The Grundfos pump (manufacturer part 98126840) is a genuine OEM pump available at Cedars HVAC, your trusted source for heating, cooling, and refrigeration parts. We stock this 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
MAGNA3 50-80 F Cast Iron Circulator Pump, GF 53 Flange (1/3 HP, 208/230V)
MAGNA3 – More than a pump With its unrivalled efficiency, all-encompassing range and built-in communication capabilities plus functionalities replacing system components, the MAGNA3 is ideal for engineers and specifiers looking to create high-performance systems for buildings. This pump in the Grundfos Master Class will fit both heating and cooling applications perfectly, making it the obvious choice for almost any building project – old or new.
The MAGNA3 is 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. The innovative clamp with only one screw enables easy repositioning of the pump head. The MAGNA3 is a pump with no maintenance requirements and with extremely low Life Cycle Cost.
Product Details
AUTOADAPT mode that automatically finds the optimal setting
FLOWLIMIT reduces the need for pump throttling valves
Proportional pressure control
Constant pressure control
Constant flow mode
Intuitive color display
Application Wizard for easy commissioning
Wireless twin pump redundancy for double pump performance and reduced downtime in service situations
Vast communication options, including analog and digital inputs, configurable relays, and fieldbus integration (requires additional CIM module)
Genuine OEM Grundfos parts — not aftermarket substitutes
Contractor-friendly pricing on every pump
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 part
This Grundfos pump is part of our Pumps catalog. If you are sourcing pumps for a fleet of equipment or a commercial install, contact us for volume pricing. 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. International shipping is available on request; contact our team for a quote.
Frequently asked questions
Is this an OEM Grundfos part? Yes, the Grundfos pump we sell is a genuine Grundfos pump sourced through authorized channels. We do not substitute aftermarket parts unless specifically marked.
Will this pump fit my equipment? Compatibility depends on the model and revision of your existing equipment. If you need help confirming fitment for the Grundfos pump, call us at (305) 850-6693 with your unit model number and we will confirm before you order.
Can I get a contractor or wholesale discount? Yes. Cedars HVAC offers volume pricing for licensed HVAC contractors, property managers, and resellers. Request contractor pricing or call us to set up an account.
$1,915.00
$148.00
