Mobile Crane (8421-1) is a Technic LEGO set released in 2005 with 1,885 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. This set includes 201 unique part types.
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Building instructions
2 official booklets — read on BrickID
BYGGEVEJLEDNING, 8421/1 IN BYGGEVEJLEDNING, 8421/2
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Parts in this set
201 parts · page 1 of 5 · updating…
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![Battery Box, 9V 4 x 14 x 4 with Dark Bluish Gray Base [Complete Assembly]](https://cdn.rebrickable.com/media/parts/ldraw/14/74650c01.png)
Battery Box, 9V 4 x 14 x 4 with Dark Bluish Gray Base [Complete Assembly]2847c03 · ×1 · Yellow -
Brick 2 x 62456 · ×4 · Yellow -
Brick Round 2 x 2 with Axle Hole3941 · ×3 · Trans-Neon Orange -
![Grille 1 x 4 [Two Pins]](https://cdn.rebrickable.com/media/parts/elements/4153120.jpg)
Grille 1 x 4 [Two Pins]30622 · ×2 · Yellow -
Hook, Technic - Large70496 · ×1 · Black -
Hose, Pneumatic 4mm D. 16L5102c16 · ×1 · Blue -
Hose, Pneumatic 4mm D. 16L5102c16 · ×1 · Black -
Large Figure Skeletal, Limb 1 x 3 x 7 Beam with Axle Holes (Bohrok)41672 · ×2 · Black -
Motor, RC Race Buggy42908 · ×1 · Black -
Plate 1 x 104477 · ×2 · Black -
Plate 1 x 23023 · ×13 · Yellow -
Plate 1 x 23023 · ×2 · Dark Bluish Gray -
Plate 1 x 33623 · ×2 · Dark Bluish Gray -
Plate 1 x 33623 · ×6 · Yellow -
Plate 1 x 43710 · ×16 · Yellow -
Plate 1 x 63666 · ×10 · Yellow -
Plate 1 x 63666 · ×1 · Light Bluish Gray -
Plate 1 x 63666 · ×1 · Black -
Plate 1 x 83460 · ×8 · Dark Bluish Gray -
Plate 1 x 83460 · ×6 · Yellow -
Plate 2 x 23022 · ×3 · Yellow -
Plate 2 x 2 Corner2420 · ×2 · Yellow -
Plate 2 x 33021 · ×1 · Yellow -
Plate 2 x 83034 · ×1 · Yellow -
Plate 4 x 63032 · ×1 · Dark Bluish Gray -
Plate 4 x 83035 · ×1 · Dark Bluish Gray -
Plate Round 1 x 1 with Solid Stud6141 · ×6 · Trans-Clear -
Plate Round 1 x 1 with Solid Stud6141 · ×4 · Trans-Neon Orange -
Plate Round 1 x 1 with Solid Stud6141 · ×2 · Trans-Red -
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)4032a · ×3 · Black -
![Plate Round 2 x 2 with Rounded Bottom [Boat Stud]](https://cdn.rebrickable.com/media/parts/elements/265426.jpg)
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]2654 · ×3 · Black -
Plate Special 1 x 2 with 1 Stud without Groove (Jumper)3794a · ×2 · Yellow -
Plate Special 1 x 2 with 1 Stud without Groove (Jumper)3794a · ×6 · Light Bluish Gray -
![Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs]](https://cdn.rebrickable.com/media/parts/elements/244426.jpg)
Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs]2444 · ×2 · Black -
Plate Special 2 x 2 with 2 Pin Holes2817 · ×1 · Yellow -
Pneumatic Cylinder Bracket53178 · ×2 · Yellow -
Pneumatic Cylinder with 2 Inlets and Rounded End Medium (48mm)47225 · ×2 · Yellow -
Pneumatic Pump New Style with Black Top2797c02 · ×1 · Yellow -
Pneumatic Switch with Pin Holes47223a · ×1 · Dark Bluish Gray -
![Pneumatic T-Piece (T Bar) [New Style]](https://cdn.rebrickable.com/media/parts/elements/4211508.jpg)
Pneumatic T-Piece (T Bar) [New Style]4697b · ×1 · Light Bluish Gray -
Slope Inverted 45° 2 x 13665 · ×4 · Dark Bluish Gray -
Sticker Sheet for Set 8421-153535 · ×1 · [No Color/Any Color] -
String Cord Medium Thickness 250cm14728c250 · ×1 · Black -
String with End Studs 31L Overall14226c31 · ×2 · Black -
Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle)6553 · ×2 · Black -
Technic Axle 103737 · ×5 · Black -
Technic Axle 123708 · ×2 · Black -
Technic Axle 2 Notched32062 · ×24 · Red