The Grundfos pump (manufacturer part 59896786) is a genuine OEM pump available at Cedars HVAC, your trusted source for heating, cooling, and refrigeration parts. We stock this Grundfos pump for fast nationwide shipping from our Miami warehouse, so contractors, facility managers, and homeowners can get the exact replacement they need without delay.
Product details
The Grundfos circulator pumps, Series UP, are specifically designed for heating systems. The pumps are also suitable for circulation of hot domestic water and for circulation of liquid in cooling and air-conditioning systems.
Note: This unit does not include the union connection. Must be purchased separately.
Standard Union connections available:
529912: 3/4″ Half-Union Threaded End (Pair)
529913: 1/2″ Bronze Sweat Union Set
Union connections with Checks available:
519850: 1/2″ Union Set Bronze IV (For SU)
519852: 3/4″ Union Set Bronze IV (For SU)
Heating systems
Common uses:
Boiler/hydronic heating
Ground-source heat pumps
Radiant floor heating
Hydronic and fan-coil heating
Solar heating
Heat recovery/heat pumps
Pump types with cast iron pump housing are generally used for these applications, considered to be closed systems, for pumping water or water/glycol mixtures. However, when water conditions are not compatible with cast iron, we recommend the use of bronze or stainless steel.
Optional variable-speed and mixing-reset controls are available to customize heat output vs heat demand for increased comfort.
Domestic hot-water systems:
Common uses:
Solar water heating
Hot-water recirculation
Domestic hot-water heating.
Pump types with bronze, brass or stainless steel pump housing are used for these applications, considered to be open systems, for pumping potable water.
Optional timer and thermostat controls are available to limit pump operation to periods when hot water is required and to save energy.
Cooling systems:
Common uses:
Chilled-water pumping.
Pump types UP(S) 25, 26, 43, 50 and pump housings compatible with the pumped liquids are recommended for chilled water due to their motor construction, which is suitable for 32 °F (0 °C) water.
Construction:
Characterized by:
Ceramic shaft and radial bearings
Carbon thrust bearing
Stainless steel rotor can and bearing plate
Impeller of corrosion-resistant material
Pump housing of cast iron, bronze or stainless steel.
Connection: GU 125 Union
The UP pumps are of the canned rotor type, i.e. pump and motor form an integral unit without shaft seal and with only two gaskets for sealing. The bearings are lubricated by the pumped liquid.
Why buy from Cedars HVAC
Genuine OEM Grundfos pump — not aftermarket substitute
Contractor-friendly pricing
Fast nationwide shipping from Miami, FL
Real HVAC expertise — call us at (305) 850-6693 if you need help confirming compatibility
Financing available through Affirm and PayPal Pay Later
About this Grundfos pump
This Grundfos pump is part of our Pumps catalog. Contact us if you need help identifying compatible models or sourcing volume quantities. For installation guidance, always refer to the manufacturer documentation and consult a licensed HVAC technician where required.
Shipping and returns
Most Grundfos pump orders ship the same or next business day from Cedars HVAC in Miami, Florida. Standard ground shipping covers the continental United States, and expedited options are available at checkout. Returns are accepted within 30 days on unopened, uninstalled parts — see our return policy for full details.
Frequently asked questions
Is this an OEM part? Yes, the Grundfos pump we sell is sourced through authorized channels.
Will this Grundfos pump fit my equipment? Compatibility depends on the model. If you need help confirming fitment, call us at (305) 850-6693.
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