LEGO 3800
Ultimate Builders Set

LEGO 3800 Ultimate Builders Set box image
Set number
3800
Theme
RCX
Pieces
322 pcs
Year
2001
Used & parts
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“Ultimate Builders Set” is LEGO® “RCX” theme set number 3800. Released in 2001, it has 322 pieces. With Re:GO you can automatically work out what percentage of this set you can build from the LEGO parts you already own, along with the missing parts and an estimated cost. Use the links below to compare prices on Amazon, Rakuten, Yahoo! Shopping, Mercari and Yahoo! Auctions, and find the best deal on new, used, or individual parts.

Part breakdown 70 types

Color split (most first)
Black×148
Light Gray×76
Blue×68
Trans-Clear×8
Dark Gray×8
White×6
Yellow×3
Trans-Neon Orange×2
Trans-Neon Green×2
[No Color/Any Color]×1
Main parts (most used first)
6141 Plate Round 1 x 1 with Solid Stud
Light Gray · ×36
6558 Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots
Black · ×26
32054 Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]
Blue · ×24
2780 Technic Pin with Friction Ridges Lengthwise and Center Slots
Black · ×20
6541 Technic Brick 1 x 1 with Pin Hole
Black · ×14
32316 Technic Beam 1 x 5 Thick
Blue · ×8
32171pr0062 Large Figure Throwing Disk, MindStorms Print
Black · ×6
32278 Technic Beam 1 x 15 Thick
Black · ×6
32523 Technic Beam 1 x 3 Thick
Blue · ×6
32530 Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top]
Black · ×6
3749 Technic Axle Pin without Friction Ridges Lengthwise
Light Gray · ×6
6536 Technic Axle and Pin Connector Perpendicular
Black · ×6
32062 Technic Axle 2 Notched
Black · ×5
32123a Technic Bush 1/2 Smooth with Axle Hole Reduced
Light Gray · ×5
32278 Technic Beam 1 x 15 Thick
Blue · ×5
4519 Technic Axle 3
Black · ×5
2817 Plate Special 2 x 2 with 2 Pin Holes
Light Gray · ×4
32002 Technic Pin 3/4
Dark Gray · ×4
32028 Plate Special 1 x 2 with Door Rail
Light Gray · ×4
32039 Technic Axle Connector with Axle Hole
Black · ×4
32039 Technic Axle Connector with Axle Hole
Light Gray · ×4
32073 Technic Axle 5
Black · ×4
32140 Technic Beam 2 x 4 L-Shape Thick
Black · ×4
32184 Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole
Blue · ×4

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