What are the specs for this Heat Exchanger?

The correct replacement for Goodman model GDS81155CXA — 2921308S 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 GDS81155CXA — 2921308S.

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.

IMAGE COMING SOON

Goodman

OEM Goodman 6-Cell Heat Exchanger for GDS81155CXA — 2921308S

Name: OEM Goodman 6-Cell Heat Exchanger for GDS81155CXA — 2921308S
Brand: Goodman
SKU: GOODMAN-10359
Price: 755.95 USD
Availability: InStock

SKU: GOODMAN-10359 Brand: Goodman

$755.95 $989.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman 2921308S 6-Cell Heat Exchanger is a genuine OEM clamshell assembly engineered for GDS81155CXA gas furnaces. This is the heart of the furnace — combustion gases travel through its six steel cells while return air passes over them, transferring heat to your home and keeping flue gases fully separated from the breathing air. A cracked or rusted-through exchanger is a carbon-monoxide hazard and must be replaced immediately.

Specifications

OEM Part Number: 2921308S
Configuration: 6-cell clamshell heat exchanger
Fits Model: GDS81155CXA (115,000 BTU input class)
Material: Aluminized steel cells
Brand: Goodman Genuine OEM

OEM vs. Generic

The Genuine Goodman OEM exchanger matches the exact cell geometry, metallurgy, and burner alignment the furnace was certified with — essential for correct flame impingement, efficiency, and a valid warranty. We do not recommend generic exchangers for a combustion-safety component of this importance.

Install Difficulty

Professional Only (★★★★★). Replacement requires near-complete furnace teardown — removing burners, gas valve, manifold, and blower — followed by combustion setup and CO testing. This job must be performed by a licensed HVAC technician; improper installation risks fire and carbon-monoxide exposure.

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 6-Cell Heat Exchange...

$755.95

Frequently Asked Questions

Does this Heat Exchanger fit my Goodman GDS81155CXA — 2921308S?

Yes. This is the factory-specified OEM heat exchanger for the Goodman GDS81155CXA — 2921308S. 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 GDS81155CXA — 2921308S?

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.

Menu