Name: LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Toy Building Kit (3,854 Pieces)
Brand: LEGO
SKU: 6000203211644
Price: 1399 CAD
Availability: InStock
Rating: 4.5 (61 reviews)

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LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Toy Building Kit (3,854 Pieces)

<ul><li><strong>App-Controlled Operation</strong>: Use the CONTROL+ app to drive, steer, raise, lower, and tilt the blade, or raise and lower the ripper and ladder.</li><li><strong>Large Scale Replica</strong>: Measures over 10 in. (26 cm) high, 22 in. (57 cm) long, and 14.5 in. (37 cm) wide.</li><li><strong>Realistic Movement</strong>: Features a new-for-October-2021 LEGO track element for realistic movement.</li><li><strong>Motorized Functions</strong>: Includes 2 x no. 15 motors, 2 x large motors, and 1 x hub.</li><li><strong>Extensive Piece Count</strong>: A 3,854-piece building kit.</li></ul>

<ul><li>Build a mighty construction vehicle packed with details with this huge LEGO® Technic™ App-Controlled Cat® D11&nbsp;Bulldozer 42131 model building set for adults</li><li>Enjoy a rewarding build, then explore the model’s many features and functions.</li><li>See the new-for-October-2021 LEGO® track element that gives the bulldozer its realistic movement</li><li>Use the CONTROL+ app to operate your bulldozer.</li><li>Bring the bulldozer model to life as you drive and steer, then raise, lower and tilt the blade or raise and lower the ripper and ladder. &nbsp;</li><li>Looking for the best gifts for yourself or any fan of Cat® bulldozers and other cool vehicles? This impressive construction vehicle set makes a top gift idea</li><li>This Cat® replica measures over 10 in. (26 cm) high, 22 in. (57 cm) long and 14.5 in. (37 cm) wide</li><li>Requires 6 x AA batteries (not included).</li><li>The set also includes 2 x no. 15 motors, 2 x large motors and 1 x hub</li></ul>

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Celebrate a hero of the construction world as you build a replica version of the biggest Cat dozer with this LEGO Technic App-Controlled Cat D11&nbsp;Bulldozer (42131) kit. This large set lets adults enjoy quality ‘me time’ focusing on their passion. Just like the real Cat bulldozer, this model is built in modular sections. LEGO fans will love the new-for-October-2021 LEGO element – a large track that can be tightened and loosened. And the build is just the start! With many authentic features and functions packed into this model, there’s lots to discover.<br><br>Take control of your bulldozer model<br>Use the CONTROL+ app to operate and explore this heavy-duty machine. Use the app to drive and steer. The app delivers realistic movement as you raise, lower and tilt the blade or raise and lower the ripper and ladder.<br><br>Explore engineering<br>LEGO Technic buildable models feature realistic movement and mechanisms that let LEGO builders explore engineering concepts in an approachable and realistic way.

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Gears

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I'd previously built the Technic Lamborghini, and while I enjoyed it, wasn't especially looking forward to my next Technic build.  However, I kept seeing the Bulldozer and after watching some videos demonstrating its functionality, I decided to spring for it.  I took my time (~ 25-30 hours) spread out over two weeks, being sure all the pieces were correctly in place.  The moment of truth was last night, when I finished the build and fired up the app to really test things out.  The result?  Wow...I am now an absolute Technic fan, and - as I write this - the postman is just delivering the Bugatti!  Can't wait to get started on that, and of course looking forward to the Ferrari.

LEGO Technic...I believe!

LEGO

Jane

Absolutely the best set we have ever built. It took me and my 18 year old Grandson a couple of weeks to build this, it is not for the faint of heart. The detail and precision are superb. My grandson is training to be a heavy duty mechanic, so this was right up his ally! He now wants to take it to his class to show them the module nature of a CAT build. Well done LEGO, your best yet!

Outstanding

Fantastic build & play !  I have four Volvo Haulers (different colors), a Liebherr excavator, the Rough Terrain Crane, the 4x4 Tow Truck and now this huge dozer!  Each built exactly right the first time and those sets using the Control App worked perfectly at the start! Love my pseudo construction company, kudos Lego !  The key is to take a bit more time when building Technics that are App Controlled, accuracy is essential to reduce frustration and failure time !

New Item in the fleet

I'm currently halfway through the build and have enjoyed it so much I'm actually buying the Liebherr to go with it! I've always been a little put off by Technic because it's so precise and unforgiving but I have really enjoyed this build. Beautiful! So much attention to detail and it looks good if you're up close or far away. I honestly can't wait to finish this build so I can drive it around and play with it! I got it as a gift but would have bought it for myself in a heartbeat had I known how much fun this is to put together. Strongly recommend!

WOW!

[This review was collected as part of a promotion.] I am one of the biggest fans of Lego you can find, however, I have never really got into Lego Technic favouring the original Lego instead. I was convinced to give this a try and I'm so pleased I did. I built it with my 13 year old son and throughly enjoyed every minute of it. Once built it is then controlled by a faultless app on your phone. We have iPhones and it works perfectly. I will definitely be trying some more Lego technic. Well done Lego, another top quality, flawless product!!

Wow, just Wow!!!

Okay, this is amazing. The LEGO Cat D11 is a must have for fans of heavy equipment and RC technology, and of course LEGO.

Building this large 18+ Technic set came with many quirks that only Technic has! Gears, pins,hydraulics, etc. It was a breeze to put together. I've had experience building large Technic sets like this and am season to know what to expect. If you're just getting into Technic go for something smaller first. Tryst me.

The RC capability is choice! This thing has some speed and torque! Realistic functions to the actual bull dozer! Lift up the blade, lower the ripper, and lower the ladder! Fantastic!

This set looks great when displayed to the Liebherr R9800 and Volvo 6x6. 

It's a niche category for fans of the LEGO community. If you see it get it! 

-WZ

WOW!!

I am 75 years old and haven't build any Lego since my children were kids, 50 years ago. My wife bought me the Bugatti Chiron for our last wedding anniversary and I became hooked. I bought the CAT bulldozer a month ago and I thought the Bugatti was difficult but the CAT is on a whole different level. The detail is amazing and the remote control app is superb. It needs a great deal of concentration during the build because the detailed instructions have to be followed precisely, one small piece fitted incorrectly will effect the working of the final model but the sense of achievement when I switched the model on and everything worked successfully was tremendous. One word of advice, don't rush your build, take your time and enjoy putting every piece together.

Brilliant Model

This is an incredibly advanced Lego set. It is not for extremely young children. It's a lot of fun to build and the playability is off the charts. This bulldozer is huge. My only  gripe is the price. I'd like to see a much larger technic set in terms of piece count. Somewhere between 6000 to 9000 pieces

D11 bulldozer

This was excellent fun to build; the instructions were spot on. I liked the way that part-through you could test the drive system and fix any problems before building anymore, an excellent feature. My only fault was with the app, which continues to demand an update every time it's opened.

Great build

The overall building process was fun and varied, there's lots of cool gearing and a few newer pieces as well as the new wide tracks.

The price is on the higher side for a large motorized set, at least compared to others like the 42100 liebherr excavator or  the 42114 volvo 6x6.

The play is ok but clunky. Switching in between any of the non-driving actions takes several seconds (as I understand it, it's to reduce tension on the gearbox by wiggling the motors) and also means that only one action can be done at once (not including driving). A little disappointing.

Overall, it's a great building experience and looks fantastic as a display, but functionally and price-wise it's slightly lackluster.

Fun build, not so great value, clunky operation

Thought it would be good with my volvo dump truck but it ended up being nothing but problems
I am 15 hours in and still on stage 2 had to start over completely after stage 3 due to a gearbox problem
Rebuilt it and now the motors on the gearbox have no power when plugged in and connected 
They worked 20 minutes ago I don't know what happened

Biggest mistake of my life

LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Toy Building Kit (3,854 Pieces)

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