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Dolly Kit for Comet 5025.0020.00 Valve TW Series Pumps – OEM Replacement Part

by Comet
Original price $80.00 - Original price $80.00
Original price
$80.00
$80.00 - $80.00
Current price $80.00

Part Number: 7445
Category: Pressure Washer Parts → Pump Parts → Check Valves & Repair Kits
Type: Comet Pumps 5025.0020.00 Valve Kit


The Dolly Kit for Comet 5025.0020.00 Valve TW Series Pumps (Part #7445) is a genuine OEM replacement valve service kit designed to restore proper flow control and maintain peak performance in compatible Comet TW Series triplex plunger pumps. This kit includes replacement valves and O-rings (7x6 pieces) required for servicing worn, damaged, or contaminated valve assemblies, helping maintain consistent operating pressure, improve flow efficiency, and extend pump service life.


Key Features & Benefits

  • Genuine Comet Pumps OEM replacement kit
  • Designed for Comet TW Series pumps
  • Includes replacement valves and O-rings
  • Kit contains valve and sealing components (7x6 pieces)
  • Helps restore proper valve operation
  • Maintains operating pressure and flow
  • Reduces internal leakage and pressure loss
  • Supports efficient pump performance
  • OEM-quality materials and construction
  • Ideal for preventative maintenance and pump rebuilds
  • Direct replacement design
  • Helps extend pump service life

Technical Specifications

Part Number: 7445

Manufacturer: Comet Pumps

Manufacturer Model Number: 5025.0020.00

Product Description: Kit Dolly Com20 Valves with O-Rings (7x6 pc)

Product Type: Valve & O-Ring Service Kit

Kit Contents: Valves and O-Rings

Quantity: Valve and Seal Components (7x6 Pieces)

Pump Compatibility: Comet TW Series Pumps

OEM Replacement: Yes

Application: Pump Valve Maintenance and Repair


Common Applications

  • Comet TW 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 valve operation
  • Helps maintain consistent operating pressure
  • Improves water flow efficiency
  • Reduces internal bypass and leakage
  • Supports smooth pump performance
  • Improves pump reliability and longevity
  • Maintains consistent cleaning performance
  • Extends pump service life

Signs Pump Valves May Need Replacement

Replace the valves and O-rings 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 sealing components
  • Inconsistent pump performance

Installation Notes

  1. Shut down the pressure washer and relieve all system pressure.
  2. Disconnect power and water supply.
  3. Remove valve caps according to Comet service procedures.
  4. Remove worn valve and O-ring components.
  5. Clean valve chambers thoroughly.
  6. Install new OEM valves and O-rings from the kit.
  7. Reassemble the pump according to manufacturer specifications.
  8. Test operation and verify proper pressure and flow performance.

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


Maintenance Recommendations

  • Inspect valves during routine pump maintenance.
  • Replace worn valves and O-rings promptly.
  • Maintain proper inlet filtration.
  • Use clean water sources whenever possible.
  • Follow manufacturer-recommended maintenance schedules.
  • Address pressure fluctuations immediately to prevent additional pump wear.

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