Stihl 1122 · Section C · 3 of 16 · 27 parts
Oil pump, Chain tensioner kit
Fits MS 650.
Parts (27)
| Pos | Part number | Description | Qty |
|---|---|---|---|
| 1 | 1122 649 5000 | Sealing ring B4x2 | 1 |
| 2 | 1122 647 0601 | Pump piston | 1 |
| 3 | 1128 647 4806 | Control bolt | 1 |
| 4 | 1122 640 3005 NLA | Pump housing | 1 |
| 5 | 0000 958 0611 | Washer | 2 |
| 6 | 0000 997 0629 | Compression spring | 1 |
| 7 | 1125 647 7002 | Plug | 1 |
| 8 | 9646 945 0160 | O-ring 4x2 | 2 |
| 9 | 9380 620 1090 | Roll pin 2x10 | 1 |
| 10 | 1122 647 0602 | Pump piston option | 1 |
| 11 | 1128 647 4802 | Control bolt option | 1 |
| 12 | 9022 313 0660 | Spline screw IS-M4x12 | 2 |
| 13 | 1122 640 7105 | Worm | 1 |
| 14 | 1122 647 2401 | Spring | 1 |
| 15 | 1125 007 1021 | Spur gear / chain adjusting screw kit | 1 |
| 16 | 9646 945 0490 | O-ring 7x1.5 | 1 |
| 17 | 1125 640 1900 | Tensioner slide | 1 |
| 18 | 1125 664 1400 | Thrust pad | 1 |
| 19 | 1122 664 2200 | Cover plate | 1 |
| 20 | 9041 216 0630 | Pan head screw M4x8 | 2 |
| 21 | 1122 664 4500 | Support | 1 |
| 22 | 1128 664 1001 | Inner side plate 0.9 mm → replaced by 1128 664 1002 TI 12/1994 | 1 |
| 23 | 1128 664 1002 NLA | Inner side plate → replaced by 1128 664 1001 TI 15/2007 option | 1 |
| 24 | 1122 021 1105 | Cover | 1 |
| 25 | 9022 313 0660 | Spline screw IS-M4x12 | 4 |
| Not numbered on the diagram — assemblies, kits and options | |||
| — | 1122 640 3205 | Oil pump (0.9 mm stroke) → replaced by 1122 640 3201 TI 34/2009 | 1 |
| — | 1122 640 3201 | Oil pump (1.15 mm stroke) option | 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 NLA = withdrawn by STIHL before 2012.
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