What are the specs for this Thermal Fuse?

The correct replacement for Goodman model GUN125-5 — B1497204 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 GUN125-5 — B1497204.

What symptoms indicate I need a new thermal fuse?

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

Is this thermal fuse 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 144°C Fusible Link Thermal Fuse for GUN125-5 — B1497204

Name: OEM Goodman 144°C Fusible Link Thermal Fuse for GUN125-5 — B1497204
Brand: Goodman
SKU: GOODMAN-13168
Price: 21.95 USD
Availability: InStock

SKU: GOODMAN-13168 Brand: Goodman

$21.95 $28.95

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The Goodman B1497204 Fusible Link is a genuine OEM 144°C (291°F) one-shot thermal fuse for the GUN125-5 gas furnace. This last-line safety device opens the control circuit permanently if furnace temperatures reach an unsafe extreme — for example after a blower failure — shutting down the burners and protecting against fire and heat-exchanger damage.

Specifications

Part Number: B1497204
Type: One-shot fusible link / thermal cutoff
Rated Trip Temperature: 144°C (291°F)
Function: Non-resetting high-temperature safety fuse
Fits: Goodman GUN125-5 gas furnace
Brand: Goodman OEM replacement

OEM vs. Generic

Trip temperature is everything on a thermal fuse. The OEM B1497204 is factory-calibrated to 144°C — the exact rating Goodman specified. A generic link with a different rating either fails to protect (too high) or nuisance-trips (too low). For a non-resettable safety fuse, always install OEM.

Installation Difficulty

Easy (2/5). A single in-line link with two terminals. Because it is a one-shot device, a tripped link must be replaced, not reset. Shut off gas and power first, and investigate the root cause (e.g., failed blower) before returning the furnace to service.

Restore your furnace's final safety cutoff with the genuine Goodman B1497204. In stock now.

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 144°C Fusible Link T...

$21.95

Frequently Asked Questions

Does this Thermal Fuse fit my Goodman GUN125-5 — B1497204?

Yes. This is the factory-specified OEM thermal fuse for the Goodman GUN125-5 — B1497204. 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 thermal fuse on my Goodman GUN125-5 — B1497204?

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 thermal fuse?

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

Is this thermal fuse 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 thermal fuse?

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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