4x4 Mercedes-Benz Zetros Trial Truck
42129-1 Technic 2021 2131 parts 2.9% catalog rarity Advanced
The LEGO Technic 4x4 Mercedes-Benz Zetros Trial Truck (42129-1) recreates the robust off-road vehicle with 2131 pieces, showcasing formidable engineering. This detailed model features fully independent working suspension on all four wheels, ready to tackle simulated rough terrain. Builders can open the cab doors and hood, revealing a meticulously detailed engine bay complete with a spinning radiator fan. A service hatch provides access to inspect the internal gearbox mechanisms. Unique to this Technic set is its CONTROL+ app integration, enabling precise steering and remote activation of differential locking for enhanced maneuverability. The app also offers challenges, extending the play beyond construction. This model embodies the Zetros's rugged capabilities.
Parts Inventory
Showing the first 12 rows of the parts list (2131 pieces in total). The full list loads automatically.
| Part | Qty | LEGO price each |
|---|---|---|
| 6× | €0,18 | |
| 1× | €0,15 | |
| 2× | Check price → View | |
| 6× | Check price → View | |
| 1× | €0,12 | |
| 1× | €0,12 | |
| 41× | €0,29 | |
| 2× | €0,10 | |
| 1× | €0,06 | |
| 16× | €0,25 | |
| 8× | €0,25 | |
| 1× | €0,38 |
Catalog rarity
How common are the parts in 4x4 Mercedes-Benz Zetros Trial Truck?
7 of 245 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 4x4 Mercedes-Benz Zetros Trial Truck, including models from 2021 and other sets in the same theme.
Build DNA
Parts inventory insights for 4x4 Mercedes-Benz Zetros Trial Truck
2,131 pieces puts this build +229% against the average Technic set and +298% against the average 2021 release.

Vs average Technic set
Average Technic set: 648 pieces across 454 other sets.
Vs average 2021 set
Average 2021 set: 536 pieces across 471 other sets.
Color profile
Dominant color
Black
Unique parts
11.5 pieces per unique type
Repeat factor
Average pieces per unique type.
Most used part
Technic Pin with Friction Ridges Lengthwise with No Center Slots
348xResults are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.
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