What are the specs for this Wiring Harness?

The correct replacement for Goodman model AMH80905CNAB — 0259F00018 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 AMH80905CNAB — 0259F00018.

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 12-Pin Wiring Harness for AMH80905CNAB — 0259F00018

Name: OEM Goodman 12-Pin Wiring Harness for AMH80905CNAB — 0259F00018
Brand: Goodman
SKU: GOODMAN-5858
Price: 23.95 USD
Availability: InStock

SKU: GOODMAN-5858 Brand: Goodman

$23.95 $30.95

OEM Guaranteed

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30-Day Returns

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Texas CMBL #19328542014

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The Goodman 0259F00018 12-Pin Wiring Harness is a genuine OEM wiring assembly for the Goodman/Amana AMH80905CNAB gas furnace and compatible 80% AFUE models. This pre-terminated harness links the integrated furnace control board to key components, ensuring clean, reliable signal and power connections. Melted connectors, corroded pins, or rodent-damaged wiring can cause intermittent faults and no-heat conditions — a fresh OEM harness restores dependable operation.

Specifications

OEM Part Number: 0259F00018
Part Type: 12-Pin Wiring Harness
Connector: 12-position keyed plug
Fits: AMH80905CNAB and compatible Goodman/Amana furnaces
Function: Board-to-component power and signal wiring
Equipment: Gas Furnace

OEM vs. Generic

The OEM harness is factory-terminated with the exact 12-pin keyed connector, wire gauge, and lead lengths for a plug-and-play swap. Building a generic harness risks pin miswiring and shorts. OEM ensures correct polarity, a secure fit, and a warranty-safe repair.

Installation Difficulty

Easy (2/5) — Cut power, photograph existing routing, unplug the keyed connectors, and swap. The keyed plug prevents misconnection. About 20 minutes for most DIYers.

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 12-Pin Wiring Harnes...

$23.95

Frequently Asked Questions

Does this Wiring Harness fit my Goodman AMH80905CNAB — 0259F00018?

Yes. This is the factory-specified OEM wiring harness for the Goodman AMH80905CNAB — 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 AMH80905CNAB — 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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