LEGO 42123
McLaren Senna GTR

LEGO 42123 McLaren Senna GTR box image
Set number
42123
Theme
Technic
Pieces
830 pcs
Year
2021
Used & parts
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“McLaren Senna GTR” is LEGO® “Technic” theme set number 42123. Released in 2021, it has 830 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 131 types

Color split (most first)
Black×440
Blue×160
Light Bluish Gray×96
Dark Bluish Gray×46
Red×32
Yellow×19
Reddish Brown×15
Tan×8
Trans-Clear×6
White×3
Trans-Red×2
Dark Tan×2
Main parts (most used first)
2780 Technic Pin with Friction Ridges Lengthwise and Center Slots
Black · ×146
42924 Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot
Blue · ×68
4274 Technic Pin 1/2
Blue · ×30
65487 Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge]
Black · ×27
32062 Technic Axle 2 Notched
Red · ×22
11214 Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle
Dark Bluish Gray · ×20
42003 Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes
Black · ×19
6536 Technic Axle and Pin Connector Perpendicular
Black · ×19
43093 Technic Axle Pin with Friction Ridges Lengthwise
Blue · ×17
32140 Technic Beam 2 x 4 L-Shape Thick
Black · ×16
32316 Technic Beam 1 x 5 Thick
Black · ×16
18654 Technic Pin Connector Round 1L [Beam]
Black · ×14
24316 Technic Axle 3 with Stop
Reddish Brown · ×13
3713 Technic Bush
Light Bluish Gray · ×13
41239 Technic Beam 1 x 13 Thick
Black · ×12
41677 Technic Beam 1 x 2 Thin
Black · ×12
43857 Technic Beam 1 x 2 Thick
Black · ×12
32523 Technic Beam 1 x 3 Thick
Black · ×11
32123b Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced
Light Bluish Gray · ×10
32526 Technic Beam 3 x 5 L-Shape Thick
Black · ×10
11946 Technic Panel Fairing #21 5L Small Smooth, Side B
Black · ×9
11947 Technic Panel Fairing #22 5L Small Smooth, Side A
Black · ×9
32015 Technic Axle and Pin Connector Angled #5 - 112.5°
Blue · ×8
32123b Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced
Yellow · ×8

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