How many pieces are in the Crawler Crane?

Crawler Crane contains 1,401 pieces.

When was the Crawler Crane released?

Crawler Crane was released in 2015.

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🏛 Technic

Set #42042

Crawler Crane

The Crawler Crane is a Technic powerhouse.

Before you buy

Who it's for: Intermediate build Ideal for teens and adults interested in mechanical engineering and functional LEGO models.
Build: 1,401 pieces · about 4.5 hours Build time is an estimate.
Price: $149.99 list price · 10.7¢ per piece
Availability: Retired at LEGO

★★★★☆ 4.3 community rating from 310 ratings

The Crawler Crane is praised for its impressive size, realistic functionality, and engaging building experience. Some users note the complexity of the build can be challenging, but ultimately rewarding, while others appreciate the set's display value and play features.

$149.99

Best Price

$134.99

You Save

10% OFF

📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

The Crawler Crane is a Technic powerhouse. This set delivers a complex and rewarding building experience, showcasing the intricate mechanisms that make Technic sets so captivating. The functional crane arm and realistic crawler tracks provide hours of engaging play.

This set is perfect for Technic enthusiasts and intermediate builders. The detailed construction and impressive size make it a great display piece, while the working functions offer interactive play. It's a satisfying project that bridges the gap between complexity and accessibility.

Skip this if you prefer minifigure-scale builds or simpler models. If you're looking for a faster build with more immediate gratification, consider a smaller Technic set or a Creator Expert vehicle.

✨ New

Ask BlockTalk about this set

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BlockTalk

Hi! I'm BlockTalk, your LEGO expert. Ask me anything about the Crawler Crane - building tips, investment potential, comparisons, or anything else!

Try asking:

How does the Crawler Crane compare to other Technic construction vehicles in terms of functionality? What are some advanced building techniques used in this set that I can apply to my own MOCs? Is the increased price of the retired set justified by its rarity and features? What is the best way to display the Crawler Crane to showcase its mechanical functions?

🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI

🧩

1,401

Pieces

⏱

4.5h

Estimated Build Time

📊

Intermediate

Difficulty

Build Highlights:

Complex gear system for crane operation
Realistic crawler track assembly
Extending and retracting crane arm
Detailed cabin and structural design

📈 Investment Analysis

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI

↑ Trending up since release

B+

Investment Grade

⏳ Retired

The Crawler Crane presents a solid investment opportunity due to its retired status and the enduring popularity of the Technic theme. Its substantial piece count and functional features contribute to its desirability among collectors. While the price has already seen significant appreciation, the demand for well-maintained, complete sets is likely to continue, making it a worthwhile addition to a LEGO investment portfolio. However, potential investors should be mindful of storage conditions and the completeness of the set, as these factors significantly impact resale value.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

📖 About This Set

Make way for the powerful LEGO® Technic Crawler Crane! This huge, robust 2-in-1 model comes with an array of realistic details and exciting features. Activate the included Power Functions motor and use the joysticks to operate the boom, raise and lower the claw, rotate the superstructure and drive the huge caterpillar tracks that maneuver this mighty machine! Includes an authentic double winch and pulley system with extensive cabling, working claw, detailed cab with tilt function, exhaust pipe and a ventilation grill. You can also extend the boom for even greater height! A cool blue and white color scheme adds the finishing touch to this awesome model. Rebuilds into a huge Mobile Tower Crane!

Features Power Functions motorized boom, winch, superstructure and caterpillar tracks
Also features an opening claw, tilting cab, extendable boom, extensive cabling and a realistic exhaust pipe and ventilation grid
Check out the cool blue and white color scheme
Activate the huge crawler tracks!
Rotate the massive superstructure!
Lift the boom!
Lower the claw!
2-in-1 model: rebuilds into a Mobile Tower Crane
Crawler Crane measures over 24” (61cm) high, 13” (33cm) long and 7” (20cm) wide
Mobile Tow er Crane measures over 25” (64cm) high, 22” (56cm) long and 8” (22cm) wide

⚖ Compare Similar Sets

Mobile Crane MK II

Technic • 2,606 pcs

$219.99

Liebherr R 9800 Excavator

Technic • 4,108 pcs

$449.99

Liebherr Crawler Crane LR 13000

Technic • 2,883 pcs

$699.99

The Crawler Crane offers a more intricate and realistic crane experience compared to smaller Technic vehicle sets. While sets like the Mobile Crane MK II (42009-1) offer similar functionality, the Crawler Crane's unique track system and overall design set it apart. Collectors looking for a challenging and rewarding Technic build will find the Crawler Crane a compelling choice.

📦 Parts Inventory

Official piece count: 1,401
Parts cataloged in this inventory: 120 unique parts, 1,400 pieces

LEGO counts 1,401 pieces. This inventory comes from a separate parts catalog and lists 1,400; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Technic Gear 8 To...

Part #: 10928 6× Dark Bluish Gray

Technic Axle Pin ...

Part #: 11214 18× Dark Bluish Gray

Technic Beam 1 x ...

Part #: 11478 6× Black

Technic Panel Cur...

Part #: 11954 4× Blue

Wheel 18 x 8 with...

Part #: 13971 1× Light Bluish Gray

Technic Beam 3 x ...

Part #: 14720 1× Light Bluish Gray

Technic Pin Conne...

Part #: 15100 2× Black

Technic Panel 3 x...

Part #: 15458 2× White

Technic Axle 5 wi...

Part #: 15462 11× Dark Tan

Battery Box, Powe...

Part #: 16511 1× Light Bluish Gray

Technic Gear 20 T...

Part #: 18575 6× Tan

Technic Pin Conne...

Part #: 18654 12× Dark Bluish Gray

Technic Turntable...

Part #: 18938 1× Black

Technic Turntable...

Part #: 18939 1× Light Bluish Gray

Technic Gear 16 T...

Part #: 18946 11× Red

Technic Driving R...

Part #: 18947 4× Dark Bluish Gray

Technic Driving R...

Part #: 18948 6× White

Technic Pin Doubl...

Part #: 19159 1× Black

Technic Grabber A...

Part #: 19540 4× Black

Sticker Sheet for...

Part #: 20874 1× [No Color/Any Color]

String Cord Poly,...

Part #: 21474 1× Black

String Cord Poly,...

Part #: 21478 1× Black

Tile 1 x 4 with G...

Part #: 2431 2× Blue

Technic Link 1 x 16

Part #: 2637 4× Light Bluish Gray

Technic Pin with ...

Part #: 2780 185× Black

Plate 2 x 4

Part #: 3020 4× Dark Bluish Gray

Plate 2 x 3

Part #: 3021 6× Blue

Flag 7 x 3 with Rod

Part #: 30292 1× Dark Blue

Bar 4L (Lightsabe...

Part #: 30374 2× Black

Technic Brick 1 x...

Part #: 32000 4× Black

Technic Pin 3/4

Part #: 32002 4× Tan

Technic Beam 1 x ...

Part #: 32009 2× Blue

Technic Beam 1 x ...

Part #: 32009 2× White

Technic Axle and ...

Part #: 32013 2× White

Technic Axle and ...

Part #: 32015 2× Light Bluish Gray

Technic Axle and ...

Part #: 32015 2× White

Technic Axle and ...

Part #: 32034 3× Black

Technic Axle Conn...

Part #: 32039 9× Black

Technic Pin Long ...

Part #: 32054 36× Black

Technic Pin Long ...

Part #: 32054 50× Light Bluish Gray

Technic Axle 2 No...

Part #: 32062 15× Red

Technic Beam 1 x ...

Part #: 32063 16× Black

Technic Axle 5

Part #: 32073 14× Light Bluish Gray

Technic Bush 1/2 ...

Part #: 32123b 2× Yellow

Technic Bush 1/2 ...

Part #: 32123b 26× Light Bluish Gray

Technic Axle and ...

Part #: 32126 2× Blue

Technic Pin Doubl...

Part #: 32138 2× Black

Technic Beam 2 x ...

Part #: 32140 6× Blue

Technic Beam 2 x ...

Part #: 32140 16× Light Bluish Gray

Technic Axle and ...

Part #: 32184 3× Light Bluish Gray

Technic Gear 20 T...

Part #: 32198 4× Tan

Technic Gear 12 T...

Part #: 32270 5× Black

Technic Beam 1 x ...

Part #: 32271 2× White

Technic Beam 1 x ...

Part #: 32278 40× Blue

Technic Beam 1 x ...

Part #: 32278 5× Dark Bluish Gray

Technic Beam 1 x ...

Part #: 32316 8× Black

Technic Beam 1 x ...

Part #: 32449 8× White

Technic Beam 1 x ...

Part #: 32523 1× Black

Technic Beam 1 x ...

Part #: 32523 5× White

Technic Beam 1 x ...

Part #: 32523 17× Blue

Technic Beam 1 x ...

Part #: 32524 27× Blue

Technic Beam 1 x ...

Part #: 32524 1× White

Technic Beam 1 x ...

Part #: 32524 4× Dark Bluish Gray

Technic Beam 1 x ...

Part #: 32525 5× Blue

Technic Beam 1 x ...

Part #: 32525 3× Black

Technic Beam 1 x ...

Part #: 32525 8× Dark Bluish Gray

Technic Beam 3 x ...

Part #: 32526 5× White

Technic Beam 3 x ...

Part #: 32526 18× Dark Bluish Gray

Technic Beam 3 x ...

Part #: 32526 7× Blue

Technic Pin Long ...

Part #: 32556 15× Tan

Technic Pin Conne...

Part #: 32557 4× Black

Technic Beam 3 x ...

Part #: 33299a 4× Light Bluish Gray

Plate 1 x 3

Part #: 3623 2× White

Technic Gear 24 T...

Part #: 3648b 4× Dark Bluish Gray

Technic Pin witho...

Part #: 3673 16× Light Bluish Gray

Technic Axle 4

Part #: 3705 10× Black

Technic Axle 6

Part #: 3706 11× Black

Technic Axle 8

Part #: 3707 3× Black

Technic Bush

Part #: 3713 20× Light Bluish Gray

Technic Axle 10

Part #: 3737 2× Black

Technic Beam 1 x ...

Part #: 40490 7× Light Bluish Gray

Technic Beam 1 x ...

Part #: 41239 3× White

Technic Beam 1 x ...

Part #: 41239 20× Dark Bluish Gray

Technic Beam 1 x ...

Part #: 41677 2× White

Technic Axle and ...

Part #: 41678 4× Light Bluish Gray

Technic Wedge Bel...

Part #: 4185 4× Light Bluish Gray

Technic Axle and ...

Part #: 42003 10× Black

Wheel 11 x 8 with...

Part #: 42610 28× Light Bluish Gray

Technic Pin 1/2 w...

Part #: 4274 14× Light Bluish Gray

Technic Axle Pin ...

Part #: 43093 39× Blue

Technic Axle 7

Part #: 44294 3× Light Bluish Gray

Technic Pin Conne...

Part #: 44809 5× Black

Technic Axle 3

Part #: 4519 40× Light Bluish Gray

Technic Worm Gear

Part #: 4716 2× Light Bluish Gray

Technic Pin Conne...

Part #: 48989 11× Light Bluish Gray

Technic Axle and ...

Part #: 53586 1× Flat Silver

Technic Axle 8 wi...

Part #: 55013 5× Dark Bluish Gray

Technic Pin Conne...

Part #: 55615 2× Light Bluish Gray

Wheel 18mm x 14mm...

Part #: 55982 2× Light Bluish Gray

Technic Tread Spr...

Part #: 57519 4× Black

Technic Axle 5.5 ...

Part #: 59426 4× Dark Bluish Gray

Technic Axle Conn...

Part #: 59443 4× Black

Technic Axle Conn...

Part #: 59443 12× Red

Technic Beam 1 x ...

Part #: 60483 23× Dark Bluish Gray

Technic Beam 3 x ...

Part #: 60484 2× Dark Bluish Gray

Technic Beam 3 x ...

Part #: 60484 12× Light Bluish Gray

Technic Axle 9

Part #: 60485 2× Light Bluish Gray

Brick Sloped 18° ...

Part #: 61409 8× Dark Bluish Gray

Plate Round 1 x 1...

Part #: 6141 2× Trans-Orange

Plate Round 1 x 1...

Part #: 6141 3× Trans-Clear

String Reel 2 x 1...

Part #: 61510 1× Light Bluish Gray

Technic Universal...

Part #: 61903 1× Light Bluish Gray

Technic Pin Conne...

Part #: 62462 3× Light Bluish Gray

Technic Pin Conne...

Part #: 62462 1× Yellow

Technic Axle and ...

Part #: 63869 14× Light Bluish Gray

Technic Beam 5 x ...

Part #: 64178 2× Light Bluish Gray

Technic Beam Fram...

Part #: 64179 2× Light Bluish Gray

Technic Axle and ...

Part #: 6536 8× Light Bluish Gray

Technic Pin Long ...

Part #: 6558 129× Blue

Technic Axle 3 wi...

Part #: 6587 6× Dark Tan

Technic Gear 12 T...

Part #: 6589 4× Tan

Technic Pin with ...

Part #: 6628 4× Black

Technic Beam 1 x ...

Part #: 6629 4× Blue

Technic Beam 1 x ...

Part #: 6632 4× Black

Part #: 76244 2× White

Tile 2 x 4 with G...

Part #: 87079 2× White

Technic Panel Fai...

Part #: 87080 6× Blue

Technic Axle 4 wi...

Part #: 87083 14× Dark Bluish Gray

Technic Panel Fai...

Part #: 87086 5× Blue

Technic Pin Conne...

Part #: 87408 3× Black

Bar 3L

Part #: 87994 2× Light Bluish Gray

Technic Link Trea...

Part #: 88323 90× Dark Bluish Gray

Technic Linear Ac...

Part #: 92693 1× Light Bluish Gray

Technic Axle and ...

Part #: 92907 6× Black

Technic Gear 16 T...

Part #: 94925 3× Light Bluish Gray

Technic Axle 4 wi...

Part #: 99008 5× Tan

Motor, Large, Pow...

Part #: 99499 1× Light Bluish Gray

Technic Beam Tria...

Part #: 99773 2× Dark Bluish Gray

Technic Beam Tria...

Part #: 99773 2× Black

This set offers a wide array of Technic pins and beams in useful quantities for MOC builders. The abundance of dark bluish gray treads is particularly valuable for creating custom tracked vehicles.

🛒 Where to Buy

eBay

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Walmart

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$142.49

Target

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$149.99

💎 Notable Parts

Blue Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots (129x) $6.45

Dark Bluish Gray Technic Link Tread Wide with Two Pin Holes, Reinforced (90x) $13.50

Blue Technic Beam 1 x 15 Thick (40x) $4.00

Light Bluish Gray Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] (50x) $5.00

Black Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] (36x) $3.60

Est. BrickLink Part Value

$32.55

💡 MOC Potential

🚗 Mobile rocket launch platform

🤖 Industrial robot arm

🚗 Heavy-duty recovery vehicle

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 6 videos

3.0 /5

Mixed

0% positive

BlockTalk AI

The LEGO Technic Crawler Crane 42042 and the Liebherr LR 13000 42146 are generally well-received, especially the Liebherr LR 13000 for its advanced pulley system. Unbrickme considers the Liebherr LR 13000 worth the $700 price tag, while RacingBrick explores the LR 13000's lifting capabilities and compares it to other models.

Crawler Crane - LEGO Technic - Designer Video 42042

LEGO • 396.5K views Review

Lego Technic Crawler Crane Set 42042 | Unboxing Building Review

BrickVault • 115.3K views Unboxing

Every Single LEGO Technic Crawler Crane Ranked!

Unbrickme • 29.9K views Review

Community Sentiment

Based on 6 YouTube reviews

Not enough Reddit data

YouTube

3.0 /5

Mixed

0% positive

Positive

Mixed

Critical

BlockTalk AI Analysis

What the Community Says

6 YouTube reviews

BlockTalk AI Summary

RacingBrick provides detailed building reviews and load tests of the Liebherr LR 13000, addressing its size relative to other models. BrickVault offers an unboxing and building review of the 42042 Crawler Crane, while the LEGO channel showcases the design features presented by Milan and Markus.