What are the specs for this Wiring Harness?

The correct replacement for Goodman model GSMS100-4 Furnace — 2568416 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 GSMS100-4 Furnace — 2568416.

What symptoms indicate I need a new wiring harness?

Common symptoms that indicate you need a new wiring harness include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

Is this wiring harness 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 HSI Wiring Harness for GSMS100-4 Furnace — 2568416

Name: OEM Goodman HSI Wiring Harness for GSMS100-4 Furnace — 2568416
Brand: Goodman
SKU: GOODMAN-12985
Price: 28.95 USD
Availability: InStock

SKU: GOODMAN-12985 Brand: Goodman

$28.95 $38.95

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The Goodman 2568416 HSI Wiring Harness is the factory-specified igniter harness for the GSMS100-4 gas furnace. It carries the low-voltage signal from the integrated furnace control board to the hot surface igniter, and a damaged, brittle, or heat-cracked harness is one of the most common causes of intermittent no-ignition faults. Replacing the harness restores a clean, reliable connection without having to swap the igniter or control board.

Specifications

Function: Hot surface igniter (HSI) wiring harness
Fits: Goodman GSMS100-4 furnace
OEM Part Number: 2568416
Connectors: Factory-keyed, heat-rated terminals
Equipment Type: Gas furnace

OEM vs. Generic

The OEM 2568416 arrives with the correct plug orientation and high-temperature insulation rated for the burner compartment, so it drops in without splicing. Our generic equivalent covers the same electrical path at a lower price but may require you to verify connector keying before install. For a guaranteed no-modification fit, choose OEM.

Installation Difficulty

Easy (1/5). Shut off power at the furnace disconnect, unplug the old harness at both ends, and seat the replacement until the connectors click. No tools beyond a nut driver to open the burner access panel. Typical replacement time is under 15 minutes.

Always confirm the part number on your existing harness before ordering. Compatible with Goodman GSMS100-4 furnaces.

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 HSI Wiring Harness f...

$28.95

Frequently Asked Questions

Does this Wiring Harness fit my Goodman GSMS100-4 Furnace — 2568416?

Yes. This is the factory-specified OEM wiring harness for the Goodman GSMS100-4 Furnace — 2568416. 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 wiring harness on my Goodman GSMS100-4 Furnace — 2568416?

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 wiring harness?

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

Is this wiring harness 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 wiring harness?

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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