Beginner
≈ 5 h 45 minSuggested range3 h 15 min – 9 h 15 min
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Technic · SET 42028
Bulldozer
A yellow tracked bulldozer with a large front blade.
- Pieces
- 617
- Release year
- 2014
- Theme
- Technic
- Set number
- 42028
- LEGO recommended age
- 9+
- Archived regional retail price · Germany
- 39.99 €
Archived regional retail price in the stated market and currency. It does not establish the Italian launch price; no estimated currency conversion. Brickset ↗ · Reference checked on 22 October 2026
Official English name verified at: LEGO English archive ↗ · Checked on 26 October 2026.
TIME TO BUILD
How long does it take to build Bulldozer?
A starting point for planning your build. Times for each experience level are editorial estimates, not measurements submitted by HowLongToBuild users.
Editorial estimate · first build
Intermediate
≈ 3 h 45 minSuggested range2 h 15 min – 6 hExperienced
≈ 2 h 45 minSuggested range1 h 30 min – 4 h 15 minBased on one person building the set for the first time, following the original instructions and using numbered bags where supplied. Includes normal piece-finding and minor adjustments; excludes long breaks, filming, dismantling and modifications. Sources may use different methods. This range is neither a statistical interval nor a limit: your build may take less or more time.
How we estimate times · sources and method
Editorial assessment: A yellow tracked bulldozer with a large front blade. The open structure reveals connections and mechanical parts. A first build following the instructions, including normal piece finding; an adult may help when needed. Breaks, subsequent play and any alternative models are excluded. For older sets, unnumbered bags or previously mixed pieces may prolong sorting. No verified timed build: indicative values with substantial variation.
Sources do not always specify the builder’s experience. The three experience bands are our editorial assessment, based on the complexity of the set and individual accounts where available.
- LEGO · set-specific instructions ↗
Official name, pieces, age and imagery; no timed building data.
- LEGO · set manual ↗
Document for this set number. The duration is an editorial estimate, not a LEGO timing.
Checked: 26 October 2026 · Method v1.0 · Limited reports; not a statistical average.
BUILT BY THE COMMUNITY
Yours could be the first building time.
0 reviewed solo building times.
No solo building times have been reviewed yet. You can still find editorial estimates under Suggested times.
Log your buildBuild your own story.
Save this set to your collection, track your progress and share your building time.
Create a free account →BEYOND THE BRICKS
Did you know?
Inside the set
Wide blade
The large yellow blade stands ahead of the two tracks.
LEGO sourceLong frame
The open structure reveals connections and mechanical parts.
LEGO sourceBeyond the set
The stories, places and inventions behind your build.
Tracks for soft ground
In 1904, Benjamin Holt tested a tracked tractor, replacing wheels to tackle ground where heavy vehicles sank. An agricultural solution helped shape earthmoving machinery.
Read the full story
Holt’s problem was practical: a heavy tractor needed to work on ground where wheels struggled. The 1904 experiment belongs to the agricultural history of tracks, before Caterpillar was formed in 1925. Modern construction machinery inherited a solution developed over time, rather than inventing it in one model.
Yellow came later
Caterpillar was formed by the merger of Holt and C. L. Best in 1925. Early machines were grey with red details; the characteristic Hi-Way Yellow was adopted in 1931.
Read the full story
Hi-Way Yellow with black trim replaced the earlier grey-and-red scheme in 1931. In 1979, Caterpillar Yellow replaced that first yellow shade. The company’s archive distinguishes these stages, which helps explain why historic photographs and models from different periods do not all share exactly the same livery.
Expanded stories updated on 29 October 2026
Written by HowLongToBuild · Sources are linked with each story · Checked on 26 October 2026. Historical facts and story details refer to the context described.
THE COMMUNITY’S EXPERIENCE
What was it like to build?
Three separate scores from 1 to 10. For difficulty, 1 means very easy and 10 means very difficult.
No approved ratings yet. Scores are never generated by this site or inferred from the recommended age.
Sign in or create an account to rate this set →Building tips from the community
Specific steps, useful checks and sticking points. Contributions appear after moderation, in their original language. Do not upload instruction pages or personal contact details.
No approved tips yet.
Sign in to contributeSET THE MOOD
A soundtrack for your build
· Selected for the subject and atmosphere
Electronic pulses and open melodies provide movement without a constant action-film crescendo. They accompany landscapes and travelling vehicles through a sense of exploration.
OUR PICK
Dive
Tycho
Rhythmic and livelyEditorial suggestions, not official soundtracks for the set. External services may require an account or subscription; editions and availability can vary by country. Suggest another soundtrack →
Report a problem with this set →
YOUR NEXT BUILD
You might also like
Sets from the same theme or with similar suggested building times. The ranges shown are for intermediate builders.
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
McLaren Senna GTR™
830 pieces · 10+
2 h 15 min – 5 h 30 min
Suggested time · Intermediate
Same theme, a new build