Stihl 1140 · Section B · 2 of 11 · 24 parts

Cylinder, Muffler

Fits MS 311, MS 391.

This drawing carries 2 bore sizes — Ø 47 mm = 59.0 cc (MS 362, MS 362 C-Q, MS 362 C-M, MS 311), Ø 49 mm = 64.1 cc (MS 391). Not interchangeable — measure your cylinder before ordering.

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Parts (24)

Pos	Part number	Description	Qty
1	1140 020 1201	Cylinder with piston Ø 47 mm — MS 362, MS 362 C-Q, MS 362 C-M, MS 311	1
2	1140 020 1202	Cylinder with piston Ø 49 mm — MS 391	1
3	1140 030 2002	Piston Ø 47 mm — MS 362, MS 362 C-Q, MS 362 C-M, MS 311	1
4	1140 034 3000	Piston ring Ø 47x1.2 mm — MS 362, MS 362 C-Q, MS 362 C-M, MS 311	2
5	1122 034 1500	Piston pin 12x8x33	1
6	9463 650 1200	Snap ring 12x1	2
7	1140 034 3001	Piston ring Ø 49x1.2 mm — MS 391	2
8	1140 030 2003	Piston Ø 49 mm — MS 391	1
9	9512 003 3061	Needle cage 12x15x15	1
10	1140 022 9500	Spline screw IS-M6x25	4
11	1135 020 9400	Decompression valve	1
12	1140 030 0401	Crankshaft	1
13	9523 003 4301	Grooved ball bearing 15x38x11	2
14	9639 003 1585	Oil seal 15x25x5	2
15	9638 003 1581	Oil seal 15x25x5 option	2
16	9455 621 1520	Circlip 15x1	1
17	1140 149 0600	Muffler gasket	1
18	1140 140 0653	Muffler	1
19	1140 140 0651	Muffler	1
20	1135 145 9002	Plug	2
21	1140 140 8100	Spark arresting screen	1
22	9039 448 0656	Self-tapping screw M4x9.6	1
23	9022 341 0980	Spline screw IS-M5x16	2
24	0783 830 2000	Tube of sealant Dirko HT red option	1

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

Wrong number or missing part for the MS 311, MS 391? Report a correction →