Walmart+ is here to help make every day easier. Learn more.
Walmart+ is here to help make every day easier.
LEGO

LEGO Technic Mercedes-Benz Arocs 3245, 42043

Model: 42043
Walmart # 554275360
Average Rating:out of 5 stars
$529.99$529.99
Free delivery

Arrives by Friday, Sep 25

Or get it by Thu, Sep 24 with faster delivery

Pickup not available

Sold & shipped byWest End Toys
Shop Now
Climb aboard the awesome Mercedes-Benz Arocs 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 maneuverability, and the driver's cab tilts to reveal a detailed six-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, four suspended axles, double wheels on the two rear axles, opening tailgate, making it the largest LEGO Technic model ever produced.

About This Item

We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Climb aboard the awesome Mercedes-Benz Arocs 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 maneuverability, and the driver's cab tilts to reveal a detailed six-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, four suspended axles, double wheels on the two rear axles, opening tailgate, making it the largest LEGO Technic model ever produced.
LEGO Technic Mercedes-Benz Arocs 3245, 42043:
  • Includes 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
  • Includes 2753 assorted LEGO elements
  • Activate the LEGO Power Functions
  • Engage the pneumatic pump
  • Extend the outriggers
  • Ultra-versatile crane arm mechanism
  • Tilt the cab to reveal the engine
  • All-round independent suspension
  • 2-in-1 model: rebuilds into a Mercedes-Benz Articulated Construction Truck
  • Crane arm reaches up to 57cm into the air
  • Mercedes-Benz Arocs 3245 (with retracted crane arm and outriggers) measures over 12" (31cm) high, 21" (54cm) long and 5" (14cm) wide
  • Mercedes-Benz Articulated Construction Truck (with crane boom extended) measures over 22" (57cm) high, 29" (75cm) long and 6" (17cm) wide and 11" (28cm) high with crane boom retracted
  • Age Range: 11 - 16 years

Specifications

Brand
LEGO
Age Range
11 to 16 years
Color
Multi
Gender
Unisex
Lifestage
@generated
Assembled Product Dimensions (L x W x H)
22.91 x 18.90 x 4.88 Inches

Customer Reviews

Average Rating:(4.8)out of 5 stars
5 stars
62
4 stars
10
3 stars
0
2 stars
0
1 star
1
Most helpful positive review
17 customers found this helpful
Average Rating:(5.0)out of 5 stars
Best new model of 2015
This has to be the best model of the 2015 cycle. The model is so realistic, and has so many great motorised features - dumping cargo hold, rotating grabber, full range of functions via the air pump. Although there are so many parts, the model was fairly easy to put together. The building manual was very easy to follow as always and bags numbered for ease of identifying. The one big thing over other years is the introduction of pre cut hoses which was a real bonus. no more worrying that you have to cut the pipe to the exact length or risk being short on another section! The only thing I have trouble/some difficulty with was the number of pipes that I had to feed through the centre of the grabber arm.
Most helpful negative review
Average Rating:(1.0)out of 5 stars
It's LEGO fault.
Still waiting on missing pieces.
Most helpful positive review
17 customers found this helpful
Average Rating:(5.0)out of 5 stars
Best new model of 2015
This has to be the best model of the 2015 cycle. The model is so realistic, and has so many great motorised features - dumping cargo hold, rotating grabber, full range of functions via the air pump. Although there are so many parts, the model was fairly easy to put together. The building manual was very easy to follow as always and bags numbered for ease of identifying. The one big thing over other years is the introduction of pre cut hoses which was a real bonus. no more worrying that you have to cut the pipe to the exact length or risk being short on another section! The only thing I have trouble/some difficulty with was the number of pipes that I had to feed through the centre of the grabber arm.
Most helpful negative review
Average Rating:(1.0)out of 5 stars
It's LEGO fault.
Still waiting on missing pieces.
This has to be the best model of the 2015 cycle. The model is so realistic, and has so many great motorised features - dumping cargo hold, rotating grabber, full range of functions via the air pump. Although there are so many parts, the model was fairly easy to put together. The building manual was very easy to follow as always and bags numbered for ease of identifying. The one big thing over other years is the introduction of pre cut hoses which was a real bonus. no more worrying that you have to cut the pipe to the exact length or risk being short on another section! The only thing I have trouble/some difficulty with was the number of pipes that I had to feed through the centre of the grabber arm.
Still waiting on missing pieces.

Frequent mentions

1-10 of 73 reviews
Average Rating:(5.0)out of 5 stars

Arocs 3245

This is the first new LEGO I have built in over 25 years, and marks my return to one of the greatest pleasures of my earlier years. And what a return! This is without a doubt the most impressive Technic model I have ever seen or built, and I would recommend it to anyone without any hesitation whatsoever. This model has it all: power functions, pneumatics, and it also looks the part too; this is a really nice vehicle which really looks close to, if not better in some respects than the real thing.

Pros:

- Power functions driving an impressive gear train to select four different functions: tipping the truck bed, extending the stabilisers, rotating the grab arm and driving the compressor

- Impressive pneumatic functions: two pistons control the angle of the grab arm, one extends the arm and a final small one opens and closes the grab itself

- Straight six cylinder engine driving (or driven by!) by the eight rear wheels, which have suspension and a separate differential for each axle

- Incredibly detailed cab with Mercedes-Benz livery, which tilts to expose the engine just like on a real truck

- Front steering via a hand-of-god knobs is well done, with independent suspension for each wheel

- Locking back door on truck bed, which opens during tilting

- Cab and platform on the side of the cab are sized appropriately for Technic figures from earlier models, so they can drive the truck and operate the controls (see the photos!)

- Clutch gear on the grab arm turn/stabiliser extending functions prevents damage when these reach their limits and come to a hard stop

- The pneumatic lines are routed through colour-coded T elements which makes some of the instructions easier to follow

- The diagrams in the instruction booklet were easy to follow, and perhaps broken up into too many steps compared with the earlier instructions I was used to, but were easy to follow; I only made a few mistakes due to my own fault and these were thankfully easy to rectify without dismantling too much!

All the controls for the functions operate well, with a few caveats I'll mention below.

(Very minor) cons:

- Due to the weight of the grab arm, the arm can drop abruptly when lowering the arm; this can be prevented by being very careful with the valve operation, so that the air doesn't escape very quickly. This isn't a design flaw in the model as such, it's a limitation of how the pneumatic valves operate. The weight can also mean it takes a good bit of time to raise the arm since it takes the compressor a while to build up enough pressure in the system.

- The amount of pneumatic lines running through the centre of the turntable (8) makes the turning action ever so slightly stiff and this can lead to jerky turning motion due to the clutch slipping. This got better on my second build of the model due to dust making the lines stick to each other less--when brand new out of the box there was a good bit of friction between them. Fiddling with the precise amount of slack and routing of the lines helped a little bit, but didn't eliminate this entirely.

- The compressor and tilting mechanism could have used a clutch gear; when I dismantled it to build the alternative model, the axle driving the compressor had noticeable wear I think due to the load put on it when the pressure is high and all the pistons are at their limits, and the linear actuator ground horribly at the limits of the bed tilt if not quick enough to stop the motor

- The stickers aren't compatible with the alternative build; it uses a reversed arrangement of two of the pneumatic valves, and some of the valve control stickers are out of place on the alternate model due to where you need to place the pieces. The valve arrangement could have easily been made the same--it's just a matter of switching the routing of the lines, I think.

- The instructions showing the routing of the pneumatic lines could have been clearer. I was not much in doubt of which line went to which nozzle of which valve, but the spatial arrangement of how the lines were routed around each other was not as clear as it perhaps could have been.

Note that these are very minor criticisms, and I have absolutely no regrets about purchasing this model. It was an absolute blast to build, with very different parts to it to make it not get too repetitive -- the main chassis and engine, the gear train, the pneumatic arm, the cab, and the bed. Seeing it come together bit by bit was great! And I've spent hours playing with it after building it. The slow, majestic sweep of the truck bed tilting up and down, the rapid open and close of the grab, and the graceful raising of the grab arm are all just a wonder to behold. The amount of functionality crammed into the model is incredible, and the result is a technical wonder you'll marvel at for hours.

Helpful?
Average Rating:(5.0)out of 5 stars

King of the road

From start to finish this model keeps you on your toes, no short cuts allowed or not reading the page properly as I found out the hard way, one small axle does a lot of work. Amazed how every thing was crammed into such a tight space whilst still giving all the functions of the real machine. The pneumatic system, extending boom excellent fun, the controls are very sensitive till you get used to them. The size of the model is excellent, you can get loads into the tipper and the suspension works a dream. Model B looks another excellent build. Excellent flag ship model for 2015.

Helpful?
Average Rating:(5.0)out of 5 stars

42043 Mercedes-Benz Arocs 3245. Best Birthday Gift

This is what a 2.793-piece set gives you, at $229.99 you get one of the best Technic sets in Lego history. The 42043 Mercedes-Benz Arocs 3245 and it's B-Model Arocs 1845 is the successor to the well-received 8110 Mercedes-Benz Unimog U400, whereas the latter was designed as an all-around go anywhere model truck, the Arocs is a heavy duty construction truck, think of it as a Mercedes-Benz Actros that went to the gym and decided it will work at construction sites for most of its life cycle. The biggest factors I was worried when I first heard Lego was making another Mercedes-Benz model were if the truck has a dually setup and a proper Straight-6 engine which I'll get covered throughout my review. First things first, this is a superset and currently holds the record for being the biggest set in Technic history and the third set to pass the 2,000-piece mark that was a feat made by it's predecessor 8110 when it came out with 2,048 pieces. The truck is not quite as striking in size as the Unimog but you can tell that it's big because of the striking height and the amount of detail it has. This set is not your usual "I'll do this is 8-12 hours straight" which I'm fond of doing when I get my large Lego sets. It took me close to 20 hours spread over 5 days to complete it, you'll appreciate every detail put in this model as you complete the 6 sections (I decided to modify/ change some parts that's also why I have nearly 20 hours put in this build). Bags came numbered to 6 sections so even if it is a challenging build you won't have a hard time trying to figure out where's that part which I really appreciate from Lego. Being based on an actual truck, the 42043 has details like a working suspension system, a proper drivetrain, and dually tires. As far as the suspension is concerned, this is one of the most advanced one I've seen in a large Lego truck after 2 years of buying vehicle sets, the front suspension stands firm to hold the weight and the same goes over the rear, Lego used the new ball and socket suspension parts to replicate the real truck's leaf spring setup, for a truck this scale the suspension works very well. An industry standard among heavy trucks (Class 8 and above) is the usage of Inline-6 cylinder engine, these are large displacement units which compared to V-8s, V-10s, V-12s are very efficient and both A and B models feature the same I-6 setup, you roll the truck you can actually hear the cylinder heads moving and it is connected to the rear axles. As far as differentials are concerned this has 2 of them which was missing from the 8258, 8285 and 9397 models as a result you don't to buy the differential or find one from your spare parts bin. another touch of detail that I really are the wheels and tires, yes they are small (I wished Lego designed a larger diameter tire for this one) but you get 12 of them and the real truck's dually setup was carried over to the model we have. The HOG steering system is one of the best I've seen, it's not a new approach but a rare method used for Technic sets (I guess), you have these beacon lights that are connected to the HOG steering shaft the steers all 4 front wheels and this results to "hidden" system which in turn gives the truck a smooth looking finish. One of the set's biggest highlights is the Pneumatics 2.0, these are longer and stronger pneumatic cylinders with a redesigned port for connecting the pneumatic pipes (these pipes come pre-cut just get a ruler to make sure you're connecting the right size to the right spot) and they do the lifting duties for the crane which almost looks like the Palfinger units we see in Unimogs, Zetros, Actros, and Arocs trucks. These units are strong and able to hold air better, at it's end is a pair of clamshell buckets that can hold small parts and I really love this approach. While previous sets featured an M-Motor to do all the Power Functions features, this and the 42042 follows the footsteps of the 9398 and 41999 Rock Crawler sets, it's strong but not as crazy strong as an XL-Motor. It has enough torque to power all motorized features you get in this set. Outriggers, they feature new parts which is also featured in the pneumatic crane, the new design is 14M long and is strong enough to withstand stress when extended and used to lift the truck's front section and NO you don't push the the manually operated parts to it's maximum because it's not really going to work, you might end up breaking a small gear because that's not how it's designed. You operate the outriggers to the extent it will make the truck stable while operating the crane. Tipping function is superb, there is only one large linear actuator but it works seamlessly, the bed felt small for me so I made my version taller, still works fine. While some might complain about the outriggers that they are suited for terrain or over similar environment let me point out that this model - based on the Arocs 3240 grounder - the type of truck you'll see in construction sites and not in mining sites so it's much more of a "I'll go the site and clear out large stones, sand what have you" it's basically a road going truck with construction in mind. You get to play it's functions even better with the new transmission pieces first introduced in the 42039 Le Mans car, unlike the old transmission piece, this one holds the other functions steady and not move, and YES you can operate 2 functions at once without fully damaging the set though I still wouldn't do that. A note when building the crane too: As it rotates to only 180 degrees, it will be achieved if you test and just bolt the pipes in, mine works just fine and so far I haven't encountered it not doing the 180. I guess it's just on how it's built by it's owner. The cab design is clean and you can actually move it to reveal the Straight-6 engine underneath, doors open and there's even a handle and extra sidestep on the driver's side. I did some video research on the truck too and I found that there is an Arocs model that features the 3-slat design for it's grill, the video is in Youtube and it was released just right at the same time the Arocs was. Lego did an amazing job designing that "toothed" grill along with the use of flick-fire missile parts to hold the flat panels. There is one thing that really caught my attention when building this model, I had to call Lego Customer Service because one of the bags (bag tagged #3) was opened inside the set, I was supposed to build it on my birthday November 2nd but was forced to do an early build because of this issue well luckily the bag was only opened and wasn't missing any parts because that will have been a bigger headache. I hope the bags are tougher to avoid this little issue. Your people at Customer service are very courteous and assured me if there was indeed a missing piece it will be sent to me. SO will I recommend this set? YES, get this and you will not regret it. A fantastic set for young truck lovers and collectors of any age, it clearly achieves it's purpose as a toy that is a sold 100%, tons of detail and I can spend all day just staring at this set, I think I have never seen a very detailed Lego Technic set as much as the 42043 Arocs is right now. For one to even fully appreciate the set in it's entirety I wouldn't make it RC I mean that's just how I see it, that little kid in me still wants to be the hands on collector, operate the functions and make sounds as if it was really real. I had such a great time building this set that recommend this to every Lego fan out there, as a purchase or gift I'm sure you'll never regret spending $230 for this big guy! 100/100

Helpful?
Average Rating:(5.0)out of 5 stars

A Truck Load of Awesome!!!

This was great fun. Took my time and made the build last for 18 hours. 6per day on a Fri, Sat and Sun. A bit pricey but totally worth the money. Lots of great pieces and new ways of making incredibly cool functions. The chassis suspension, differentials and drive-shaft were my favorite part. It looks amazing from underneath when you pick it up and look at the final product.

Helpful?
Average Rating:(5.0)out of 5 stars

Best new model of 2015

This has to be the best model of the 2015 cycle. The model is so realistic, and has so many great motorised features - dumping cargo hold, rotating grabber, full range of functions via the air pump. Although there are so many parts, the model was fairly easy to put together. The building manual was very easy to follow as always and bags numbered for ease of identifying. The one big thing over other years is the introduction of pre cut hoses which was a real bonus. no more worrying that you have to cut the pipe to the exact length or risk being short on another section! The only thing I have trouble/some difficulty with was the number of pipes that I had to feed through the centre of the grabber arm.

Helpful?
Average Rating:(5.0)out of 5 stars

A Awesome Set

This set is AWESOME!!! I recommend this product a lot!! It is worth the money! This set has a lot of play-ability to it! It is a HUGE step up from the Lego Technic Unimog!! I REALLY recommend this set to any type of Lego fan because it is fun to build and play with!!! The new pneumatic system works great! I will never regret buying this set!!!

Helpful?
Average Rating:(5.0)out of 5 stars

Best Technic Ever

This was definitely the best Lego Technic I have ever built. It has a lot of pieces including some I have never seen before. The rods that attached to the excavator where unique. They were kinda hard to attach. All the functions of the final product are amazing. Overall, it was awesome.

Helpful?
Average Rating:(5.0)out of 5 stars

Remarkable Set

This truck is masterfully designed and works like a charm! The steering system is ingenious along with the suspension system. The outriggers go out without a hitch, the tipper body tips nice and smoothly, the crane rotation works well to its limits, and the pneumatic pump seems to run a little slower than it should, but that could be because of the batteries I put in the battery box. The building process was enjoyable the entire time and a little confusing at some points with regards to how to attach some parts to some areas. This set has only 1 major problem, the ground clearance under the outrigger feet. There is hardly enough space there to fit a 1 stud tall piece under neath. This issue almost renders the entire suspension system useless. Luckily this problem is easily fixable. All that has to be done is to replace the red 7 stud long beam with a shorter beam and the problem is solved. Other than that issue this set is otherwise issue free! The cab is just incredible in the amount of detail that it has! The extra side mirrors are a great touch and the Mercedes emblem on the front is very impressive. The grill is ingeniously designed and the doors are best I've seen on a Lego set! I like the fact that this set has dual tires on the rear axles because that's something that has been missing from Technic sets for far too long. The dual axle drive is also a nice, realistic feature that's been missing for too long. This set even has yellow tire stoppers included in the rear! A very realistic and nice detail there! The crane is full of LOTS of pneumatic tubing and the tubes can get in the way of other tubes during the building process. This mainly occurs in the early stages of the crane build when there are still tubes being attached to the valve switches though. The crane works really well and the new pneumatic cylinders are great! The cargo bed is stunning with its size and load capacity! The lock feature on the flap of the cargo bed is amazingly simple and effective. Overall I give this set a 9.9/10 because of the ground clearance issue. This set is definitely up there in complexity and requires a lot of patience to finish the long building process.(the instruction booklet is 471 pages long after all) This is an incredible set and a definite must have for any big Technic collector or even just a general Technic fan with a decent amount of Technic experience! I would recommend this set to any body that likes complex and functional sets!

Helpful?
Average Rating:(5.0)out of 5 stars

Amazingly detailed model

Received this as a Christmas present, and knew I was going to love it. the level of detail just from the images suggested the high quality of the build. From start to finish I thoroughly enjoyed the build with the instructions making life so much easier, the new power features are an absolute joy to use (although they were fiddly to fit) and with the added purchase of power led lights, really makes the model come alive. Highly recommend!

Helpful?
Average Rating:(4.0)out of 5 stars

Epic model - requires patience!

This thing is huge, physically the biggest Technic model i've built and the most complex (currently half way through the 911 which i'm finding easier and more enjoyable!). It does get a little repetitive and arduous at times, its not a model for those who want a quick and exciting build but once you battle through the end result is satisfying! Some of the pipework routing in the manual is rubbish... you have to figure the odd bit out as its not clear in the instructions at one point, luckily its logical. One reason i bought it is its the modern version of kid 8868 which i had as a kid (and looks like a toy in comparison to this one!)

Helpful?

Customer Q&A

Get specific details about this product from customers who own it.

Ask a question

If you would like to share feedback with us about pricing, delivery or other customer service issues, please contact customer service directly.

Policies & Plans

Pricing policy

About our prices
We're committed to providing low prices every day, on everything. So if you find a current lower price from an online retailer on an identical, in-stock product, tell us and we'll match it. See more details atOnline Price Match.

webapp branch
Electrode, Comp-559c0c22-5015-4671-800a-2c759bd0c557, DC-eus2-prod-a3, ENV-prod-a, PROF-PROD, VER-37.3.0, SHA-b3134fce56061453926ca6f342a65ac5c917ad96, CID-50e1efa0-007-174a951f2e3d19, Generated: Sun, 20 Sep 2020 02:22:34 GMT