Part Number: 47110
Category: Pressure Washer Parts → Pump Repair Kits → Packing & Water Seals
Type: AR 47110 Packing Water Seal – 18mm for RR Series Pressure Washer Pumps

The AR 47110 Packing Water Seal (Part #47110) is a genuine OEM replacement water seal designed for servicing compatible Annovi Reverberi (AR) RR and RRA-N Series pressure washer pumps. Engineered with an 18 mm sealing diameter, this OEM component helps maintain proper sealing around the ceramic plungers while preventing water leakage and preserving pump efficiency.

Key Features & Benefits

• Genuine AR (Annovi Reverberi) OEM replacement water seal
• Part Number: 47110
• Designed for 18 mm ceramic plungers
• Compatible with RR and RRA-N Series pumps
• Restores proper sealing performance
• Helps eliminate water leakage
• Maintains pump pressure and efficiency
• Reduces internal component wear
• Ideal for pump rebuilds and preventive maintenance
• OEM-quality fit and durability

Technical Specifications

Part Number: 47110

Product Type: Packing Water Seal

Manufacturer: AR (Annovi Reverberi)

Seal Size: 18 mm

OEM Replacement: Yes

Compatible Pump Models

Designed for use with compatible AR pumps, including:

• RR Series
• RRA-N Series

Always verify your pump model and seal size before ordering.

Function of the Packing Water Seal

The water seal helps:

• Prevent water leakage around the ceramic plungers
• Maintain proper pump pressure
• Protect internal pump components from water intrusion
• Reduce wear on sealing surfaces
• Improve overall pump efficiency
• Support reliable long-term operation

Replacing worn water seals helps restore pump performance while minimizing the risk of internal damage caused by leaking or deteriorated seals.

Common Signs Replacement Is Needed

Replace the packing water seal if you notice:

• Water leaking from the pump manifold
• Reduced operating pressure
• Decreased water flow
• Worn or damaged seals
• Pump rebuild or scheduled maintenance
• Water bypass around the plungers

Replacing worn seals promptly helps prevent additional damage to ceramic plungers, manifolds, and other internal pump components.

Installation & Service Notes

• Shut down the pressure washer and relieve all system pressure.
• Remove the pump manifold according to the manufacturer's service procedure.
• Carefully remove the worn water seals.
• Clean all sealing surfaces and inspect the ceramic plungers for wear or scoring.
• Lubricate the new seals lightly before installation.
• Install the replacement seals in the correct orientation.
• Reassemble the pump and verify proper operation and leak-free performance.

Important: Inspect ceramic plungers, O-rings, and packings during service. Replacing worn sealing components together helps maximize pump reliability and service life.

Maintenance Recommendations

• Inspect water seals during routine pump maintenance.
• Replace seals at the first signs of leakage or pressure loss.
• Keep inlet water properly filtered to reduce seal wear.
• Never operate the pump without an adequate water supply.
• Use only genuine OEM AR replacement seals to maintain optimum pump performance, reliability, and long service life.