What are the specs for this Burner Orifice?

The correct replacement for Goodman model AMS81405DXA Furnace — B4089343 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 AMS81405DXA Furnace — B4089343.

What symptoms indicate I need a new burner orifice?

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

Is this burner orifice 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 #43 Burner Orifice for AMS81405DXA Furnace — B4089343

Name: OEM Goodman #43 Burner Orifice for AMS81405DXA Furnace — B4089343
Brand: Goodman
SKU: GOODMAN-7284
Price: 12.95 USD
Availability: InStock

SKU: GOODMAN-7284 Brand: Goodman

$12.95 $16.95

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Goodman B4089343 Burner Orifice (#43 Drill Size)

The B4089343 is a genuine OEM burner orifice (spud) drilled to the #43 size for Goodman and Amana gas furnaces, including the AMS81405DXA. The orifice meters the precise volume of gas delivered to each in-shot burner, setting the input rate and flame quality. Using the correct drill-size orifice is essential for proper BTU input, clean combustion, and safe operation — the wrong size causes over- or under-firing.

Specifications

Type: Burner orifice / spud
Drill size: #43
Fit: Direct OEM replacement — threads into the factory manifold
Compatible model: AMS81405DXA and related Goodman/Amana furnaces
Equipment: Gas furnace (natural gas — verify orifice size for your fuel and altitude)

OEM vs. Generic

The OEM Goodman B4089343 guarantees the exact #43 bore and thread pitch specified for this furnace's manifold and burner set. Generic orifices can vary in bore tolerance, altering the input rate. For correct, code-compliant gas metering, use the OEM part and confirm the orifice size against your furnace rating plate.

Installation Difficulty

Moderate (3/5). The orifice threads out with a nut driver, but the manifold must be accessible and the correct size confirmed for your fuel type and elevation. Shut off gas and power; leak-test the manifold after service. Best performed by an HVAC technician. About 20–30 minutes.

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 #43 Burner Orifice f...

$12.95

Frequently Asked Questions

Does this Burner Orifice fit my Goodman AMS81405DXA Furnace — B4089343?

Yes. This is the factory-specified OEM burner orifice for the Goodman AMS81405DXA Furnace — B4089343. 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 burner orifice on my Goodman AMS81405DXA Furnace — B4089343?

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 burner orifice?

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

Is this burner orifice 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 burner orifice?

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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