How many pieces does the LEGO Deep-Sea Research Submarine (42201-1) have?

The LEGO Deep-Sea Research Submarine set (42201-1) contains 413 pieces. It was released in 2025 as part of the LEGO Technic theme.

How can I find missing parts for LEGO set 42201-1?

On BrickMissing you can check which parts from the LEGO Deep-Sea Research Submarine (42201-1) you already own. Add your LEGO collection and we'll show exactly which of the 413 pieces you're missing and which you already have.

Can I build the LEGO Deep-Sea Research Submarine with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 413 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Deep-Sea Research Submarine from?

The LEGO Deep-Sea Research Submarine (42201-1) belongs to the LEGO Technic theme. You can browse all Technic sets on BrickMissing to find more sets from this theme.

Deep-Sea Research Submarine

42201-1 Technic 2025 413 parts 9.9% repair risk Intermediate

The LEGO Technic Deep-Sea Research Submarine (42201-1) from 2025 enables ocean exploration with 413 pieces. It features an operational steering mechanism and three spinning propellers for movement. Inside, the cockpit includes a seat and controls for a pilot. This submarine also integrates three air tanks for buoyancy, and an extending arm to grab the barrel accessory from the seabed. The Technic design showcases engineering principles through its gear-driven steering, offering a detailed representation of deep-sea vehicles. Technic pins secure the arm's articulation, ensuring sturdy movement.

View at LEGO.com € 39,99→ lego.com

42201-1

3D build progress

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Parts Inventory

🧱 413 parts

Part	Color	Qty	LEGO price each
Sticker Sheet for Set 42201-1 10110645	Unknown	1×	Check price → View
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle 11214	Red	7×	€0,29 View at LEGO → View
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle 11214	Dark Bluish Gray	2×	€0,29 View at LEGO → View
Technic Pin Connector Perpendicular 2 x 4 Bent - Beam with 90 Hole Ø 4.8 11455	Black	4×	€0,29 View at LEGO → View
Technic Beam 1 x 5 Thin with Axle Holes on Ends 11478	Black	4×	€0,25 View at LEGO → View
Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes] 14720	Dark Bluish Gray	1×	€0,36 View at LEGO → View
Technic Axle 5 with Stop 15462	Reddish Brown	4×	€0,11 View at LEGO → View
Steering Wheel Small, 2 x 2 [Reinforced] 16091	Black	1×	€0,11 View at LEGO → View
Brick Round 2 x 2, Pin Holes 17485	White	6×	€0,25 View at LEGO → View
Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle 18651	Black	5×	€0,08 View at LEGO → View
Technic Pin Connector Round 1L [Beam] 18654	Yellow	6×	€0,05 View at LEGO → View
Technic Pin Connector Round 1L [Beam] 18654	Black	3×	€0,05 View at LEGO → View