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Goodman

OEM Goodman 12-Pin Wiring Harness for AMH81405DNAA — 0259F00018

SKU: GOODMAN-6124 Brand: Goodman
$23.95 $30.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Goodman 0259F00018 12-pin wiring harness is a genuine OEM connector assembly for AMH81405DNAA gas furnaces. It carries low-voltage and control signals between the integrated furnace control board and the furnace's components through a keyed 12-pin plug. Melted terminals, chafed insulation, or intermittent connections in the original harness cause erratic operation, blower faults, and no-heat calls — a fresh OEM harness restores solid connections.

  • Type: Wiring harness / connector assembly
  • Connector: 12-pin keyed plug
  • Application: Furnace control board interconnect
  • Terminals: OEM crimped, correct pinout
  • OEM Part #: 0259F00018
  • Fits: AMH81405DNAA and compatible Goodman/Amana furnaces

OEM vs. Generic: A wiring harness is only as good as its pinout. The OEM 0259F00018 is pre-terminated to Goodman's exact wire colors and pin positions, so it plugs straight into the board and mating components with no re-pinning or guesswork. Hand-built generic harnesses risk miswiring and safety-circuit faults.

Install difficulty: Moderate (3/5). Disconnect all power, photograph the existing routing, unplug the old harness at each connector, and transfer connections one at a time to avoid errors. About 20–30 minutes; take care to match every plug to its original location.

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 AMH81405DNAA — 0259F00018?
Yes. This is the factory-specified OEM wiring harness for the Goodman AMH81405DNAA — 0259F00018. 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 AMH81405DNAA — 0259F00018?
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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Mike Rivera
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