Use this Atwood Excalibur 8940-IIIAC 40,000 BTU furnace parts breakdown to identify replacement AC motors, gas valves, ignition boards, sail switches, thermostats, blower wheels, electrodes, transformers, duct adapters, limit switches and other OEM RV furnace service parts.

Atwood Excalibur 8940-IIIAC Parts List

Reference # Mfg Part Number Qty Description
1 31017 1 KLIXON TIME DELAY RELAY
2 31030 1 T-STAT - BEIGE USE 38452
2 38452 1 T-STAT HEAT ONLY - BROWN
2 36684 1 T-STAT, WHITE USE 38453
2 38453 1 THERMOSTAT HEAT ONLY - WHITE
3 31361 1 DUCT COVER PLATE, 4 INCH
4 31474 1 DUCT ADAPTER 4 INCH
5 34004 1 ORIFICE #49 LP-40,000 BTU
5 34092 1 BURNER ORIFICE #30 NAT GAS
6 37107 1 COMBUSTION WHEEL USE 33128
6 33128 1 COMBUSTION AIR WHEEL
7 32841 1 MOTOR GASKET
8 34515 1 REPLACEMENT VALVE COIL - AC
9 36376 1 MANIFOLD INLET - (Before S/N 0657716)
9 37392 1 MANIFOLD OUTLET - (After S/N 0657715)
NS 31043 1 INLET FITTING, MALE BRASS 3/8X3/8
10 33567 1 GAS INLET PLUG
10 37410 1 GAS INLET PLUG - (After S/N 0657715)
11 33729 1 SLIDE PLATE - NLA
11 37442 1 SLIDE PLATE - (After S/N 0657715)
14 33854 1 RECESSED DOOR PANEL CW
16 34006 1 GAS VALVE - AC - (Before S/N 0657716)
16 37384 1 VALVE W/R 25M18-711 USE 38603 - (After S/N 0657715)
16 38603 1 GAS VALVE, SIDE OUTLET 24VAC COIL - (After S/N 0657715)
17 34014 1 BLOWER HOUSING COVER - OUTSIDE
18 35137 1 SAIL SWITCH USE 37716
18 37716 1 SAIL SWITCH USE 36680
18 36680 1 SAIL SWITCH USE 31377
18 31377 1 SAIL SWITCH
20 35791 1 HYDRO FLAME 5AMP BREAKER
23 34037 1 JUNCTION BOX ASSY AC
24 34039 1 MOTOR CAPACITOR AC
25 34053 1 GASKET, EXHAUST WALL - (Before S/N 1259907)
25 37956 1 GASKET, HEATING ELEMENT - (After S/N 1259906)
28 34515 1 REPLACEMENT VALVE COIL - AC
29 34550 1 BLOWER WHEEL USE 34099
29 34099 1 BLOWER WHEEL
30 32172 1 DSI ELECTRODE GASKET-DUAL SENSE
30 37100 1 SINGLE SENSE ELECTRODE GASKET
30 37057 1 SINGLE SENSE ELECTRODE USE 34570
30 34570 1 SINGLE SENSE ELECTRODE W/LEAD
30 36997 1 ELECTRODE-DUAL SENSE
31 36205 1 THERMAL CUT OFF 89-II
31 37021 1 LIMIT SWITCH, 170 DEGREE
32 35491 1 BURNER ASSY USE 30209
32 30209 1 BURNER HEAD, LP/NAT GAS
33 34976 1 HEAT ELEMENT
34 35119 1 FENWALL DSI BOARD AC USE 37515
34 37515 1 DSI BOARD - AC
NS 33686 1 IGNITION BOARD BRACKET USE 34541
NS 34541 1 BRACKET DSI DC MOUNT
35 35121 1 TRANSFORMER AC89 USE 33784
35 33784 1 24 VAC TRANSFORMER
36 35122 1 MOTOR AC
37 35193 1 HIGH TENSION LEAD USE 34571 - (Before S/N 0657716)
37 34571 1 KIT, LD2 HIGH TENSION LEADS - (Before S/N 0657716)
37 37419 1 HIGH TENSION WIRE - (After S/N 0657715)
39 36895 1 DRAFT CAP ASSY AC
40 33653 1 BOTTOM PLENUM PLATE
40 34551 1 BOTTOM DISCHARGE GASKET
41 33754 1 DOOR ASSY, DELUXE, 02, COLONIAL WHITE
41 33756 1 DOOR ASSY, DELUXE, 04. POLAR WHITE
42 33647 1 BURNER BOX ASSY
43 33847 1 DOOR CATCH SCREW TYPE (2PK)
44 33851 1 RECESS PAN BRACKET
45 34084 1 RAIN SHIELD
NS 36121 1 ON-OFF SWITCH USE 31092
NS 31092 1 ON/OFF SWITCH KIT
NS 37443 1 WIRING HARNESS COMPLETE AC
Need help finding the correct Atwood Excalibur 8940-IIIAC furnace part?
Click any manufacturer part number above to search our inventory. If you cannot find the part you need, contact us with your furnace model number, serial number and part number.

Recently viewed

New & Updated RV Parts Inventory — Check Back Often

We’re always adding new and used RV parts to our inventory, so be sure to check back regularly.

If you don’t see the part you need today, we may still have it in stock—our internal database includes thousands of new RV parts that are not yet listed online.

Text or email us with the product number or model, and we’ll check availability for you right away.

Our Products

RV Parts Newsletter

Sign up for upcoming promotions!