Lock nut 990980
| No. | Part Name | Part Number | Qty | Description |
| 2 | Flange screw | 984761 | 1 | |
| 3 | Washer | 976945 | 1 | |
| 4 | Spindle | 849050 | 1 | |
| 5 | Sealing ring | 471321 | 1 | |
| 6 | Torsion spring | 849051 | 1 | |
| 7 | Bearing bushing | 946176 | 2 | |
| 8 | Intermediate lever | 849052 | 1 | |
| 9 | Wear washer | 843927 | 1 | |
| 10 | Washer | 960145 | 1 | Classed engine,spec.867117., Replaces earlier production spacer pin FIG.15., D70B spec. 867278 alt. |
| 11 | Washer | 955898 | 1 | Late type |
| 12 | Hexagon screw | 970989 | 1 | |
| 13 | Protecting casing | 471889 | 1 | |
| 14 | Hexagon screw | 970959 | 1 | |
| 15 | Washer | 976945 | 1 | |
| 16 | Lock nut | 990980 | 1 | |
| 17 | Pulley | 849049 | 1 | |
| 18 | Retaining ring | 914462 | 2 | |
| 19 | Shaft | 849048 | 1 | |
| 20 | Ball bearing | 181286 | 1 | Included in repair kit 276936 for water pump 20431484. |
| 21 | Retaining ring | 914533 | 1 | |
| 22 | Protecting plate | 844049 | 2 | |
| 23 | Sealing ring | 965862 | 2 |
| Item | Part Name | Part No. |
| 16 | Lock nut 990980 | 990980 |
| Details | |
| Engine model | TAD1630P, TWD1630P, TWD1630PP, TAD1630PB TAD1630V, TWD1630V TWD1620G, TWD1630G, TAD1630G, TAD1630GE, TAD1631G, TAD1631GE |
| Application | Belt Tensioner Device |
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Tags: Lock nut, Volvo Penta, 990980