Part Number: 2781
Category: Pressure Washer Parts → Pump Repair Kits → Oil Seal Kits
Type: AR 2781 Oil Seal Kit – OEM Replacement for XW & XWA Pressure Washer Pumps

The AR 2781 Oil Seal Kit (Part #2781) is a genuine OEM replacement repair kit designed for servicing compatible Annovi Reverberi (AR) XW and XWA Series pressure washer pumps. This complete oil seal kit includes the essential oil seals and O-rings required to restore proper crankcase sealing, prevent oil leaks, and protect internal pump components during routine maintenance or pump rebuilds.

Key Features & Benefits

• Genuine AR North America OEM oil seal kit
• Part Number: 2781
• Designed for XW and XWA Series pressure washer pumps
• Complete oil seal replacement kit
• Includes genuine OEM oil seals and O-rings
• Helps prevent crankcase oil leaks
• Maintains proper separation between oil and water chambers
• Restores reliable sealing performance
• Ideal for pump rebuilds and preventive maintenance
• OEM-quality fit and durability

Kit Contents

The AR 2781 Oil Seal Kit includes:

• (1) AR820680 – Oil Seal
• (1) AR1940560 – Oil Seal
• (2) AR1941380 – O-Rings
• (1) AR1940410 – O-Ring

All components are genuine OEM AR North America replacement parts.

Technical Specifications

Part Number: 2781

Product Type: Oil Seal Kit

Manufacturer: AR North America

Compatible Pump Series: XW & XWA

OEM Replacement: Yes

Compatible Pump Models

Designed for use with compatible AR North America pumps, including:

• XW Series
• XWA Series

Always verify your pump model before ordering.

Function of the Oil Seal Kit

The oil seal kit helps:

• Prevent crankcase oil leaks
• Maintain proper lubrication inside the pump
• Separate the oil and water chambers
• Protect bearings and internal components from contamination
• Restore reliable sealing performance
• Extend pump service life

Replacing worn oil seals helps maintain proper lubrication while protecting critical pump components from premature wear.

Common Signs Replacement Is Needed

Replace the oil seal kit if you notice:

• Oil leaking from the crankcase
• Oil contamination with water
• Visible seal wear or deterioration
• Loss of crankcase lubricant
• Pump rebuild or scheduled preventive maintenance
• Excessive oil consumption

Replacing worn oil seals promptly helps prevent bearing damage and other costly internal repairs.

Installation & Service Notes

• Shut down the pressure washer and relieve all system pressure.
• Remove the pump according to the manufacturer's service procedures.
• Drain the crankcase oil before disassembly.
• Carefully remove the existing oil seals and O-rings.
• Clean all sealing surfaces thoroughly.
• Inspect bearings, shafts, and sealing surfaces for wear or damage.
• Install the new oil seals and O-rings in the correct orientation.
• Refill the crankcase with the recommended pump oil.
• Verify proper operation and inspect for oil leaks after startup.

Important: Inspect bearings, water seals, and additional sealing components during service. Replacing related wear items at the same time helps maximize pump reliability and service life.

Maintenance Recommendations

• Inspect oil seals during routine pump maintenance.
• Replace seals at the first signs of oil leakage or contamination.
• Maintain the proper crankcase oil level using the manufacturer's recommended lubricant.
• Change pump oil at the recommended service intervals.
• Use only genuine OEM AR North America replacement parts to maintain optimum pump performance, reliability, and long service life.