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. Collectors browsing Technic sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. 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 · Light Bluish Gray -
Plate 1 x 13024 · ×6 · Black -
Plate 1 x 13024 · ×2 · Trans-Clear -
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/6047276.jpg)
Slope Curved 2 x 1 No Studs [1/2 Bow]11477 · ×6 · Black -
![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 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 · ×22 · Red -
Technic Axle 2 Notched32062 · ×2 · Black -
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 · ×2 · Blue -
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 #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 · ×2 · Light Bluish Gray -
Technic Axle and Pin Connector Perpendicular Triple63869 · ×3 · Black -
![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