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LEGO Technic Mobile Crane MK II (42009)

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  • |MFG Age: 11 - 16 years

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LEGO Technic Mobile Crane MK II (42009) -  LEGO - Toys"R"Us
LEGO Technic Mobile Crane MK II (42009) -  LEGO - Toys"R"Us
LEGO Technic Mobile Crane MK II (42009) -  LEGO - Toys"R"Us
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  • $199.99
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Product Description

Get ready for the biggest, most complex LEGO Technic model ever-- the Mobile Crane MK II (42009)! Drive this 2,350-piece behemoth of a model into position with the cool 8-wheel steering and rotate the superstructure. Then activate the included LEGO Power Functions motor to extend the outriggers, lower the feet and extend or raise the crane arm up to 75cm into the air. Lower the hook with the working winch and get ready to lift the load! This authentic 2-in-1 model also features 10 wheels, 5 axles and a detailed V8 motor with moving pistons. Rebuilds into a container stacker and truck featuring Power Functions motor-powered extending and raising boom.

Additional Info

834073

FB89AC14

673419191890

6025223

9.3 pounds

22.7 x 18.9 x 3.7

How to Get It


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  • This item will ship by itself


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Customer Reviews Summary & Ask a question

Average Customer Rating:

by PowerReviews
LEGO Technic Mobile Crane MK II (42009)
 
4.9

(based on 49 reviews)

Ratings Distribution

  • 5 Stars

     

    (46)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Durable (9)
  • Fun (6)
  • Creative (5)
  • Colorful (4)
  • Easy to assemble (3)

Cons

    Best Uses

    • Imaginative play (4)
    • Motor skills development (4)
    • Older children (4)
      • Reviewer Profile:
      • Parent of two or more children (4)
      • Was this a gift?:
      • No (5)

    Reviewed by 49 customers

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    Displaying reviews 1-10

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    5.0

    Magnificent set

    By LegoBuilderDownUnder

    from Sydney

    Comments about LEGO Technic Mobile Crane MK II (42009):

    Now this has to be a true landmark in the world of Lego Technic. The vast array of functions, adaptability and play value stuns one's mind. And all for less than 300 bucks. Compare this to the Cargo Plane, for example, which has less than half the number of pieces but a lot more than half the price. So this thing has great value for a start, aided by the lack of motors, remote controls, IR receivers and the like which make other, smaller sets, more expensive. Let us start with the first part you build - the truck chassis. This is an incredibly dense area and a lot bigger than it looks like in the pictures. It contains more than half of the entire build's components. The cab is well designed (although the doors open ridiculously wide), with all the details you'd expect, like a steering wheel, wing mirrors, and adjustable head rests.The stickers also combine brilliantly with the build. The steering and actual ride is incredibly smooth for the weight of the beast. The differential also works well. The only glitch in this section is the outriggers. They deploy okay, but lowering them is very slow. I know people have said this in other reviews, but I didn't really think it could be that bad, until I tried it. It really is s-l-o-w. By the way, manually pulling the outriggers out is much faster than doing it electronically. The next phase is the superstructure. This can be really complicated - it's easy to miss a cog or put the wrong beam on the wrong connectors. The gearbox is well laid out and easy to use and the whole superstructure turns nicely in it's frame in the chassis - for a full 360 degrees, which is great. The cab here is compact yet recognisable, with joystick, opening door and, again, adjustable headrests. The motor is very well hidden and I like how the battery box is easily accessible and works as a counterweight. The last phase is the boom, which is a very interesting build. It is built for strength and takes longer than you'd think to make. The way both boom sections extend simultaneously thanks to some clever string placement is a nice touch. The string attached to the superstructure attaches to the boom with ease, and the hook on the end is a surprisingly strong build. Just make sure the gear on the boom for extension attaches properly to the gear on the superstructure - you may have to add a half bush in front of it for it to meet the other gear properly. Once you've finished, you notice it is an exceptionally large build, far longer than it appears on the box, and way cooler looking. The power functions for the boom work well, although I wish the boom raising/lowering and the hook mechanism had a bit more grunt. It can't lift as much as you'd expect - maybe a small Technic pullback racer, but that's about it. I tested the boom's strength by holding it upright in it's position while electronically lowering it, hence pulling the chassis up. It just got the front wheels off the ground then burnt out. Possibly not the best idea to try out... Other than the slight lack of power and the slow speed of the lowering of the outriggers, this crane is amazing. It's huge, yet it glides along. It's boom extension is skinny, yet can cope with a lot of stress. The superstructure is extraordinarily complicated, yet the functions work seamlessly. There's 2,606 pieces yet they all combine to create the biggest beast of a mobile crane that Technic has ever launched - the Mark II 42009. Well done Lego and roll on the Mark III.

    Comment on this review

     
    5.0

    HUGE Technic set

    By claydog

    from Anahiem

    Comments about LEGO Technic Mobile Crane MK II (42009):

    This was my bigest lego set ever and i is awsome. Lego blu mi mined out when i got it. Overall this carane is awsome an HUGE. There is two bad things, the outriggers are supper slow and the winch does not pick up that much waight compard to its scale. But it is still awsome. Pros HUGE doors open tall sturty Cons outrigers are super slow winch is not strong

    Comment on this review

     
    5.0

    Awesome Build

    By TonyA

    from amelia

    Comments about LEGO Technic Mobile Crane MK II (42009):

    This set was truly a challenge. That's a good thing! I like the fact that a LEGO set can really challenge me in the building process. The time and effort put in to this build was well spent! THANK YOU LEGO!! You people are the best!! :-)

    Comment on this review

     
    5.0

    Awesome LEGO and Lightning Fast Delivery

    By LEGO builder's mom

    from Topeka, KS

    Verified Buyer

    Pros

    • Creative
    • Fun
    • Sturdy

    Cons

      Best Uses

      • Older Children

      Comments about LEGO Technic Mobile Crane MK II (42009):

      This is an amazing LEGO set! My 11 year old son couldn't wait for it to arrive and start building. It has exceeded his expectations. Instructions are well written although complex. This is a challenging LEGO for the experienced builder.

      • Was this a gift?:
      • No

      Comment on this review

       
      4.0

      Crane

      By Blessing316

      from Barberton

      Comments about LEGO Technic Mobile Crane MK II (42009):

      A few pieces were missing from the project. Overall a very detailed and interesting project. However the motor seem underpowered and it struggles to move features sometimes. I am going to order the XL motor and see if this helps. But I am pleased with my purchase

      Comment on this review

       
      5.0

      awesome build

      By saahmad

      from Karachi

      Comments about LEGO Technic Mobile Crane MK II (42009):

      as an adult fan of lego i found it a challenging build as i had to get it right first time. once finished the size is pretty big for a toy. intend adding motors to make it mobile. i was impressed by the amount of weight the crane could lift. 228 grams. awesome !. the two different shades of yellow pieces were the only negative about the model.

      Comment on this review

       
      5.0

      Holy Cow! Amazing!

      By khach

      from Anchorage

      Comments about LEGO Technic Mobile Crane MK II (42009):

      Get ready for the most incredible LEGO model ever. I built this with my 18 year old son and we spent about 10 hours doing this. The set comes with 3 distinct phases and 6 (YES SIX!) huge instruction booklets. The truck portion has 3 booklets, the crane base has 2 and the crane arm has 1 booklet. The first phase (parts bags labeled with a "1") is the longest and intense. We REALLY suggest sorting all parts as you begin each phase. (for example putting all identical parts in a pile before beginning each phase) The 20 minutes you invest in this will payoff due to the sheer VOLUME of pieces! The thought that went into this model is nothing short of AMAZING. They really put something amazing together here. As you build BE SURE to make certain that all axles and gears spin very freely. With all the transfer of motion from place to place in this model it is important that power moves easily. The 4 way shifting of the power unit on the crane base is nothing short of genius! The use of parts was well thought out and we (both long time builders) were very impressed. The use of the battery pack as a counter balance was great and the use of the string to telescope the the smallest section of the crane arm was a great way to use power efficiently. Be sure to look at the instructions carefully on this one a small mistake early on in the build could make you nuts later on. Test each function as you go. You will love building this model.

      Comment on this review

       
      5.0

      Brilliant

      By Matt4935

      from Ayr

      Comments about LEGO Technic Mobile Crane MK II (42009):

      When I first unboxed this product I was amazed the the sheer amount of pieces. it was my biggest Lego set ever and my first technic set, so I wasnt sure how well i would do building it. I would only recommend this product if youve had years of lego experience, and preferably some technic experience (I made numerous mistakes throughout). I set about building it and it was incredibly complex, but easily worth it. the most incredible part of the set has to be the gearbox which controls all the motorised functions. Its tricky to build but incredibly clever. Overall this set is difficult but amazing.

      Comment on this review

       
      5.0

      Awesome !!!!!!!!!! This is a must have.

      By Eyeb1legoman

      from Seal Beach

      Comments about LEGO Technic Mobile Crane MK II (42009):

      Absolutely impressive. Nice work Technic group! Thank you Markus !!!!!!! As a Mechanical Engineer I really appreciate what you have created with Lego elements--fantastic. I am anxiously waiting for the 42030 Volvo loader availability in the US later this year.

      Comment on this review

       
      5.0

      Mother of all Lego mobile cranes

      By itsavette

      from Toronto

      Comments about LEGO Technic Mobile Crane MK II (42009):

      What is big and yellow, highly complex, and will likely triumph over every Lego set you have in your room as a giant monolith? It's not a trick question; it's the latest 42009 Mobile Crane Mark II from Lego Technic. The Walkaround To recent date, there have been two other Lego Technic mobile cranes: #8053 in 2010, and #8421 in 2005. Arguably only 8421 (or Mark I) was truly worthy of greatness; in fact, it kickstarted a whole new generation of construction vehicle builders. In comparison however, 42009 (a.k.a MK II) completely overshadows its predecessors, both in size and overall complexity; first hint you get is when you pick up the box; packing 2,606 pieces. So yes, it's heavy. The Building Experience There are 6 (six) instruction booklets: 3 for the truck itself, 2 for the superstructure, and 1 for the crane arm. Lego has also purposely divided up all part bags per each section of the set, so making sense of 2,606 parts is a lot easier. The instructions are clear and extremely precise all the way; this is a good thing when you're dealing with a project this big, this complex and involving thousands of pieces. One thing though - and I cannot stress this enough - is pay very close attention when fitting all the modules together, particularly all the bits involving gears and axles. This is crucial to the model functioning properly in the end; in my case, I bolted two components together backwards, so the outrigger system failed to deploy. Luckily, I noticed this in time and switched the components into the correct place. As I learned, be sure to check every major assembly twice before moving onto the next page and you'll be just fine. In terms of building it though, it was one of the toughest and the most rewarding Lego Technic experience ever; and this is coming from someone who's been building Lego Technic for almost 15 years. Scale and Features Without any exaggeration, the MK II Mobile Crane is massive. Crank up the crane and extend the outriggers, and it becomes even bigger. Details are all in the right places too; opening doors on the truck and crane cabin, V8 engine, and tons of cool stickers. This is easily one of the biggest Lego Technic sets I've ever seen. The MK II's functionality is mouthwatering; 8-wheel steering system, working V8 engine with differential, deployable outriggers/arms and of course, full crane functionality with 360-degree capability. And here's the kicker: all the MK II's power functions are achieved by just one motor; which is why there are multiple gearbox controls on the crane and two on the truck to be able to manually operate all the functions. Adding more motors would of removed much of the very brilliant and well-engineered gearboxes, but it would of consequently driven up the cost of the set as well. Never thought I'd say this, but I actually prefer the gearboxes in this case; makes you feel like you're in that cabin maneuvering the controls. You'd also be surprised how much weight the crane can lift until the motor starts to struggle. That said, you can get yourself Lego's Power Functions XL-Motor, L-Motor, IR Receiver and remote control, and you can start adding more motorization to your crane, should you desire more. Conclusion As a technical challenge to your inner engineer, as a test to your skill and patience as a Lego builder, the 42009 MK II Mobile Crane is a fantastic example of what the Design Team over at Lego's Technic division can achieve when they really put their minds to it. But it's more than that. It's a brilliant toy with lots of guaranteed hours of play time for any child or adult (or childish adult) to build and enjoy over and over again.

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      5.0 stars

      $219.99 $199.99

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