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Heavy-Duty Excavator 42121
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588
2021 Technic™
LEGO ID: 42121

Heavy-Duty Excavator 42121

The LEGO Heavy-Duty Excavator (42121) is a Technic™ set from 2021 with 588 parts. Compare prices across 111 regional LEGO stores and plan your build budget with BrickBudget.

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Selection
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Parts

588 parts • 0 unique
131 unique parts found
86x
CHAINS M PLATE M 5 Ø3, 2 HOLE

CHAINS M PLATE M 5 Ø3, 2 HOLE

ID: 6047885
N/A
Black
63x
CONNECTOR PEG W. FRICTION 3M

CONNECTOR PEG W. FRICTION 3M

ID: 6299413
N/A
Blue
38x
CONNECTOR PEG W. FRICTION

CONNECTOR PEG W. FRICTION

ID: 6279875
N/A
Black
20x
BEAM 1X2 W/CROSS AND HOLE

BEAM 1X2 W/CROSS AND HOLE

ID: 6265093
N/A
Dark Bluish Gray
15x
CONNECTOR PEG W. KNOB

CONNECTOR PEG W. KNOB

ID: 4211483
N/A
Light Bluish Gray
14x
CONN.BUSH W.FRIC./CROSSALE

CONN.BUSH W.FRIC./CROSSALE

ID: 4206482
N/A
Blue
13x
CROSS AXLE 3M

CROSS AXLE 3M

ID: 4211815
N/A
Light Bluish Gray
12x
Cross axle 2m w. snap w. fric.

Cross axle 2m w. snap w. fric.

ID: 6089119
N/A
Black
10x
CROSS AXLE, 3 MODULE, W/ END STOP

CROSS AXLE, 3 MODULE, W/ END STOP

ID: 6135494
N/A
Reddish Brown
10x
TECHNIC LEVER 2M

TECHNIC LEVER 2M

ID: 6338428
N/A
Black
8x
CROSS BLOCK 90°

CROSS BLOCK 90°

ID: 6261371
N/A
Black
7x
BEAM 1M W/CROSS AXLE

BEAM 1M W/CROSS AXLE

ID: 6135014
N/A
Dark Bluish Gray
7x
CON. BUSH 2M FR. + CROSS AXLE

CON. BUSH 2M FR. + CROSS AXLE

ID: 6209519
N/A
Red
6x
2M CROSS AXLE W. GROOVE

2M CROSS AXLE W. GROOVE

ID: 4142865
N/A
Red
6x
2M FRIC. SNAP W/CROSS HOLE

2M FRIC. SNAP W/CROSS HOLE

ID: 6321747
N/A
Light Bluish Gray
6x
CROSS AXLE 4M

CROSS AXLE 4M

ID: 370526
N/A
Black
6x
GEAR WHEEL T=8, M=1

GEAR WHEEL T=8, M=1

ID: 6012451
N/A
Dark Bluish Gray
6x
HALFBEAM CURVE 3X5

HALFBEAM CURVE 3X5

ID: 6327162
N/A
Black
6x
TECHNIC 15M BEAM

TECHNIC 15M BEAM

ID: 4542576
N/A
Dark Bluish Gray
6x
TECHNIC ANG. BEAM 4X2 90 DEG

TECHNIC ANG. BEAM 4X2 90 DEG

ID: 6271828
N/A
Yellow
5x
1/2 BUSH

1/2 BUSH

ID: 6271167
N/A
Yellow
5x
BEAM 1X1

BEAM 1X1

ID: 6121485
N/A
Black
5x
DOUBLE BUSH 3M Ø4.9

DOUBLE BUSH 3M Ø4.9

ID: 6321303
N/A
Light Bluish Gray
5x
DOUBLE CROSS BLOCK

DOUBLE CROSS BLOCK

ID: 6276969
N/A
Light Bluish Gray
5x
SINGLE BUSH 2 MODULE, DIA. 4,9

SINGLE BUSH 2 MODULE, DIA. 4,9

ID: 6282151
N/A
Yellow
5x
TECHNIC 11M BEAM

TECHNIC 11M BEAM

ID: 4603472
N/A
Dark Bluish Gray
5x
TECHNIC 3M BEAM

TECHNIC 3M BEAM

ID: 4153707
N/A
Yellow
5x
TECHNIC 5M BEAM

TECHNIC 5M BEAM

ID: 4142135
N/A
Black
5x
TECHNIC ANG. BEAM 3X5 90 DEG.

TECHNIC ANG. BEAM 3X5 90 DEG.

ID: 4142823
N/A
Black
4x
1 1/2 M CONNECTING BUSH

1 1/2 M CONNECTING BUSH

ID: 6013938
N/A
Tan
4x
2M FRIC. SNAP W/CROSS HOLE

2M FRIC. SNAP W/CROSS HOLE

ID: 6347789
N/A
Red
4x
3M CONNECTOR PEG

3M CONNECTOR PEG

ID: 6321305
N/A
Tan
4x
CHAINS M PLATE M 5 Ø3, 2 HOLE

CHAINS M PLATE M 5 Ø3, 2 HOLE

ID: 6047885
N/A
Black
4x
CROSS BLOCK 3X2

CROSS BLOCK 3X2

ID: 6331441
N/A
Light Bluish Gray
4x
GEAR WHEEL Z16

GEAR WHEEL Z16

ID: 4640536
N/A
Light Bluish Gray
4x
Light Bluish Gray Technic, Axle and Pin Connector Perpendicular Double Split

Light Bluish Gray Technic, Axle and Pin Connector Perpendicular Double Split

ID: 41678
N/A
Light Bluish Gray
4x
NOSE CONE SMALL 1X1

NOSE CONE SMALL 1X1

ID: 4529234
N/A
Red
4x
PLATE 2X2 W 1 KNOB

PLATE 2X2 W 1 KNOB

ID: 6126048
N/A
Red
4x
PLATE W. BOW 2X2X2/3

PLATE W. BOW 2X2X2/3

ID: 6079007
N/A
Yellow
4x
RADIATOR GRILLE 1X2

RADIATOR GRILLE 1X2

ID: 241226
N/A
Black
4x
ROOF TILE W. LATTICE 1x2x2/3

ROOF TILE W. LATTICE 1x2x2/3

ID: 4541191
N/A
Black
4x
ROUND PLATE 1X1

ROUND PLATE 1X1

ID: 614101
N/A
White
4x
SHELL 3X1X2, W/ CROSS HOLE, NO. 1

SHELL 3X1X2, W/ CROSS HOLE, NO. 1

ID: 6332412
N/A
Yellow
4x
TECHNIC 6M HALF BEAM

TECHNIC 6M HALF BEAM

ID: 6170294
N/A
Yellow
4x
TECHNIC 7M BEAM

TECHNIC 7M BEAM

ID: 4495934
N/A
Yellow
4x
TECHNIC 9M BEAM

TECHNIC 9M BEAM

ID: 4645732
N/A
Black
4x
TECHNIC ANGULAR BEAM 3X7

TECHNIC ANGULAR BEAM 3X7

ID: 6276835
N/A
Black
4x
TRIANGEL

TRIANGEL

ID: 6331437
N/A
Black
4x
TUBE, W/ DOUBLE 4.85 HOLE

TUBE, W/ DOUBLE 4.85 HOLE

ID: 6173119
N/A
Black
4x
UNIVERSAL JOINT

UNIVERSAL JOINT

ID: 6335279
N/A
Light Bluish Gray
3x
ANGLE ELEMENT, 180 DEGREES [2]

ANGLE ELEMENT, 180 DEGREES [2]

ID: 6271869
N/A
Black
3x
ANGLE ELEMENT, 90 DEGREES [6]

ANGLE ELEMENT, 90 DEGREES [6]

ID: 6268905
N/A
Black
3x
CROSS AXLE, EXTENSION, 3M

CROSS AXLE, EXTENSION, 3M

ID: 6273212
N/A
Light Bluish Gray
3x
DOUBLE CONICAL WHEEL Z12 1M

DOUBLE CONICAL WHEEL Z12 1M

ID: 4177431
N/A
Black
3x
FRAME 3X3

FRAME 3X3

ID: 6265644
N/A
Black
3x
TECHNIC ANG. BEAM 3X5 90 DEG.

TECHNIC ANG. BEAM 3X5 90 DEG.

ID: 4144022
N/A
Yellow
3x
Yellow Technic, Panel Curved 3 x 5 x 3

Yellow Technic, Panel Curved 3 x 5 x 3

ID: 24116
N/A
Yellow
2x
CONNECTOR PEG W. FRICTION

CONNECTOR PEG W. FRICTION

ID: 6279875
N/A
Black
2x
CONNECTOR PEG W. KNOB

CONNECTOR PEG W. KNOB

ID: 4211483
N/A
Light Bluish Gray
2x
CONNECTOR PEG/CROSS AXLE

CONNECTOR PEG/CROSS AXLE

ID: 4666579
N/A
Tan
2x
CROSS AXLE 4M WITH END STOP

CROSS AXLE 4M WITH END STOP

ID: 6083620
N/A
Dark Bluish Gray
2x
CROSS BLOCK 3X2

CROSS BLOCK 3X2

ID: 6362991
N/A
Black
2x
DOUBLE ANGULAR BEAM 3X7 45°

DOUBLE ANGULAR BEAM 3X7 45°

ID: 6271150
N/A
Yellow
2x
FLAT TILE 1X1

FLAT TILE 1X1

ID: 307021
N/A
Red
2x
FLAT TILE 1X1, ROUND

FLAT TILE 1X1, ROUND

ID: 6274738
N/A
Trans-Clear
2x
FLAT TILE 1X2

FLAT TILE 1X2

ID: 4211414
N/A
Light Bluish Gray
2x
LEVER 5M

LEVER 5M

ID: 6327028
N/A
Black
2x
LINEAR AKTUATOR 7-9 M

LINEAR AKTUATOR 7-9 M

ID: 6221464
N/A
Light Bluish Gray
2x
NOZZLE W/Ø3.18, SHAFT

NOZZLE W/Ø3.18, SHAFT

ID: 4514195
N/A
Light Bluish Gray
2x
PLATE 1x2 W. HORIZONTAL HOLE Ø4,85 REV.

PLATE 1x2 W. HORIZONTAL HOLE Ø4,85 REV.

ID: 6192309
N/A
Black
2x
SHELL 3X1X2, W/ CROSS HOLE, NO. 1

SHELL 3X1X2, W/ CROSS HOLE, NO. 1

ID: 6326047
N/A
Black
2x
TECHNIC 11M BEAM

TECHNIC 11M BEAM

ID: 6028107
N/A
Yellow
2x
TECHNIC 3M BEAM

TECHNIC 3M BEAM

ID: 4142822
N/A
Black
2x
TECHNIC ANG. BEAM 4X2 90 DEG

TECHNIC ANG. BEAM 4X2 90 DEG

ID: 6271825
N/A
Black
2x
TECHNIC LEVER 3M

TECHNIC LEVER 3M

ID: 6344174
N/A
Yellow
2x
TOGGEL JOINT

TOGGEL JOINT

ID: 6457112
N/A
Black
2x
Yellow Technic, Pin Connector Perpendicular 2 x 2 Bent

Yellow Technic, Pin Connector Perpendicular 2 x 2 Bent

ID: 44809
N/A
Yellow
1x
1 1/2 M CONNECTING BUSH

1 1/2 M CONNECTING BUSH

ID: 6013938
N/A
Tan
1x
1/2 BUSH

1/2 BUSH

ID: 6271167
N/A
Yellow
1x
ANGLE ELEMENT, 0 DEGREES [1]

ANGLE ELEMENT, 0 DEGREES [1]

ID: 6284699
N/A
Black
1x
ANGULAR PANEL 3X5X3 W/ 4.85 HOLE

ANGULAR PANEL 3X5X3 W/ 4.85 HOLE

ID: 6329052
N/A
Trans-Clear
1x
BEAM 1X1

BEAM 1X1

ID: 6121485
N/A
Black
1x
BEAM 1X1

BEAM 1X1

ID: 6183784
N/A
Light Bluish Gray
1x
BEAM 1X1

BEAM 1X1

ID: 6183784
N/A
Light Bluish Gray
1x
BEAM 3 MODULE W/ 4 SNAP

BEAM 3 MODULE W/ 4 SNAP

ID: 6282158
N/A
Light Bluish Gray
1x
BEAM, 1 MODULE W/ 2 CROSS AXLE, 180 DEG.

BEAM, 1 MODULE W/ 2 CROSS AXLE, 180 DEG.

ID: 6167281
N/A
Dark Bluish Gray
1x
BEVEL GEAR Z20

BEVEL GEAR Z20

ID: 6031962
N/A
Tan
1x
Black Technic Turntable 60 Tooth Bevel, Top

Black Technic Turntable 60 Tooth Bevel, Top

ID: 18938
N/A
Black
1x
BLOCK 3X4X2

BLOCK 3X4X2

ID: 6356106
N/A
Dark Bluish Gray
1x
BRICK 1X1 W. 2 KNOBS

BRICK 1X1 W. 2 KNOBS

ID: 6030266
N/A
Red
1x
BRICK 1X2 W. 2 HOLES Ø 4,87

BRICK 1X2 W. 2 HOLES Ø 4,87

ID: 3200026
N/A
Black
1x
BUSH FOR CROSS AXLE

BUSH FOR CROSS AXLE

ID: 6275844
N/A
Light Bluish Gray
1x
BUSH FOR CROSS AXLE

BUSH FOR CROSS AXLE

ID: 6275844
N/A
Light Bluish Gray
1x
CONICAL WHEEL Z12

CONICAL WHEEL Z12

ID: 4565452
N/A
Tan
1x
CROSS AXLE 5,5 WITH STOP 1M.

CROSS AXLE 5,5 WITH STOP 1M.

ID: 4508553
N/A
Dark Bluish Gray
1x
CROSS AXLE 5M

CROSS AXLE 5M

ID: 4211639
N/A
Light Bluish Gray
1x
CROSS AXLE 6M

CROSS AXLE 6M

ID: 6130002
N/A
Red
1x
CROSS AXLE 7M

CROSS AXLE 7M

ID: 6130009
N/A
Yellow
1x
CROSS AXLE 9M

CROSS AXLE 9M

ID: 4535768
N/A
Light Bluish Gray
1x
CROSS AXLE, EXTENSION, 2M

CROSS AXLE, EXTENSION, 2M

ID: 4519010
N/A
Yellow
1x
CROSS BLOCK/FORM 2X2X2

CROSS BLOCK/FORM 2X2X2

ID: 6279023
N/A
Light Bluish Gray
1x
DOUBLE CONICAL WHEEL Z20 1M

DOUBLE CONICAL WHEEL Z20 1M

ID: 6346517
N/A
Tan
1x
DOUBLE CROSS BLOCK

DOUBLE CROSS BLOCK

ID: 6276951
N/A
Black
1x
FLAT TILE 1X1

FLAT TILE 1X1

ID: 307021
N/A
Red
1x
FLAT TILE 1X1, ROUND

FLAT TILE 1X1, ROUND

ID: 6274738
N/A
Trans-Clear
1x
FLAT TILE 1X1, ROUND

FLAT TILE 1X1, ROUND

ID: 6284071
N/A
Light Bluish Gray
1x
FLAT TILE 1X1, ROUND

FLAT TILE 1X1, ROUND

ID: 6284071
N/A
Light Bluish Gray
1x
FLAT TILE 2X4

FLAT TILE 2X4

ID: 4560181
N/A
Yellow
1x
FRICTION FORK W/ CROSS HOLE

FRICTION FORK W/ CROSS HOLE

ID: 6271535
N/A
Black
1x
GLOBE W. 3.2 STICK

GLOBE W. 3.2 STICK

ID: 6507868
N/A
Trans-Orange
1x
GLOBE W. 3.2 STICK

GLOBE W. 3.2 STICK

ID: 6507868
N/A
Trans-Orange
1x
LEFT PANEL 2X5 (NR 22)

LEFT PANEL 2X5 (NR 22)

ID: 6352686
N/A
Yellow
1x
LEFT PANEL 3X7

LEFT PANEL 3X7

ID: 6533795
N/A
Yellow
1x
LOWER PART FOR TURNTABLE Z60

LOWER PART FOR TURNTABLE Z60

ID: 6109285
N/A
Light Bluish Gray
1x
NOZZLE W/Ø3.18, SHAFT

NOZZLE W/Ø3.18, SHAFT

ID: 4514195
N/A
Light Bluish Gray
1x
PLATE 1X2

PLATE 1X2

ID: 302324
N/A
Yellow
1x
PLATE 1X2 W. STUB/VERTICAL

PLATE 1X2 W. STUB/VERTICAL

ID: 6266244
N/A
Black
1x
PLATE 1X2, W/ 1 KNOB

PLATE 1X2, W/ 1 KNOB

ID: 6092585
N/A
Black
1x
PLATE 1X3

PLATE 1X3

ID: 362321
N/A
Red
1x
PLATE 1X4

PLATE 1X4

ID: 371024
N/A
Yellow