What are the specs for this Fitting?

The correct replacement for Goodman model AMES960403ANAA — 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 AMES960403ANAA — 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 Vinyl Cap Fitting for AMES960403ANAA — A1781105

Name: OEM Goodman Vinyl Cap Fitting for AMES960403ANAA — A1781105
Brand: Goodman
SKU: GOODMAN-4793
Price: 4.95 USD
Availability: InStock

SKU: GOODMAN-4793 Brand: Goodman

$4.95 $6.49

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 protective fitting for the Amana/Goodman AMES960403ANAA gas furnace and many compatible models. This molded vinyl cap seals an unused port, tubing stub, or fitting during installation and service, keeping debris, moisture, and airflow out where a permanent connection isn't made.

Specifications

Type: 1-piece molded vinyl cap / plug
Function: Seals unused ports, tubing ends, or fittings
Material: Flexible vinyl
OEM part number: A1781105
Fits: AMES960403ANAA and a wide range of Goodman/Amana furnaces

OEM vs. Generic

The OEM A1781105 is sized to the exact port diameters used on your furnace, so it seats snugly without stretching or falling off. Generic caps in the wrong size can pop loose or fail to seal. At this price point, the genuine part is the easy call.

Installation Difficulty

Very easy — push-on installation, no tools required. Simply seat the cap over the port or tubing end until fully engaged.

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 Fitting fo...

$4.95

Frequently Asked Questions

Does this Fitting fit my Goodman AMES960403ANAA — A1781105?

Yes. This is the factory-specified OEM fitting for the Goodman AMES960403ANAA — 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 AMES960403ANAA — 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