What are the specs for this Vinyl Cap?

The correct replacement for Goodman model AMVM970804CNAA — 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 AMVM970804CNAA — A1781105.

What symptoms indicate I need a new vinyl cap?

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

Is this vinyl cap 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 Caps 1-Piece for AMVM970804CNAA — A1781105

Name: OEM Goodman Vinyl Caps 1-Piece for AMVM970804CNAA — A1781105
Brand: Goodman
SKU: GOODMAN-9289
Price: 1.95 USD
Availability: InStock

SKU: GOODMAN-9289 Brand: Goodman

$1.95 $2.59

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Goodman A1781105 Vinyl Cap (1-Piece)

The Goodman A1781105 vinyl cap is a genuine OEM 1-piece protective cap for the AMVM970804CNAA modulating gas furnace. These flexible caps seal off unused ports, pressure taps, and tubing stubs to keep the furnace's air-handling and condensate circuits airtight. During service they also protect open fittings from debris and moisture, ensuring accurate pressure readings and leak-free operation.

Specifications

OEM Part Number: A1781105
Configuration: 1-Piece
Compatible Model: AMVM970804CNAA (Goodman / Amana AMVM97 series)
Equipment Type: Gas Furnace
Function: Seals/caps unused ports, taps, and tubing ends
Material: Flexible vinyl

OEM vs. Generic

The genuine OEM cap is molded to the exact port and tube diameters on the AMVM97, so it seats snugly and holds an airtight seal — important for correct pressure-switch operation. Generic caps that fit loosely can pop off or leak, causing draft faults.

Installation Difficulty

Easy (1/5) — Simply press the cap over the port or tubing end until seated. No tools required; less than 5 minutes.

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 Caps 1-Piece f...

$1.95

Frequently Asked Questions

Does this Vinyl Cap fit my Goodman AMVM970804CNAA — A1781105?

Yes. This is the factory-specified OEM vinyl cap for the Goodman AMVM970804CNAA — 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 vinyl cap on my Goodman AMVM970804CNAA — 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 vinyl cap?

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

Is this vinyl cap 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 vinyl cap?

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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