Catamaran Sea Battle
71748-1 Ninjago 2021 780 parts 7.5% repair risk Advanced
Engage in an epic high-seas conflict with the LEGO Ninjago 71748-1 Catamaran Sea Battle, a 780-piece set from 2021. This action-packed Ninjago set stages a dramatic confrontation between two formidable catamarans. One of these striking vessels features a unique play function: it cleverly splits into three distinct boat toys, one of which securely contains a mini prison for captured foes. The set includes a robust lineup of six minifigures: Island Jay, Island Kai, and Island Zane prepare for battle against Chief Mammatus, Thunder Keeper, and Rumble Keeper. Each character is armed with an array of spears, swords, and shields, facilitating dynamic roleplay. The modular design of the splitting catamaran, utilizing clip and bar connections for smooth transformation, allows for varied scenarios as the ninja heroes navigate the treacherous waters.
Parts Inventory
| Part | Qty | LEGO price each |
|---|---|---|
![]() Technic Pin Connector Hub with 2 Perpendicular Axles 10197 | 8× | €0,18 |
![]() Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] 10247 | 2× | €0,10 |
![]() Slope Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] 11153 | 4× | Check price → View |
![]() Slope Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] 11153 | 2× | €0,12 |
![]() Brick Special 1 x 2 with 2 Studs on 1 Side 11211 | 2× | €0,13 |
![]() Brick Special 1 x 2 with 2 Studs on 1 Side 11211 | 2× | €0,13 |
![]() Plate 3 x 3 11212 | 2× | €0,12 |
![]() Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle 11214 | 2× | €0,29 |
![]() Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom 11215 | 1× | Check price → View |
![]() Plate Special 1 x 2 with Pin Hole on Top 11458 | 6× | €0,10 |
![]() Plate Special 1 x 2 with Clip Horizontal on Side 11476 | 4× | €0,15 |
![]() Slope Curved 2 x 1 No Studs [1/2 Bow] 11477 | 4× | €0,06 |
Repairability
Can you fix Catamaran Sea Battle if a piece goes missing?
21 of the 280 part+color combinations in this set appear in 3 or fewer sets ever made. Lose one of those and a replacement is very hard to find.
Theme average
6.4%
All sets
6.7%
Hardest to replace
More Ninjago sets
Browse more LEGO Ninjago sets related to Catamaran Sea Battle, including models from 2021 and other sets in the same theme.
Build DNA
Parts inventory insights for Catamaran Sea Battle
780 pieces puts this build +71% against the average Ninjago set and +45% against the average 2021 release.

Vs average Ninjago set
Average Ninjago set: 456 pieces across 410 other sets.
Vs average 2021 set
Average 2021 set: 539 pieces across 471 other sets.
Color profile
Dominant color
Dark Bluish Gray
Unique parts
0.2 pieces per unique type
Repeat factor
Average pieces per unique type.
Most used part
Tile Special 2 x 3 Pentagonal
16xResults are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.
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![Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib]](https://cdn.rebrickable.com/media/parts/elements/6047417.jpg)
![Slope Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges]](https://cdn.rebrickable.com/media/parts/elements/6045944.jpg)
![Slope Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges]](https://cdn.rebrickable.com/media/parts/elements/6045937.jpg)







![Slope Curved 2 x 1 No Studs [1/2 Bow]](https://cdn.rebrickable.com/media/parts/elements/6249427.jpg)