8275-1: Motorized Bulldozer

Nothing can stop the incredible Motorized Bulldozer!

100% pure power -- it's the ultimate LEGO TECHNIC creation! With its immense size and remote-controlled Power Functions, this giant yellow machine is the king of the construction site. Set it in motion at the push of a button and send it to do your bidding. Working pistons, turning treads, and other details that move and function just like the real thing! Raise and lower the front blade and the ripper on the back using the remote control! Use the remote control to drive and steer the Bulldozer! Bulldozer measures 18" (46 cm) long and 7" (18 cm) high! Includes remote control, 2 receivers, 2 motors, 2 XL motors and a battery box! Requires 6 AA (1.5V) and 3 AAA (1.5V) batteries, not included.

Instructions and parts list

Instructions for this set can be downloaded from LEGO.com:

Filename File size Format Notes/Region
4515178.pdf 11317Kb Book 1/3
4515179.pdf 14109Kb Book 2/3
4520319.pdf 7927Kb Book 3/3
4529123.pdf 8463Kb Book 1/3
4529125.pdf 10387Kb Book 2/3
4533636.pdf 11364Kb Book 1/3

Instructions for this set may also be available at Peeron.

A parts list for this set may be available at BrickLink and/or Peeron.

Reviews

 

0.3
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8275: Motorized Bulldozer
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8275
Motorized Bulldozer

A Must Buy

Posted by Craig Seifert in Norway on 22 January 2010

This recently showed up again in the Lego online shop for about £75. If you add up the cost of the separate PF parts this comes with it’s almost the same price. Unfortunately it’s got quite a high demand and was sold out. I got mine at a lot more but it’s still very much worth it.

The instructions are great. You don’t really know its coming together until the end. I had piles of pieces left with only about 20 steps to go! There are 3 books in total.

This set harks back to studded parts. And in many cases not for any real function. In fact this set has the most non-specific technic sets I have seen for ages. Lots of plates and studs. Good to see and this model looks great for it. Even without stickers.

The tracks are a novelty. The way this model spreads its weight onto the tracks with 6 little wheels on either side is useful to know for MOCs.

There are a lot of cables in this model and I found myself carefully routing them. The cables themselves are delicate and require care when bending round corners etc and undoing twitsts. If you do not get the correct routing from the XL motors to the IR sensors you will find they don't reach, something I had difficulty with.

The model is far wider, taller than and almost as long as the 8258 crane truck with the ripper extended. The size of the box backs this up, its big.

The 2 XL motors give this model a good amount of shove. There is surprisingly little gear reduction yet the heavy model can climb steep slopes and push/pull a surprising amount of weight.

I am new to the IR remote functions and I was pleasantly surprised with the range and control it gives. This model is set out so channel 1 allows each switch to control either track and channel 4 so that each switch deals with either the ripper or the blade.

The model is packed with features the motors, battery and IR sensors are all packed into the compact body. The PF functions are superbly implemented. Great speed and strength of motorisation and no gear crunching at the limits like you get in so many other PF sets. The battery box slides in and out really easily making battery swaps easy. Yes the ripper can get in the way but with 4 pins it can be removed easily.

The front blade is not perfect. The sides are a bit fragile and the arms which come back to attach mid model have a lot of lateral give in them. Actually when you push something the blade pushes against the engine grill on the main body which provides rigidity. Those cylinders above the blade are not for real. The blade is raised by the rotation of a shaft which lifts the blade via arms, just in front of the engine, its not linear actuators.

The rear ripper is better than I expected. It is strong enough to lift the rear of the model. This is operated by a worm wheel.

Its worth noting the little cab doors open, it looks like there are towing points at the pack and the engine cover opens. Of course the engine is only driven by one track but I do not see how it could be done otherwise.

I bought this for parts but I love it so much I will keep it built for a good while. An essential purchase for any Technic fan and by far the most functional and interesting model of late, even if it has slightly less parts than other flagships.

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8275
Motorized Bulldozer

Entertaining, to say the least.

Posted by strilight in N/A on 28 December 2009

Early on in my life I always liked tracked (vehicles with treads) vehicles. I'm not new to Lego, but to some, ah...complications, I wasn't up to date with Lego sets that where released anywhere from six months to a few years ago...But when I finally found this set...I wanted it. And my wish was granted this Christmas.

This set (is)...
Fun.
A challenge when building.
Actually looks like a real-life model.

To sum it all up, I like this set.

Pros.
All of the above.

Cons (Yes there are cons...)
1.When you're driving over a mountain of Legos and if ANYTHING gets in between the treads and wheel, the tread will snap.
2.The side plates on the blade come off easily.

Its worth it.


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8275
Motorized Bulldozer

"Awesome" doesn't do this justice

Posted by IrateCorpse in United Kingdom on 18 April 2009

Everything about this kit is fascinating. The build was an absolute joy and featured some of the best instructions I've seen from LEGO. It came together in such a way that it was almost like it wouldn't work, and then you turn the power on and, well, it blew me away.

The main reason I was so excited about this kit was that there were a lot of pieces I wanted which came with it (the sprockets/treads, the clutch gears, a V6 engine block and of course the Power Functions elements), the intention being to use them in my LEGO robots. Now that I've built it, though, I'm not sure I have the heart to destroy it. It's such a well conceived model; it's intricate, functional and beautifully accurate to the real thing! Just do a Google Images search for "caterpillar bulldozer" and you'll see what I mean.

A true masterpiece. Possibly my favourite non-robotic LEGO set ever.

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Motorized Bulldozer

Big, yellow, remote controlled but...

Posted by Erik van D in Netherlands on 20 December 2008

After 20 years without Lego this set was my re entry in the world of Technic. Looking for presents for my kids this set caught my eye several times. As a kid I was a Lego nerd and spend hours and hours playing with my Technic sets (mainly the 85x series). I just wondered if I would still like it.... And I was also curious to see if Lego had evolved much in 20 years.

And the answers are YES and YES! YES, I still like it and YES, the Lego from today is not like the bricks from my childhood. To be honest, I expected the new parts to be less challenging than the old Technic. In in some respect they are. Nowadays almost every imaginable shape exist while in the old days you had to figure it all out by yourself. But on the other hand, the top set of my childhood, the 8860, had 662 parts and this one has twice as much... And all the new parts make al lot more possible... At this moment I am far from getting used to all the new parts, in fact I was glad the dozer also had some good old fashioned studded beams... At least one part I recognised!

The build took me a fair few hours, also because the bags were not numbered. I think the instructions have become better too. More step by step than in the 70-s. The powerfunctions are definitly better. I remember the old 4,5V motor as being not too powerfull and with an axle that broke of several times. The new engines are powerfull and sturdy.

When finished you end up with a bit yellow monster. A LOT bigger than the 951 I also have. And riding it around with the remote is fun. Although the tracks do not have that much grip on a wooden floor. My 2,5 year old daughter also likes to ride it around!

All in all a very nice set and it got me hooked on (Technic) Lego again. I am now making al my old boxes complete (a lot of bricks got stepped on or vacumed up...) and rebuilding the old models. And that is big fun! I also ordered the fire truck (8289) as another modern set....

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8275
Motorized Bulldozer

Tracked vehicles are just cool!

Posted by Biggy on 24 September 2008

When I first saw this set I didn't know if it was worth it after getting the Crane Truck, but when I saw the box I just HAD to get it (I couldn't even wait for a sale!)

Because of the size of the thing it is very much worth sorting all the pieces into separate compartments before starting the build. At first I couldn't really figure out what part I was building but as the build progresses I started to get more and more impressed with the entire unit.
The remote control system is simply fantastic in its simplicity and elegance and once you get this baby running you just feel: There is something eminently cool about driving a large tracked vehicle! The nice thing about the 4 channels for the remote control is that you can build two of these units and race them without interference between the remote controls! (or if you choose to disable the controls for the shovel then you can even run 4 of them!)

Even my 3 year old kids love driving this unit around the house, so even if you don't enjoy the build, you might enjoy the drive :)

Pros:
- A long entertaining build (not a lot of repetition)
- Driving a bulldozer is FUN (even for an adult!)
- Remote control is very robust and very configurable
- Lots of pieces and options for your own creativity

Cons:
- eh.... (yeah, it's THAT good)
- No longer for sale.

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