IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman A1781105 is a genuine OEM 1-piece vinyl cap fitting engineered for the AMVS960603BUAA gas furnace and compatible Goodman/Amana models. These protective vinyl caps seal open ports, tube ends, and fittings to keep dust, moisture, and debris out during service or storage — a small part that protects far more expensive components downstream.
Generic vinyl caps may not match the exact port diameter or wall thickness, leading to loose fits or caps that fall off during handling. This genuine Goodman fitting is molded to factory tolerances for a secure, correct seal. When you want a guaranteed fit the first time, OEM is the safe choice for a low-cost consumable like this.
Easy (1/5) — No tools required. Simply press the cap onto the target fitting or port. No system power-down or refrigerant handling involved for the cap itself; follow your unit's service manual for the surrounding component.
Order genuine Goodman parts with confidence. Questions about compatibility? Contact us at info@nationalhvacparts.com before ordering.