Part Number: 7443
Category: Pressure Washer Parts Pump Parts Seal Kits
Type: Comet Pumps 5019.0064.00 Piston Seal Kit

The Dolly Kit for Comet 5019.0064.00 Piston Seal ZW 15mm (Part #7443) is a genuine OEM replacement seal packing kit designed to restore sealing performance and maintain reliable operation in compatible Comet ZW Series triplex plunger pumps. This kit includes 15mm piston seal and packing components (5×3 pieces) required for servicing worn seals, preventing leaks, maintaining operating pressure, and extending pump service life.

Key Features & Benefits

• Genuine Comet Pumps OEM replacement kit
• Designed for Comet ZW Series pumps
• Includes 15mm piston seal and packing components
• Kit contains seal packing components (5×3 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: 7443

Manufacturer: Comet Pumps

Manufacturer Model Number: 5019.0064.00

Product Description: Kit Dolly Com41 Seal Packing 15 (5×3 pc)

Product Type: Piston Seal & Packing Kit

Seal Size: 15mm

Kit Contents: Seal Packing Components (5×3 Pieces)

Pump Compatibility: Comet ZW Series Pumps

OEM Replacement: Yes

Application: Pump Seal Maintenance and Repair

Common Applications

• Comet ZW Series 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 Piston Seals May Need Replacement

Replace the piston seals 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

1. Shut down equipment and relieve all system pressure.
2. Disconnect power and water supply.
3. Disassemble the pump according to Comet service procedures.
4. Remove worn seals and inspect plungers for wear or damage.
5. Clean seal cavities thoroughly.
6. Install new OEM seal components from the kit.
7. Reassemble the pump according to manufacturer specifications.
8. Test operation and verify proper pressure and leak-free performance.

Important: Always consult the Comet Pumps service manual and verify compatibility with your specific ZW Series pump model before installation.

Maintenance Recommendations

• Inspect piston seals during routine pump maintenance.
• Replace worn seals promptly.
• Maintain clean water filtration systems.
• Inspect ceramic plungers for scoring or wear during service.
• Follow manufacturer-recommended maintenance intervals.
• Monitor pump performance regularly for early signs of seal wear.