LEGO Technic 42009 Mobile Crane MK II

LEGO Technic set 42009, “Mobile Crane MK II”, depicts a mobile construction crane built around visible Technic mechanisms.

Set 42009 belongs to the Technic theme, where structural building, motion transfer and mechanical functions are central. The model represents a mobile construction crane, with a heavy vehicle chassis and a lifting superstructure, so its identity is based on engineering features rather than scene building.

The build uses Technic beams, axles, gears and body panels to create a functional vehicle model. Features associated with the subject include stabilizers, rotation of the crane superstructure, raising of the boom and operation of the winch.

It is suited to builders interested in construction vehicles, mechanical models and Technic sets that can be displayed as well as operated. Within a Technic collection, it sits among large functional machines, with the main interest placed on the crane’s movements rather than characters or decorative setting.

Inventory of set 42009

The inventory of set 42009 lists 2,607 pieces, spare parts excluded: 167 different lots (one shape in one color) for 138 part shapes. The box also contains 41 spare parts, for small elements that are easy to lose.

Colors of set 42009

Main color: black, making up 35% of the parts, followed by light bluish gray (24%) and blue (13%).

Part types

Most common parts in set 42009

132 of the 138 part shapes in this set have their own page on Setopedia, with their colors, element numbers and the other sets that use them. See all LEGO parts

Exclusive parts in set 42009

One part shape in set 42009 appears in no other set in the catalog, most often a printed element, a sticker or a mold specific to the model. If it gets lost, you will need to look for it individually, for example on BrickLink, rather than in another set.

Rebuilding set 42009 from another set

Share of the parts of set 42009 found in each of these similarly sized sets, counting shape, colour and quantity:

No similarly sized set goes above 57%: the model relies on a little-shared assortment, most of which has to be gathered piece by piece.

Size of set 42009 within its line

With 2,607 pieces, set 42009 ranks #14 out of 443 Technic sets in our database, which have an average of 658 parts. Among the 356 sets released in 2013, it ranks #3. That is 4 times the average Technic set size.