What are the specs for this Vinyl Cap?

The correct replacement for Goodman model AMSS960403ANAA — 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 AMSS960403ANAA — 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 Caps for AMSS960403ANAA — A1781105

Name: OEM Goodman 1-Piece Vinyl Caps for AMSS960403ANAA — A1781105
Brand: Goodman
SKU: GOODMAN-7528
Price: 1.95 USD
Availability: InStock

SKU: GOODMAN-7528 Brand: Goodman

$1.95 $2.60

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Texas CMBL #19328542014

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The Goodman A1781105 1-Piece Vinyl Cap is a genuine OEM protective fitting for the AMSS960403ANAA gas furnace and compatible Goodman/Amana models. This vinyl cap seals off unused ports, test taps, or tubing connections, keeping dust, moisture, and insects out of open fittings and preventing air leaks that could affect pressure-switch readings. Small caps are frequently lost during service and are inexpensive to replace as a set.

Specifications

Type: 1-piece flexible vinyl protective cap
Application: Sealing unused ports, taps, and tubing ends
Fits: AMSS960403ANAA and compatible Goodman & Amana furnaces
Material: Durable, flexible vinyl
Part Number: A1781105 (OEM)

OEM vs. Generic

The genuine OEM cap matches the exact port diameter for a snug, secure seal that won't pop off from vibration or heat. Generic caps may be loose or too tight, compromising the seal. For a low-cost consumable that affects furnace air-tightness, the correct OEM cap is the sensible choice.

Installation Difficulty

Very Easy (1/5). Under 5 minutes, no tools required. With the furnace powered down, simply push the cap firmly over the port or fitting until fully seated. Verify it is snug and does not slip.

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 Caps f...

$1.95

Frequently Asked Questions

Does this Vinyl Cap fit my Goodman AMSS960403ANAA — A1781105?

Yes. This is the factory-specified OEM vinyl cap for the Goodman AMSS960403ANAA — 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 AMSS960403ANAA — 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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