Does the side casing come with the bits inside? For example spring and brake band etc.

The cover comes with items 2-6 also (listed below); 2 - 1120 162 5200 Pin 3 - 1129 640 5000 Insert 4 - 9378 543 2700 Notched pin 5x30 5 - 1129 656 7701 Chain catcher 6 - 1129 162 6600 Limit stop