What are the specs for this Fitting?

The correct replacement for Goodman model AMVM970804CNBA Furnace — A1781105 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 AMVM970804CNBA Furnace — A1781105.

What symptoms indicate I need a new fitting?

Common symptoms that indicate you need a new fitting include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

Is this fitting 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 Vinyl Cap Fitting for AMVM970804CNBA Furnace — A1781105

Name: OEM Goodman Vinyl Cap Fitting for AMVM970804CNBA Furnace — A1781105
Brand: Goodman
SKU: GOODMAN-9299
Price: 3.95 USD
Availability: InStock

SKU: GOODMAN-9299 Brand: Goodman

$3.95 $4.99

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OEM Goodman A1781105 1-Piece Vinyl Cap

This genuine Goodman/Amana 1-piece vinyl cap, part A1781105, is a direct-fit sealing fitting used on the AMVM970804CNBA gas furnace and related Goodman/Amana models. Vinyl caps seal off unused pressure-tap ports, tubing stubs, and drain fittings so the furnace maintains correct pressure-switch readings and prevents air or condensate leaks. Missing or dry-rotted caps are an easy-to-overlook cause of pressure-switch faults and whistling air leaks.

Specifications

OEM Part Number: A1781105
Type: 1-piece vinyl sealing cap / port plug
Material: Flexible vinyl
Function: Seals unused ports, tubing stubs, and fittings
Compatibility: AMVM970804CNBA and related Goodman/Amana furnaces

OEM vs. Generic

The OEM cap is sized to the exact port diameter for an airtight fit that holds up to furnace heat and condensate exposure. Generic caps may be loose or made of material that hardens and cracks, reintroducing leaks. At this price, genuine OEM is the obvious choice.

Install Difficulty

Very Easy — under 5 minutes. Simply press the cap onto the port or tubing. No tools required.

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 Vinyl Cap Fitting fo...

$3.95

Frequently Asked Questions

Does this Fitting fit my Goodman AMVM970804CNBA Furnace — A1781105?

Yes. This is the factory-specified OEM fitting for the Goodman AMVM970804CNBA Furnace — A1781105. 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 fitting on my Goodman AMVM970804CNBA Furnace — A1781105?

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 fitting?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this fitting 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 fitting?

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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