McLaren Senna GTR (42123-1) is a Technic LEGO set released in 2021 with 830 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. This set includes 131 unique part types.
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Building instructions
Official LEGO instructions — read on BrickID
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Parts in this set
131 parts · page 1 of 3 · updating…
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Axle Hose, Soft 11L32199 · ×3 · Blue -
Axle Hose, Soft 16L32202 · ×2 · Black -
Bar 4L (Lightsaber Blade / Wand)30374 · ×2 · White -
Bar 4L (Lightsaber Blade / Wand)30374 · ×2 · Trans-Red -
Hose Rigid 3mm D. 9L / 7.2cm75c09 · ×1 · Black -
![Panel 1 x 2 x 1 [Rounded Corners]](https://cdn.rebrickable.com/media/parts/elements/6146220.jpg)
Panel 1 x 2 x 1 [Rounded Corners]4865b · ×8 · Black -
Plate 1 x 13024 · ×2 · Trans-Clear -
Plate 1 x 13024 · ×2 · Light Bluish Gray -
Plate 1 x 13024 · ×6 · Black -
Plate 1 x 43710 · ×2 · Black -
Plate 1 x 63666 · ×1 · Light Bluish Gray -
Plate 1 x 83460 · ×2 · Black -
Plate 2 x 83034 · ×1 · Black -
Plate Special 1 x 2 with Pin Hole Underneath18677 · ×3 · Black -
Slope 30° 1 x 1 x 2/3 (Cheese Slope)54200 · ×4 · Trans-Clear -
Slope Brick Curved 2 x 4 x 2/3 No Studs, with Bottom Tubes88930 · ×1 · Light Bluish Gray -
![Slope Curved 2 x 1 No Studs [1/2 Bow]](https://cdn.rebrickable.com/media/parts/elements/6028813.jpg)
Slope Curved 2 x 1 No Studs [1/2 Bow]11477 · ×2 · Light Bluish Gray -
![Slope Curved 2 x 1 No Studs [1/2 Bow]](https://cdn.rebrickable.com/media/parts/elements/6047276.jpg)
Slope Curved 2 x 1 No Studs [1/2 Bow]11477 · ×6 · Black -
![Slope Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges]](https://cdn.rebrickable.com/media/parts/elements/4522034.jpg)
Slope Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges]11153 · ×1 · Black -
Sticker Sheet for Set 42123-172203 · ×1 · [No Color/Any Color] -
Technic Axle 2 Notched32062 · ×2 · Black -
Technic Axle 2 Notched32062 · ×22 · Red -
Technic Axle 34519 · ×6 · Yellow -
Technic Axle 3 with Stop24316 · ×13 · Reddish Brown -
Technic Axle 3 with Stud6587 · ×2 · Dark Tan -
Technic Axle 43705 · ×2 · Red -
Technic Axle 4 with Stop87083 · ×5 · Dark Bluish Gray -
Technic Axle 532073 · ×5 · Light Bluish Gray -
Technic Axle 5 with Stop15462 · ×2 · Reddish Brown -
Technic Axle 63706 · ×6 · Black -
Technic Axle 744294 · ×5 · Yellow -
Technic Axle 8 with Stop55013 · ×1 · Dark Bluish Gray -
Technic Axle 960485 · ×3 · Light Bluish Gray -
Technic Axle and Pin Connector Angled #132013 · ×5 · Light Bluish Gray -
Technic Axle and Pin Connector Angled #132013 · ×4 · Black -
Technic Axle and Pin Connector Angled #132013 · ×2 · Blue -
Technic Axle and Pin Connector Angled #2 - 180°32034 · ×6 · Red -
Technic Axle and Pin Connector Angled #4 - 135°32192 · ×2 · Light Bluish Gray -
Technic Axle and Pin Connector Angled #5 - 112.5°32015 · ×8 · Blue -
Technic Axle and Pin Connector Angled #6 - 90°32014 · ×2 · Black -
Technic Axle and Pin Connector Perpendicular6536 · ×19 · Black -
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes42003 · ×19 · Black -
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole32184 · ×3 · Light Bluish Gray -
Technic Axle and Pin Connector Perpendicular Double32291 · ×4 · Light Bluish Gray -
Technic Axle and Pin Connector Perpendicular Double Split41678 · ×6 · Black -
Technic Axle and Pin Connector Perpendicular Triple63869 · ×3 · Black -
Technic Axle and Pin Connector Perpendicular Triple63869 · ×2 · Light Bluish Gray -
![Technic Axle Connector Smooth [with x Hole + Orientation]](https://cdn.rebrickable.com/media/parts/elements/4516546.jpg)
Technic Axle Connector Smooth [with x Hole + Orientation]59443 · ×4 · Dark Bluish Gray