Arin's Spinjitzu Battle Mech (71839-1) is a Ninjago LEGO set released in 2025 with 213 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 2 minifigures and 75 unique part types.
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Building instructions
Official LEGO instructions — read on BrickID
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Minifigures in Arin's Spinjitzu Battle Mech
Parts in this set
75 parts · page 1 of 2 · updating…
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Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small53451 · ×2 · Pearl Gold -
Arm Mechanical with Clip [Thick Support]98313 · ×6 · Pearl Gold -
Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]3484 · ×2 · Dark Bluish Gray -
Bracket 1 x 1 - 1 x 1 Inverted36840 · ×4 · Dark Bluish Gray -
Bracket 1 x 2 - 1 x 299781 · ×8 · Pearl Gold -
Bracket 1 x 2 - 2 x 244728 · ×1 · Light Bluish Gray -
Brick 2 x 23003 · ×2 · Bright Light Orange -
Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End47457 · ×2 · Pearl Gold -
Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style]85080 · ×2 · Black -
Brick Special 1 x 1 with Stud on 1 Side87087 · ×4 · Black -
Brick Special 1 x 2 with Rotation Joint Pin4920 · ×1 · White -
Brick Special 1 x 2 with Studs on 2 Sides52107 · ×2 · Black -
Brick Special 1 x 2 x 1 1/3 with Rotation Joint Socket80431 · ×1 · Dark Bluish Gray -
Brick Special 2 x 5 with Slope, Studs on Side79897 · ×2 · Bright Light Orange -
Cone 1 x 1 [Top Groove]59900 · ×1 · Pearl Gold -
Creature, Dragon, Baby, Dark Blue Markings, Lime Eyes print3215pr0001 · ×1 · Sand Blue -
Dish 2 x 2 Inverted [Radar]4740 · ×1 · Trans-Dark Pink -
Flame / Headwear Accessory Plume / Feather, Triple Point64647 · ×2 · Trans-Dark Pink -
Large Figure Cover 4 x 3 x 2 with Bar, 4 Studs, Ridged79896 · ×1 · Bright Light Orange -
Large Figure Cover 4 x 5 x 2 with Bar, 4 Studs, Ridged4986 · ×2 · Pearl Gold -
Large Figure Weapon Hook5310 · ×1 · Pearl Gold -
Large Figure Weapon Sword, 3 Bar Holes and Axle Hilt35633 · ×1 · Pearl Gold -
Plant / Animal Body Part, Tree / Branch / Tail / Appendage / Tentacle with Pin69858 · ×1 · Light Aqua -
Plate 1 x 23023 · ×10 · Trans-Dark Pink -
Plate 2 x 23022 · ×2 · Light Bluish Gray -
Plate 2 x 23022 · ×4 · Black -
Plate 2 x 33021 · ×3 · Black -
Plate 2 x 43020 · ×1 · Bright Light Orange -
Plate Angled 2 x 2 with Step and Hole in Center79846 · ×1 · Black -
Plate Angled 2 x 2 with Step and Hole in Center79846 · ×5 · Bright Light Orange -
Plate Round 1 x 1 with Solid Stud6141 · ×4 · Trans-Dark Pink -
Plate Round 1 x 1 with Solid Stud6141 · ×6 · Pearl Gold -
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)4032a · ×4 · Dark Bluish Gray -
Plate Round Corner 3 x 3 with 2 x 2 Round Cutout68568 · ×4 · Black -
Plate Special 1 x 1 with Vertical Tooth15070 · ×2 · Pearl Gold -
Plate Special 1 x 2 5.9mm Towball Socket14418 · ×2 · Light Bluish Gray -
Plate Special 1 x 2 Rounded with 2 Open Studs35480 · ×5 · Black -
Plate Special 1 x 2 with 5.9mm Centre Side Towball14417 · ×2 · Dark Bluish Gray -
Plate Special 1 x 2 with Angled Handles on Side92692 · ×2 · Black -
Plate Special 1 x 2 with Clip Horizontal on End63868 · ×2 · Dark Bluish Gray -
Plate Special 1 x 2 with Clip Vertical on End78256 · ×2 · Black -
Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment]3839b · ×2 · Black -
Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Half Hollow Anti-stud] - Updated Version4304 · ×4 · Black -
Plate Special 2 x 3 with Rocks27261 · ×5 · Black -
Plate Special 4 x 4 with 2 x 2 Opening64799 · ×1 · Dark Bluish Gray -
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)18674 · ×1 · Black -
Slope 30° 1 x 1 x 2/3 (Cheese Slope)54200 · ×2 · Dark Bluish Gray -
Slope 65° 2 x 1 x 260481 · ×2 · Black