What are the specs for this Wiring Harness?

The correct replacement for Goodman model APH1549M41AB — 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 APH1549M41AB — 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.

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Goodman

OEM Goodman 5-Pin Wiring Harness for APH1549M41AB — B1378701

Name: OEM Goodman 5-Pin Wiring Harness for APH1549M41AB — B1378701
Brand: Goodman
SKU: GOODMAN-15675
Price: 11.95 USD
Availability: InStock

SKU: GOODMAN-15675 Brand: Goodman

$11.95 $15.95

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The Goodman B1378701 5-Pin Wiring Harness is a genuine OEM electrical assembly engineered for the APH1549M41AB heat pump and compatible Goodman/Amana air-source units. It links the control board to the outdoor fan and compressor circuit, delivering the exact keyed connectors and factory wire gauge your system was built around. When a harness melts, corrodes, or a pin backs out, intermittent no-cool or no-heat faults follow — this direct-fit replacement restores clean, reliable connections.

Specifications

Connector: 5-pin keyed plug
Fit: Goodman/Amana heat pump, model APH1549M41AB
Type: OEM factory-spec harness
Wire: color-coded, correct AWG for the circuit
Part number: B1378701

OEM vs. Generic

Genuine OEM harnesses use the correct pin geometry and insulation rating so connectors seat fully and resist heat near the compressor. Generic or hand-spliced harnesses often introduce loose pins and resistance that cause nuisance faults. For an electrical part this close to high-current components, OEM is the safe choice.

Installation Difficulty

Easy (1/5). Disconnect power at the breaker, unplug the old harness, and route the new one along the same path. No special tools required. Always confirm power is off before servicing.

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 APH1549M41AB — B1378701?

Yes. This is the factory-specified OEM wiring harness for the Goodman APH1549M41AB — 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 APH1549M41AB — 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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