What are the specs for this Heat Exchanger?

The correct replacement for Goodman model GMNT060-3B — 4821401S is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Goodman equipment which lists the model number GMNT060-3B — 4821401S.

What symptoms indicate I need a new heat exchanger?

Common symptoms that indicate you need a new heat exchanger include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

Is this heat exchanger compatible with Bryant or Payne systems too?

Many Goodman parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

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Goodman

OEM Goodman 14" 3-Cell Heat Exchanger for GMNT060-3B — 4821401S

Name: OEM Goodman 14" 3-Cell Heat Exchanger for GMNT060-3B — 4821401S
Brand: Goodman
SKU: GOODMAN-11645
Price: 336.95 USD
Availability: InStock

SKU: GOODMAN-11645 Brand: Goodman

$336.95 $449.95

OEM Guaranteed

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30-Day Returns

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Texas CMBL #19328542014

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The Goodman 4821401S is a genuine OEM 14-inch, 3-cell heat exchanger engineered as a direct-fit replacement for GMNT060-3B gas furnaces. The heat exchanger is the heart of your furnace's heating process — combustion gases pass through its cells while air from your blower flows across the exterior, transferring heat into your home without allowing exhaust gases to mix with breathable air. A cracked or corroded exchanger is a safety hazard, and replacing it with an OEM unit restores both efficiency and peace of mind.

Specifications

Size: 14 inch
Configuration: 3-cell
Material: Aluminized steel for corrosion resistance
Compatibility: Goodman GMNT060-3B furnace
OEM Part Number: 4821401S
Brand: Goodman / Amana

OEM vs. Generic

This genuine OEM heat exchanger is built to the exact tube geometry, cell spacing, and metal gauge specified by Goodman, ensuring proper combustion airflow and a factory-correct fit. Generic exchangers often vary in cell dimensions and weld quality, which can lead to poor heat transfer, premature cracking, or improper flame patterns. For a critical combustion component, OEM is strongly recommended.

Installation Difficulty

Advanced (Professional Recommended). Heat exchanger replacement requires disassembly of the burner and blower sections, gas line handling, and combustion testing. This repair should be performed by a licensed HVAC technician with a combustion analyzer.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $75
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

OEM Goodman 14" 3-Cell Heat Exch...

$336.95

Frequently Asked Questions

Does this Heat Exchanger fit my Goodman GMNT060-3B — 4821401S?

Yes. This is the factory-specified OEM heat exchanger for the Goodman GMNT060-3B — 4821401S. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the heat exchanger on my Goodman GMNT060-3B — 4821401S?

Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.

What symptoms mean I need a new heat exchanger?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this heat exchanger compatible with Bryant or Payne too?

Many Goodman parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my Goodman heat exchanger?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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