What are the specs for this Wiring Harness?

The correct replacement for Goodman model AEPF426016BA — 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 AEPF426016BA — 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.

Goodman

OEM Goodman 16-Pin Wiring Harness for AEPF426016BA — B1378700

Name: OEM Goodman 16-Pin Wiring Harness for AEPF426016BA — B1378700
Brand: Goodman
SKU: B1378700-GEN
Price: 23.95 USD
Availability: InStock

SKU: B1378700-GEN Brand: Goodman

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The Goodman B1378700 16-Pin Wiring Harness is a genuine OEM connector assembly for the Goodman AEPF426016BA air handler. This 16-circuit harness carries control and power signals between the integrated control board, the blower motor, and the air handler's low-voltage terminals. When pins corrode, insulation melts near the motor, or a connector cracks, you can get intermittent blower operation, error codes, or a no-heat/no-cool fault that mimics a failed board. Replacing the harness restores clean, reliable connections.

Specifications

Connector: 16-pin (16-circuit) plug
Function: Control board to motor/terminal interconnect
Wire: Color-coded, factory-terminated leads
Fits: Goodman AEPF426016BA and compatible AEPF air handlers
OEM Part Number: B1378700
Brand: Goodman

OEM vs. Generic

This genuine Goodman OEM harness arrives pre-terminated with the correct pin-out, gauge, and connector keying — it plugs straight in with no splicing or guesswork. Generic harnesses or hand-built splices risk pin mismatches and loose crimps that can damage the control board. For anything carrying control signals, OEM eliminates the risk.

Installation Difficulty

Easy. Largely plug-and-play: disconnect power, unplug the old harness at both ends, route the new one along the same path, and reseat the connectors until they click. Plan 20–30 minutes. Photograph the routing before removal so the replacement follows the same path away from hot or moving parts.

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...

$23.95

Frequently Asked Questions

Does this Wiring Harness fit my Goodman AEPF426016BA — B1378700?

Yes. This is the factory-specified OEM wiring harness for the Goodman AEPF426016BA — 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 AEPF426016BA — 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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