Stihl 4180 · Assembly · 6 of 18 · 43 parts
I - Carburetor
Fits FS 91 R-Z.
Source: 03-2025 (United States, English) · FS 91 R-Z · PDF page 16. Check this exact variant and the row remarks before ordering.
Parts (43)
| Pos | Part number | Description | Qty |
|---|---|---|---|
| 1 | 4180 120 0618 | Carburetor 4180/18 Contains item(s): 2 - 41 | 1 |
| 2 | 4180 120 7107 | Throttle shaft with lever | 1 |
| 3 | 4180 122 3007 | Spring | 1 |
| 4 | 4180 121 8601 | Washer | 2 |
| 5 | 4180 122 3601 | Sealing ring | 1 |
| 6 | 4180 121 3300 | Throttle shutter | 1 |
| 7 | 1125 122 7403 | Round head screw | 2 |
| 8 | 1125 122 9001 | E-clip | 1 |
| 9 | Z000 042 K001 | Choke lever kit Contains item(s): 10, 11 | 1 |
| 10 | 0000 997 3101 | Compression spring | 1 |
| 11 | 1120 122 6601 | Collar screw | 1 |
| 12 | 4180 121 3005 | Choke shaft | 1 |
| 13 | 4282 122 9000 | E-clip | 1 |
| 14 | 4180 121 6601 | Lever | 1 |
| 15 | 4180 121 2901 | Choke shutter | 1 |
| 16 | 4180 122 3601 | Sealing ring | 1 |
| 17 | 4180 122 3008 | Spring | 1 |
| 18 | 4147 122 9001 | E-clip | 1 |
| 19 | Z010 035 A005 | Idle speed screw assy | 1 |
| 20 | 1125 122 4200 | Clamp | 1 |
| 21 | 4180 122 6706 | High speed screw | 1 |
| 22 | 4180 122 6805 | Low speed screw | 1 |
| 23 | 1123 121 7800 | Strainer | 1 |
| 24 | 4180 121 4802 | Pump diaphragm | 1 |
| 25 | 4180 129 0908 | Pump gasket | 1 |
| 26 | 4180 121 8602 | Washer | 1 |
| 27 | 4180 122 3006 | Spring | 1 |
| 28 | 4180 121 0803 | End cover | 1 |
| 29 | 4242 122 7100 | Screw | 2 |
| 30 | Z000 018 Z000 | Inlet needle | 1 |
| 31 | 1120 122 3004 | Spring | 1 |
| 32 | 4229 121 5000 | Inlet control lever | 1 |
| 33 | 1120 121 9200 | Spindle | 1 |
| 34 | 0000 122 7101 | Screw | 1 |
| 35 | 1141 129 0900 | Metering gasket | 1 |
| 36 | 1141 121 4730 | Metering diaphragm | 1 |
| 37 | 4180 120 2209 | Flange | 1 |
| 38 | 4226 121 2700 | Cap | 1 |
| 39 | 4140 121 0800 | End cover | 1 |
| 40 | 4140 122 7100 | Screw | 4 |
| 41 | 4180 120 9704 | Pump piston kit | 1 |
| 42 | 4180 007 1035 | Set of carburetor parts Contains item(s): 24, 25, 35, 36 | 1 |
| 43 | Z010 001 K017 | Carburetor Repair Kit RB-287 Contains item(s): 23 - 25, 30 - 33, 35, 36 | 1 |
Parts are not interchangeable across engine series — check yours before ordering.
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