What are the specs for this Wiring Harness?

The correct replacement for Goodman model APH1549M41AD — 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 APH1549M41AD — 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.

IMAGE COMING SOON

Goodman

OEM Goodman 5-Pin Wiring Harness for APH1549M41AD — B1378701

Name: OEM Goodman 5-Pin Wiring Harness for APH1549M41AD — B1378701
Brand: Goodman
SKU: GOODMAN-15690
Price: 11.95 USD
Availability: InStock

SKU: GOODMAN-15690 Brand: Goodman

$11.95 $15.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Goodman B1378701 5-Pin Wiring Harness

The B1378701 is a genuine OEM 5-pin wiring harness engineered for the Goodman/Amana APH1549M41AD packaged heat pump. This harness carries the low-voltage control and sensor connections between the unit's control board and its switches, relays, and motors. Because it is a factory-matched assembly, the connectors, wire gauge, and pin arrangement drop straight into place with no splicing or crimping required.

Specifications

Connector type: 5-pin plug harness
Application: 24V low-voltage control circuit
Compatibility: Goodman/Amana APH1549M41AD heat pump
Wire: color-coded, OEM gauge and length
Part number: B1378701

OEM vs. Generic

Generic universal harnesses require you to identify each wire and re-terminate connectors by hand, introducing a risk of miswiring and intermittent faults. This OEM B1378701 harness is pre-terminated with the exact plugs your APH1549M41AD expects, so it matches factory routing and keeps your control circuit reliable. For a low-cost control component like this, OEM is almost always the smart choice.

Install Difficulty

Easy (1 of 5). Disconnect power at the breaker, unplug the old harness, route the new one along the same path, and reconnect the labeled plugs. Most technicians complete the swap in 10–15 minutes. Always de-energize the unit and confirm connections before restoring power.

Ships from a US warehouse. Questions about fitment? Contact info@nationalhvacparts.com.

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 APH1549M41AD — B1378701?

Yes. This is the factory-specified OEM wiring harness for the Goodman APH1549M41AD — 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 APH1549M41AD — 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.

Menu