| Brand | Assembly | Path | Ref |
| VOL |
Belt Transmission |
Volvo Penta / Marine Gasoline Engines / 251A / 21 Engine / Belt Transmission |
17 |
| VOL |
Belt Transmission |
Volvo Penta / Marine Gasoline Engines / 251A / 21 Engine / Belt Transmission |
18 |
| VOL |
Camshaft and Valve Mechanism |
Volvo Penta / Marine Gasoline Engines / 251A / 21 Engine / Camshaft and Valve Me |
6 |
| VOL |
Cylinder Block |
Volvo Penta / Marine Gasoline Engines / 251A / 21 Engine / Cylinder Block |
24 |
| VOL |
Short-block |
Volvo Penta / Marine Gasoline Engines / 251A / 99 Repair Kits / Short-block |
1 |
| VOL |
Belt Transmission: A |
Volvo Penta / Marine Gasoline Engines / AQ171A / 21 Engine / Belt Transmission: |
17 |
| VOL |
Belt Transmission: A |
Volvo Penta / Marine Gasoline Engines / AQ171A / 21 Engine / Belt Transmission: |
18 |
| VOL |
Belt Transmission: B |
Volvo Penta / Marine Gasoline Engines / AQ171A / 21 Engine / Belt Transmission: |
17 |
| VOL |
Belt Transmission: B |
Volvo Penta / Marine Gasoline Engines / AQ171A / 21 Engine / Belt Transmission: |
18 |
| VOL |
Camshaft and Valve Mechanism: A |
Volvo Penta / Marine Gasoline Engines / AQ171A / 21 Engine / Camshaft and Valve |
7 |
| VOL |
Camshaft and Valve Mechanism: B |
Volvo Penta / Marine Gasoline Engines / AQ171A / 21 Engine / Camshaft and Valve |
7 |
| VOL |
Cylinder Block: A |
Volvo Penta / Marine Gasoline Engines / AQ171A / 21 Engine / Cylinder Block: A |
25 |
| VOL |
Cylinder Block: B |
Volvo Penta / Marine Gasoline Engines / AQ171A / 21 Engine / Cylinder Block: B |
25 |
| VOL |
Short-block |
Volvo Penta / Marine Gasoline Engines / AQ171C / 99 Repair Kits / Short-block |
1 |