- Helps extend pump service life
Technical Specifications
Part Number: 7428
Manufacturer: AR (Annovi Reverberi)
Manufacturer Model Number: KIT 2782
Product Description: Kit Dolly A2782 Seal Packing Ø20 (XW) (5x3 pc)
Product Type: Water Seal & Packing Kit
Seal Size: 20mm
Kit Contents: Water Seal and Packing Components (5x3 Pieces)
Pump Compatibility:
- AR XW Series Pumps
- AR XWA Series Pumps
OEM Replacement: Yes
Application: Pump Seal Maintenance and Repair
Common Applications
- AR XW pressure washer pumps
- AR XWA pressure washer pumps
- Commercial pressure washing equipment
- Industrial cleaning systems
- Agricultural spraying equipment
- Fleet washing systems
- Water transfer equipment
- Wash-down systems
- Pump rebuild and maintenance services
Performance Benefits
- Restores proper sealing performance
- Helps maintain pump pressure output
- Reduces water bypass and leakage
- Supports efficient pump operation
- Improves pump reliability and longevity
- Helps prevent premature pump wear
- Maintains consistent cleaning performance
- Extends pump service life
Signs Water Seals May Need Replacement
Replace the water seals and packing components if you notice:
- Water leaking from the pump
- Reduced operating pressure
- Internal water bypass
- Excessive seal wear
- Visible seal damage
- Inconsistent pressure output
- Loss of pump efficiency
- Increased maintenance requirements
Installation Notes
- Shut down equipment and relieve all system pressure.
- Disconnect power and water supply.
- Disassemble the pump according to AR service procedures.
- Remove worn water seals and packing components.
- Inspect plungers for scoring, wear, or damage.
- Clean seal cavities thoroughly.
- Install new OEM seal components from the kit.
- Reassemble the pump and verify proper operation.
Important: Always consult the AR pump service manual and verify compatibility with your specific XW or XWA pump model before installation.
Maintenance Recommendations
- Inspect water seals during routine pump maintenance.
- Replace worn seals promptly.
- Maintain clean inlet water filtration systems.
- Inspect plungers for wear during service.
- Follow manufacturer-recommended maintenance intervals.
- Monitor pump performance regularly for signs of seal deterioration.
