What are the specs for this Burner?

The correct replacement for Goodman model DMS81405DNA — 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 DMS81405DNA — B4089343.

What symptoms indicate I need a new burner?

Common symptoms that indicate you need a new burner 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 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 DMS81405DNA — B4089343

Name: OEM Goodman #43 Burner Orifice for DMS81405DNA — B4089343
Brand: Goodman
SKU: GOODMAN-9642
Price: 12.95 USD
Availability: InStock

SKU: GOODMAN-9642 Brand: Goodman

$12.95 $16.95

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Goodman B4089343 #43 Burner Orifice

The B4089343 is a genuine Goodman burner orifice (spud) drilled to #43 size for the DMS81405DNA furnace and compatible Goodman/Amana gas furnaces. The orifice meters the exact volume of gas fed into each in-shot burner, so bore diameter directly governs BTU input, flame size, and combustion efficiency. A worn, enlarged, or debris-clogged orifice throws off the air-fuel ratio and causes poor flames or improper firing rate.

Specifications

OEM Part Number: B4089343
Part Type: Burner orifice / spud
Drill Size: #43
Thread: Standard Goodman manifold thread
Material: Machined brass
Fits: Goodman DMS81405DNA and compatible Goodman/Amana furnaces
Sold: Individually (one per burner)

OEM vs. Generic

Orifice sizing is a certified combustion spec. The OEM B4089343 holds the precise #43 bore and thread pitch required for the DMS81405DNA's rated BTU input. Generic or mis-drilled orifices can over- or under-fire the furnace — always use OEM and confirm the size matches your unit's rating plate and fuel type.

Installation Difficulty

Easy (2/5). Shut off gas, back the old orifice out of the manifold with a nut driver, and thread in the replacement. Verify the burner flame after relighting.

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 fit my Goodman DMS81405DNA — B4089343?

Yes. This is the factory-specified OEM burner for the Goodman DMS81405DNA — 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 on my Goodman DMS81405DNA — 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?

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

Is this burner 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?

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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