What are the specs for this Wiring Harness?

The correct replacement for Goodman model APH1543M41CA — 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 APH1543M41CA — 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 APH1543M41CA — B1378701

Name: OEM Goodman 5-Pin Wiring Harness for APH1543M41CA — B1378701
Brand: Goodman
SKU: GOODMAN-15648
Price: 11.95 USD
Availability: InStock

SKU: GOODMAN-15648 Brand: Goodman

$11.95 $15.95

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Texas CMBL #19328542014

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The Goodman B1378701 is a genuine OEM 5-pin wiring harness for the APH1543M41CA heat pump. This compact, factory-terminated harness connects a specific sub-circuit — such as a sensor, motor, or accessory lead — to the unit's control board using a keyed 5-pin plug. Because every connector is pre-crimped and correctly gauged at the factory, it installs as a direct plug-in with no cutting or splicing.

Specifications

OEM Part Number: B1378701
Fits Model: APH1543M41CA (Heat Pump)
Connector: 5-pin plug
Type: Low-voltage control / component wiring harness
Brand: Goodman (genuine OEM)

OEM vs. Generic

Even a small harness must match its connector's keying and pin assignment exactly. The OEM B1378701 mates precisely with the factory receptacle so polarity and signal routing are guaranteed correct. Generic pigtails require manual crimping and pinning, which is a common source of intermittent electrical faults.

Installation Difficulty

Easy to Moderate. With the disconnect off, unplug the failed harness and click the replacement into the same location. Take a reference photo before removal. No refrigerant handling is involved, making this a manageable job for a confident DIYer, though a technician is advised if the fault is unclear.

Compatible with Goodman APH1543M41CA heat pumps. Match the 5-pin connector and model number before ordering.

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 APH1543M41CA — B1378701?

Yes. This is the factory-specified OEM wiring harness for the Goodman APH1543M41CA — 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 APH1543M41CA — 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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