What are the specs for this Burner Orifice?

The correct replacement for Goodman model AMV80704BXBB 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 AMV80704BXBB 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.

IMAGE COMING SOON

Goodman

OEM Goodman #43 Burner Orifice for AMV80704BXBB Furnace — B4089343

Name: OEM Goodman #43 Burner Orifice for AMV80704BXBB Furnace — B4089343
Brand: Goodman
SKU: GOODMAN-7636
Price: 5.95 USD
Availability: InStock

SKU: GOODMAN-7636 Brand: Goodman

$5.95 $7.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman B4089343 Burner Orifice (#43 drill size) is a genuine OEM gas metering orifice for Goodman and Amana AMV80704BXBB furnaces. The orifice threads into the manifold and precisely meters the volume of gas fired into each in-shot burner. Because BTU output is set by orifice bore, using the correct #43 size is essential for safe, in-spec combustion and proper flame appearance.

Specifications

Part Number: B4089343
Orifice drill size: #43
Type: Brass natural gas burner orifice / spud
Fits: Goodman/Amana AMV80704BXBB furnace manifold
Material: Machined brass
Brand: Goodman (OEM)

OEM vs. Generic

The OEM B4089343 is drilled and gauged to Goodman's exact #43 bore, guaranteeing the rated gas flow. An incorrectly sized or loosely toleranced generic orifice can over- or under-fire the furnace, producing lazy yellow flames, sooting, or high-limit trips. Orifices are a safety-critical metering part — always match OEM bore.

Installation Difficulty: Easy

Shut off gas, back out the old orifice with a nut driver, thread in the replacement, and leak-check. About 15–20 minutes. Confirm the size stamp matches the furnace rating plate before firing.

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 AMV80704BXBB Furnace — B4089343?

Yes. This is the factory-specified OEM burner orifice for the Goodman AMV80704BXBB 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 AMV80704BXBB 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.

Menu