Cement Mixer
42112-1 Technic 2020 1161 parts 3.1% catalog rarity Intermediate
The LEGO Technic Cement Mixer (42112-1), with its 1161 pieces, meticulously recreates a vital construction vehicle. This detailed model features 8 robust wheels and an opening driver’s cab, providing access to the internal mechanisms. A prominent large mixing drum simulates real-world operation; it rotates automatically as the truck is pushed or can be turned manually via a separate gear. For unloading, turning the drum counterclockwise dispenses the 'concrete' — represented by 100 1x1 LEGO bricks. An articulated funnel system, controlled by a dedicated handle, guides the 'concrete' into position, while a moving motor detail adds to the model's authentic feel and complex Technic functionality. This replica stands as a functional display piece showcasing engineering principles.
Parts Inventory
Showing the first 12 rows of the parts list (1161 pieces in total). The full list loads automatically.
| Part | Qty | LEGO price each |
|---|---|---|
| 2× | Check price → View | |
| 19× | €0,29 | |
| 3× | €0,38 | |
| 2× | €0,38 | |
| 2× | €0,38 | |
| 3× | €0,38 | |
| 2× | €0,36 | |
| 8× | €2,71 | |
| 1× | €0,11 | |
| 3× | €0,36 | |
| 16× | €0,08 | |
| 100× | €0,05 |
Catalog rarity
How common are the parts in Cement Mixer?
4 of 128 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.
Theme average
6.5%
All sets
6.7%
Least common in our catalog
More Technic sets
Browse more LEGO Technic sets related to Cement Mixer, including models from 2020 and other sets in the same theme.
Build DNA
Parts inventory insights for Cement Mixer
1,161 pieces puts this build +79% against the average Technic set and +160% against the average 2020 release.

Vs average Technic set
Average Technic set: 650 pieces across 454 other sets.
Vs average 2020 set
Average 2020 set: 447 pieces across 450 other sets.
Color profile
Dominant color
Black
Unique parts
10.9 pieces per unique type
Repeat factor
Average pieces per unique type.
Most used part
Technic Pin with Friction Ridges Lengthwise and Center Slots
161xResults are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.
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