The SH42F furnace guide follows numbered housing, combustion and blower-control illustrations, with corresponding parts information below each drawing.
Select a linked manufacturer part number to view product details and availability. Check the furnace model and any serial-number restrictions before ordering.
See parts referenced in this guide
These photos are from the linked NewRVParts listings. Compare the part number and installed component before ordering.
1. Cabinet and duct fittings
| Reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| 1 | 101907 | 1 | CABINET FRONT ASSY |
| 2 | 161154 | 1 | THERMOSTAT, WALL (WHITE) |
| 5 | 101921 | 1 | CABINET ASSEMBLY |
| 5 | 63457 | 1 | BRACE, SIDE MOUNTING - (ITEM 5C) |
| 5 | 63459 | 1 | BRACKET, MOUNTING - (ITEM 5B) |
| 6 | 50733 | 1 | COVER, DUCT |
| 7 | 50715 | 1 | DUCT COLLAR, 4 IN. |
2. Burner, manifold and gas valve
| Reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| 9 | 171599 | 1 | MANIFOLD ASSY |
| 11 | 180309 | 1 | ORIFICE #50 METRIC THREADS |
| 12 | 70811 | 1 | GASKET, BURNER ACCESS |
| 12 | 525010 | 1 | SERVICE. KIT, GASKET, BURNER, ACCESS COVER |
| 12 | 71263 | 1 | GASKET, BURNER ACCESS COVER - Above Serial# 094101431 |
| 12 | 525031 | 1 | SERVICE KIT, GASKET BURNER ACCESS COVER - Above Serial# 094101431 |
| 13 | 121704 | 1 | PLATE, TINNERMAN |
| 14 | 63198 | 1 | PLATE, SECONDARY (BACK) |
| 15 | 121651 | 1 | SCREW 8-18 X 1/2 |
| 16 | 62933 | 1 | PLATE, SECONDARY AIR (FRONT) |
| 19 | 62935 | 1 | PLATE, SECONDARY AIR, BOTTOM |
| 22 | 232286 | 1 | ELECTRODE, SINGLE PROBE W/ WIRE (L SHAPE) |
| 22 | 525009 | 1 | SERVICE KIT, ELECTRODE W/GROMMET (L SHAPE) |
| 23 | 10799 | 1 | BURNER ASSY, MAIN |
| 24 | 70963 | 1 | GROMMET |
| 26 | 161122 | 1 | GAS VALVE, 3/8 INLET NPT X 3/8 INVERTED OUTLET |
| 27 | 171576 | 1 | PIPE ASSY, GAS INLET |
| 29 | 62180 | 1 | CLAMP, WIRE |
3. Vent, blower and ignition assemblies
| Reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| 31 | 260231 | 1 | VENT CAP & EXHAUST TUBE ASSY |
| 33 | 280582 | 1 | RAIN SHIELD |
| 34 | 51430BK | 1 | BOX ASSY, AIR INTAKE |
| 35 | 71108 | 1 | GASKET, CUMBUSTION AIR HOUSING |
| 36 | 350199 | 1 | WHEEL, COMBUSTION AIR |
| 37 | 390862BK | 1 | CUMBUSTION AIR HOUSING |
| 37 | 62949 | 1 | BRACKET, SPACER |
| 39 | 71085 | 1 | MOTOR GASKET |
| 39 | 71107 | 1 | GASKET, FIREWALL COMBUSTION AIR |
| 40 | 232726 | 1 | MOTOR ASSY |
| 41 | 121951 | 2 | NUT #2-56 |
| 43 | 121247 | 2 | SCREW, 2-56 X 5/8 HEX |
| 44 | 232261 | 1 | SWITCH, SAIL USE 233382 |
| 44 | 233382 | 1 | SAIL SWITCH |
| 44 | 525003 | 1 | SERVICE KIT, SAIL SWITCH |
| 46 | 390867BK | 1 | BLOWER ASSY, ROOM AIR |
| 47 | 350198 | 1 | WHEEL, ROOM AIR METAL |
| 50 | 232351 | 1 | ON/OFF SWITCH |
| 52 | 101663 | 1 | PANEL ASSY, MODULE BOARD |
| 53 | 70807 | 1 | INSULATOR, MODULE BOARD |
| 54 | 520820 | 1 | MODULE BOARD, WAS SUPERCEEDED USE 521099 |
| 54 | 521099 | 1 | IGNITION CONTROL MODULE |
| 55 | 70973 | 1 | INSULATOR CAP, MODULE BOARD COIL |
| 57 | 70362 | 1 | BUSHING, SNAP |
| 58 | 71206 | 1 | BUSHING, STRAIN RELIEF |
| 59 | 70808 | 1 | GASKET, FIREWALL CHAMBER |
| 61 | 21172BK | 1 | CHAMBER ASSY, FINAL |
| 63 | 232735 | 1 | LIMIT SWITCH 175 DEGREE |
| 65 | 110768 | 1 | FIREWALL |
| 66 | 52013 | 1 | TUBE ASSEMBLY INTAKE (VENT) |