94-800-00 — Upper housing assembly
A standalone OEM upper housing kit, not the complete motor or entire pump head.
SHURflo Revolution 4008 RV Water Pump Parts Diagram & Repair Kits
The SHURflo Revolution 4008-101-A65 / 4008-101-E65 is a 12V, four-chamber diaphragm fresh-water pump used in RV systems. Use this guide to identify individual repair kits before replacing the entire pump. Check the exact model and voltage on the pump label.
Which Revolution 4008 version do you have?
4008-101-A65 is an OEM 12V pump and 4008-101-E65 is the corresponding 12V aftermarket model in Pentair's technical data sheet. Other similarly named versions include 4008-131 (24V DC) and 4008-171 (115V AC). Do not exchange the different voltage motors or pumps based on the 4008 family name alone.
SHURflo 4008 replacement pump-head and switch parts
94-800-04 — Complete pump-head service kit
Manufacturer kit includes the major pump-head components; motor not included.
94-800-05 — Pressure-switch assembly
Separate pressure-switch assembly for compatible Revolution 4008 pumps, including the 12V 4008-101-A65 and -E65 models. Match the number on your original pump before ordering.
Other SHURflo 4008 service components
94-800-01 — Valve assembly
Replacement valve assembly for the specified 4008 pump head. Confirm the full 4008 model number before ordering.
94-800-02 — Drive assembly
Internal drive assembly, distinct from the valve kit and electric motor.
94-11-302-00 — 12V DC motor
12V DC motor used in Pentair's 4008-101 configuration. Do not substitute for a 24V or 115V pump motor.
94-800-03 — Check valve
One-way check valve listed as a separate, unpictured repair item in Pentair’s factory diagram. Check the pump model and original valve number before ordering.
94-800-05 — Pressure switch
Pressure switch shown as item 5 on Pentair’s 4008 drawing. A matching 94-800-05 replacement is pictured and linked above.
What causes a Revolution pump to cycle or lose flow?
Before ordering a replacement head, inspect the inlet strainer, tank level, plumbing air leaks, supply voltage and hose restrictions. Debris or wear in the check valve and valves can affect water flow or cause unwanted cycling, but those symptoms alone do not identify a failed component. The maker's data sheet specifies 55 PSI nominal shut-off and a maximum liquid temperature of 130°F / 54°C for the cited 12V model.
The 94-800-04 head kit includes the major front-end components; the separate 94-800-00 upper housing is a smaller assembly. Confirm which parts you need before ordering a complete pump head.
SHURflo 4008 exploded parts drawing and specifications
Pentair SHURflo Revolution 4008-101 technical data sheet (PDF) contains the official exploded kit drawing, factory part numbers and 12V performance data. The Pentair RV pump catalog compares repair kits across 12V, 24V and 115V versions.
Service safety: Turn off pump power, depressurize water lines and cleanly drain the system before replacing components. Protect the fresh-water plumbing from contamination and follow the original manufacturer procedure for reassembly.
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