Kai's Dragon Mech Battle Pack (71851-1) is a Ninjago LEGO set released in 2026 with 85 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Ninjago sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 3 minifigures and 31 unique part types.
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Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
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Release year
2026
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Catalog scale
85 parts listed · 31 inventory lines tracked
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Minifigures
3 in this set's inventory — verify completeness when buying used
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Build manual
Digital booklet available on this page — use it to verify bag contents
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Shipping weight (est.)
~110 g for parts inventory (excludes box/minifig packaging)
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Before you buy used
Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing
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Market value
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Building instructions
Official LEGO instructions — read on BrickID
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Minifigures in Kai's Dragon Mech Battle Pack
Parts in this set
31 parts · updating…
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Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small53451 · ×4 · Black -
Bracket 1 x 2 - 1 x 2 Inverted99780 · ×2 · Orange -
Bracket 2 x 2 with 1 x 2 Vertical Studs41682 · ×2 · Black -
Brick Curved 2 x 2 x 2/315068 · ×2 · Red -
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)54200 · ×1 · Orange -
![Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid]](https://cdn.rebrickable.com/media/parts/elements/6581704.jpg)
Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid]22388 · ×3 · Trans-Orange -
Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder15571 · ×2 · Red -
![Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]](https://cdn.rebrickable.com/media/parts/elements/366021.jpg)
Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]3660 · ×2 · Red -
Brick Special 1 x 1 with Studs on 2 Sides47905 · ×1 · Dark Bluish Gray -
Cockpit 4 x 2 x 3 with Pin Hole, and 2 Clips98876 · ×1 · Dark Bluish Gray -
Creature Body Part, Barb Large (Claw, Talon) with Clip16770 · ×4 · Pearl Gold -
Creature Body Part, Dragon / Thestral Wing with Bar Connection and Marbled Bright Light Orange Pattern38547pat0002 · ×2 · Red -
Flames 5 x 7 x 1 x 1/3 with Studs, Handle7727 · ×1 · Trans-Orange -
![Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]](https://cdn.rebrickable.com/media/parts/elements/4587052.jpg)
Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]60897 · ×2 · Orange -
![Plate Special 1 x 2 [Open O Top Clip]](https://cdn.rebrickable.com/media/parts/elements/6347310.jpg)
Plate Special 1 x 2 [Open O Top Clip]44861 · ×2 · Black -
![Plate Special 1 x 2 [Side Handle Closed Ends]](https://cdn.rebrickable.com/media/parts/elements/4226876.jpg)
Plate Special 1 x 2 [Side Handle Closed Ends]48336 · ×2 · Red -
Plate Special 1 x 2 5.9mm Centre Side Towball Socket14704 · ×4 · Light Bluish Gray -
Plate Special 1 x 2 Rounded with 2 Open Studs35480 · ×8 · Dark Red -
Plate Special 1 x 2 with 2 End Towballs3170 · ×1 · Black -
Plate Special 1 x 2 with 5.9mm Towball Socket and Towball14419 · ×4 · Dark Bluish Gray -
Plate Special 1 x 2 with Clip Horizontal on Side11476 · ×1 · Dark Red -
Plate Special 1 x 2 with End Towball22890 · ×2 · Dark Bluish Gray -
Plate Special 2 x 3 with Rocks27261 · ×2 · Red -
Plate Special, 2 x 2 Studs and Handle, Closed Ends (Mech Chest Plate / Armor)27167 · ×1 · Dark Red -
Technic Brick Special 1 x 2 with Pin Hole and 1 x 2 Plate73109 · ×1 · Red -
Technic Pin with Friction Ridges Lengthwise with No Center Slots61332 · ×1 · Black -
Tile 1 x 2 with Groove3069b · ×2 · Trans-Orange -
Tile Round 1 x 1 Half Circle24246 · ×4 · Red -
Tile Round 2 x 2 with Gold Dragon Head on Dark Blue Background print14769pr0027 · ×1 · Pearl Gold -
Weapon Hilt Symmetric66909 · ×1 · Dark Bluish Gray -
![Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]](https://cdn.rebrickable.com/media/parts/elements/6116596.jpg)
Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]21459 · ×4 · Pearl Gold