What are the specs for this Fitting?

The correct replacement for Goodman model VCES960403BNAA 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 VCES960403BNAA Furnace — 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 1-Piece Vinyl Cap for VCES960403BNAA Furnace — A1781105

Name: OEM Goodman 1-Piece Vinyl Cap for VCES960403BNAA Furnace — A1781105
Brand: Goodman
SKU: GOODMAN-13421
Price: 1.95 USD
Availability: InStock

SKU: GOODMAN-13421 Brand: Goodman

$1.95 $2.59

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Texas CMBL #19328542014

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The Goodman A1781105 1-Piece Vinyl Cap is a genuine OEM protective cap used throughout the VCES960403BNAA gas furnace to seal unused tubing ports, pressure taps, and manifold fittings. Though small, these caps keep the sealed-combustion pressure system intact — a missing or brittle cap can cause air leaks that trip the pressure switch or throw off draft-inducer readings. Replacing degraded caps with the factory part keeps the furnace operating within spec.

Specifications

OEM Part Number: A1781105
Part Type: 1-Piece Vinyl Cap / Port Plug
Compatible Model: VCES960403BNAA (Goodman gas furnace)
Material: Flexible vinyl
Configuration: Single-piece push-on cap
Function: Seals unused ports and protects tubing connections

OEM vs. Generic

The OEM Goodman vinyl cap is molded to the exact inner diameter of the furnace's ports for a snug, air-tight friction fit. Generic caps in a mixed assortment often sit loose or too tight, leading to slow air leaks or split vinyl. At this price point, the correct OEM part removes any guesswork.

Installation Difficulty

Very Easy (1 of 5). Push-on installation takes under a minute — no tools required. Remove the old or missing cap and press the new one firmly over the port until fully seated. A great inexpensive item to keep on hand during any furnace service.

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 Fitting fit my Goodman VCES960403BNAA Furnace — A1781105?

Yes. This is the factory-specified OEM fitting for the Goodman VCES960403BNAA 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 fitting on my Goodman VCES960403BNAA 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 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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