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Goodman

OEM Goodman 1-Piece Vinyl Cap Set for VCES961005CNAA — A1781105

SKU: GOODMAN-13454 Brand: Goodman
$1.95 $2.95

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Texas CMBL #19328542014
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Goodman A1781105 1-Piece Vinyl Caps

The A1781105 is a genuine OEM 1-piece vinyl cap used on Goodman VCES961005CNAA gas furnaces to seal unused ports, protect fittings, and cap off connection points during installation and service. Though small, these caps keep debris, insects, and moisture out of open tubing and maintain the correct pressure integrity of the furnace's venting and sensing lines.

Specifications

  • Part Number: A1781105 (OEM Goodman)
  • Type: 1-piece vinyl protective cap / plug
  • Material: Flexible vinyl
  • Use: Seals unused ports and fitting stubs
  • Fit: Goodman VCES961005CNAA furnace
  • Equipment: Gas Furnace

OEM vs. Generic

OEM vinyl caps are sized to the precise port diameters found on Goodman furnaces, giving a snug, secure seal. Generic hardware-store caps may fit loosely and pop off under vibration or pressure. For a reliable seal, the factory-spec cap is the safe pick — and at this price there's no reason to compromise.

Install Difficulty

Very Easy — under 5 minutes. Simply push the cap over the intended port or fitting until fully seated. No tools required. A must-have consumable to keep on hand during furnace maintenance.

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

Frequently Asked Questions

Does this Fitting fit my Goodman VCES961005CNAA — A1781105?
Yes. This is the factory-specified OEM fitting for the Goodman VCES961005CNAA — 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 VCES961005CNAA — 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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Mike Rivera
HVAC Parts Specialist — Online