What are the specs for this Cap?

The correct replacement for Goodman model VMSS960804CNAA — 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 VMSS960804CNAA — A1781105.

What symptoms indicate I need a new cap?

Common symptoms that indicate you need a new 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 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 VMSS960804CNAA — A1781105

Name: OEM Goodman Vinyl Caps 1-Piece for VMSS960804CNAA — A1781105
Brand: Goodman
SKU: GOODMAN-13801
Price: 1.95 USD
Availability: InStock

SKU: GOODMAN-13801 Brand: Goodman

$1.95 $2.49

OEM Guaranteed

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Texas CMBL #19328542014

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Govt POs Accepted

The Goodman A1781105 1-Piece Vinyl Cap is a genuine OEM replacement for the VMSS960804CNAA gas furnace and related Goodman/Amana models. This protective vinyl cap seals unused ports, fitting ends, or capped connections to keep debris, moisture, and airflow out of the intended passage.

Though small, a missing or cracked cap can cause air leaks that upset combustion pressure balance or allow contaminants into a sealed port. Restoring the correct OEM cap keeps the furnace assembly to factory specification.

Specifications

OEM Part Number: A1781105
Brand: Goodman
Configuration: 1-piece vinyl cap
Compatible Equipment: VMSS960804CNAA gas furnace
Category: Furnace fitting / hardware
Material: Flexible weather-resistant vinyl

OEM vs. Generic

The genuine Goodman vinyl cap is molded to the exact port diameter for a snug, retained fit. Generic caps often slip off or fit loosely, defeating the seal. At this price point, the OEM part is the clear choice for a proper, lasting fit.

Installation Difficulty

Very Easy (1/5). No tools required. Power down the furnace, remove the old cap, and press the new one firmly onto the port or fitting. Takes under a minute.

Not sure this cap matches your furnace? Send your model and serial number to info@nationalhvacparts.com and we will confirm fitment before you buy.

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 Cap fit my Goodman VMSS960804CNAA — A1781105?

Yes. This is the factory-specified OEM cap for the Goodman VMSS960804CNAA — 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 cap on my Goodman VMSS960804CNAA — 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 cap?

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

Is this 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 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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