What igniter fits my Goodman furnace?

The correct replacement for Goodman model GUX120-5 Furnace — B1401003S 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 GUX120-5 Furnace — B1401003S.

My furnace will not ignite. What part is bad?

A furnace that will not ignite after the draft inducer runs typically has a failed igniter. The hot surface igniter should glow bright orange within 60 seconds. If it does not glow at all, it is cracked or burned out. If it glows weakly, it is degrading and should be replaced preventively. Average lifespan: 3 to 7 years.

Is this igniter 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 Spark Ignition Assembly for GUX120-5 Furnace — B1401003S

Name: OEM Goodman Spark Ignition Assembly for GUX120-5 Furnace — B1401003S
Brand: Goodman
SKU: GOODMAN-13396
Price: 73.95 USD
Availability: InStock

SKU: GOODMAN-13396 Brand: Goodman

$73.95 $94.95

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Texas CMBL #19328542014

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The Goodman B1401003S Spark Ignition Assembly is the genuine OEM ignition component for the GUX120-5 gas furnace. It delivers the high-voltage spark that lights the pilot/burner on ignition, and includes the electrode, ceramic insulator, and lead wire in a single serviceable assembly. A weak or failed spark igniter is one of the most common causes of no-heat and ignition-lockout faults.

Specifications

Part number: B1401003S
Component: Spark ignition electrode assembly with cable
Fits: Goodman GUX120-5 furnace
Function: High-voltage spark ignition
Type: Complete OEM replacement assembly

OEM vs. Generic

The OEM assembly arrives with the electrode gap pre-set to Goodman spec and a lead length that routes cleanly to the control board. Generic igniters frequently require gap adjustment and cable splicing, and inconsistent spark quality can trigger repeat lockouts. Because ignition reliability directly affects safety and comfort, OEM is strongly recommended here.

Installation Difficulty

Moderate (3/5). Shut off gas and electrical power. Remove the burner-compartment door, disconnect the ignition lead from the control, unbolt the old electrode, and install the new assembly at the correct gap. Verify a clean spark on restart. Roughly 30–45 minutes; a multimeter and steady hand help. If unsure, use a licensed HVAC technician.

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 Spark Ignition Assem...

$73.95

Frequently Asked Questions

Does this Igniter fit my Goodman GUX120-5 Furnace — B1401003S?

Yes. This is the factory-specified OEM igniter for the Goodman GUX120-5 Furnace — B1401003S. 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 igniter on my Goodman GUX120-5 Furnace — B1401003S?

Difficulty: Medium (20–30 min)
Step 1: Turn off power and gas. Step 2: Open furnace panel. Step 3: Locate igniter near burners. Step 4: Disconnect two-wire plug. Step 5: Remove mounting screw. Step 6: Install new igniter — do NOT touch element with fingers. Step 7: Reconnect, close panel, restore power/gas.

My furnace won’t ignite. What part is bad?

Furnace won’t ignite after the draft inducer runs = failed igniter. The hot surface igniter should glow bright orange within 60 seconds. No glow = cracked/burned out. Weak glow = degrading. Average lifespan: 3–7 years. Replacement: $15–$40 DIY.

Is this igniter 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 igniter?

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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