What are the specs for this Fitting?

The correct replacement for Goodman model AMVM971205DNAA — 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 AMVM971205DNAA — 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.

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Goodman

OEM Goodman Vinyl Pressure Tap Caps for AMVM971205DNAA — A1781105

Name: OEM Goodman Vinyl Pressure Tap Caps for AMVM971205DNAA — A1781105
Brand: Goodman
SKU: GOODMAN-9329
Price: 7.95 USD
Availability: InStock

SKU: GOODMAN-9329 Brand: Goodman

$7.95 $10.95

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OEM Goodman A1781105 1-Piece Vinyl Caps

The Goodman A1781105 is a genuine OEM 1-piece vinyl cap used on the Amana/Goodman AMVM971205DNAA gas furnace to seal off unused pressure-tap ports, tubing nipples, or gas-valve/manifold test points. These flexible caps maintain the sealed pressure envelope the furnace relies on for correct draft and pressure-switch operation. A missing or dried-out cap can create a small leak that causes intermittent pressure-switch faults and hard-to-diagnose lockouts, so replacing it with the correct OEM part restores reliable operation.

Specifications

Part Number: A1781105
Type: 1-piece vinyl seal-off cap/plug
Function: Seals unused pressure-tap and tubing ports
Fits: Amana/Goodman AMVM971205DNAA and compatible AMVM97 furnaces
Material: Flexible vinyl, OEM-spec bore
Brand: Goodman (OEM)

OEM vs. Generic

Generic caps vary in bore size and durability; an over-loose cap can blow off under pressure while an over-tight one may split. This OEM vinyl cap is sized to the exact port diameter on your furnace for a snug, lasting seal that holds up to heat and vibration.

Installation Difficulty

Very Easy (1 of 5). Simply push the cap onto the open port — no tools required, under 2 minutes. Turn off furnace power before servicing and confirm the pressure switch and ignition sequence operate normally afterward.

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 Pressure Tap C...

$7.95

Frequently Asked Questions

Does this Fitting fit my Goodman AMVM971205DNAA — A1781105?

Yes. This is the factory-specified OEM fitting for the Goodman AMVM971205DNAA — 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 AMVM971205DNAA — 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.

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