What are the specs for this Wiring Harness?

The correct replacement for Goodman model APH1642H41BA — 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 APH1642H41BA — 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.

IMAGE COMING SOON

Goodman

OEM Goodman 16-Pin Wiring Harness for APH1642H41BA — B1378700

Name: OEM Goodman 16-Pin Wiring Harness for APH1642H41BA — B1378700
Brand: Goodman
SKU: GOODMAN-15870
Price: 18.95 USD
Availability: InStock

SKU: GOODMAN-15870 Brand: Goodman

$18.95 $24.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Goodman B1378700 16-Pin Wiring Harness

The Goodman B1378700 is a genuine OEM 16-pin wiring harness engineered for the APH1642H41BA heat pump and compatible Goodman/Amana package units. This factory-terminated harness carries low-voltage control and sensor signals between the control board and the unit's switches, motors, and defrost components. Because every pin, wire gauge, and connector keys to the original layout, it drops in without splicing, crimping, or re-pinning — restoring reliable communication across the control circuit.

Specifications

Connector type: 16-pin keyed plug
Application: Low-voltage control / sensor wiring
Fits: Goodman APH1642H41BA heat pump
Equipment type: Package heat pump
OEM part number: B1378700
Brand: Goodman (genuine OEM)

OEM vs. Generic

Generic universal harnesses force you to match wire colors and re-pin connectors by hand — a common source of miswiring and control-board faults. This genuine OEM B1378700 arrives pre-terminated with the correct pinout and connector keying, eliminating guesswork and protecting your warranty. It is the exact harness Goodman ships from the factory.

Installation Difficulty

Easy (1/5). Disconnect power, unplug the old harness at both ends, route the replacement along the same path, and seat the keyed connectors until they click. No tools beyond a nut driver for the panel. Always confirm compatibility with your unit's serial-plate model number before installing.

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...

$18.95

Frequently Asked Questions

Does this Wiring Harness fit my Goodman APH1642H41BA — B1378700?

Yes. This is the factory-specified OEM wiring harness for the Goodman APH1642H41BA — 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 APH1642H41BA — 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.

Menu