What are the specs for this Wiring Harness?

The correct replacement for Goodman model APH1636H41BB Heat Pump — 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 APH1636H41BB Heat Pump — 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 APH1636H41BB Heat Pump — B1378701

Name: OEM Goodman 5-Pin Wiring Harness for APH1636H41BB Heat Pump — B1378701
Brand: Goodman
SKU: GOODMAN-15840
Price: 11.95 USD
Availability: InStock

SKU: GOODMAN-15840 Brand: Goodman

$11.95 $15.95

OEM Guaranteed

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Texas CMBL #19328542014

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The Goodman B1378701 is a genuine OEM 5-pin wiring harness engineered specifically for the APH1636H41BB heat pump. This factory connector assembly carries low-voltage control signals between the unit's control board and its components, ensuring correct, reliable communication throughout the system. A cracked, melted, or corroded harness is a common cause of intermittent operation, and this exact-fit replacement restores factory wiring integrity without cutting or splicing.

Specifications

Connector type: 5-pin keyed plug
Application: Low-voltage control wiring
Compatible model: APH1636H41BB heat pump
Brand: Goodman (OEM)
OEM part number: B1378701

OEM vs. Generic

Unlike universal harnesses that require you to match pinouts by hand, this OEM assembly arrives pre-terminated with the correct keyed connector and color-coded leads. That means guaranteed pin alignment, factory-spec wire gauge, and no risk of a reversed or mis-seated connection. Generic alternatives may save a dollar up front but often introduce voltage-drop and continuity problems that are difficult to diagnose.

Install Difficulty: Moderate

Replacement is a plug-and-play swap for anyone comfortable working around low-voltage HVAC controls. Always disconnect power at the breaker before servicing. Photograph the existing routing, unclip the old harness, and seat the new connector until it clicks. No refrigerant work is involved.

Backed by genuine Goodman quality for a precise fit and dependable performance.

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 APH1636H41BB Heat Pump — B1378701?

Yes. This is the factory-specified OEM wiring harness for the Goodman APH1636H41BB Heat Pump — 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 APH1636H41BB Heat Pump — 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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