Plug 20778493
| No. | Part Name | Part Number | Qty | Description |
| 1 | Oil filter housing | 20586031 | 1 | |
| 2 | Oil filter housing | 8131101 | 1 | |
| 3 | Gasket | 947627 | 2 | |
| 4 | Plug | 471598 | 2 | |
| 5 | Valve cone | 471085 | 2 | |
| 6 | Compression spring | 466653 | 2 | |
| 7 | Gasket | 11998 | 2 | |
| 8 | Plug | 960632 | 2 | |
| 9 | Plug | 960628 | 1 | |
| 10 | Gasket | 947281 | 1 | |
| 11 | Expansion plug | 20478143 | 2 | |
| 12 | Plug | 20381215 | 1 | |
| 13 | Gasket | 947629 | 2 | |
| 14 | Relief valve | 3169687 | 1 | |
| 17 | Retaining ring | 955964 | 1 | |
| 18 | O-ring | 976039 | 1 | (980936) |
| 20 | O-ring | 949659 | 1 | |
| 21 | Cover | 3184806 | 1 | |
| 22 | Flange screw | 947542 | 2 | |
| 23 | Reduction valve | 3826265 | 1 | Mounted between cylinder 2 and 3. |
| 24 | Reduction valve | 471706 | 1 | Marked blue |
| 25 | Cover | 471648 | 2 | |
| 26 | O-ring | 949659 | 2 | |
| 27 | Flange screw | 946544 | 4 | For THD102KB and THD102KD. |
| 28 | Piston | 20440781 | 1 | |
| 29 | Spring | 20464676 | 2 | |
| 30 | Valve cone | 20440779 | 1 | |
| 31 | Cap plug | 946778 | 1 | |
| 32 | Nipple | 466623 | 2 | |
| 33 | Nipple | 469904 | 1 | |
| 34 | Sealing ring | 469846 | 2 | |
| 35 | Plug | 20778493 | 1 | |
| 36 | Flange screw | 984735 | 3 | |
| 37 | Flange screw | 984747 | 2 | |
| 38 | Oil filter | 478736 | 2 | |
| 39 | Oil filter, by-pass | 477556 | 1 | |
| 40 | Gasket | 20823322 | 1 | |
| 41 | Elbow nipple, pressure monitor/piston cooling | 990916 | 1 | Replaced by next part number |
| 41 | Elbow nipple | 992106 | 1 | |
| 42 | Flange screw | 984735 | 2 |
| Item | Part Name | Part No. |
| 35 | Plug 20778493 | 20778493 |
| Details | |
| Engine model | TAD1650VE TWD1644GE, TWD1645GE TWD1672GE, TWD1673GE |
| Application | Oil Filter Housing and Oil Filter |
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Tags: Plug, Volvo Penta, 20778493