33431 Atwood/Dometic OEM Hydro Flame Furnace BLOWER WHEEL 79-I, 80-I

Atwood / Dometic 33431 Hydro Flame Blower Wheel — 79‑I / 80‑I Furnaces The 33431 blower wheel is the OEM room‑air wheel used in Atwood/Dometic Hydro Flame 79‑I and 80‑I series furnaces. This wheel restores proper airflow, reduces vibration, and ensures quiet, efficient heating performance. Features the correct 4‑7/8" diameter, 3‑1/2" width, and 1/4" D‑shaped bore for a perfect fit on FA 79D, FA 79P, HF 80D, HF 80P, and related models.

The Atwood 33431 Blower Wheel is the factory indoor (room‑air) squirrel‑cage wheel used in Hydro Flame 79‑I and 80‑I model furnaces. It mounts to the blower motor shaft and pushes heated air across the heat exchanger and into the RV cabin.

• Diameter: 4‑7/8"

• Width: 3‑1/2"

• Bore: 1/4" D‑shaped hub

• Material: OEM plastic

• Function: Room‑air circulation (NOT combustion air)

🔥 Confirmed Compatibility

All three sources confirm this wheel fits the Atwood Hydro Flame 79‑I / 80‑I furnace family, including:

• FA 79D

• FA 79P

• HF 80D

• HF 80P

• 8012‑II (listed by PDX RV Wholesale)

Primary compatibility statement:

“Furnace Blower Wheel; For Atwood 79‑I/80‑I Model Hydroflame Furnace”

🛠️ Symptoms This Wheel Fixes

• Weak airflow

• Rattling, scraping, or vibration

• Furnace overheating / limit trips

• Cracked or warped blower wheel

• Wheel slipping on shaft (D‑bore wear)