Parts inventory for 8421-1: Mobile Crane

This set inventory has been obtained from LEGO Customer Services replacement parts page. It may not be complete. The right-hand column indficates whether the piece is currently available from LEGO CS.

Important note: We do not control this inventory and cannot currently make changes to it. Use it as a guide to the contents of the set, or to find out part numbers when requesting replacements.

Part    Image Qty    Colour Category Design    Part name Set count   
4111998
2 Black Beams 32009 Double Angular Beam 3X7 45° 93
4112282
3 Black Beams 6629 Technic Angular Beam 4X6 83
4120017
2 Black Beams 32140 Technic Ang. Beam 4X2 90 Deg 175
4128603
6 Black Beams 32278 Technic 15M Beam 47
4142135
1 Black Beams 32316 Technic 5M Beam 156
4142823
8 Black Beams 32526 Technic Ang. Beam 3X5 90 Deg. 88
4154767
2 Black Beams 40490 Technic 9M Beam 69
4177444
2 Black Beams 43857 Technic 2M Beam 53
4522933
14 Black Beams 41239 Technic 13M Beam 47
4121667
28 Black Beams, Special 32184 Double Cross Block 150
4140430
2 Black Beams, Special 32291 Technic Cross Block 2X1 111
4163139
2 Black Beams, Special 41672 Bion. Head, Bottom 20
4173668
17 Black Beams, Special 6536 Cross Block 90° 218
4107558
2 Black Bricks And Beams, Special Ø 4,85 32018 Technic Brick 1X14, Ø4,9 81
370526
34 Black Connectors 3705 Cross Axle 4M 742
370626
5 Black Connectors 3706 Cross Axle 6M 618
370726
7 Black Connectors 3707 Cross Axle 8M 416
370826
2 Black Connectors 3708 Cross Axle 12M 279
373726
5 Black Connectors 3737 Cross Axle 10M 361
655826
158 Black Connectors 6558 Connector Peg W. Friction 3M 386
4107081
2 Black Connectors 32039 Catch W. Cross Hole 267
4107082
2 Black Connectors 32016 Angle Element, 157,5 Degr. [3] 107
4107084
2 Black Connectors 32015 Angle Element, 112,5 Degr. [5] 100
4107085
1 Black Connectors 32013 Angle Element, 0 Degrees [1] 276
4107765
2 Black Connectors 6553 Catch 161
4107783
5 Black Connectors 32034 Angle Element, 180 Degrees [2] 174
4119589
1 Black Connectors 32138 Module Bush 169
4121715
200 Black Connectors 2780 Connector Peg W. Friction 1207
4140801
4 Black Connectors 32054 2M Fric. Snap W/Cross Hole 248
4177421
17 Black Connectors 6590 Bush For Cross Axle 16
4233937
1 Black Connectors 50450 Cross Axle 32M 15
4526982
2 Black Connectors 62462 Tube W/Double Ø4.85 117
4177239
1 Black Electric Parts 42908 Gm: Assembly 5
4113805
15 Black Functional Elements 6538 Cross Axle, Extension M/3 Ribs 100
4520872
1 Black Functional Elements 50163 Turntable Ø4.85 12
471626
1 Black Functional Elements, Gear Wheels And Racks 4716 Worm 67
4255563
1 Black Functional Elements, Gear Wheels And Racks 32498 Double Conical Wheel Z36 21
4114295
1 Black Half Beams 32065 Technic 7M Half Beam 40
4128557
6 Black Half Beams 32250 Halfbeam Curve 3X5 61
4142543
14 Black Half Beams 2905 Triangle 65
4164133
2 Black Half Beams 41677 Technic Lever 2M 121
4240081
4 Black Half Beams 32251 Halfbeam Curve 5X7 5
4156980
4 Black Half Beams, Special 33299 2X1X3 Steering Knuckle Arm 16
243126
1 Black Plates 2431 Flat Tile 1X4 326
366626
1 Black Plates 3666 Plate 1X6 421
447726
2 Black Plates 4477 Plate 1X10 172
244426
2 Black Plates, Special 2444 Technic Bearing Plate 2X2 141
4114689
4 Black Plates, Special 32124 Technic Rotor, 2 Blades 33
4144023
2 Black Plates, Special 32529 T-Beam W. Plate 1X2 W. Knob 37
403226
3 Black Plates, Special Circles And Angles 4032 Plate 2X2 Round 294
4278359
3 Black Plates, Special Circles And Angles 2654 Slide Shoe Round 2X2 142
4528332
2 Black Rubbers And Strings 63142 String W. Knobs 30 M 9
70644
1 Black Transportation Means, Accessories 70644 Technic Crane Hook 10
4156948
2 Black Tyres And Rims For/To Snap Ø4,85 W. Cross 30155 Wheel Hub W. Spokes Ø17 3
4235705
8 Black Tyres And Rims For/To Snap Ø4,85 W. Cross 75999 Tyre Ø 62,4X20 2
4494225
2 Black Tyres And Rims, Special 4185 Wedge-Belt Wheel Ø24 3
4186017
2 Brick Yellow Connectors 6562 Connector Peg/Cross Axle 300
4158923
6 Bright Blue Beams 32526 Technic Ang. Beam 3X5 90 Deg. 33
4168114
3 Bright Blue Beams 32140 Technic Ang. Beam 4X2 90 Deg 27
4185665
2 Bright Blue Beams 43857 Technic 2M Beam 2
4206482
106 Bright Blue Connectors 43093 Conn.Bush W.Fric./Crossale 806
4240084
14 Bright Blue Half Beams 32056 Technic Lever 3X3M, 90° 4
4142865
24 Bright Red Connectors 32062 2M Cross Axle W. Groove 597
4270473
1 Bright Red Connectors 6641 Technic Change-Over Catch 24
4278957
1 Bright Red Connectors 6539 Driving Ring 24
4186678
12 Bright Red Half Beams 41677 Technic Lever 2M 63
4111996
1 Bright Yellow Beams 32009 Double Angular Beam 3X7 45° 35
4141628
6 Bright Yellow Beams 32140 Technic Ang. Beam 4X2 90 Deg 30
4142133
18 Bright Yellow Beams 32316 Technic 5M Beam 41
4144022
4 Bright Yellow Beams 32526 Technic Ang. Beam 3X5 90 Deg. 31
4153707
7 Bright Yellow Beams 32523 Technic 3M Beam 45
4187122
2 Bright Yellow Beams 43857 Technic 2M Beam 19
4187136
4 Bright Yellow Beams 40490 Technic 9M Beam 30
4188311
3 Bright Yellow Beams 6629 Technic Angular Beam 4X6 14
4194915
3 Bright Yellow Beams 32271 Technic Angular Beam 3X7 5
4237445
8 Bright Yellow Beams 32278 Technic 15M Beam 2
4495934
10 Bright Yellow Beams 32524 Technic 7M Beam 35
4522935
7 Bright Yellow Beams 41239 Technic 13M Beam 17
4534912
3 Bright Yellow Beams 64290 Misentry 2
4173666
34 Bright Yellow Beams, Special 6536 Cross Block 90° 36
4175441
3 Bright Yellow Beams, Special 42003 Cross Blok 3M 26
4181143
4 Bright Yellow Bricks 44237 Brick 2X6 129
370124
4 Bright Yellow Bricks And Beams, Special Ø 4,85 3701 Technic Brick 1X4, Ø4,9 44
370224
4 Bright Yellow Bricks And Beams, Special Ø 4,85 3702 Technic Brick 1X8 25
370324
16 Bright Yellow Bricks And Beams, Special Ø 4,85 3703 Brick 1X16, Ø4,9 20
389424
4 Bright Yellow Bricks And Beams, Special Ø 4,85 3894 Brick 1X6, Ø4,9 43
654124
2 Bright Yellow Bricks And Beams, Special Ø 4,85 6541 Technic Brick 1X1 49
4190417
6 Bright Yellow Bricks And Beams, Special Ø 4,85 2744 Wing Section, Rear 5
4195727
5 Bright Yellow Bricks And Beams, Special Ø 4,85 32018 Technic Brick 1X14, Ø4,9 6
4233484
2 Bright Yellow Bricks, Special 32064 Brick 1X2 With Cross Hole 38
4160333
4 Bright Yellow Bricks, Special Circles And Angles 41767 Right Brick 2X4 W/Angle 16
4160348
4 Bright Yellow Bricks, Special Circles And Angles 41768 Left Brick 2X4 W/Angle 16
4107066
12 Bright Yellow Connectors 32013 Angle Element, 0 Degrees [1] 40
4107800
6 Bright Yellow Connectors 32039 Catch W. Cross Hole 40
4140805
29 Bright Yellow Connectors 32054 2M Fric. Snap W/Cross Hole 9
4239601
4 Bright Yellow Connectors 32123 1/2 Bush 186
4203493
4 Bright Yellow Functional Elements, Gear Wheels And Racks 32072 Technic Angular Wheel 35
74720
1 Bright Yellow Functional Elements, Others 74720 Pumpcylinder 14
4205293
2 Bright Yellow Functional Elements, Others 47225 Doubleacting Cylinder 6 M 5
4267463
2 Bright Yellow Functional Elements, Others 53178 Cylinder Connector 2
4107823
2 Bright Yellow Half Beams 6632 Technic Lever 3M 54
4114672
1 Bright Yellow Half Beams 32065 Technic 7M Half Beam 19
4199345
4 Bright Yellow Half Beams 32449 Lever 1X4, Without Notch 21
4187125
2 Bright Yellow Half Beams, Special 41678 Technic Cross Block/Fork 2X2 9
4153120
2 Bright Yellow Modelling Elements 30622 Bumper 1X4X7,6 W/Doub/Snap 7
242024
2 Bright Yellow Plates 2420 Corner Plate 1X2X2 81
243124
2 Bright Yellow Plates 2431 Flat Tile 1X4 145
302124
1 Bright Yellow Plates 3021 Plate 2X3 206
302224
3 Bright Yellow Plates 3022 Plate 2X2 293
302324
13 Bright Yellow Plates 3023 Plate 1X2 341
303424
1 Bright Yellow Plates 3034 Plate 2X8 80
306924
4 Bright Yellow Plates 3069 Flat Tile 1X2 183
346024
6 Bright Yellow Plates 3460 Plate 1X8 87
362324
6 Bright Yellow Plates 3623 Plate 1X3 117
366624
10 Bright Yellow Plates 3666 Plate 1X6 160
371024
16 Bright Yellow Plates 3710 Plate 1X4 277
379424
2 Bright Yellow Plates 3794 Plate 1X2 W. 1 Knob 139
4189400
14 Bright Yellow Plates 4162 Flat Tile 1X8 50
4219766
1 Bright Yellow Plates, Special 2817 Technic Doub. Bearing Pl. 2X2 2
4112203
6 Bright Yellow Transportation Means, Vehicles 2851 Plastic Motor, Piston 49
4210667
32 Dark Stone Grey Beams 32140 Technic Ang. Beam 4X2 90 Deg 45
4210668
8 Dark Stone Grey Beams 32009 Double Angular Beam 3X7 45° 32
4210751
12 Dark Stone Grey Beams 32523 Technic 3M Beam 67
4210757
11 Dark Stone Grey Beams 40490 Technic 9M Beam 16
4210851
8 Dark Stone Grey Beams, Special 6536 Cross Block 90° 55
4256828
2 Dark Stone Grey Bricks And Beams, Special Ø 4,85 3703 Technic Brick 1X16, Ø4,9 20
4211096
4 Dark Stone Grey Bricks With Slope 3665 Roof Tile 1X2 Inv. 132
4211050
12 Dark Stone Grey Connectors 32002 1 1/2 M Connecting Bush 232
4211086
1 Dark Stone Grey Connectors 6587 Crossaxle 3M With Knob 284
4508553
15 Dark Stone Grey Connectors 59426 Cross Axle 5,5 With Stop 1M. 226
4211023
1 Dark Stone Grey Functional Elements, Gear Wheels And Racks 6573 Differentiale Gear Casing 21
4237267
5 Dark Stone Grey Functional Elements, Gear Wheels And Racks 6542 Gear Wheel Z16-Ø4.9 29
4535052
2 Dark Stone Grey Functional Elements, Gear Wheels And Racks 76244 Technic Coupling, Tight 2
4237158
1 Dark Stone Grey Functional Elements, Others 47223 Welded Two-Way Valve 7
4210980
6 Dark Stone Grey Half Beams 41677 Technic Lever 2M 51
4210998
8 Dark Stone Grey Plates 3460 Plate 1X8 178
4211061
1 Dark Stone Grey Plates 3035 Plate 4X8 119
4211063
2 Dark Stone Grey Plates 3023 Plate 1X2 365
4211115
1 Dark Stone Grey Plates 3032 Plate 4X6 189
4211133
2 Dark Stone Grey Plates 3623 Plate 1X3 165
4210987
2 Dark Stone Grey Transportation Means, Vehicles 2854 Plastic Motor, Crank 31
4211651
24 Medium Stone Grey Beams 32316 Technic 5M Beam 59
4211655
2 Medium Stone Grey Beams 32523 Technic 3M Beam 56
4211668
2 Medium Stone Grey Beams 32348 Technic Angular Beam 4X4 17
4211713
11 Medium Stone Grey Beams 32526 Technic Ang. Beam 3X5 90 Deg. 39
4211770
19 Medium Stone Grey Beams 32278 Technic 15M Beam 8
4211862
1 Medium Stone Grey Beams 43857 Technic 2M Beam 33
4211866
1 Medium Stone Grey Beams 40490 Technic 9M Beam 35
4495930
29 Medium Stone Grey Beams 32524 Technic 7M Beam 58
4522934
2 Medium Stone Grey Beams 41239 Technic 13M Beam 19
4534910
6 Medium Stone Grey Beams 64290 Misentry 3
4211621
7 Medium Stone Grey Beams, Special 32184 Double Cross Block 74
4211775
18 Medium Stone Grey Beams, Special 6536 Cross Block 90° 96
4211779
19 Medium Stone Grey Beams, Special 42003 Cross Blok 3M 63
4225033
14 Medium Stone Grey Beams, Special 48989 Beam 3 M. W/4 Snaps 113
4205761
2 Medium Stone Grey Bricks And Beams, Special Ø 4,85 32333 V-Engine Holder 17
4211483
20 Medium Stone Grey Connectors 4274 Connector Peg W. Knob 351
4211550
8 Medium Stone Grey Connectors 32013 Angle Element, 0 Degrees [1] 77
4211567
2 Medium Stone Grey Connectors 32034 Angle Element, 180 Degrees [2] 78
4211573
30 Medium Stone Grey Connectors 32123 1/2 Bush 359
4211622
52 Medium Stone Grey Connectors 6590 Bush For Cross Axle 384
4211639
40 Medium Stone Grey Connectors 32073 Cross Axle 5M 341
4211709
13 Medium Stone Grey Connectors 32556 3M Connector Peg 72
4211805
30 Medium Stone Grey Connectors 44294 Cross Axle 7M 235
4211815
55 Medium Stone Grey Connectors 4519 Cross Axle 3M 577
4211865
17 Medium Stone Grey Connectors 32054 2M Fric. Snap W/Cross Hole 98
4211888
3 Medium Stone Grey Connectors 32138 Module Bush 19
4211543
27 Medium Stone Grey Functional Elements 6538 Cross Axle, Extension M/3 Ribs 50
4211432
11 Medium Stone Grey Functional Elements, Gear Wheels And Racks 3647 Gear Wheel T=8, M=1 74
4211434
1 Medium Stone Grey Functional Elements, Gear Wheels And Racks 3650 Crown- And Gear Wheel Z24 44
4211450
9 Medium Stone Grey Functional Elements, Gear Wheels And Racks 3743 Toothed Bar M=1, Z=10 56
4211510
1 Medium Stone Grey Functional Elements, Gear Wheels And Racks 4716 Worm 69
4211539
5 Medium Stone Grey Functional Elements, Gear Wheels And Racks 6589 Conical Wheel Z12 50
4211565
1 Medium Stone Grey Functional Elements, Gear Wheels And Racks 3648 Gear Wheel T=24 46
4211634
5 Medium Stone Grey Functional Elements, Gear Wheels And Racks 32270 Double Conical Wheel Z12 1M 54
4211635
5 Medium Stone Grey Functional Elements, Gear Wheels And Racks 32269 Double Conical Wheel Z20 1M 34
4211885
1 Medium Stone Grey Functional Elements, Gear Wheels And Racks 32198 Bevel Gear Z20 15
4211508
1 Medium Stone Grey Functional Elements, Others 4697 T-Piece 122
4211563
8 Medium Stone Grey Functional Elements, Others 4019 Gear Wheel Z=16, M=1 27
4211566
15 Medium Stone Grey Half Beams 6632 Technic Lever 3M 68
4211645
17 Medium Stone Grey Half Beams 32449 Lever 1X4, Without Notch 20
4211741
4 Medium Stone Grey Half Beams 41677 Technic Lever 2M 62
4503416
2 Medium Stone Grey Half Beams 32017 Technic 5M Half Beam 26
4211438
1 Medium Stone Grey Plates 3666 Plate 1X6 210
4211451
6 Medium Stone Grey Plates 3794 Plate 1X2 W. 1 Knob 236
4211379
6 Medium Stone Grey Transportation Means, Vehicles 2852 Plastic Motor, Main Rod 20
4211578
1 Medium Stone Grey Transportation Means, Vehicles 2819 Steering Wheel Ø24 17
4211609
2 Medium Stone Grey Transportation Means, Vehicles 2853 Plastic Motor, Crank/Cross 35
4234251
6 Medium Stone Grey Transportation Means, Vehicles 2850 Plastic Motor, Cylinder 31
4496707
8 Medium Stone Grey Tyres And Rims For/To Snap Ø4,85 W. Cross 32020 Rim Ø 43,2 X 18 5
4494222
3 Medium Stone Grey Tyres And Rims, Special 4185 Wedge-Belt Wheel Ø24 56
611647
3 Tr. Fluore.Redd. Orange Bricks, Special Circles And Angles 6116 Brick 2X2 Round Ii 25
3005747
4 Tr. Fluore.Redd. Orange Plates, Special Circles And Angles 30057 Round Plate 1X1 - Tr. 194
3005741
2 Tr. Red Plates, Special Circles And Angles 30057 Round Plate 1X1 - Tr. 731
3005740
6 Transparent Plates, Special Circles And Angles 30057 Round Plate 1X1 - Tr. 372

Colour summary

Colour Unique Total
Black 56 624
Brick Yellow 1 2
Bright Blue 5 131
Bright Red 4 38
Bright Yellow 54 326
Dark Stone Grey 21 136
Medium Stone Grey 50 573
Tr. Fluore.Redd. Orange 2 7
Tr. Red 1 2
Transparent 1 6
Total 195 1845

Category summary

Category Unique Total
Beams 39 287
Beams, Special 11 152
Bricks 1 4
Bricks And Beams, Special Ø 4,85 10 47
Bricks With Slope 1 4
Bricks, Special 1 2
Bricks, Special Circles And Angles 3 11
Connectors 41 933
Electric Parts 1 1
Functional Elements 3 43
Functional Elements, Gear Wheels And Racks 15 53
Functional Elements, Others 6 15
Half Beams 15 104
Half Beams, Special 2 6
Modelling Elements 1 2
Plates 23 105
Plates, Special 4 9
Plates, Special Circles And Angles 5 18
Rubbers And Strings 1 2
Transportation Means, Accessories 1 1
Transportation Means, Vehicles 6 23
Tyres And Rims For/To Snap Ø4,85 W. Cross 3 18
Tyres And Rims, Special 2 5
Total 195 1845