LEGO INSTRUCTIONS ONLY for set 42121-1 Technic Heavy Duty Excavator FREE P&P NEW
42121 | The Lego Car Blog
MODEL C | the LEGO Technic Rebricks | 42121(excavator) C model | Facebook
ForelockMocs - Another set of instructions done! And it's an alternate for 42121 by Dyens Creations. https://rebrickable.com/mocs/MOC-75354/Dyens%20Creations/42121-c-model-forest-harvester/#details | Facebook