How many pieces are in the Lloyd's Hydro Mech?

Lloyd's Hydro Mech contains 228 pieces.

What age is the Lloyd's Hydro Mech recommended for?

This set is recommended for ages 7+.

When was the Lloyd's Hydro Mech released?

Lloyd's Hydro Mech was released in 2021.

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🏛 Ninjago

Set #71750

Lloyd's Hydro Mech

Lloyd's Hydro Mech is an awesome underwater adventure in a box.

Before you buy

Who it's for: Ages 7+ · Beginner build Great for kids aged 7+ and Ninjago enthusiasts
Build: 228 pieces · about 2 hours Build time is an estimate.
Price: $19.99 list price · 8.8¢ per piece
Availability: Retired at LEGO

★★★☆☆ 3.7 community rating from 117 ratings

Fans appreciate the set's posability and the inclusion of Scuba Lloyd, but some feel the mech design is a bit simplistic for older builders. The set is generally well-received as a fun, playable model at a reasonable price point.

$19.99

Check price on eBay

📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

Lloyd's Hydro Mech is an awesome underwater adventure in a box. This set brings the Ninjago Seabound storyline to life, letting kids and adult fans alike dive into the action with a posable mech and cool minifigures.

This set is perfect for Ninjago fans and kids who love mechs. The build is straightforward enough for younger builders, but still engaging, and the final model is great for play and display.

Skip this if you're looking for a challenging, complex build. For older builders seeking a more intricate mech experience, consider larger LEGO mechs from themes like Marvel or Overwatch.

✨ New

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How does this mech compare to other Ninjago mechs in terms of size and playability? What are some creative ways to expand this set with other Ninjago Seabound sets? How does the value of this set compare to other retired Ninjago sets? Is this set better for play or display, and how durable is the final model?

🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI

🧩

228

Pieces

⏱

2.0h

Estimated Build Time

📊

Beginner

Difficulty

👤

Ages

Build Highlights:

Easy-to-follow instructions
Simple Technic connections for stability
Fun color scheme and underwater details
Good posability for dynamic play

📈 Investment Analysis

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI

Not enough price history for a trend

B-

Investment Grade

⏳ Retired

Lloyd's Hydro Mech, being a retired Ninjago set, has moderate investment potential. The Ninjago theme maintains consistent popularity, especially among younger collectors. Its relatively low piece count and initial price point mean it won't likely skyrocket in value, but complete, unopened sets should see gradual appreciation, especially if the Seabound storyline remains popular. The presence of exclusive minifigure variants adds some appeal.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

⚖ Compare Similar Sets

Ninjago Legacy • 171 pcs

$19.99

Epic Battle Set - Kai vs. Skulkin

Ninjago • 61 pcs

$9.99

This set offers a smaller, more affordable entry point into the world of Ninjago mechs compared to larger sets like the Fire Stone Mech (71720-1). Its simplicity makes it ideal for younger builders, while older fans might prefer the complexity and size of sets like the LEGO Ninjago Legacy Golden Mech (70666-1), if they can find it on the secondary market. It's a good choice for those who want a quick and satisfying build without a huge investment.

2 Minifigures Included

Lloyd - Scuba (Seabound)

The set includes a Scuba Lloyd minifigure, exclusive to the Seabound subtheme, making it a desirable addition for collectors. The Maaray Guard is a common antagonist figure.

📦 Parts Inventory

Official piece count: 228
Parts cataloged in this inventory: 97 unique parts, 220 pieces
Minifigures: 2

The official piece count includes the 9 parts inside the set's minifigures, which this inventory lists separately; the remaining difference of 1 piece is within the tolerance of the catalog data.

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Minifig Footwear ...

Part #: 10190 2× Black

Minifig Footwear ...

Part #: 10190 2× Dark Turquoise

Technic Pin Conne...

Part #: 10197 2× Black

Plate Special 2 x...

Part #: 10247 1× Dark Bluish Gray

Bar Holder with Clip

Part #: 11090 2× Black

Bracket 5 x 2 x 1...

Part #: 11215 1× Black

Brick Curved 2 x ...

Part #: 11477 2× Dark Bluish Gray

Plate Special 1 x...

Part #: 14418 1× Light Bluish Gray

Plate Special 1 x...

Part #: 14704 3× Light Bluish Gray

Tile 2 x 2 Corner

Part #: 14719 1× Black

Brick Curved 2 x ...

Part #: 15068 4× Black

Brick Curved 2 x ...

Part #: 15068 4× Bright Light Orange

Tile Special 1 x ...

Part #: 15712 4× Sand Green

Tile Special 1 x ...

Part #: 15712 1× Pearl Gold

Technic Brick Spe...

Part #: 17114 1× Dark Bluish Gray

Plate Special 1 x...

Part #: 18649 2× Black

Weapon Sword / Ka...

Part #: 21459 1× Flat Silver

Tile Special 2 x ...

Part #: 22385 4× Sand Green

Brick Wedged, Slo...

Part #: 22391 3× Sand Green

Plate Special 1 x...

Part #: 22890 2× Dark Bluish Gray

Bar Holder with H...

Part #: 23443 1× Light Bluish Gray

Brick Curved Inve...

Part #: 24201 3× Light Bluish Gray

Wedge Plate 2 x 2...

Part #: 24299 1× Sand Green

Wedge Plate 2 x 2...

Part #: 24307 1× Sand Green

Tile Special 1 x ...

Part #: 2432 1× Black

Tassel with 1 x 1...

Part #: 25375 1× Pearl Gold

Plate Special 1 x...

Part #: 2540 4× Pearl Gold

Plate Round 2 x 2...

Part #: 2654 1× Trans-Clear

Plate Round 2 x 2...

Part #: 2654 4× Black

Wedge Plate 2 x 2...

Part #: 26601 1× Light Bluish Gray

Flexible Ribbed H...

Part #: 27328 1× Flat Silver

Bracket 1 x 2 - 1...

Part #: 28802 2× Black

Brick Special 1 x...

Part #: 30136 2× Light Bluish Gray

Plate Special 2 x...

Part #: 30157 2× Light Bluish Gray

Plate 2 x 4

Part #: 3020 3× Light Bluish Gray

Plate 2 x 3

Part #: 3021 4× Dark Bluish Gray

Plate 1 x 2

Part #: 3023 3× Bright Light Orange

Plate 1 x 2

Part #: 3023 7× Light Bluish Gray

Plate 1 x 2

Part #: 3023 5× Black

Plate 1 x 1

Part #: 3024 2× Black

Plate 2 x 8

Part #: 3034 1× Black

Technic Axle 2 No...

Part #: 32062 5× Red

Plate Special Rou...

Part #: 32828 1× Black

Weapon Sword Hilt...

Part #: 36017 1× Black

Brick 1 x 3

Part #: 3622 2× Light Bluish Gray

Brick Sloped Inve...

Part #: 3665 2× Black

Technic Brick 1 x...

Part #: 3700 2× Light Bluish Gray

Plate 1 x 4

Part #: 3710 4× Black

Brick Sloped Inve...

Part #: 3747b 2× Black

Plate 2 x 10

Part #: 3832 1× Light Bluish Gray

Brick Round 2 x 2...

Part #: 3941 1× Light Bluish Gray

Plate Round 2 x 2...

Part #: 4032a 2× White

Plate Round 2 x 2...

Part #: 4032a 3× Black

Plate Special 1 x...

Part #: 41740 1× Reddish Brown

Technic Pin 1/2 w...

Part #: 4274 1× Blue

Flag 2 x 2 Trapez...

Part #: 44676 4× Sand Green

Bracket 1 x 2 - 2...

Part #: 44728 4× Dark Tan

Plate Special 1 x...

Part #: 44861 3× Dark Bluish Gray

Brick Wedged, Cur...

Part #: 47456 1× Black

Brick Wedged, Slo...

Part #: 47759 2× Dark Bluish Gray

Plate Special 1 x...

Part #: 48336 1× Black

Bar 1L with Clip ...

Part #: 48729b 1× Black

Technic Beam 1 x ...

Part #: 50923 2× Dark Bluish Gray

Brick Curved 3 x ...

Part #: 50950 2× Bright Light Orange

Wedge Plate 2 x 4

Part #: 51739 1× Black

Hinge Cylinder 1 ...

Part #: 53923 2× Black

Brick Sloped 30° ...

Part #: 54200 2× Bright Light Orange

Hinge Brick 1 x 2...

Part #: 54672 2× Light Bluish Gray

Technic Axle Conn...

Part #: 59443 1× Light Bluish Gray

Cone 1 x 1 [Top G...

Part #: 59900 1× Pearl Gold

Plate Special 1 x...

Part #: 60470b 1× Black

Plate Special 1 x...

Part #: 60478 2× Light Bluish Gray

Brick Sloped 65° ...

Part #: 60481 4× Sand Green

Plate Special 1 x...

Part #: 60897 4× Black

Technic Pin with ...

Part #: 61332 1× Black

Bar 6L with Stop ...

Part #: 63965 1× Black

Technic Beam 1 x ...

Part #: 64276 2× Black

Technic Axle and ...

Part #: 6536 6× Black

Technic Pin with ...

Part #: 66906 2× Red

Brick Curved 4 x ...

Part #: 66955 3× Black

Windscreen with P...

Part #: 69564pat0001 1× Trans-Light Blue

Windscreen with P...

Part #: 69564pr0001 1× Trans-Light Blue

Equipment Disc Am...

Part #: 69567pat0002 1× Pearl Gold

Fin Jagged with A...

Part #: 76919 2× Pearl Gold

Sticker Sheet for...

Part #: 78482 1× [No Color/Any Color]

Plate Round 1 x 1...

Part #: 85861 1× Pearl Gold

Technic Brick 1 x...

Part #: 85943 2× Dark Bluish Gray

Brick Sloped 30° ...

Part #: 85984 2× Sand Green

Technic Axle 4 wi...

Part #: 87083 2× Dark Bluish Gray

Aircraft Fuselage...

Part #: 87616 1× Dark Green

Technic Brick Spe...

Part #: 92013 4× Black

Panel 1 x 2 x 1 w...

Part #: 93095 1× Reddish Brown

Brick Curved 4 x ...

Part #: 93273 1× Black

Technic Axle Conn...

Part #: 93571 2× Black

Brick Round 3 x 4...

Part #: 93604 1× Bright Light Orange

Brick Round 2 x 2...

Part #: 98100 2× Light Bluish Gray

Propeller 1 Blade...

Part #: 98135 1× Pearl Gold

Tile Round 1 x 1

Part #: 98138 2× Trans-Clear

Weapon Sai

Part #: 98139 1× Pearl Titanium

Pneumatic Hose Co...

Part #: 99021 2× Dark Bluish Gray

Plate Special 2 x...

Part #: 99206 1× Tan

Plate Special 2 x...

Part #: 99206 1× Light Bluish Gray

Bracket 1 x 2 - 2...

Part #: 99207 2× Black

Tile Special 1 x ...

Part #: 99563 5× Pearl Gold

Bracket 1 x 2 - 1...

Part #: 99780 4× Dark Tan

This set features a good selection of Sand Green and Pearl Gold elements, useful for builders looking to add unique colors to their parts collection. The Technic connectors are also handy for creating sturdy models.

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📖 Building Instructions 2

BI 3105, 80+4, 71750 V29

Download PDF

BI 3105, 80+4, 71750 V39

Download PDF

Inventory Statistics

Unique Parts

228

Official Piece Count

220

Cataloged Inventory Pieces

Minifigures

Spare Parts

The official piece count includes the 9 parts inside the set's minifigures, which this inventory lists separately; the remaining difference of 1 piece is within the tolerance of the catalog data.

Inventory Version: 1

Missing a piece? Use the Missing Piece Checker.