Celebrate a hero of the building world when you recreate this replica of the largest Cat bulldozer with the LEGO Technic Cat D11T Bulldozer (42131) adult set. With this large LEGO set, adult fans can enjoy a little downtime and indulge their passion. Like the real Cat bulldozer, this remote-controlled construction vehicle is built in modular sections. LEGO fans will love the new element - a large sliding blade that can be tightened and loosened. And once assembled, the fun really begins. The remote-controlled vehicle via app is packed with lots of authentic functions to discover. Use the Control+ app to drive, steer and explore this high-performance machine. The app provides realistic movement when you raise, lower or tilt the bucket, or when you raise or lower the rear ripper and ladder. LEGO Technic models delight with movements and mechanisms that allow LEGO builders to explore engineering concepts in a simple and realistic way. The set is part of a series of high-quality LEGO sets for adults, it includes easy-to-understand building instructions and makes a wonderful gift for Christmas, birthdays or other occasions, for yourself, LEGO fans and lovers of motor vehicles of all kinds.
Celebrate a hero of the building world when you recreate this replica of the largest Cat bulldozer with the LEGO Technic Cat D11T Bulldozer (42131) adult set. With this large LEGO set, adult fans can enjoy a little downtime and indulge their passion. Like the real Cat bulldozer, this remote-controlled construction vehicle is built in modular sections. LEGO fans will love the new element - a large sliding blade that can be tightened and loosened. And once assembled, the fun really begins. The remote-controlled vehicle via app is packed with lots of authentic functions to discover. Use the Control+ app to drive, steer and explore this high-performance machine. The app provides realistic movement when you raise, lower or tilt the bucket, or when you raise or lower the rear ripper and ladder. LEGO Technic models delight with movements and mechanisms that allow LEGO builders to explore engineering concepts in a simple and realistic way. The set is part of a series of high-quality LEGO sets for adults, it includes easy-to-understand building instructions and makes a wonderful gift for Christmas, birthdays or other occasions, for yourself, LEGO fans and lovers of motor vehicles of all kinds.
Celebrate a hero of the building world when you recreate this replica of the largest Cat bulldozer with the LEGO Technic Cat D11T Bulldozer (42131) adult set. With this large LEGO set, adult fans can enjoy a little downtime and indulge their passion. Like the real Cat bulldozer, this remote-controlled construction vehicle is built in modular sections. LEGO fans will love the new element - a large sliding blade that can be tightened and loosened. And once assembled, the fun really begins. The remote-controlled vehicle via app is packed with lots of authentic functions to discover. Use the Control+ app to drive, steer and explore this high-performance machine. The app provides realistic movement when you raise, lower or tilt the bucket, or when you raise or lower the rear ripper and ladder. LEGO Technic models delight with movements and mechanisms that allow LEGO builders to explore engineering concepts in a simple and realistic way. The set is part of a series of high-quality LEGO sets for adults, it includes easy-to-understand building instructions and makes a wonderful gift for Christmas, birthdays or other occasions, for yourself, LEGO fans and lovers of motor vehicles of all kinds.
Celebrate a hero of the building world when you recreate this replica of the largest Cat bulldozer with the LEGO Technic Cat D11T Bulldozer (42131) adult set. With this large LEGO set, adult fans can enjoy a little downtime and indulge their passion. Like the real Cat bulldozer, this remote-controlled construction vehicle is built in modular sections. LEGO fans will love the new element - a large sliding blade that can be tightened and loosened. And once assembled, the fun really begins. The remote-controlled vehicle via app is packed with lots of authentic functions to discover. Use the Control+ app to drive, steer and explore this high-performance machine. The app provides realistic movement when you raise, lower or tilt the bucket, or when you raise or lower the rear ripper and ladder. LEGO Technic models delight with movements and mechanisms that allow LEGO builders to explore engineering concepts in a simple and realistic way. The set is part of a series of high-quality LEGO sets for adults, it includes easy-to-understand building instructions and makes a wonderful gift for Christmas, birthdays or other occasions, for yourself, LEGO fans and lovers of motor vehicles of all kinds.
Last updated at 06/07/2026 23:52:55
LEGO Technic App-Controlled Cat D11 Bulldozer 42131 A True-to-Life Replica of an Iconic Construction Machine, Building Kit
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LEGO 42131 - Technic Cat D11 Bulldozer
Delivery $10
LEGO 42131 - Technic Cat D11 Bulldozer
Delivery between Wed – Sat $10
originally posted on ebay.com
I have built a lot of Lego sets and this one by far is my favorite. You can really drive it around and use the blade to push stuff. The best part is the powered ladder that you can put up or down. Everything can be done from your cellphone. Incredible Lego set. Would definitely recommend to anyone.
originally posted on ebay.com
This machine keeps you on your toes, its challenging, intricate, and entertaining. I am of the older generation, and this model gets the brain active, and its better than watching daytime television. If all the models are like this, keep them coming.
originally posted on Smyths Toys
Bought this lego set of smyths and was very well packed and fast postage. As for the lego set itself is truly amazing and very well made. Everything goes together well and instructions are spot on. If you are thinking of buying then go for it you wont regret it !!!
| Educational Objective(s) | Creative Thinking |
| Number of pieces | 3854 |
| Assembly Required | Yes |
| Material Type(s) | Plastic |
| Release date | 1 January 2023 |
LEGO Technic App-Controlled Cat D11 Bulldozer 42131 A True-to-Life Replica of an Iconic Construction Machine, Building Kit
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
LEGO 42131 - Technic Cat D11 Bulldozer
Delivery $10
LEGO 42131 - Technic Cat D11 Bulldozer
Delivery between Wed – Sat $10
I have built a lot of Lego sets and this one by far is my favorite. You can really drive it around and use the blade to push stuff. The best part is the powered ladder that you can put up or down. Everything can be done from your cellphone. Incredible Lego set. Would definitely recommend to anyone.
This machine keeps you on your toes, its challenging, intricate, and entertaining. I am of the older generation, and this model gets the brain active, and its better than watching daytime television. If all the models are like this, keep them coming.
Bought this lego set of smyths and was very well packed and fast postage. As for the lego set itself is truly amazing and very well made. Everything goes together well and instructions are spot on. If you are thinking of buying then go for it you wont regret it !!!
One of my favourite builds, one of the best too! I get to actually drive these things in real life and you guys did a great job of making it work plus the controls and stuff, it would have been cool to add another motor and 2 more actuator rams for the ripper to simulate the real thing but really good build thank you
I love these massive Technics sets, and I have to say this is one of the best I've built. A really involved, technical build where it feels like you are building for days, and then all of a sudden it all comes together. A technical masterpiece, and fun to play with once built too!!As a fan of GoldRush and Lego technics, between this, the front loader and the rock truck I feel ready to tackle the Yukon!!!
I am an operator of a d11 and can say that the d11 technic dozer is a very accurate representation of the real life thing. The ripper works, the blade moves up and down and also tilts. The use of a motor for each track gives it the ability to screw like a real dozer. My first technic set and I loved it.
I have made several of these large Lego Technic app controlled models and this was the most complex but very rewarding to assemble. Although it doesn’t have as many actions as some of the controlled models, the ones it does have work well ….if you built the model correctly! Overall a very good model.
Build was going great until test mode on page 169 of book #1 not doing what it should app telling me to check build, having already read a review of this set before purchase it highlights page 115 orange 2 hole beam in relation to the orange gear sector ring after checking this right. Test mode still not working as should. Rang Lego customer service no help there so I continued to build to completion placed batteries back in app on and the Cat started to purrrrrr.
Even though the price went up, it was well worth it, I bought it for my 20 year old son hows been lego mad since 3 old, it drove his father mad & didn't wonted much 2 do will it, But this time he axley sat down & got involved & helped build it. LOL 😂.
Ive been putting lego Mould King and tons of other brands together for a while i really enjoyed this one it was very unique! I put it together In around five days ! (Remember my leg messed up since August) i cant move normally ! So i dont sleep much ! If pain comes around i keep my mind occupied ! Dont like drugs! So. Lego the way to do it!
| Educational Objective(s) | Creative Thinking |
| Number of pieces | 3854 |
| Assembly Required | Yes |
| Material Type(s) | Plastic |
| Release date | 1 January 2023 |
