The original 8535-I Excalibur furnace drawing contains factory references for the larger 34,000 BTU unit. Use the numbered parts table for the blower, gas burner, motor, door and ignition components rather than assuming the 8531-I uses the same orifice or other hardware.
Use the original drawing reference to identify the manufacturer number. Select a linked manufacturer number for product details and availability. Check the furnace model, serial number and any replacement notes before ordering.
Original manufacturer parts for 8535-I
| Drawing reference | Manufacturer part number | Quantity | Component details |
|---|---|---|---|
| 1 | 32775 | 1 | BLOWER WHEEL |
| 2 | 32774 | 1 | MOTOR PF23175Q USE 30130 |
| 2 | 30130 | 1 | MOTOR |
| 3 | 37360 | 1 | MOTOR BRACKET |
| 4 | 37107 | 1 | COMBUSTION WHEEL USE 33128 |
| 4 | 33128 | 1 | COMBUSTION AIR WHEEL |
| 5 | 33475 | 1 | REPLACEMENT VALVE COIL - DC USE 31000 |
| 5 | 31000 | 1 | COIL, WHITE ROGERS DC |
| 6 | 32815 | 1 | MOTOR MOUNTING WALL |
| 7 | 32841 | 1 | MOTOR GASKET |
| 8 | 35102 | 1 | DOOR ASSY, DELUXE, 23 |
| 9 | 32853 | 1 | BLOWER HOUSING COVER |
| 10 | 33224 | 1 | MOTOR WALL BRASS FITTINGS |
| 11 | 33774 | 1 | DOOR LATCH (1/4 TURN), 2 PK |
| 12 | 33124 | 1 | COMBUSTION WHEEL AND CLAMP - NOT AVAILABLE FOR THIS MODEL |
| 14 | 33129 | 1 | DOOR HINGE CLIP |
| 15 | 31030 | 1 | T-STAT - BEIGE USE 38452 |
| 15 | 38452 | 1 | T-STAT HEAT ONLY - BROWN |
| 15 | 38453 | 1 | THERMOSTAT HEAT ONLY - WHITE |
| 16 | 32813 | 1 | BURNER BOX ASSY |
| 17 | 32811 | 1 | BURNER ASSY - NLA |
| 18 | 32285 | 1 | ORIFICE #51 LP-35,000 BTU |
| 19 | 32793 | 1 | FENWAL ELECTRODE |
| 19 | 33625 | 1 | ELECTRODE KIT - DUAL SENSE |
| 20 | 33751 | 1 | CIRCUIT BREAKER 7-AMP |
| 21 | 31017 | 1 | KLIXON TIME DELAY RELAY |
| 22 | 32962 | 1 | HIGH TENSION LEAD WIRE |
| 23 | 32897 | 1 | BOTTOM GASKET (5IN X 10IN) |
| 24 | 32884 | 1 | TOP/BOTTOM PLENUM PLATE |
| 26 | 32266 | 1 | BOTTOM PLENUM PLATE |
| 28 | 3226 | 1 | ITT BOARD |
| 30 | 32820 | 1 | ELECTRICAL PANEL ASSY |
| 31 | 32821 | 1 | ELECTRICAL WIRING ASSY |
| 32 | 32921 | 1 | ELECTRICAL FIELD HOOK-UP |
| 33 | 33223 | 1 | VALVE, BRASS FITTING |
| 34 | 35282 | 1 | SAIL SWITCH |
| 36 | 32878 | 1 | WHITE ROGERS VALVE BRACKET |
| 37 | 32926 | 1 | GASKET, HEATING ELEMENT |
| 38 | 31025 | 1 | LIMIT 190 SWITCH W\PLATE |
| 39 | 33337 | 1 | WHITE ROGERS VALVE USE 38607 |
| 39 | 38607 | 1 | GAS VALVE USE 31155 |
| 39 | 31155 | 1 | KIT, VALVE STRAIGHT, 12VDC WHITE-RODGERS |
| 40 | 32856 | 1 | BOTTOM DISCHARGE COVER |
| 41 | 32808 | 1 | HEATING ELEMENT |
| 42 | 33116 | 1 | MANIFOLD, LEFT SIDE |
| 43 | 33137 | 1 | DRAFT ASSY |
| 44 | 32882 | 1 | DOOR SCREEN INSERT |
| 45 | 32809 | 1 | CASTING ASSY |
| 46 | 32994 | 1 | BEZEL DRIP EDGE |
| 51 | 33115 | 1 | MANIFOLD RIGHT SIDE |
| 59 | 31257 | 1 | BURNER ORIFICE #56 |
| 69 | 31474 | 1 | DUCT ADAPTER 4 INCH |
| 94 | 31361 | 1 | DUCT COVER PLATE, 4 INCH |
| 210 | 32260 | 1 | BOTTOM GASKET (4IN X 11IN) |
| 255 | 32266 | 1 | BOTTOM PLENUM PLATE |
Replacement parts pictured at NewRVParts
These product listings match manufacturer numbers linked in the parts diagram. Confirm the exact furnace model, serial range and component version before ordering. Current availability appears on the product listing.
Diagram ref 69 · MPN 31474
Atwood 31474 Aluminum 4-Inch RV Furnace Duct Collar
View product and availability