How many pieces does the LEGO 4x4 Mercedes-Benz Zetros Trial Truck (42129-1) have?

The LEGO 4x4 Mercedes-Benz Zetros Trial Truck set (42129-1) contains 2131 pieces. It was released in 2021 as part of the LEGO Technic theme.

How can I find missing parts for LEGO set 42129-1?

On BrickMissing you can check which parts from the LEGO 4x4 Mercedes-Benz Zetros Trial Truck (42129-1) you already own. Add your LEGO collection and we'll show exactly which of the 2131 pieces you're missing and which you already have.

Can I build the LEGO 4x4 Mercedes-Benz Zetros Trial Truck with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 2131 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO 4x4 Mercedes-Benz Zetros Trial Truck from?

The LEGO 4x4 Mercedes-Benz Zetros Trial Truck (42129-1) belongs to the LEGO Technic theme. You can browse all Technic sets on BrickMissing to find more sets from this theme.

4x4 Mercedes-Benz Zetros Trial Truck - View 8

4x4 Mercedes-Benz Zetros Trial Truck

🏷️ 42129-1•🎨 Technic•📅 2021•🧱 2131 parts•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

🧱 2131 parts

Part	Color	Qty
Technic Pin Connector Hub with 2 Perpendicular Axles 10197	Dark Bluish Gray	6×
Technic Gear 8 Tooth [Reinforced] 10928	Dark Bluish Gray	1×
Flag 2 x 2 Square, Flat Clip Edge [Thick Clips] 11055	Red	2×
Flag 2 x 2 Square, Flat Clip Edge [Thick Clips] 11055	White	6×
Plate 3 x 3 11212	Black	1×
Plate 3 x 3 11212	Light Bluish Gray	1×
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle 11214	Red	41×
Plate Special 1 x 2 with Pin Hole on Top 11458	Dark Bluish Gray	2×
Slope Curved 2 x 1 No Studs [1/2 Bow] 11477	Black	1×
Technic Beam 1 x 5 Thin with Axle Holes on Ends 11478	Black	16×

Showing 10 of 245 parts

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Plate 3 x 3	11212	Light Bluish Gray	1×
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle	11214	Red	41×
Plate Special 1 x 2 with Pin Hole on Top	11458	Dark Bluish Gray	2×
Slope Curved 2 x 1 No Studs [1/2 Bow]	11477	Black	1×
Technic Beam 1 x 5 Thin with Axle Holes on Ends	11478	Black	16×
Technic Beam 1 x 5 Thin with Axle Holes on Ends	11478	Dark Bluish Gray	8×
Technic Panel Fairing #21 5L Small Smooth, Side B	11946	Dark Bluish Gray	1×
Technic Panel Fairing #22 5L Small Smooth, Side A	11947	Dark Bluish Gray	1×
Technic Panel 3 x 11 x 1	15458	Dark Bluish Gray	3×
Technic Panel 3 x 11 x 1	15458	Black	7×
Technic Axle 5 with Stop	15462	Reddish Brown	3×
Tile Round 2 x 2 with Hole	15535	Black	6×
Tile Round 2 x 2 with Hole	15535	Light Bluish Gray	1×
Slope 45? 2 x 1 with 2/3 Cutout [New Version]	15672	Light Bluish Gray	3×
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening]	18575	Tan	2×
Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle	18651	Black	42×
Technic Pin Connector Round 1L [Beam]	18654	Dark Bluish Gray	20×
Technic Pin Connector Round 1L [Beam]	18654	Light Bluish Gray	3×
Technic Pin Connector Round 1L [Beam]	18654	Black	23×
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)	18674	Dark Bluish Gray	1×
Plate Special 1 x 2 with Pin Hole Underneath	18677	Black	10×
Technic Gear 16 Tooth with Clutch on Both Sides	18946	Red	4×
Technic Driving Ring 3L	18947	Dark Bluish Gray	2×
Tile Round 1 x 1 with Hollow Bar	20482	Light Bluish Gray	1×
Motor, Medium, We-Do 2.0	21980	White	1×
Motor, Large, Powered Up	22169	Dark Bluish Gray	3×
Bar 2L with Towball	22484	Dark Bluish Gray	1×
Technic Pin Connector Hub with 1 Axle	22961	Dark Bluish Gray	20×
Technic Panel Curved and Bent 6 x 3	24116	Black	3×
Technic Panel Curved 7 x 3 with 2 Pin Holes through Panel Surface	24119	Black	2×
Tile Special 1 x 2 Grille with Bottom Groove	2412b	Black	5×
Tile Special 1 x 2 Grille with Bottom Groove	2412b	Light Bluish Gray	3×
Tile 1 x 4 with Groove	2431	Black	3×
Technic Axle 3 with Stop	24316	Reddish Brown	18×
Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end	25214	Light Bluish Gray	2×
Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end	25214	Black	6×
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]	2654	Black	2×
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]	2654	Trans-Clear	2×
Tile 2 x 3	26603	Black	2×
Technic Disc 3 x 3	2723	Black	1×
Technic Axle Towball	2736	Light Bluish Gray	3×
Technic Pin Connector Hub with 2 Axles	27940	Dark Bluish Gray	4×
Plate Special 2 x 2 with 2 Pin Holes	2817	Black	5×
Technic Steering Wheel Small (3 Studs Diameter)	2819	Black	1×
Technic Beam 1 x 4 Thin with Stud Connector	2825	Light Bluish Gray	8×
Slope Curved 2 x 1 with Stud Notch Right	29119	Dark Bluish Gray	1×
Slope Curved 2 x 1 with Stud Notch Left	29120	Dark Bluish Gray	1×
Lever Small Base with Black Lever	298c02	Black	1×
Plate 2 x 4	3020	Black	4×
Plate 2 x 3	3021	Light Bluish Gray	3×
Plate 2 x 2	3022	Light Bluish Gray	1×
Plate 1 x 2	3023	Light Bluish Gray	1×
Plate 1 x 2	3023	Black	4×
Plate 1 x 1	3024	Dark Bluish Gray	6×
Plate 1 x 1	3024	Trans-Orange	3×
Brick Round 2 x 2 Dome Top, Hollow Stud	30367c	Red	2×
Bar 4L (Lightsaber Blade / Wand)	30374	Black	3×
Bar 4L (Lightsaber Blade / Wand)	30374	Dark Bluish Gray	4×
Tile 2 x 2 with Groove	3068b	Black	3×
Tile 2 x 2 with Groove	3068b	Light Bluish Gray	1×
Tile 1 x 2 with Groove	3069b	Trans-Clear	2×
Tile 1 x 2 with Groove	3069b	Trans-Orange	2×
Tile 1 x 2 with Groove	3069b	Trans-Red	4×
Tile 1 x 1 with Groove	3070b	Black	2×
Tile 1 x 1 with Groove	3070b	Trans-Orange	2×
Tile 1 x 1 with Groove	3070b	Dark Bluish Gray	2×
Technic Steering Arm 5 x 1 with Towball Socket (Type2)	31794	Light Bluish Gray	10×
Technic Pin 3/4	32002	Tan	6×
Technic Link 1 x 6 without Stoppers	32005a	Dark Bluish Gray	1×
Technic Beam 1 x 11.5 Double Bent Thick	32009	Black	2×
Technic Axle and Pin Connector Angled #1	32013	Black	10×
Technic Axle and Pin Connector Angled #3 - 157.5?	32016	Dark Bluish Gray	2×
Technic Axle and Pin Connector Angled #2 - 180°	32034	Black	19×
Technic Beam 3 x 3 L-Shape Thin	32056	Black	12×
Technic Axle 2 Notched	32062	Red	33×
Technic Beam 1 x 6 Thin	32063	Light Bluish Gray	8×
Technic Axle 5	32073	Yellow	16×
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced	32123b	Light Bluish Gray	7×
Technic Axle and Pin Connector Toggle Joint Smooth	32126	Dark Bluish Gray	10×
Technic Beam 2 x 4 L-Shape Thick	32140	Black	10×
Technic Beam 2 x 4 L-Shape Thick	32140	Dark Bluish Gray	17×
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole	32184	Dark Bluish Gray	10×
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole	32184	Black	1×
Technic Axle and Pin Connector Angled #4 - 135°	32192	Dark Bluish Gray	4×
Technic Gear 12 Tooth Double Bevel	32270	Black	6×
Technic Beam 1 x 15 Thick	32278	Dark Bluish Gray	2×
Technic Beam 1 x 5 Thick	32316	Dark Bluish Gray	8×
Technic Beam 1 x 5 Thick	32316	Olive Green	4×
Technic Beam 1 x 5 Thick	32316	Black	21×
Technic Beam 1 x 4 Thin	32449	Dark Bluish Gray	10×
Technic Beam 1 x 3 Thick	32523	White	14×
Technic Beam 1 x 3 Thick	32523	Dark Bluish Gray	8×
Technic Beam 1 x 3 Thick	32523	Black	10×
Technic Beam 1 x 7 Thick	32524	Dark Bluish Gray	11×
Technic Beam 1 x 7 Thick	32524	Bright Green	5×
Technic Beam 1 x 11 Thick	32525	Dark Bluish Gray	21×
Technic Beam 1 x 11 Thick	32525	Bright Green	9×
Technic Beam 3 x 5 L-Shape Thick	32526	Dark Bluish Gray	8×
Technic Beam 3 x 5 L-Shape Thick	32526	Black	3×
Technic Beam 3 x 5 L-Shape Thick	32526	Bright Green	4×
Technic Pin Connector Perpendicular Long	32557	Light Bluish Gray	4×
Plate Round 1 x 1 with Hollow Stud and Horizontal Bar 1L	32828	Black	2×
Technic Gear 20 Tooth Double Bevel with Clutch on Both Sides	35185	Black	1×
Gear Shifter	35188	Orange	2×
Plate Special 2 x 2 Splat Gear with 6 Teeth	35442	Black	2×
Brick 1 x 3	3622	Light Bluish Gray	1×
Plate 1 x 3	3623	Black	4×
Plate 1 x 3	3623	Dark Bluish Gray	2×
Plate 1 x 3	3623	Light Bluish Gray	1×
Technic Gear 24 Tooth [New Style with Single Axle Hole]	3648b	Dark Bluish Gray	3×
Technic Pin without Friction Ridges Lengthwise	3673	Light Bluish Gray	3×
Technic Axle 4	3705	Red	3×
Technic Axle 4	3705	Black	5×
Technic Axle 6	3706	Red	5×
Plate 1 x 4	3710	Black	1×
Technic Bush	3713	Red	18×
Technic Axle 10	3737	Black	4×
Technic Axle Pin without Friction Ridges Lengthwise	3749	Tan	10×
Brick Round 2 x 2 with Axle Hole	3941	White	2×
Brick Round 2 x 2 with Axle Hole	3941	Black	2×
Brick Round 2 x 2 with Axle Hole	3941	Red	4×
Technic Connector Beam 3 x 3	39793	White	3×
Technic Connector Beam 3 x 3	39793	Black	2×
Technic Beam Frame 7 x 11	39794	Black	2×
Technic Pin Long without Friction Ridges, with Anti-Roll Notch	39888	Tan	10×
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	4032a	Light Bluish Gray	1×
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	4032a	Black	11×
Technic Beam 1 x 9 Thick	40490	Light Bluish Gray	1×
Technic Beam 1 x 9 Thick	40490	Black	4×
Technic Beam 1 x 13 Thick	41239	Black	15×
Propeller 8 Blade 5 Diameter	41530	Flat Silver	1×
Tile 1 x 8 with Groove	4162	Black	1×
Technic Beam 1 x 2 Thin	41677	Dark Bluish Gray	29×
Technic Beam 1 x 2 Thin	41677	Black	26×
Technic Wedge Belt Wheel [aka Pulley]	4185	Black	2×
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes	42003	Dark Bluish Gray	5×
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes	42003	Light Bluish Gray	12×
Technic Axle Connector with Axle Hole [Reinforced]	42135	Black	15×
Technic Axle Connector with Axle Hole [Reinforced]	42135	Dark Bluish Gray	10×
Technic Driving Ring Connector Smooth [2 rounded and 2 flat side walls]	42195	Red	4×
Technic Pin 1/2	4274	Light Bluish Gray	47×
Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot	42924	Black	128×
Technic Axle Pin with Friction Ridges Lengthwise	43093	Black	102×
Technic Beam 1 x 2 Thick	43857	Black	8×
Technic Beam 1 x 2 Thick	43857	Bright Green	4×
Dish 3 x 3 Inverted [Radar]	43898	Trans-Clear	2×
Dish 3 x 3 Inverted [Radar]	43898	Black	1×
Technic Axle 7	44294	Light Bluish Gray	5×
Dish 6 x 6 Inverted (Radar) with Solid Studs	44375b	Black	4×
Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Small Squared Pin Holes]	44874	Black	9×
Technic Axle 3	4519	Light Bluish Gray	48×
Technic Steering Wheel Hub with Planetary Gear Reduction	46490	Light Bluish Gray	4×
Clutch Outer Side with Axle Connector	46834	White	2×
Clutch Inner Side with Axle Connector	46835	Dark Bluish Gray	2×
Technic Tooth 1 x 3 with Axle Hole [Hollow Underside]	48267	Dark Bluish Gray	2×
Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]	48729b	Black	3×
Technic Pin Connector Hub Perpendicular 3 x 3 Bent with 4 Pins (Pin Ridges Along Part)	49130	Light Bluish Gray	2×
Wire Clip with Axle Hole	49283	Light Bluish Gray	1×
Wire Clip with Axle Hole	49283	Black	2×
Wire Clip with Axle Hole	49283	Red	2×
Wire Clip with Axle Hole	49283	White	2×
Animal, Bird, Duck / Duckling with Black Eyes, Orange Beak	49661pr0001	Yellow	1×
Technic Steering / CV Ball Joint Female 4L	52730	Dark Bluish Gray	6×
Technic Steering / CV Ball Joint Male 3L	52731	Light Bluish Gray	7×
Slope 30° 1 x 1 x 2/3 (Cheese Slope)	54200	Trans-Orange	2×
Slope 30° 1 x 1 x 2/3 (Cheese Slope)	54200	Black	1×
Technic Axle 8 with Stop	55013	Dark Bluish Gray	3×
Wheel 43.2 x 26 Technic Racing Small with 6 Pinholes	56908	Light Bluish Gray	4×
Technic Axle 5.5 with Stop [Rounded Short End]	59426	Dark Bluish Gray	1×
Technic Axle Connector Smooth [with x Hole + Orientation]	59443	Dark Bluish Gray	29×
Cone 1 x 1 [Top Groove]	59900	Black	2×
Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole	60483	Light Bluish Gray	8×
Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole	60483	Dark Bluish Gray	11×
Technic Beam 3 x 3 T-Shape Thick	60484	Black	13×
Technic Axle 9	60485	Yellow	3×
Equipment Hose Nozzle / Gun with Side String Hole Simplified	60849	Black	2×
Technic Pin 1/2 with 2L Bar Extension	61184	Light Bluish Gray	2×
Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip]	61252	Light Bluish Gray	1×
Technic Pin with Friction Ridges Lengthwise with No Center Slots	61332	Black	348×
Technic Beam 3 x 0.5 Liftarm with Boss and Blocked, Squared Pin Hole	61408	Red	1×
Bar 1 x 3 (Radio Handle, Phone Handset)	6190	Black	2×
Technic Pin Connector Round [Slotted]	62462	White	6×
Technic Pin Connector Round [Slotted]	62462	Black	25×
Technic Panel Curved 11 x 3 with 2 Pin Holes through Panel Surface	62531	Black	4×
Technic Panel Curved 11 x 3 with 2 Pin Holes through Panel Surface	62531	Dark Bluish Gray	2×
Technic Axle and Pin Connector Perpendicular Triple	63869	Black	2×
Technic Axle and Pin Connector Perpendicular Triple	63869	Light Bluish Gray	19×
Bar 6L with Stop Ring	63965	Black	4×
Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick	64179	Black	4×
Technic Panel 5 x 11 x 1	64782	Dark Bluish Gray	5×
Technic Panel 5 x 11 x 1	64782	Black	1×
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole]	65304	Black	14×
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole]	65304	Light Bluish Gray	20×
Technic Axle and Pin Connector Perpendicular	6536	White	1×
Technic Axle and Pin Connector Perpendicular	6536	Dark Bluish Gray	34×
Differential Gear - 28 Tooth with Round Axle Hole	65413	Red	2×
Differential Gear House	65414	Light Bluish Gray	2×
Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Square Holes]	65487	Light Bluish Gray	32×
Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Square Holes]	65487	Dark Bluish Gray	4×
Technic Pin Connector Hub Perpendicular 3L with 4 Pins (Squared Holes)	65489	Light Bluish Gray	7×
Technic Gear Differential, 24 -16 Tooth with Clutch on Both Sides	6573	Red	1×
Technic Axle 3 with Stud	6587	Dark Tan	3×
Technic Gear 12 Tooth Bevel	6589	Tan	13×
Technic Beam 1 x 9 Bent (6 - 4) Thick	6629	Black	4×
Technic Beam 1 x 3 Thin	6632	Black	14×
Technic Beam 1 x 3 Thin	6632	Dark Bluish Gray	10×
Tile 1 x 6 with Groove	6636	Black	1×
Technic Pin with Friction Ridges Lengthwise and Towball - Round Pin Hole	66906	Red	9×
Technic Axle and Pin Connector Perpendicular Double Split [Reinforced]	69819	Dark Bluish Gray	2×
Tyre 81 x 35 Tractor	69912	Black	4×
Technic Beam 2 x 3 L-Shape with Quarter Ellipse Thick	71708	Dark Bluish Gray	11×
Technic Beam 2 x 3 L-Shape with Quarter Ellipse Thick	71708	Black	6×
Technic Panel 3 x 7 x 1	71709	Dark Bluish Gray	3×
Technic Panel 3 x 7 x 1	71709	Black	8×
Technic Beam 1 x 15 Thick with Alternating Holes	71710	Black	2×
Technic Beam 1 x 11 Thick with Alternating Holes	73507	Black	9×
Shield Round Bowed with Silver Mesh and Mercedes Logo print	75902pr0028	Black	1×
Technic Steering / CV Ball Joint, Cardan Ball with Cross Hole 3L	77590	Light Bluish Gray	3×
Sticker Sheet for Set 42129-1	77604	Unknown	1×
Hose, Ribbed 7mm D. 3L / 2.4cm	78c03	Flat Silver	1×
Hub, Powered Up 4-Port (Technic Control+) - Screw Opening	85824	Light Bluish Gray	1×
Plate Round 1 x 1 with Open Stud	85861	Black	4×
Tile 2 x 4 with Groove	87079	Light Bluish Gray	1×
Technic Axle 4 with Stop	87083	Dark Bluish Gray	26×
Technic Gear Rack 1 x 7 with Axle and Pin Holes	87761	Black	1×
Bar 3L	87994	Dark Bluish Gray	2×
Bar 3L	87994	Bright Green	1×
Plate Special 3 x 4 with 1 x 4 Center Studs [Plain]	88646	Black	2×
Technic Shock Absorber 6.5L with Hard Spring, Tight Coils at End, Black Rod [Complete Assembly]	89954c01	Red	4×
Technic Axle and Pin Connector Perpendicular Split	92907	Black	2×
Brick Round 2 x 2 [Grill]	92947	Light Bluish Gray	7×
Brick Round 2 x 2 [Grill]	92947	Dark Bluish Gray	1×
Slope Curved 4 x 1 Double with No Studs	93273	Black	1×
Technic Gear 16 Tooth Reinforced [New Style]	94925	Light Bluish Gray	12×
Tile Round 1 x 1	98138	Trans-Clear	4×
Tile Round 1 x 1	98138	Trans-Orange	10×
Tile Round 1 x 1	98138	Black	3×
Technic Axle 4 with Centre Stop	99008	Tan	2×
Technic Beam Triangle Thin [Type II]	99773	Light Bluish Gray	4×
Bracket 1 x 2 - 1 x 2 Inverted	99780	Black	2×

Build DNA

Parts inventory insights for 4x4 Mercedes-Benz Zetros Trial Truck

2,131 pieces puts this build +232% against the average Technic set and +298% against the average 2021 release.

LEGOTECHNIC

Vs average Technic set

+232%+1,490 parts

This set2,131

Average set641

Average Technic set: 641 pieces across 449 other sets.

Vs average 2021 set

+298%+1,595 parts

This set2,131

Average set536

Average 2021 set: 536 pieces across 471 other sets.

Color profile

19different colors

Dominant color

Black

Black1089x

51%

Dark Bluish Gray402x

19%

Light Bluish Gray316x

15%

Red135x

Unique parts

11.5 pieces per unique type

185

Repeat factor

Average pieces per unique type.

12x

Most used part

Technic Pin with Friction Ridges Lengthwise with No Center Slots

348x

Results are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.

This site is not affiliated with or endorsed by the LEGO Group.

Build Insights🧩185unique parts🎨19different colors📊112.2avg. parts per color🏆348×Technic Pin with Friction Ridges Lengthwise with No Center Slots

🎨 All Technic sets 📅 All sets from 2021

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