Shurflo 9480023 Upper Housing Assembly for 4138 Series Pumps

The Shurflo 9480023 (94-800-23) is a complete replacement upper housing assembly designed specifically for the Shurflo 4138 series Aqua King II and 4128 series freshwater pumps. This OEM replacement part is essential for maintaining peak pump performance and extends the service life of your water system.

Key Features:

• Includes 55 PSI demand switch for accurate pressure control
• Built-in bypass valve for smooth operation and consistent flow
• Designed for 3.0 GPM Aqua King II series pumps
• Complete upper housing with connection ports for water supply lines
• Direct OEM replacement for bench or field repair
• Durable construction for marine, RV, and freshwater applications

Important Note: This assembly does not include valve, check valve, or drive assemblies. The upper housing allows for connection of water supply lines to the pump and works with the 4138 and 4128 pump series that feature four independent chambers for smooth flow without rapid cycling.

Shurflo has built its reputation on reliability and dependability. This genuine replacement part ensures your water pump system continues to deliver the performance you expect from the Aqua King II line.