River Steamboat (21356-1) is a LEGO Ideas and CUUSOO LEGO set released in 2025 with 4,090 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing LEGO Ideas and CUUSOO sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 640 unique part types.
- → Read official LEGO build manuals on this page
- → Browse the full parts inventory
- → Verify loose bricks with our free part scanner
- → Check market value for parts and minifigs
Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
-
Release year
2025
-
Catalog scale
4,090 parts listed · 640 inventory lines tracked
-
Minifigures
No minifigs in inventory (brick-only or Technic set)
-
Build manual
Digital booklet available on this page — use it to verify bag contents
-
Build complexity
Large set — expect sticker sheets or multiple subassemblies; inspect photos closely
-
Shipping weight (est.)
~7,069 g for parts inventory (excludes box/minifig packaging)
-
Before you buy used
Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing
Related sets in this theme
Market value
No estimate on BrickID yet
We don't pull live prices from marketplaces automatically — that requires paid seller API access. Check live listings below, or be the first to share a price you paid or saw.
Check live listings →Share a price you paid or saw
Help other collectors — we aggregate anonymous reports on this page.
Building instructions
Official LEGO instructions — read on BrickID
Download size:
Checking download size…
Download size unavailable
Browse the instructions on your own terms.
Parts in this set
640 parts · page 1 of 14 · updating…
-
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small53451 · ×16 · Black -
![Bar 1 x 3 [Clip / Anti-Stud]](https://cdn.rebrickable.com/media/parts/elements/4141580.jpg)
Bar 1 x 3 [Clip / Anti-Stud]4735 · ×1 · Black -
Bar 1 x 4 x 2 with Studs4083 · ×1 · Black -
![Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]](https://cdn.rebrickable.com/media/parts/elements/6439041.jpg)
Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]3484 · ×2 · Light Bluish Gray -
![Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]](https://cdn.rebrickable.com/media/parts/elements/6453281.jpg)
Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]3484 · ×2 · Pearl Gold -
![Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]](https://cdn.rebrickable.com/media/parts/elements/6439039.jpg)
Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]3484 · ×9 · Black -
Bar 2L with Stop in Center78258 · ×2 · Light Bluish Gray -
Bar 2L with Stop in Center78258 · ×7 · Black -
Bar 2L with Stop in Center78258 · ×2 · White -
Bar 3L87994 · ×2 · Light Bluish Gray -
Bar 3L87994 · ×1 · Black -
Bar 3L87994 · ×18 · White -
Bar 4L (Lightsaber Blade / Wand)30374 · ×1 · Pearl Gold -
Bar 4L (Lightsaber Blade / Wand)30374 · ×2 · White -
Bar 4L (Lightsaber Blade / Wand)30374 · ×2 · Light Bluish Gray -
Bar 6L with Stop Ring63965 · ×3 · Black -
Bar 6L with Stop Ring63965 · ×8 · White -
Bar Holder with Clip11090 · ×1 · Pearl Gold -
Bar Holder with Clip11090 · ×16 · Black -
Bar Holder with Hole and Bar Handle23443 · ×36 · White -
Bar Holder with Hole and Bar Handle23443 · ×1 · Black -
Bar, Angled with 1 x 1 Round Plate / Stud on End65578 · ×3 · Light Bluish Gray -
Barrel 2 x 2 x 22489 · ×2 · Dark Brown -
Boat Hull Section, Brick 16 x 13 x 264651 · ×1 · Reddish Brown -
Boat Hull Section, Large Middle 8 x 16 x 2 1/3 with 5 Holes95227 · ×4 · Reddish Brown -
Boat, Anchor - Two Top Holes95354 · ×1 · Black -
![Box 2 x 2 x 2 [Hollow Studs]](https://cdn.rebrickable.com/media/parts/elements/4211491.jpg)
Box 2 x 2 x 2 [Hollow Studs]4345b · ×2 · Light Bluish Gray -
Box 2 x 2 x 2 Door with Slot4346 · ×1 · Trans-Clear -
Box 2 x 2 x 2 Door with Slot4346 · ×1 · Light Bluish Gray -
Bracket 1 x 1 - 1 x 136841 · ×40 · White -
Bracket 1 x 1 - 1 x 1 Inverted36840 · ×4 · Dark Blue -
Bracket 1 x 2 - 1 x 2 Inverted99780 · ×34 · Dark Blue -
Bracket 1 x 2 - 1 x 2 Inverted99780 · ×30 · Black -
Bracket 1 x 2 - 1 x 2 Inverted99780 · ×1 · Tan -
Bracket 1 x 2 - 2 x 244728 · ×4 · Dark Tan -
Bracket 1 x 2 - 2 x 244728 · ×2 · Black -
Bracket 1 x 2 - 2 x 244728 · ×14 · White -
Bracket 1 x 2 - 2 x 2 Inverted99207 · ×4 · Reddish Brown -
Bracket 2 x 2 with 1 x 2 Vertical Studs41682 · ×3 · Black -
Brick 1 x 13005 · ×40 · Dark Tan -
Brick 1 x 13005 · ×40 · Dark Brown -
Brick 1 x 13005 · ×2 · White -
Brick 1 x 13005 · ×8 · Reddish Brown -
Brick 1 x 13005 · ×14 · Tan -
Brick 1 x 13005 · ×4 · Light Bluish Gray -
Brick 1 x 1 x 314716 · ×1 · Reddish Brown -
Brick 1 x 1 x 314716 · ×12 · White -
Brick 1 x 1 x 314716 · ×4 · Tan