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Stihl 4126 · Section F · 6 of 14 · 37 parts

Carburetor WT-45A

Fits FS 88.

Position

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Parts (37)

PosPart numberDescriptionQty
1 1110 121 5100 Inlet needle 1
2 1120 122 3001 Spring 1
3 1113 121 9200 Spindle 1
4 1113 121 5000 Inlet control lever 1
5 1114 122 7400 Round head screw 1
6 1120 121 5405 Valve jet 1
7 4117 122 9402 Plug 1
8 1120 121 5801 Pump piston 1
9 1120 122 3600 NLA Sealing ring 1
10 1120 121 2402 Spring 1
11 1120 129 0900 Gasket 1
12 1113 121 4705 Metering diaphragm 1
13 1113 121 0800 End cover 1
14 1106 122 7400 Round head screw 4
15 4117 122 3007 Spring 1
16 1120 122 6705 High speed adjustment screw 1
17 1115 122 3002 Spring 1
18 4119 122 6801 Low speed adjustment screw 1
19 4117 122 3006 Spring 1
20 4117 122 6200 Idle speed adjustment screw 1
21 4117 122 3200 Torsion spring 1
22 4117 120 7100 Throttle shaft with lever 1
23 4117 121 8900 Pin 1
24 1117 122 9000 E-clip 1
25 4117 121 3300 Throttle shutter 1
26 1110 122 7400 Round head screw 1
27 1114 121 7800 Strainer 1
28 1120 121 4805 Pump diaphragm 1
29 1120 129 0905 Gasket 1
30 4126 121 0800 End cover 1
31 1114 122 7100 Screw 1
32 1116 122 3000 Spring 1
33 1116 122 4200 Ball 1
34 4117 121 2900 Choke shutter 1
35 4126 121 3000 Choke shaft 1
Not numbered on the diagram — assemblies, kits and options
4126 120 0610 Carburetor WT-45A 1
4117 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 NLA = withdrawn by STIHL before 2012.

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