BricksValue

LEGO Deep-Sea Research Submarine (42201)

Technic · 413 pieces

From $39.10 at Amazon · 2% off

Retiring by December 31, 2026 (70 days left) · How we estimate

LEGO Deep-Sea Research Submarine (42201)
1 / 13

Compare prices (US)

Regular price $39.99

See it at Amazon, $39.10

Last chance: New copies of retired sets tend to get scarcer and pricier.

. Amazon offers can be third-party (marked).

Also retiring soon in Technic

Price history

Lowest price today
$39.10
at Amazon
Lowest we’ve recorded
$20.29
Amazon, Oct 5, 2026
LEGO’s regular price
$39.99
today’s lowest is 2% off
Tracked since
Sep 29, 2026
25 price changes since
Price records (29)
  • October 21, 2026 · Amazon$39.10
  • October 20, 2026 · Amazon$39.99
  • October 19, 2026 · Amazon$39.14
  • October 19, 2026 · Amazon$38.50
  • October 18, 2026 · Amazon$39.14
  • October 18, 2026 · Targetout of stock$36.49
  • October 18, 2026 · Target$36.49
  • October 17, 2026 · Amazon$39.79
  • October 17, 2026 · Targetout of stock$36.49
  • October 16, 2026 · Amazon$36.49
  • October 16, 2026 · Target$36.49
  • October 15, 2026 · Amazon$36.10
  • October 15, 2026 · Amazon$39.99
  • October 14, 2026 · Amazon$38.95
  • October 14, 2026 · Amazon$39.79
  • October 13, 2026 · Amazon$38.95
  • October 13, 2026 · Amazon$38.00
  • October 12, 2026 · Amazon$38.21
  • October 11, 2026 · Best Buy$39.99
  • October 11, 2026 · Barnes & Noble$39.99
  • October 9, 2026 · Amazon$38.00
  • October 6, 2026 · Targetout of stock$20.29
  • October 5, 2026 · Amazon$20.29
  • October 5, 2026 · Target$20.29
  • October 5, 2026 · LEGO.comout of stock$39.99
  • October 2, 2026 · Amazon$28.99
  • September 29, 2026 · Amazon$28.89
  • September 29, 2026 · Target$28.99
  • September 29, 2026 · LEGO.com$39.99

Prices at LEGO.com, Amazon, Walmart, Target, Best Buy, and Barnes & Noble, checked daily. A line breaks when a store was out of stock or not selling the set.

LEGO Deep-Sea Research Submarine in other countries

The lowest price today in each country where LEGO sells it, converted at the European Central Bank’s rate. Delivery across borders isn’t included: most stores only ship inside their own country.

Exchange rates of October 22, 2026.

Resale value

What the LEGO Deep-Sea Research Submarine actually sold for on BrickLink, the LEGO-owned marketplace, in the last 6 months.

New

No sales in the last 6 months.

Used

$20.00

Median of 1 sale (US sellers)

-50% vs LEGO’s regular price ($39.99)

Sales on BrickLink, updated daily (last update October 23, 2026). Few sales mean a less reliable figure.

Set details

Pieces
413
Minifigures
None
Ages
9+
Released
2025
Set number
42201
Theme
Technic
Price per piece
9.5¢at today’s lowest price
LEGO.com rating
5

LEGO Deep-Sea Research Submarine building instructions

Official instructions from LEGO.com, free to download. The LEGO Builder app has them too, many with 3D steps. All instructions on LEGO.com

LEGO Deep-Sea Research Submarine parts list

413 pieces in 111 different parts and colors.

  • Technic Pin with Friction Ridges Lengthwise with No Center Slots, Black×3261332
  • Technic Axle Pin with Friction Ridges Lengthwise, Blue×2543093
  • Technic Pin 1/2 with Friction, Red×2489678
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole], Black×1765304
  • Technic Axle 2 Notched, Red×1432062
  • Technic Gear 12 Tooth Double Bevel, Black×1032270

Parts list: Rebrickable.

About the LEGO Deep-Sea Research Submarine

Inspire kids aged 9 and up to explore the secrets of the oceans with this Deep-Sea Research Submarine toy set (42201). The model is packed with features like those found on real submarines, including steering, 3 spinning propellers, 3 air tanks, and a cockpit with seat and controls. The submarine features an extending arm to grab and lift the barrel accessory as kids play out their own sea-bed adventures.

This submarine model kit comes from a range of LEGO® Technic™ sets which feature realistic movement to introduce young builders to the universe of engineering. This set makes a great gift for kids who enjoy buildable vehicle toys.

Let the LEGO Builder app guide your child on an intuitive building adventure, allowing them to zoom in and rotate models in 3D, save sets and track their progress.

  • Submarine toy set for kids aged 9 and up – Let young science and engineering fans create their own deep-sea adventures with this LEGO® Technic™ Deep-Sea Research Submarine toy
  • Lots of realistic features – This creative building set includes lots of realistic features like the rotating propellers and grabbing arm to help kids explore how submarines work
  • Opening cockpit – The transparent cockpit opens to give access to the seat and controls
  • Barrel accessory – The set comes with a barrel accessory, which kids can pick up using the submarine’s extending grabbing arm
  • A gift for kids – This set makes a fun gift idea for kids who like exploring science and engineering toys or anyone who is interested in submarines and deep-sea exploration
  • A helping hand – Discover intuitive instructions in the LEGO® Builder app, where builders can zoom in and rotate models in 3D, track their progress and save sets as they develop new skills
  • An introduction to engineering – LEGO® Technic™ sets featurerealistic movement and mechanisms to introduce young LEGO builders to the universe of engineering
  • Measurements – A 413-piece set with a model measuring over 6 in. (15 cm) high, 9.5 in. (25 cm) long and 6 in. (15 cm) wide

Description: LEGO.com.

LEGO Deep-Sea Research Submarine: FAQ

Is the LEGO Deep-Sea Research Submarine retiring?

Yes: the LEGO Deep-Sea Research Submarine is retiring soon. LEGO flags it “Retiring soon” on LEGO.com (it already carried the flag when we started tracking on September 29, 2026). Expect it to be gone by December 31, 2026 at the latest (70 days), possibly sooner once stock runs out. It is sold out on LEGO.com right now, often the last step before a set disappears. LEGO doesn’t publish exact dates: this one is our estimate.

How much is the LEGO Deep-Sea Research Submarine?

The lowest price we found today is $39.10 at Amazon, out of 3 stores selling it today (regular price $39.99). Prices change often: this page is updated every day.

Should I buy the LEGO Deep-Sea Research Submarine now or wait?

Sold out on LEGO.com and retiring soon. It’s already sold out on LEGO.com, and LEGO is retiring it (we expect it gone by December 31, 2026). The best price today is $39.10 at Amazon, 2% below LEGO’s regular price. New copies of retired sets tend to get scarcer and pricier.

Where can I find the instructions for the LEGO Deep-Sea Research Submarine?

LEGO publishes them for free on LEGO.com as a PDF, linked on this page, and in the LEGO Builder app.

How many pieces are in the LEGO Deep-Sea Research Submarine (42201)?

413 pieces. At today’s price, that’s 9.5¢ per piece.

When was the LEGO Deep-Sea Research Submarine released?

It was released in 2025.

What is the LEGO Deep-Sea Research Submarine worth?

Used, $20.00 (1 sale). LEGO’s regular price is $39.99.

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