Part Number: 2409.0092.00
Category: Pressure Washer Parts → Pump Repair Kits → Ceramic Piston Kits
Type: Comet 2409.0092.00 14mm Ceramic Piston Kit – OEM Replacement for AXD Series Pressure Washer Pumps

The Comet 2409.0092.00 Ceramic Piston Kit (Part #2409.0092.00) is a genuine OEM replacement repair kit designed for servicing compatible Comet AXD Series pressure washer pumps rated up to 2,900 PSI. This complete repair kit includes three precision 14 mm ceramic pistons and the necessary mounting hardware to restore proper pump performance, maintain operating pressure, and extend the service life of your pressure washer pump. 

Key Features & Benefits

• Genuine Comet OEM ceramic piston kit
• Part Number: 2409.0092.00
• Designed for Comet AXD Series pressure washer pumps
• Compatible with AXD pumps rated up to 2,900 PSI
• Includes three precision 14 mm ceramic pistons
• Includes mounting hardware for complete installation
• Restores operating pressure and pump efficiency
• Highly wear-resistant ceramic construction
• Helps reduce wear on seals and packings
• Ideal for pump rebuilds and preventive maintenance
• OEM-quality fit and long service life

Kit Contents

The Comet 2409.0092.00 Piston Kit includes:

• (3) 14 mm Ceramic Pistons
• Mounting Nuts
• Mounting Washers

All components are genuine OEM Comet replacement parts.

Technical Specifications

Part Number: 2409.0092.00

Product Type: Ceramic Piston Kit

Manufacturer: Comet Pumps

Piston Diameter: 14 mm

Quantity: 3 Pistons

Compatible Pump Series: AXD

Maximum Pump Pressure: Up to 2,900 PSI

OEM Replacement: Yes

Compatible Pump Models

Designed for compatible Comet AXD Series pressure washer pumps rated up to 2,900 PSI, including models such as:

• AXD2020E
• AXD2520E
• AXD2527G
• AXD2527G-T

Always verify your pump model, operating pressure, and piston diameter before ordering. Models rated at 3,000 PSI or higher typically require Comet Part #2409.0103.00 instead.

Function of the Ceramic Piston Kit

The ceramic piston kit helps:

• Restore proper piston movement
• Maintain operating pressure
• Improve pump efficiency
• Reduce internal water leakage
• Protect packings and water seals
• Extend pressure washer pump service life

Replacing worn ceramic pistons helps restore pressure washer performance while protecting additional internal pump components from premature wear.

Common Signs Replacement Is Needed

Replace the ceramic piston kit if you notice:

• Reduced operating pressure
• Water leakage around the plungers
• Chipped or cracked ceramic pistons
• Scored or worn piston surfaces
• Pump rebuild or scheduled preventive maintenance
• Reduced cleaning performance

Replacing damaged pistons promptly helps prevent premature wear to packings, water seals, and the pump manifold.

Installation & Service Notes

• Shut down the pressure washer and relieve all system pressure.
• Remove the pump manifold according to the manufacturer's service procedures.
• Carefully remove the existing ceramic pistons and mounting hardware.
• Inspect the piston rods, packings, water seals, and manifold for wear or damage.
• Clean all sealing surfaces thoroughly.
• Install the new OEM ceramic pistons using the supplied mounting hardware.
• Reassemble the pump and verify proper pressure and leak-free operation.

Important: Inspect water seals, packings, O-rings, and check valves during service. Replacing related wear components at the same time helps maximize pump reliability and long-term performance.

Maintenance Recommendations

• Inspect ceramic pistons during routine pump maintenance.
• Replace damaged or worn pistons immediately.
• Maintain clean, filtered inlet water to minimize abrasive wear.
• Never operate the pump without an adequate water supply.
• Use only genuine OEM Comet replacement parts to maintain optimum pump performance, reliability, and long service life.