LEGO Technic - Mercedes-Benz Arocs 3245 - 42043

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Product Information

Colour Multi
Height 48 cm
Width 124 cm
Depth 58.2 cm
Number of Pieces 2793
Range LEGO Technic
Minimum Age 11 years
Model Number 42043
Product Type Building Blocks
Type Building Blocks
Weight 4.49 kg
Brand LEGO

Why we love this

Build and experience the powerful Mercedes-Benz Arcos 3245! The tough LEGO Technic Mercedes-Benz Arcos 3245 with motorized crane, claw, tipper body and outriggers is packed with authentic details

Climb aboard the awesome Mercedes-Benz Arcos 3245! This huge, robust, 2-in-1 LEGO Technic model is packed with authentic details and features. Turn on the included Power Functions large motor and engage the advanced pneumatic system (new for fall 2015) for complete control over an array of exciting motorized functions.

You can operate the ultra-versatile crane arm mechanism, open and close the grabber, extend the outriggers or raise and lower the tipper body! Twin axle steering, double differential drive and fully independent suspension provide ultimate manoeuvrability, and the driver's cab tilts to reveal a detailed 6-cylinder engine with moving pistons.

Open the cab doors to access the detailed interior with dashboard, blue seating and steering wheel with Mercedes-Benz logo. This meticulously detailed 2015 model also features an extendable crane arm, 4 suspended axles, double wheels on the 2 rear axles, opening tailgate, warning beacons, wing mirrors and comprises 2753 elements, making it the largest LEGO Technic model ever produced.

An authentic white, gray and black colour scheme and iconic 3-pointed Mercedes-Benz star add the finishing touches to this impressive model.

When you feel like another building challenge, rebuild it into the rugged Mercedes-Benz Articulated Construction Truck.

Product Features:

• Features a LEGO Power Functions large motor and an advanced pneumatic system for an array of motorized features, including extendable outriggers, automated crane arm and grabber, and a working tipper body

• Also features 2 suspended front axles with twin axle steering, 2 suspended rear axles with double wheels and 2 differentials, fully independent suspension, 6-cylinder engine with moving pistons, detailed cab, opening doors and tailgate, and a 3-pointed Mercedes-Benz star

• 2-in-1 model: rebuilds into a Mercedes-Benz Articulated Construction Truck

• Crane arm reaches up to 57cm into the air

• Mercedes-Benz Arcos 3245 (with retracted crane arm and outriggers) measures over 12" (31cm) high, 21" (54cm) long and 5" (14cm) wide

• Merc edes-Benz Articulated Construction Truck (with crane boom extended) measures over 20" (53cm) high, 30" (77cm) long and 5" (14cm) wide, and 12" (31cm) high with crane boom retracted

Number of Pieces: 2793
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Our customers say

LEGO Technic - Mercedes-Benz Arocs 3245 - 42043 is rated 4.9 out of 5 by 59.
Rated 5 out of 5 by from Great product I bought this for my husband as he has built similar items in the past. But this one is superb, it's time consuming as it has so many working features and big, but the quality is great. I Would recommend it.
Date published: 2017-02-16
Rated 5 out of 5 by from Awesome Product & Build This is my second Lego Technic purchase of the flagship style products (after the Porsche 911 GT3 RS) and I have to say it's going to be tough to find a better or more rewarding model and build than the Mercedes Benz Arocs. Build itself took me around 12-14 hours across 5 days and while it was challenging (particularly the crane arm) the packaging of the components allows you to identify what's going to be needed for the various stages while the thick instruction book provides plenty of detail to guide you through each step of the build. I wouldn't recommend this product for children under around 10 years unless someone older is providing guidance as there are some complex parts of the build - particularly with the pneumatics. The hosing lengths can be quite similar and getting them all in the right place is not the most straightforward even for a 38 year old! Finished product looks great and the functionality allows it to be enjoyed by children and adults alike. Very rewarding and I'm already planning my next Lego Technic purchase. Cannot recommend this product highly enough!
Date published: 2017-02-16
Rated 5 out of 5 by from Amazing Lego Really good lego technic model, took some hours to build but well worth the effort, brilliant value for money. Arrived safe and sound at our local Asda store and was the cheapest around!
Date published: 2017-02-16
Rated 5 out of 5 by from Cheapest price around! Cheapest price for the same product. Would have been even better if it was free delivery but still A*
Date published: 2017-02-13
Rated 5 out of 5 by from Worth the buy This is a brilliant set for any level of builder! Lots of fun n lots of moving parts.
Date published: 2017-02-12
Rated 4 out of 5 by from Great build, minor quibble This is thus far a great build. I am a little over halfway through it right now, having just attached the tires and a few other parts. The minor quibble though, is about those tires. The instructions have you just putting the two rear tires right next to each other. This leads to the rear tires touching each other. That, as anyone with any trucking or CDL experience knows, is a HUGE no-no. A small spacer (the flat type used on the front tires to put the hubcap at a slight remove from the wheel) solves this. Other than that minor quibble, this has thus far been a rather entertaining build. Lots of steps, lots of parts, and an ingenious steering mechanism.
Date published: 2017-02-11
Rated 5 out of 5 by from First Time Lego Builder I was looking to buy my grandson something for Christmas and started looking at Lego when I came across the Mercedes 42043 lorry. I wasn’t aware that Lego made this type of model and was immediately impressed. Not having made a Lego kit before and not knowing what to buy myself for Christmas I decided to treat myself. And I wasn’t disappointed. Once I got used to the manual and I got started it became very addictive but it still took me around 50 hours to build. Great fun and all the parts fitted well, the only draw - back being that there were a few bits missing and the time taken to get them sent from Denmark. However the support team at Lego were extremely friendly and helpful. Would recommend this to anybody who enjoys building kits. The best advice I would give to anybody building this kit is ‘don’t rush’ for if you get it wrong in the early stages it will be difficult to correct later
Date published: 2017-02-09
Rated 5 out of 5 by from Just like the real thing, only smaller (sort-of) Hands-down, one of the largest, most detailed, most realistic LEGO Technic vehicles I’ve ever assembled. It's clear that lot of attention to detail went into creating this model. The set has plenty of various moving parts to enjoy: moving engine pistons, dump bed (with locking tailgate – nice touch!), tilting cab, fully-functional clamshell arm, 8-wheel suspension, 4-wheel steering, and stabilizers. I’m happy to see the return to more and improved pneumatics! The realistic wheel chocks were a happy surprise. Do be careful how you “thread” the pneumatic tubes in the clamshell arm base…it pays to be neat with how you route them. PROS: -Plenty of moving parts -Pre-cut pneumatic hoses -Realistic design and functionality -HOURS of building fun CONS: -No non-motorized building option -Loud motor (linear actuator is abnormally loud when the clutch kicks-in, unlike when the clutch kicks in for the other motorized functions) -Instructions could benefit from a few more close-up detail shots, especially when it’s time to thread the pneumatic tubes into the clamshell arm base -Steering seems like it’s under stress -Pneumatic pump seems undersized (takes a while to get things moving) SUGGESTIONS: -Make the dump bed pneumatic-powered -Ditch the compressor and use a manual pump for the pneumatics (they’re much more responsive and smoother-acting when I bypassed the compressor with a spare manual pump I had lying around)
Date published: 2017-02-04
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LEGO® Technic Mercedes-Benz Arocs 3245


  • Climb aboard the awesome Mercedes-Benz Arocs 3245! This huge, robust, 2-in-1 LEGO Technic model is packed with authentic details and features.
  • You can extend the outriggers or raise and lower the tipper body!

  • The driver's cab tilts to reveal a detailed 6-cylinder engine with moving pistons.

  • You can operate the ultra-versatile crane arm mechanism, and open and close the grabber.

  • This meticulously detailed 2015 model comprises 2793 elements, making it the largest LEGO Technic model ever produced.

  • 2-in-1 model: rebuilds into a Mercedes-Benz Articulated Construction Truck.

Product Videos

Product Images

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