What are the specs for this Vinyl Cap?

The correct replacement for Goodman model VCSS961005CNAA — 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 VCSS961005CNAA — 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 1-Piece Vinyl Cap for VCSS961005CNAA — A1781105

Name: OEM Goodman 1-Piece Vinyl Cap for VCSS961005CNAA — A1781105
Brand: Goodman
SKU: GOODMAN-13498
Price: 1.95 USD
Availability: InStock

SKU: GOODMAN-13498 Brand: Goodman

$1.95 $2.49

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Texas CMBL #19328542014

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The Goodman A1781105 1-Piece Vinyl Cap is a genuine OEM fitting for the VCSS961005CNAA gas furnace. This flexible cap seals unused tubing ports, pressure taps, or drain outlets, keeping debris, insects, and moisture out of the system. Using the correct cap ensures the furnace's pressure and combustion circuits stay sealed to factory specification.

Specifications

Type: 1-piece push-on vinyl sealing cap
Use: Caps unused ports, taps, and fittings
Fits: Goodman VCSS961005CNAA and compatible furnaces
OEM Part Number: A1781105
Material: Flexible molded vinyl

OEM vs. Generic

The OEM Goodman A1781105 is molded to the precise port diameter used in your furnace for a snug, air-tight fit. Generic caps often fit loosely and can pop off, creating an air leak that trips the pressure switch. For a part this inexpensive, OEM is the obvious choice.

Installation Difficulty

Very Easy (1/5). Simply push the cap onto the port until it seats fully. No tools required — installation takes under a minute.

Disconnect power before servicing your furnace, and verify the port is meant to be capped per your installation instructions.

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 1-Piece Vinyl Cap fo...

$1.95

Frequently Asked Questions

Does this Vinyl Cap fit my Goodman VCSS961005CNAA — A1781105?

Yes. This is the factory-specified OEM vinyl cap for the Goodman VCSS961005CNAA — 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 VCSS961005CNAA — 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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