Stihl 4203 · Section D · 4 of 13 · 43 parts
Carburetor HD-28A, HD-29, HD-45
Fits BR 340, BR 340 L, BR 380, BR 420, BR 420 C.
Parts (43)
| Pos | Part number | Description | Qty |
|---|---|---|---|
| 1 | 4116 121 5100 | Inlet needle | 1 |
| 2 | 4116 122 3000 | Spring | 1 |
| 3 | 1113 121 9200 | Spindle | 1 |
| 4 | 4116 121 5000 | Inlet control lever | 1 |
| 5 | 1114 122 7400 | Round head screw | 1 |
| 6 | 4203 121 5400 | Valve jet 0.52 | 1 |
| 7 | 4117 122 9402 | Plug | 1 |
| 8 | 4116 129 0901 | Gasket | 1 |
| 9 | 4116 121 4700 | Metering diaphragm | 1 |
| 10 | 4203 121 0802 | End cover | 1 |
| 11 | 1121 122 7101 | Screw | 4 |
| 12 | 1114 121 7800 | Strainer | 1 |
| 13 | 4116 121 4800 | Pump diaphragm | 1 |
| 14 | 4203 129 0902 | Gasket | 1 |
| 15 | 4203 121 0800 | End cover | 1 |
| 16 | 1114 122 7100 | Screw | 1 |
| 18 | 4117 122 6200 | Idle speed adjustment screw | 1 |
| 19 | 4116 120 7100 | Throttle shaft with lever | 1 |
| 20 | 4116 122 3200 | Torsion spring | 1 |
| 21 | 4116 121 3300 | Throttle shutter | 1 |
| 22 | 1115 122 7400 | Round head screw | 2 |
| 24 | 4203 123 7300 | Lever | 1 |
| 25 | 1110 122 7400 | Round head screw | 1 |
| 26 | 4215 121 8600 | Washer | 1 |
| 27 | 4215 121 8900 | Pin | 1 |
| 28 | 1117 122 9000 | E-clip | 1 |
| 29 | 1116 122 3000 | Spring | 1 |
| 30 | 1116 122 4200 | Ball | 1 |
| 31 | 4203 121 3001 | Choke shaft | 1 |
| 32 | 4116 121 2900 | Choke shutter | 1 |
| 33 | 4117 122 3006 | Spring | 1 |
| 34 | 1128 122 3003 | Spring | 2 |
| 35 | 4203 122 6704 NLA | High speed adjustment screw | 1 |
| 36 | 4203 122 6805 NLA | Low speed adjustment screw | 1 |
| 37 | 4203 122 3600 | Sealing ring | 1 |
| 38 | 4203 122 6703 | High speed adjustment screw | 1 |
| 39 | 4203 122 6804 | Low speed adjustment screw | 1 |
| 40 | 4203 121 2700 | Cap | 2 |
| 41 | 5910 890 4500 | Puller option | 1 |
| Not numbered on the diagram — assemblies, kits and options | |||
| — | 4203 120 0610 | Carburetor HD-45 | 1 |
| — | not sold separately | Carburetor HD-28A no longer available from factory | 1 |
| — | not sold separately | Carburetor HD-29 no longer available from factory | 1 |
| — | 4116 007 1061 | Set of carburetor parts | 1 |
2012 service parts catalogue. Parts are not interchangeable across engine series — check yours before ordering. NLA = withdrawn by STIHL before 2012.
Wrong number or missing part for the BR 340, BR 340 L, BR 380, BR 420, BR 420 C? Report a correction →