Check Valves AR 2780

Restore pressure, eliminate pulsation, and keep your AR pump performing at its best with the Dolly #7424 Check Valve Kit. Designed as a direct replacement for AR Kit 2780, this premium aftermarket valve kit delivers OEM-equivalent performance and reliability at a better value.

Worn or damaged check valves are a common cause of pressure fluctuations, loss of pressure, hard starts, and reduced pump efficiency. Replacing them during routine maintenance helps restore proper water flow, improve performance, and extend pump life.

The Dolly #7424 kit is commonly used in AR XW Series pumps, including the popular AR XW.30.28N, one of the most widely used belt-drive pressure washer pumps in the industry.

Common Pump Applications

• AR XW Series Pumps
• AR XWA Series Pumps
• AR XWA-M Series Pumps
• AR XW-M Series Pumps
• AR XWT Series Pumps
• AR XWF Series Pumps
• AR XWL Series Pumps
• AR XWLA Series Pumps

Common Pump Models

• AR XW.30.28N
• AR XW-020
• AR XW-022
• AR XWA-020
• AR XWA-022
• AR XWAM8G35N
• Many other compatible AR XW-family pumps

Features

• Direct replacement for AR Kit 2780
• Complete check valve service kit
• OEM-equivalent fit and performance
• Helps restore pressure and flow
• Reduces pulsation and pressure loss
• Excellent value compared to OEM-branded kits

Benefits

• Restore peak pump performance
• Improve pressure consistency
• Reduce costly downtime
• Extend pump service life
• Save money without sacrificing quality

Cross Reference

• Dolly #7424
• AR Kit 2780
• AR2780
• Annovi Reverberi 2780
• AR Check Valve Kit 2780

Whether you're rebuilding an AR XW.30.28N or servicing another AR XW-family pump, the Dolly #7424 Check Valve Kit provides the quality and reliability professionals expect while delivering outstanding value compared to OEM parts.

Always verify your pump model before ordering.