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LEGO Technic 8421: Mobile Crane
 
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LEGO Technic 8421: Mobile Crane

by LEGO UK Limited
4.8 out of 5 stars  See all reviews (5 customer reviews) More about this product
Price: £399.96
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In stock.
Dispatched from and sold by FireStar Toys.

Only 1 left in stock--order soon.

Toy Safety

Manufacturer's minimum age: 10 years

Product Features

  • Motor and battery box to extend arm and lower hook!
  • Measures over 18 inches/46 cm long!
  • Pneumatic cylinder and air pump lift crane arm - release air pressure to lower boom.
  • Arm extends over 25 inches/64 cm long!
  • Boom rotates a full 360 degrees!
  • Includes instructions to rebuild into an Aerial Lift!
  • Realistic 6-wheel steering! Wheels drive pistons in V6 engine!
  • Requires 6 AA (1.5v) batteries, not included.
  • Recommended for skilled builders aged 11 years and over

Frequently Bought Together

LEGO Technic 8421: Mobile Crane + LEGO Technic 8285: Tow Truck + LEGO Technic 8275: Motorized Bulldozer
Price For All Three: £949.90

These items are shipped from and sold by different sellers. Show details

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5.0 out of 5 stars (5)  £169.99
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Product details

  • Product Dimensions: 65.2 x 48 x 9.6 cm ; 10 g
  • Boxed-product Weight: 3.5 Kg
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
  • Manufacturer recommended age: 10 years and up
  • Item model number: 8421
  • ASIN: B00097E4JW
  • Average Customer Review: 4.8 out of 5 stars  See all reviews (5 customer reviews)
  • Amazon.co.uk Sales Rank: 44,896 in Toys & Games (See Bestsellers in Toys & Games)

    Popular in this category:

    #31 in  Toys & Games > Construction Toys > LEGO > Transportation & Mechanical LEGO > Technics LEGO

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LEGO Technic 8421: Mobile Crane

LEGO Technic 8421: Mobile Crane

£399.96 Select this Item

Product Description

Manufacturer's Description

The ultimate construction vehicle!

The Mobile Crane towers above the construction site! This huge, detailed set features six-wheel steering, a telescoping boom that extends to twice its original length, pneumatic cylinders to raise and lower the boom, four retractable outriggers, motor and battery box. Authentic model for skilled builders!

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Customer Reviews

5 Reviews
5 star:
 (4)
4 star:
 (1)
3 star:    (0)
2 star:    (0)
1 star:    (0)
 
 
 
 
 
Average Customer Review
4.8 out of 5 stars (5 customer reviews)
 
 
 
 
Share your thoughts with other customers:
Most Helpful Customer Reviews

 
13 of 13 people found the following review helpful:
5.0 out of 5 stars A return to form for Technic Lego, 8 Feb 2006
By DR D MASSEY (Cambridge, UK) - See all my reviews
Durability:5.0 out of 5 stars Fun:5.0 out of 5 stars Educational:5.0 out of 5 stars 
Technic Lego lost its way over the past years and this set marks a return to form. I think it is one of the best sets ever produced.

The model is made in 2 sections: the main body and the crane itself. The body is packed with features including 6-wheel steering, working outriggers and a V6 engine. The steering geometry is perfect and allows for tight turning circles. The crane features a motorised boom that telescopes twice, utilising the longest technic axle ever produced. A clutch mechanism from the old supercar series allows the motor to extend the boom and drop the crane hook, or operate the hook independantly. The motor is from the now discontinued indoor radio control sets and seems to be the standard technic motor, having seen the 2006 sets. Two pneumatic cylinders in series lift the crane boom.

The instructions are clear to follow, taking up two sizeable books but I made several mistakes with the crane boom before I got it right. The string tends to tangle in the crane body if the crane is operated under no load, and the pneumatics drop the boom too abruptly- a minor modicifation is necessary to stop this happening.

Overall this is an extraordinary set and deserves a top rating.

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8 of 8 people found the following review helpful:
5.0 out of 5 stars Buy it direct from Lego, 4 Oct 2007
By Gareth Moore (Cambridge, UK) - See all my reviews
(REAL NAME)   
Durability:5.0 out of 5 stars Fun:5.0 out of 5 stars Educational:5.0 out of 5 stars 
This has been listed at 200 pounds for a long time on Amazon via resellers - however you can buy it for 100 pounds direct via mail order from the Lego store at lego.com. So don't waste your money...
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7 of 10 people found the following review helpful:
5.0 out of 5 stars Great Product, 16 Aug 2005
Durability:5.0 out of 5 stars Fun:5.0 out of 5 stars Educational:5.0 out of 5 stars 
Build Time: 8-10 Hours (When done Leisurely)

Lots of parts for your money: 1884

.

Lots of Mechanical features: Pneumatic pump, extending boom, 360 degree rotation, 6 wheel steering, etc.

Lots of useful part which can be used to build many other inventions of your own, can mix parts with Lego Mindstorms Robotics invention Set and create wonderful inventions programming the RCX (Microcomputer). Use your imagination!

God bless!

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Most Recent Customer Reviews

5.0 out of 5 stars one of a great pair of kits
THIS IS MAGNIFICENT THERE ARE`NT ENOUGH STARS TO RATE THIS, this huge project was a xmas pressie from my wife and at the time hard to get hold of, now it has pride of place... Read more
Published 1 month ago by P. barton

4.0 out of 5 stars Its Built!
I am an adult supposedly but decided to buy the Mobile crane as part of my Lego training in preparation for helping the children with their Lego bulldozer Xmas presents... Read more
Published 23 months ago by Mr. W. F. Smith

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