The LEGO Technic Mobile Crane MK II Set 42009 delivers a build where scale meets mechanical function, rewarding patience with a highly realistic mobile crane model.

Specs:

• Piece count: 2,606 pieces
• Model dimensions: over 16 inches (41 cm) long and 22 inches (56 cm) high with boom extended
• Features a 4-cylinder inline engine with moving pistons
• Includes a working turntable that rotates 360 degrees
• Boom extends and retracts using a gear-operated mechanism
• Outriggers deploy for stable display and operation
• Steering is controlled via a knob on the chassis, with functional rear-axle steering

This set, the LEGO Technic Mobile Crane MK II Set 42009, was released in 2013 and focuses on engineering accuracy through its moving pistons and extended boom design. The substantial piece count and functional outriggers make it suited for display on a shelf or as a technical centerpiece in a workbench setup.