1. Inele de piston
2. Piston
3. Biela
4. Rulment superior al bielei
5. Bolt de piston
6. Carcasa inferioară a lagărului de biela
7. Capac rulment al bielei
8. Carter
1. Rulment principal superior
2. Rulment axial
3. Arborele cotit
4. Coborâți rulmentul principal
5. Capac rulment principal