What are the specs for this Mounting Bracket?

The correct replacement for Goodman model GMTH045-3A — B1393803 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 GMTH045-3A — B1393803.

What symptoms indicate I need a new mounting bracket?

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

Is this mounting bracket 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 Single Wing PCB Support for GMTH045-3A — B1393803

Name: OEM Goodman Single Wing PCB Support for GMTH045-3A — B1393803
Brand: Goodman
SKU: GOODMAN-12519
Price: 5.95 USD
Availability: InStock

SKU: GOODMAN-12519 Brand: Goodman

$5.95 $7.95

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Texas CMBL #19328542014

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The Goodman B1393803 Single Wing PCB Support is a genuine OEM mounting standoff used to secure the integrated furnace control board (PCB) inside the GMTH045-3A gas furnace. The single-wing design clips one edge of the board and holds it off the sheet-metal panel at the correct clearance, working alongside the double-wing supports to keep the board rigid and vibration-free. Replacing a cracked or missing support restores secure, factory-correct board mounting and helps prevent flex-related solder failures.

Specifications

OEM Part Number: B1393803
Type: PCB support / mounting standoff
Style: Single wing (single-edge clip)
Function: Control-board retention and spacing
Compatible Model: Goodman GMTH045-3A furnace
Brand: Goodman (genuine OEM)

OEM vs. Generic

The genuine Goodman B1393803 is molded to the precise clip width, height, and snap-in geometry of your furnace cabinet and board. Generic standoffs frequently fail to grip or hold the right clearance, letting the PCB shift and risk shorting against metal. The OEM support is inexpensive insurance for a proper, safe fit.

Installation Difficulty

Easy DIY (1/5). Snap the support into its cabinet slot until it clicks, then slide the board edge into the wing. No tools or wiring needed. Always disconnect power before working near the control board.

Genuine Goodman part, ready to ship. Complete your GMTH045-3A board mounting — order B1393803 today.

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 Single Wing PCB Supp...

$5.95

Frequently Asked Questions

Does this Mounting Bracket fit my Goodman GMTH045-3A — B1393803?

Yes. This is the factory-specified OEM mounting bracket for the Goodman GMTH045-3A — B1393803. 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 mounting bracket on my Goodman GMTH045-3A — B1393803?

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 mounting bracket?

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

Is this mounting bracket 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 mounting bracket?

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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