What are the specs for this Burner Orifice?

The correct replacement for Goodman model DDS80703AXA — 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 DDS80703AXA — 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 Burner Orifice #43 for DDS80703AXA — B4089343

Name: OEM Goodman Burner Orifice #43 for DDS80703AXA — B4089343
Brand: Goodman
SKU: GOODMAN-9445
Price: 5.95 USD
Availability: InStock

SKU: GOODMAN-9445 Brand: Goodman

$5.95 $7.95

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Goodman B4089343 #43 Burner Orifice

The B4089343 is a genuine OEM Goodman burner orifice (spud), drilled to a #43 gauge to meter the correct gas flow into each burner of your furnace. It is an exact-fit replacement for the Goodman DDS80703AXA gas furnace and other compatible Goodman/Amana models using #43 natural-gas orifices. A cracked, corroded, or wrong-size orifice causes poor flame quality, delayed ignition, sooting, or low BTU output — replacing it restores clean, efficient combustion.

Specifications

Orifice size: #43 drill gauge
Fuel: Natural gas
Material: Machined brass
Thread: Standard Goodman burner spud thread
Fits: Goodman DDS80703AXA and compatible 80% furnaces
OEM Part Number: B4089343

OEM vs. Generic

Our OEM option is a genuine Goodman-spec orifice drilled to exact factory tolerances, guaranteeing correct gas metering and safe input rate. A Generic equivalent offers a budget-friendly brass orifice at the same #43 sizing, ideal when you need a fast, economical fix. Both meter to the #43 specification; the OEM part carries factory validation for warranty-sensitive repairs.

Installation Difficulty

Easy (1/5). Shut off gas and power, remove the burner assembly, thread out the old orifice with a nut driver, and thread in the replacement. No calibration required — but always verify flame and check for leaks with soap solution after install.

Not sure this fits your unit? Contact info@nationalhvacparts.com with your model and serial number.

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 Burner Orifice #43 f...

$5.95

Frequently Asked Questions

Does this Burner Orifice fit my Goodman DDS80703AXA — B4089343?

Yes. This is the factory-specified OEM burner orifice for the Goodman DDS80703AXA — 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 DDS80703AXA — 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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