What are the specs for this Wiring Harness?

The correct replacement for Goodman model AEPF426016BB — B1378701 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 AEPF426016BB — B1378701.

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.

Goodman

OEM Goodman 5-Pin Wiring Harness for AEPF426016BB — B1378701

Name: OEM Goodman 5-Pin Wiring Harness for AEPF426016BB — B1378701
Brand: Goodman
SKU: B1378701-GEN
Price: 11.95 USD
Availability: InStock

SKU: B1378701-GEN Brand: Goodman

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OEM Goodman B1378701 5-Pin Wiring Harness

The Goodman B1378701 is a genuine 5-pin wiring harness engineered as a direct factory replacement for the AEPF426016BB air handler. This harness delivers high-voltage power to the variable speed blower motor, completing the circuit between the air handler's power connections and the ECM motor. Burnt connectors, loose terminals, or damaged insulation can cause the blower to stop running or trip safeties — this OEM harness restores a safe, factory-correct connection.

Specifications

Connector: 5-pin motor power harness
Application: Air Handler blower motor power supply
OEM Part Number: B1378701
Brand: Goodman
Fits Model: AEPF426016BB

OEM vs. Generic

This genuine Goodman OEM harness matches the exact 5-pin connector and wire gauge required by the AEPF426016BB ECM motor. Generic harnesses or field splices can introduce resistance, heat, and intermittent power loss. OEM guarantees the correct rating and a clean plug-in fit.

Installation Difficulty

Easy to Intermediate — The 5-pin harness unplugs from the motor and power connection and snaps into place. Photograph the original routing before removal and ensure both ends click fully home. Disconnect power at the breaker before servicing this high-voltage connector.

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 5-Pin Wiring Harness...

$11.95

Frequently Asked Questions

Does this Wiring Harness fit my Goodman AEPF426016BB — B1378701?

Yes. This is the factory-specified OEM wiring harness for the Goodman AEPF426016BB — B1378701. 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 AEPF426016BB — B1378701?

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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