What are the specs for this Cap?

The correct replacement for Goodman model AMEC961005CNAB 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 AMEC961005CNAB Furnace — 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.

IMAGE COMING SOON

Goodman

OEM Goodman Vinyl Cap for AMEC961005CNAB Furnace — A1781105

Name: OEM Goodman Vinyl Cap for AMEC961005CNAB Furnace — A1781105
Brand: Goodman
SKU: GOODMAN-4322
Price: 4.95 USD
Availability: InStock

SKU: GOODMAN-4322 Brand: Goodman

$4.95 $6.50

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman A1781105 1-piece vinyl cap is a genuine OEM sealing cap designed for the AMEC961005CNAB gas furnace. Vinyl caps close off unused ports, tubing stubs, and drain/pressure fittings so the furnace maintains correct pressure and stays sealed against dust, insects, and unwanted air infiltration. Missing caps are a frequent cause of pressure-switch faults and drafty, inefficient operation.

Specifications

OEM Part Number: A1781105
Type: 1-piece push-on vinyl cap
Fits: Goodman & Amana furnaces incl. AMEC961005CNAB
Material: Flexible, weather-resistant vinyl
Use: Sealing unused ports, tubing ends, and fittings

OEM vs. Generic

This OEM Goodman cap is molded to the precise diameter of the furnace's factory fittings for a snug, air-tight fit. Generic caps are often loose or too tight and can pop off under vibration. For a reliable seal, OEM is the safe choice.

Installation Difficulty

Very Easy (1/5). Simply push the cap onto the port or tubing end by hand. No tools required; under 1 minute.

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 for AMEC96...

$4.95

Frequently Asked Questions

Does this Cap fit my Goodman AMEC961005CNAB Furnace — A1781105?

Yes. This is the factory-specified OEM cap for the Goodman AMEC961005CNAB 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 cap on my Goodman AMEC961005CNAB 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 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.

Menu