What are the specs for this Burner Orifice?

The correct replacement for Goodman model ADV80703BXBB — 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 ADV80703BXBB — 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 ADV80703BXBB — B4089343

Name: OEM Goodman #43 Burner Orifice for ADV80703BXBB — B4089343
Brand: Goodman
SKU: GOODMAN-3434
Price: 5.95 USD
Availability: InStock

SKU: GOODMAN-3434 Brand: Goodman

$5.95 $7.95

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Goodman B4089343 #43 Burner Orifice

The B4089343 is a genuine OEM #43 drill-size burner orifice (gas spud) for the Goodman/Amana ADV80703BXBB gas furnace. Threaded into the gas manifold, each orifice meters the precise volume of gas fed to its in-shot burner, setting the furnace's firing rate and BTU input. A clogged, corroded, or wrong-size orifice throws off the air/fuel mixture and causes under- or over-firing, poor flame quality, and efficiency loss. The #43 sizing is calibrated for natural gas at standard manifold pressure on this model.

Specifications

Part Number: B4089343
Type: Burner orifice / gas spud
Orifice Size: #43 drill
Fuel: Natural gas (verify manifold pressure)
Fits: Goodman/Amana ADV80703BXBB and compatible ADV-series manifolds
Function: Meters gas flow to a single in-shot burner

OEM vs. Generic

Genuine Goodman orifices are precision-drilled to the exact #43 bore and thread pitch specified for this furnace, so firing rate and BTU input stay within spec. Generic orifices can vary in bore diameter, altering input and combustion safety margins. Because orifice sizing is combustion-critical, OEM is the recommended choice — and orifices should be sized to the fuel type and altitude of the installation.

Installation Difficulty

Moderate (3/5). Requires shutting off the gas, removing the manifold or burner assembly, unthreading the old orifice, and installing the new spud without cross-threading. About 30–45 minutes. A post-install combustion/manifold-pressure check is strongly recommended.

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...

$5.95

Frequently Asked Questions

Does this Burner Orifice fit my Goodman ADV80703BXBB — B4089343?

Yes. This is the factory-specified OEM burner orifice for the Goodman ADV80703BXBB — 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 ADV80703BXBB — 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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