Deep-Sea Research Submarine (42201-1) is a Technic LEGO set released in 2025 with 413 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. This set includes 111 unique part types.
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Building instructions
Official LEGO instructions — read on BrickID
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Parts in this set
111 parts · page 1 of 3 · updating…
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Bar 2L with Stop in Center78258 · ×2 · Black -
Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end25214 · ×6 · Yellow -
Brick Round 2 x 2 with Axle Hole3941 · ×1 · Medium Nougat -
Brick Round 2 x 2, Pin Holes17485 · ×6 · White -
Brick Round Curved 1 x 1 x 1 1/3 Quarter Dome1871 · ×6 · Black -
Brick Round Curved 1 x 1 x 1 1/3 Quarter Dome1871 · ×6 · White -
Equipment Paint Roller Brush Handle Smooth Handle34076 · ×2 · Black -
![Hinge Cylinder 1 x 2 Locking with 1 Finger and Axle Hole On Ends [No Side Slots]](https://cdn.rebrickable.com/media/parts/elements/6265704.jpg)
Hinge Cylinder 1 x 2 Locking with 1 Finger and Axle Hole On Ends [No Side Slots]53923 · ×2 · Light Bluish Gray -
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)4032a · ×6 · White -
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)4032a · ×1 · Medium Nougat -
![Plate Round 2 x 2 with Rounded Bottom [Boat Stud]](https://cdn.rebrickable.com/media/parts/elements/4214760.jpg)
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]2654 · ×2 · Trans-Yellow -
![Plate Round 2 x 2 with Rounded Bottom [Boat Stud]](https://cdn.rebrickable.com/media/parts/elements/265401.jpg)
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]2654 · ×3 · White -
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)18674 · ×2 · Black -
Propeller 7 Blade 6 Diameter87751 · ×3 · Flat Silver -
Slope 18° 2 x 1 x 2/3 with 4 Slots / Grate61409 · ×2 · Dark Bluish Gray -
![Steering Wheel Small, 2 x 2 [Reinforced]](https://cdn.rebrickable.com/media/parts/elements/6057397.jpg)
Steering Wheel Small, 2 x 2 [Reinforced]16091 · ×1 · Black -
Sticker Sheet for Set 42201-110110645 · ×1 · [No Color/Any Color] -
Technic Axle 2 Notched32062 · ×14 · Red -
Technic Axle 34519 · ×4 · Light Bluish Gray -
Technic Axle 3 with Stop24316 · ×2 · Reddish Brown -
Technic Axle 3 with Stud6587 · ×1 · Dark Tan -
Technic Axle 43705 · ×3 · Red -
Technic Axle 4 with Centre Stop99008 · ×2 · Tan -
Technic Axle 532073 · ×9 · Yellow -
Technic Axle 5 with Stop15462 · ×4 · Reddish Brown -
![Technic Axle 5.5 with Stop [Rounded Short End]](https://cdn.rebrickable.com/media/parts/elements/4508553.jpg)
Technic Axle 5.5 with Stop [Rounded Short End]59426 · ×1 · Dark Bluish Gray -
Technic Axle 63706 · ×1 · Black -
Technic Axle 744294 · ×1 · Light Bluish Gray -
Technic Axle and Pin Connector Angled #2 - 180°32034 · ×3 · Light Bluish Gray -
Technic Axle and Pin Connector Angled #2 - 180°32034 · ×2 · Dark Bluish Gray -
Technic Axle and Pin Connector Perpendicular6536 · ×3 · Light Bluish Gray -
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes42003 · ×5 · Yellow -
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes42003 · ×2 · Black -
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole32184 · ×2 · Light Bluish Gray -
Technic Axle and Pin Connector Perpendicular Double32291 · ×4 · Black -
![Technic Axle and Pin Connector Perpendicular Double Split [Reinforced]](https://cdn.rebrickable.com/media/parts/elements/6349281.jpg)
Technic Axle and Pin Connector Perpendicular Double Split [Reinforced]69819 · ×2 · Black -
![Technic Axle Connector Double Flexible [Rubber]](https://cdn.rebrickable.com/media/parts/elements/4198367.jpg)
Technic Axle Connector Double Flexible [Rubber]45590 · ×2 · 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 · ×9 · Dark Bluish Gray -
![Technic Axle Connector with Axle Hole [Reinforced]](https://cdn.rebrickable.com/media/parts/elements/6331716.jpg)
Technic Axle Connector with Axle Hole [Reinforced]42135 · ×2 · Black -
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle11214 · ×7 · Red -
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle11214 · ×2 · Dark Bluish Gray -
Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle18651 · ×5 · Black -
Technic Axle Pin with Friction Ridges Lengthwise43093 · ×25 · Blue -
Technic Axle Pin without Friction Ridges Lengthwise3749 · ×8 · Tan -
Technic Axle Towball2736 · ×2 · Light Bluish Gray -
Technic Beam 1 x 11 Thick32525 · ×3 · Dark Bluish Gray -
Technic Beam 1 x 11.5 Double Bent Thick32009 · ×2 · Yellow -
Technic Beam 1 x 15 Thick with Alternating Holes71710 · ×1 · Dark Bluish Gray