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LEGO models my own creation MOCpages toys shop Ultimate 42009 with instructionsTechnic
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Ultimate 42009 with instructions
Building instructions available
About this creation

Download building instructions on the instructions page of

Just as I did with the 8043 Motorized Excavator, I made a fully remote controlled and improved version of the 42009 Mobile Crane Mk II set.

All the essential functions of the crane were motorized, which are:
  • Driving (1x XL-motor)

  • Steering (1x M-motor)

  • Outriggers (1x M-motor)

  • Outrigger-legs (1x M-motor)

  • Lifting/lowering boom (1x L-motor)

  • Extending/retracting boom (1x L-motor)

  • Lifting/lowering hook (1x M-motor)

  • Upperstructure 360+ degree rotation (1x M-motor)

Funtions that were improved:
  • Boom extends further. Max boom-length 96 studs

  • Boom retractrs further

  • Better steering-lock

  • Solid metal hook

  • Increased lifting power

  • Faster outriggers

  • More efficient drivetrains

Building instructions
Full building instructions are available as free download. And there are 2 different parts-lists: 1 for the complete model and 1 that only contains the extra parts needed bedises a standard 42009. Go to the Instructions page to download them


 I like it 
  May 9, 2016
Great Project !! Any ideas how to get the parts/instructions is not available? Thanks
  May 9, 2016
It seems that there is a problem with your website: It pops up a message for you to contact their help desk. Keep up the great work. I looking forward downloading these instructions and building the Ultimate 42009
 I like it 
  December 29, 2015
Compre la grúa la semana pasada, la arme la misma noche y la disfrute mucho. Pero al instante se me ocurrió modernizarla con radios controles y suspencion independiente y traccion en las 10 ruedas. Busqué y encontré esta magnífica adaptación, es exelente. De echo ya la estoy transformando. Las piesas adicionales no tardan en llegar.
 I like it 
  May 7, 2015
amazing mod and tnx a loooot for instructions :D
 I like it 
  July 10, 2014
OUTLANDISH!!! And I reserve that word for only thee most outlandishly spectacular MOCs.
  August 29, 2013
Excellent ! Congratulations to a fantastic upgrade. This model is plain crazy. I'm so going to build this one :-)
 I like it 
  August 25, 2013
Amazing! Glory for the king of lego engineering :-)
 I like it 
  August 25, 2013
very good jurgen looks like you have improved a already very good lego crane i have the mark one version and this looks twice as much fun to build
By Jurgen Krooshoop
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Added August 25, 2013

The background images used on this page are © Todd Lehman,
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LEGO models my own creation MOCpages toys shop Ultimate 42009 with instructionsTechnic

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