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Goodman

OEM Goodman Vinyl Protective Caps (1-Piece) for ACSS960402BNAA — A1781105

SKU: GOODMAN-2403 Brand: Goodman
$6.95 $9.38

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

Protect open ports and fittings with the genuine Goodman A1781105 1-Piece Vinyl Cap. This OEM accessory is used on the Goodman/Amana ACSS960402BNAA 96% AFUE gas furnace to cap unused line ports, threaded fittings, and tubing connections — keeping out dust, debris, and moisture during shipping, storage, and installation.

  • Part Number: A1781105
  • Type: Vinyl protective cap (1-piece)
  • Use: Sealing unused ports, fittings, and tube ends
  • Material: Flexible, weather-resistant vinyl
  • Fits: Goodman/Amana ACSS960402BNAA and compatible equipment

OEM vs. Generic: The A1781105 is molded to the exact fitting sizes used on your Goodman furnace, so it seats fully and stays put. Loose-fitting hardware-store caps can pop off in transit or vibration, leaving ports exposed to contamination. For a clean, professional install and proper protection, the OEM cap is the right call.

Install Difficulty: Very Easy (1/5). No tools required — simply push the cap onto the port or fitting until seated. Remove only when you're ready to connect that line, and retain spare caps for any ports that remain unused after installation.

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 ACSS960402BNAA — A1781105?
Yes. This is the factory-specified OEM fitting for the Goodman ACSS960402BNAA — 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 ACSS960402BNAA — 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