What are the specs for this Fitting?

The correct replacement for Goodman model AMEC961205DNAD 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 AMEC961205DNAD Furnace — A1781105.

What symptoms indicate I need a new fitting?

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

Is this fitting 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 1-Piece Vinyl Cap for AMEC961205DNAD Furnace — A1781105

Name: OEM Goodman 1-Piece Vinyl Cap for AMEC961205DNAD Furnace — A1781105
Brand: Goodman
SKU: GOODMAN-4381
Price: 1.95 USD
Availability: InStock

SKU: GOODMAN-4381 Brand: Goodman

$1.95 $2.59

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman A1781105 is a genuine OEM 1-piece vinyl cap used on the AMEC961205DNAD gas furnace and compatible Goodman/Amana equipment. This small but essential component seals unused ports or protects tubing connections, keeping the furnace's pressure and drainage circuits clean and airtight.

Specifications

Part Number: A1781105
Type: 1-piece vinyl cap
Material: Flexible vinyl
Equipment: Gas furnace
Brand: Goodman / Amana
Fit: AMEC961205DNAD and compatible units

OEM vs. Generic

Genuine OEM vinyl caps are sized to the precise port diameter for a snug, air-tight seal. Off-brand caps may stretch, loosen, or fail to seal, allowing air leaks that disrupt pressure-switch operation. The OEM part ensures reliable, long-term sealing.

Installation Difficulty

Very Easy (1/5). A simple push-on replacement — no tools required. Power down the unit, remove the old cap, and press the new cap firmly onto the port. Confirm a secure fit before returning the furnace to service.

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 Fitting fit my Goodman AMEC961205DNAD Furnace — A1781105?

Yes. This is the factory-specified OEM fitting for the Goodman AMEC961205DNAD 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 fitting on my Goodman AMEC961205DNAD 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 fitting?

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

Is this fitting 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 fitting?

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