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Goodman

OEM Goodman 1-Piece Vinyl Cap for AMEC960804CNAC — A1781105

SKU: GOODMAN-4257 Brand: Goodman
$1.95 $2.59

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Goodman A1781105 1-Piece Vinyl Cap is a genuine OEM protective cap used on the AMEC960804CNAC gas furnace and other compatible Goodman/Amana equipment. These vinyl caps seal unused knockouts, wiring access holes, and port openings in the furnace cabinet, keeping out dust, debris, and small pests while giving the cabinet a clean, finished appearance. Over time, original caps can dry out, crack, or go missing during service — this exact-fit replacement restores a proper seal.

  • OEM Part Number: A1781105
  • Type: 1-piece press-in vinyl cap / hole plug
  • Function: Seals unused cabinet holes & ports
  • Compatibility: Goodman & Amana furnaces incl. AMEC960804CNAC
  • Material: Flexible molded vinyl

OEM vs. Generic: The genuine A1781105 cap is sized to the furnace's exact hole diameter for a snug, secure press-fit that won't pop out. Generic rubber or vinyl plugs are widely available and cheaper in bulk, but a loose or oversized plug can fall out or fail to seal properly. For a factory-matched fit, choose OEM.

Installation Difficulty: Very Easy (under 2 minutes, no tools). Simply press the cap firmly into the open hole until it seats flush. No power-down or tools required for this non-electrical component, though it's good practice to service the unit safely.

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 Cap fit my Goodman AMEC960804CNAC — A1781105?
Yes. This is the factory-specified OEM cap for the Goodman AMEC960804CNAC — 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 cap on my Goodman AMEC960804CNAC — 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 cap?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this cap 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 cap?
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
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