What are the specs for this Gas Orifice?

The correct replacement for Goodman model GMP100-3 — B2589343 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 GMP100-3 — B2589343.

What symptoms indicate I need a new gas orifice?

Common symptoms that indicate you need a new gas 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 gas 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 Natural Gas Orifice for GMP100-3 — B2589343

Name: OEM Goodman Natural Gas Orifice for GMP100-3 — B2589343
Brand: Goodman
SKU: GOODMAN-11876
Price: 22.95 USD
Availability: InStock

SKU: GOODMAN-11876 Brand: Goodman

$22.95 $29.95

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Texas CMBL #19328542014

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The Goodman B2589343 Natural Gas Orifice is a genuine OEM replacement precision-drilled for the Goodman GMP100-3 gas furnace. The orifice (or spud) meters the exact volume of gas entering each burner, setting the furnace's BTU input and flame quality. Even a slightly oversized or worn orifice bore causes over-firing, sooting, and lazy yellow flames, while a clogged orifice starves the burner. Installing the factory-spec B2589343 restores clean, blue, efficient combustion.

Specifications

Fuel type: Natural gas
Function: Meters gas to burner for correct BTU input
Fits: Goodman GMP100-3 furnace
Thread: Factory-matched to GMP100-3 manifold
OEM Part Number: B2589343

OEM vs. Generic

Orifice bore diameter is drilled to tight tolerances at the factory — a genuine Goodman OEM orifice guarantees the correct BTU rating for your furnace and altitude. Generic or universal orifices frequently have inconsistent bores that force re-calibration and risk unsafe firing rates. For a metering component, OEM precision matters.

Install Difficulty

Easy to Moderate — shut off the gas, remove the burner assembly, and thread in the new orifice. Verify manifold pressure and flame appearance after install. A common wear item that most handy homeowners can replace, though a technician should confirm firing rate.

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 Natural Gas Orifice ...

$22.95

Frequently Asked Questions

Does this Gas Orifice fit my Goodman GMP100-3 — B2589343?

Yes. This is the factory-specified OEM gas orifice for the Goodman GMP100-3 — B2589343. 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 gas orifice on my Goodman GMP100-3 — B2589343?

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 gas orifice?

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

Is this gas 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 gas 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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