The Lego set Mobile Crane with the set number 8421 is part of the LEGO Technic theme. It was released in June 2005. The model has 1,884 pieces, and we estimate it takes around 4 - 5 hours to build. 62 Brickfact users have this set in their collection.
The set weighs about 3.560 kg. The box measures 25.7 x 18.9 x 3.8 in (65.2 x 48 x 9.6 cm). The recommended retail price is $149.99.
Lego 8421 product data
Set Information
Availability
Release
06/2005
Retiring Status
Retired (12/2007)
Price Information
RRP
$149.99
Insiders Points (for purchase at Lego)
975
Packaging
Weight
3.560 kg
Packaging dimensions
25.7 x 18.9 x 3.8 in
EAN (GTIN13)
5702014415409
Popularity with Brickfact users
- users have this set
- 62
62 Brickfact users have Mobile Crane in their collection.
Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of October 23, 2026.
LEGO 8421 price trend
Average sale price on secondary marketplaces – not the new price at retailers.
- Current market value
- $369.40
- Growth vs. RRP
- +146 % $149.99
- Range
- $304.57 – $369.40
- Average
- $334.88
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Part Lists for LEGO 8421 Mobile Crane
LEGO 8421 Frequently Asked Questions
Is LEGO 8421 still available?
LEGO has retired 8421 Mobile Crane, and no retailer in our price comparison currently sells it new. Its market value on secondary marketplaces is $369.40.
