What are the specs for this Wiring Harness?

The correct replacement for Goodman model GMN060-3 — B1378700 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 GMN060-3 — B1378700.

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 16-Pin Wiring Harness for GMN060-3 — B1378700

Name: OEM Goodman 16-Pin Wiring Harness for GMN060-3 — B1378700
Brand: Goodman
SKU: GOODMAN-11561
Price: 18.95 USD
Availability: InStock

SKU: GOODMAN-11561 Brand: Goodman

$18.95 $24.95

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Texas CMBL #19328542014

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The Goodman B1378700 16-Pin Wiring Harness is the genuine OEM main control harness for the GMN060-3 gas furnace. This 16-position connector assembly links the integrated furnace control (IFC) board to the furnace's low- and line-voltage circuits — carrying signals for the gas valve, igniter, blower, limit switches, and thermostat inputs. When a harness develops melted pins, loose terminals, or heat-damaged insulation, the furnace can short-cycle, lock out, or fail to fire. A factory harness restores clean, reliable connections without the risk of miswiring.

Specifications

OEM Part Number: B1378700
Connector: 16-pin plug
Part Type: Control board wiring harness
Fits Model: GMN060-3 (confirm connector count on your board)
Brand: Goodman (Amana compatible)
Wiring: Color-coded, factory-terminated leads

OEM vs. Generic

Because pin-out, gauge, and connector keying must match the control board exactly, we stock only the genuine OEM harness. Generic or hand-built harnesses risk incorrect pin assignment and are not recommended for the GMN060-3 control system. The OEM part is plug-and-play — no splicing or crimping required.

Installation Difficulty: Moderate to Advanced

Always disconnect power at the breaker before servicing. Photograph the original connections, unplug the old harness, and route the replacement identically. Basic electrical familiarity is required. Budget 30–60 minutes. If in doubt, 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 16-Pin Wiring Harnes...

$18.95

Frequently Asked Questions

Does this Wiring Harness fit my Goodman GMN060-3 — B1378700?

Yes. This is the factory-specified OEM wiring harness for the Goodman GMN060-3 — B1378700. 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 GMN060-3 — B1378700?

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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