What are the specs for this Wiring Harness?

The correct replacement for Goodman model GMTH045-3A — 0259F00009P 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 GMTH045-3A — 0259F00009P.

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 15-Pin Female Wiring Harness for GMTH045-3A — 0259F00009P

Name: OEM Goodman 15-Pin Female Wiring Harness for GMTH045-3A — 0259F00009P
Brand: Goodman
SKU: GOODMAN-12526
Price: 19.95 USD
Availability: InStock

SKU: GOODMAN-12526 Brand: Goodman

$19.95 $25.95

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OEM Goodman 0259F00009P 15-Pin Female Wiring Harness

The Goodman 0259F00009P is the genuine 15-pin female wiring harness that mates with the furnace control board on GMTH045-3A gas furnaces and cross-compatible Goodman/Amana equipment. It completes the low-voltage control and blower circuit, delivering signals between the board and the furnace's safety and motor components. Damaged, melted, or intermittent harness connections are a frequent root cause of no-heat and fault-code service calls; the factory connector restores solid, reliable contact.

Specifications

Connector type: 15-pin female
OEM Part Number: 0259F00009P
Fits: Goodman GMTH045-3A and cross-compatible furnace models
Application: Control board / low-voltage circuit
Material: Heat-resistant molded housing with tinned terminals

OEM vs. Generic

Genuine Goodman OEM ensures the pin pitch, keying, and lock tab match the board exactly, so the connector seats fully and stays put under vibration. Universal or spliced alternatives risk loose terminals and heat buildup at the contact points — a real concern on a current-carrying control harness. Choose OEM for a lasting repair.

Installation Difficulty: Easy

Rated Easy for an HVAC professional. De-energize the furnace, release the lock tab and unplug the failed harness, then route and click the new 15-pin connector into the board and mating plug. This is a direct-fit swap with no cutting or crimping. Confirm your furnace model before ordering to guarantee fit.

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 15-Pin Female Wiring...

$19.95

Frequently Asked Questions

Does this Wiring Harness fit my Goodman GMTH045-3A — 0259F00009P?

Yes. This is the factory-specified OEM wiring harness for the Goodman GMTH045-3A — 0259F00009P. 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 GMTH045-3A — 0259F00009P?

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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