What are the specs for this Wiring Harness?

The correct replacement for Goodman model WGHP4418AAE — B1225020 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 WGHP4418AAE — B1225020.

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 Wiring Harness for WGHP4418AAE — B1225020

Name: OEM Goodman Wiring Harness for WGHP4418AAE — B1225020
Brand: Goodman
SKU: GOODMAN-905
Price: 14.95 USD
Availability: InStock

SKU: GOODMAN-905 Brand: Goodman

$14.95 $20.18

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Goodman B1225020 Wiring Harness

The Goodman B1225020 wiring harness is a direct-fit electrical assembly engineered for the WGHP4418AAE air conditioner / heat pump. It bundles the factory-routed conductors and connectors that link the control board, compressor, fan motor, and contactor, ensuring clean signal and power delivery throughout the unit. A failed or chafed harness is a common cause of intermittent operation, no-starts, and nuisance fault codes — replacing it with the correct OEM part restores reliable connections.

Specifications

OEM Part Number: B1225020
Brand: Goodman
Compatible Model: WGHP4418AAE
Type: Multi-connector control wiring harness
Equipment: Air Conditioner / Heat Pump
Insulation: High-temp rated for condensing-unit environments

OEM vs. Generic

The OEM Goodman harness guarantees correct connector keying, wire gauge, and lead lengths for a plug-and-play fit. A generic harness can save money but may require crimping or splicing to match terminals. For warranty-sensitive repairs we recommend OEM.

Installation Difficulty

Moderate — basic hand tools and a wiring diagram required. Always disconnect power before servicing. Label connectors before removal. Professional installation recommended if you are not comfortable with HVAC electrical work.

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 Wiring Harness for W...

$14.95

Frequently Asked Questions

Does this Wiring Harness fit my Goodman WGHP4418AAE — B1225020?

Yes. This is the factory-specified OEM wiring harness for the Goodman WGHP4418AAE — B1225020. 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 WGHP4418AAE — B1225020?

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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