Dolly Kit for AR 42171 Water Seal & Packing RW Pumps – OEM Replacement Part
Part Number: 7430
Category: Pressure Washer Parts → Pump Parts → Seal Kits
Type: AR (Annovi Reverberi) KIT 42171 Water Seal & Packing Kit
The Dolly Kit for AR 42171 Water Seal & Packing RW Pumps (Part #7430) is a genuine OEM replacement seal kit designed to restore sealing performance and maintain reliable operation in compatible Annovi Reverberi (AR) RW series triplex plunger pumps. This kit includes 18mm water seals and packing components, helping prevent leaks, maintain operating pressure, and extend pump service life in demanding pressure washing applications.
Key Features & Benefits
- Genuine AR (Annovi Reverberi) OEM replacement kit
- Designed for AR RW series pumps
- Includes water seals and packing components
- 18mm seal size
- 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: 7430
Manufacturer: AR (Annovi Reverberi)
Manufacturer Model Number: KIT 42171
Product Description: Kit Dolly A42171 Seal Packing Ø18 (RW)
Product Type: Water Seal & Packing Kit
Seal Size: 18mm
Pump Compatibility: AR RW Series Pumps
OEM Replacement: Yes
Application: Pump Seal Maintenance and Repair
Common Applications
- AR RW 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 Pump Seals May Need Replacement
Replace the water seals and packings if you notice:
- Water leaking from the pump
- Reduced operating pressure
- Loss of pump efficiency
- Internal water bypass
- Excessive seal wear
- Visible seal damage
- Inconsistent pressure output
- 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 seal and packing components.
- Inspect plungers for scoring, wear, or damage.
- Clean seal cavities thoroughly.
- Install new OEM water seals and packings from the kit.
- Reassemble the pump according to manufacturer specifications and test operation.
Important: Always consult the AR pump service manual and verify compatibility with your specific RW pump model before installation.
Maintenance Recommendations
- Inspect seals during routine pump maintenance.
- Replace worn water seals and packings promptly.
- Maintain clean water filtration systems.
- Inspect plungers for scoring or wear during service.
- Follow manufacturer-recommended maintenance intervals.
- Monitor pump performance regularly for early signs of seal wear.
