What are the specs for this Cap?

The correct replacement for Goodman model VCES960603BNAA Furnace — 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 VCES960603BNAA Furnace — A1781105.

What symptoms indicate I need a new cap?

Common symptoms that indicate you need a new cap include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

Is this cap 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 1-Piece Vinyl Cap for VCES960603BNAA Furnace — A1781105

Name: OEM Goodman 1-Piece Vinyl Cap for VCES960603BNAA Furnace — A1781105
Brand: Goodman
SKU: GOODMAN-13431
Price: 1.95 USD
Availability: InStock

SKU: GOODMAN-13431 Brand: Goodman

$1.95 $2.59

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The Goodman A1781105 one-piece vinyl cap is a genuine OEM component used on the VCES960603BNAA gas furnace to seal an unused knockout, drain port, or accessory opening. Though inexpensive, these caps play a real role in furnace performance: an unsealed or missing cap allows air infiltration that can disrupt cabinet pressure, affect condensate routing, and trigger pressure-switch sensitivity. Replacing a lost or brittle cap restores the factory seal.

Part number: A1781105
Type: One-piece push-in vinyl cap/plug
Fits: Goodman VCES960603BNAA and compatible furnace models
Function: Seals unused ports and cabinet openings
Material: Flexible vinyl
Equipment: Gas furnace

OEM vs. Generic: The genuine Goodman cap is sized to the exact port diameter for a snug, airtight press fit. Generic vinyl caps come in assortment packs but often fit loose or too tight, and an imperfect seal on a condensing furnace can cause the very air-leak and pressure issues you're trying to avoid. The OEM part guarantees the correct fit the first time.

Install difficulty: Very easy (1 of 5). Simply press the cap into the intended port by hand — no tools required. Replacement takes under a minute.

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 1-Piece Vinyl Cap fo...

$1.95

Frequently Asked Questions

Does this Cap fit my Goodman VCES960603BNAA Furnace — A1781105?

Yes. This is the factory-specified OEM cap for the Goodman VCES960603BNAA Furnace — 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 VCES960603BNAA Furnace — 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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OEM Goodman 1-Piece Vinyl Cap for VCES960603BNAA Furnace — A1781105

Shipping Information

Return Policy

Frequently Asked Questions