1. Cylinder block

2. Ladder frame

3. Crankshaft

4. Crankshaft upper bearing

5. Crankshaft lower bearing

6. Thrust bearing

7. Main bearing

8. Crankshaft sprocket

9. Piston ring

10. Piston

11. Connecting rod

12. Connecting rod upper bearing

13. Connecting rod lower bearing

14. Connecting rod bearing cap

15. Piston pin