Earthmover Showdown: Top 10 Biggest Dozers in the World

Considered the first piece of heavy equipment ever made in the twentieth century, a bulldozer- a.k.a. tractor, or dozer, is a large earthmoving machine. It has a weight range usually between 18 and 100 metric tons, and it is used to clear land and material on large-scale construction and mining projects. Many manufacturers have developed iconic earthmovers that are being used today to complete prestigious projects across the world. In a nutshell, a dozer can be used on construction sites to clear land, grade for roads and infrastructure, or on quarries and mines to haul large sums of ore and earth, and originally, on farms and agricultural lands. Without further ado, here’s ten of the world’s biggest dozers ever made.

The 10 Biggest Dozers in the World

The biggest dozer in the world is the Acco Super Dozer, at a 183 metric tonnes operating weight. The dozer never really operated, though, and is now merely considered a historical piece of engineering.

Here’s a quick rundown of the top 10 biggest dozers ever made, in descending order:

1. Komatsu D575A:

At number one is the Komatsu D575A-3 SD crawler dozer. The “SD” stands for Super Dozer, and with 153 metric tonnes, it is indeed a super dozer. In fact, it is the largest Komatsu dozer ever built by the Japanese manufacturer. Since the Acco Super Dozer was never utilized for its purpose, a lot of people consider the Komatsu D575 to be the largest bulldozer ever made. Though still in production, this particular model can be found in the archival product list on Komatsu’s website, since it has only been custom built specifically for large-scale mining operations in Australia and elsewhere.

2. CAT D11:

The second runner up is Caterpillar’s D11- which is the largest CAT bulldozer in production right now. Al Marwan Machinery proudly owns and operates one of these earthmoving marvels, and it’s currently at work on Saudi Arabia’s NEOM mega-project. The 850 HP dozer comes with several blade types with a capacity up to 34.4 cubic meters. 124 metric tonnes makes it the biggest CAT bulldozer in the world.

3. Komatsu D475A:

This is the second to the largest Komatsu dozer, the D475A bulldozer. It boasts 112.6 metric tonnes of weight, coupled with a 1,040 HP diesel engine, making every push very much worth the money. As a part of Al Marwan’s rental fleet, this crawler dozer has completed a few major projects around the UAE, specifically on Arada’s Aljada development project.

4. Shantui SD90:

With 106 tonnes, this machine is the largest bulldozer made in China. The Shantui SD-90 crawler dozer has an electrifying 962 horsepower engine, making it a sought out fit for large scale mining projects in China and south-east Asia.

5. Fiat Allis FD50:

Usually written Fiatallis or Fiat-Allis, the company was actively producing heavy equipment until the late 1990’s, most notably dozers and loaders. The FD50 was the company’s largest bulldozer, standing at 80 metric tonnes. Throughout its years in business, the Fiatallis brand went into several joint ventures with global machinery manufacturers such as Hitachi and Case, before the brand got officially taken down off the market in 99.

6. CAT D10:

The second biggest Cat dozer in the world is the D10, with up to 77 tonnes operating weight. According to Wikipedia, D10s feature the highest drive system among their precedents. Mainly because of the elevated sprocket system, which was first applied in 1977. It separated the suspension from the tractor's drive train, dramatically reducing stress on both and increasing their durability.

7. Liebherr PR776:

The large PR776 is the biggest Liebherr dozer in production today. Manufactured in Germany for the European market, the 6th generation Liebherr PR776 Litronic crawler dozer has an operating weight of 73 metric tonnes, and a 768 HP diesel engine. It can be fitted with a large carrydozer blade which has the capacity of 22 cubic meters.

8. CAT D9

Coming in strong as the third biggest CAT bulldozer in the world is the Caterpillar D9 crawler dozer. The dozer features either the CAT C18 ACERT (D9T) or the 3408 HEUI (D9R) diesel engines, topping an electrifying 452 horsepower. What makes this tractor a top choice for the construction industry is its blade options, from 13.5 to 16.5 m3. Al Marwan Machinery has the D9 GC and the D9R configurations available for sale today.

9. John Deere 1050K:

Second to last on our list is the Deere 1050K crawler dozer, which is the largest John Deere bulldozer ever built. Manufactured in the US for medium scale construction and agriculture projects, the 48-ton tractor features a Final Tier 4 diesel engine capable of outputting 350 horsepower.

10. CAT D8:

At 40 tons, CAT D8Ts are among the most popular dozers on the market when it comes to general earthmoving tasks on construction sites. This is due to their highly versatile build, with multiple blade and ripper options, making them adaptable to several applications. There are over 33 Caterpillar D8 bulldozers on Al Marwan’s fleet between the conventional track and LGP configurations available for rent or sale.

Whether you work in roadbuilding, quarries or mines, land clearing, site development, or general contracting, dozers become an indispensable part of your earthmoving fleet.

Owning two of the largest bulldozers in the MENA region, Al Marwan’s rental fleet boasts a number of CAT D11s and Komatsu D475A-5s on their rental fleet, as they’re easing supply for the high demand on robust earthmoving machinery. With just a few clicks, customers can access a wide range of used bulldozers for sale. For time-sensitive needs, their catalog also includes dozers for rent at varying size classes from 40 all the way up to 108 tons.