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Goodman

OEM Goodman 16-Pin Wiring Harness for APH1636H41AA — B1378700

SKU: GOODMAN-15818 Brand: Goodman
$18.95 $24.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Goodman B1378700 16-Pin Wiring Harness is a genuine OEM pre-terminated wiring assembly for the Amana/Goodman APH1636H41AA packaged heat pump. This harness carries the low-voltage control and sensor circuits between the main control board and the unit's components through a keyed 16-position connector, ensuring every conductor lands on the correct terminal without guesswork.

  • Connector: 16-pin keyed plug
  • Function: Control-board / low-voltage circuit interconnect
  • Construction: Factory-crimped terminals, color-coded leads
  • Benefit: Plug-and-play replacement for damaged or corroded wiring
  • OEM Part Number: B1378700
  • Fits: APH1636H41AA and compatible Goodman/Amana models

OEM vs. Generic: The factory harness uses the exact connector body, pin-out, and wire gauge the control board expects. There is no true generic equivalent — building a substitute from bulk wire and terminals risks mis-pinned connections that can damage the board or components. For control wiring, the OEM harness is the correct and safest choice.

Install difficulty: Intermediate. No refrigerant work is involved, but you'll be working in the control section. Photograph and label connections, disconnect all power at the disconnect first, and match the keyed connector to its mating socket. A confident DIYer or technician can complete the swap in under an hour.

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

Frequently Asked Questions

Does this Wiring Harness fit my Goodman APH1636H41AA — B1378700?
Yes. This is the factory-specified OEM wiring harness for the Goodman APH1636H41AA — 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 APH1636H41AA — 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.
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