STIHL Parts & Spec Guide Unofficial
← Edgers · series 4140

Stihl 4140 · Section A · 1 of 15 · 21 parts

Crankcase, Cylinder

Fits MM 55, MM 55 C.

Position —

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Parts (21)

PosPart numberDescriptionQty
1 4140 021 0300 Crankcase 1
2 9639 003 1230 Oil seal 12x22x7 2
3 9503 003 0246 Grooved ball bearing 6201 2
4 4140 036 0300 Washer 2
5 4140 030 0401 Crankshaft 1
6 4140 029 2300 Cylinder gasket 1
7 4140 021 2500 Engine pan 1
8 4140 020 1202 Cylinder with piston Ø 34 mm 1
9 4140 030 2000 Piston Ø 34 mm 1
10 4137 034 3000 Piston ring Ø 34x1.5 mm 2
11 9463 650 0807 Snap ring 8x0.7 2
12 4137 034 1500 Piston pin 8x5x22 1
13 9075 478 4268 Pan head self-tapping screw IS-D5x60 4
14 4140 195 0601 Starter cup 1
15 4140 190 2010 Driver 1
16 0000 998 0612 Torsion spring 2
17 4133 195 7201 Pawl 2
18 0000 400 7000 Spark plug NGK BPMR7A 1
19 1110 400 7005 Spark plug Bosch WSR 6 F 1
20 0783 830 2000 Tube of sealant Dirko HT red option 1
Not numbered on the diagram — assemblies, kits and options
— 4140 007 1050 Set of gaskets option 1

2012 service parts catalogue. Parts are not interchangeable across engine series — check yours before ordering.

Wrong number or missing part for the MM 55, MM 55 C? Report a correction →