Dometic DFMD25131 Rear-Gas Furnace Parts Breakdown

This DFMD25131 guide follows the rear-gas fitting configuration of the 25K medium furnace. Use the parts table to identify the extended manifold, standard door options, burner, ignition and motor components shown in the family illustration.

Use the diagram callouts to find the original manufacturer number in the table below. Select a linked part number for product details and availability. Check the full furnace model, serial-number range and any replacement notes before ordering.

Parts pictured in this guide

Select an image for product details, or jump to the numbered diagram and parts list. Match the part number and furnace model before ordering.

Atwood 30335 AFMD25 Furnace Circuit Breaker - 10 AmpPart 30335 · Drawing reference 4501

Atwood / Dometic 35100 Small Furnace Ignition Electrode Kit - AFMDPart 35100 · Drawing reference 4510

Atwood 31501 12V DSI Furnace Ignition Board With Fan ControlPart 31501 · Drawing reference 4541

Dometic 30722 Furnace Blower Motor Kit for AFMD25/30Part 30722 · Drawing reference 4549

Atwood 31091 190°F RV Furnace High-Limit Safety SwitchPart 31091 · Drawing reference 4560

Dometic 36688 Atwood 2-Inch RV Furnace Duct AdapterPart 36688 · Drawing reference 4575

Atwood 31474 Aluminum 4-Inch RV Furnace Duct CollarPart 31474 · Drawing reference 4576

Dometic 31361 4-Inch RV Furnace Duct Knockout Cover PlatePart 31361 · Drawing reference 4577

Atwood 30268 LP-Gas Furnace Burner HeadPart 30268 · Drawing reference 4581

Atwood 32611 Medium-Series Black Furnace Door BezelPart 32611 · Drawing reference 4738

Dometic 33056 Furnace Medium Access Door AssemblyPart 33056 · Drawing reference 4742

Dometic 33057 Arctic White Medium Mojave Furnace Access DoorPart 33057 · Drawing reference 4743

Dometic 32300 Black 12V Heat-Only RV Furnace ThermostatPart 32300 · Drawing reference 4755

Dometic 38453 White HFH-2000 RV Furnace ThermostatPart 38453 · Drawing reference 4757

Original Dometic reference parts for DFMD25131