# LEGO 71839-1 — Arin's Spinjitzu Battle Mech (2025)

Source: https://www.brickmissing.com/sets/71839-1-arins-spinjitzu-battle-mech
Publisher: BrickMissing (https://www.brickmissing.com) — free LEGO parts checker. Not affiliated with the LEGO Group.

Engage in epic battles from NINJAGO Dragons Rising season 3 with Arin’s Spinjitzu Battle Mech (71839). This powerful mech features posable arms and legs that tilt and twist, a rotating torso, and an opening chest to place a minifigure inside. It wields 2 large sword accessories, ready for action. The set includes Arin with his crystal katana sword and a Spectral Dragonian Warrior with their own sword accessory, plus an adorable Baby Riyu model. Create your ultimate fighting machine by swapping body parts with customisable mechs from the 2024 NINJAGO range, such as Cole’s Elemental Earth Mech (71806), Sora’s Elemental Tech Mech (71807), Kai’s Elemental Fire Mech (71808) and Lloyd’s Elemental Power Mech (71817). Prepare for thrilling good versus evil confrontations!

## Set facts

- Set number: 71839-1
- Name: Arin's Spinjitzu Battle Mech
- Theme: Ninjago › Dragons Rising Season 3
- Released: 2025
- Pieces: 213
- Distinct part + colour lots: 86
- LEGO retail price: € 19,99
- Build difficulty: easy
- Repairability: 3.5% of this set's lots are hard to replace (3 of 86 part+colour combinations appear in three or fewer sets in the entire LEGO catalog).

## Complete parts list (86 lots, 213 pieces)

Prices are the official LEGO Pick a Brick price per individual part, where LEGO publishes one.

| Qty | Part | Colour | Part no. | LEGO element ID | LEGO price each |
| ---: | --- | --- | --- | --- | --- |
| 10 | Slope Curved 2 x 1 No Studs [1/2 Bow] | Black | 11477 | 6047276 | €0,06 |
| 8 | Slope Curved 2 x 1 No Studs [1/2 Bow] | Bright Light Orange | 11477 | 6099728 | €0,06 |
| 2 | Plate Special 1 x 2 with 5.9mm Centre Side Towball | Dark Bluish Gray | 14417 | 6039479 | €0,16 |
| 2 | Plate Special 1 x 2 5.9mm Towball Socket | Light Bluish Gray | 14418 | 6043639 | €0,16 |
| 1 | Tile Round 2 x 2 with Dragon Head, White Gear in Dark Azure Circle print | Pearl Gold | 14769pr9988 | 6467216 | — |
| 1 | Slope Curved 2 x 2 x 2/3 | Bright Light Orange | 15068 | 6099730 | €0,13 |
| 2 | Plate Special 1 x 1 with Vertical Tooth | Pearl Gold | 15070 | 6083975 | €0,10 |
| 1 | Technic Brick Special 2 x 2 with 10.2mm Balls with Holes and Axle Hole | Dark Bluish Gray | 17114 | 6065816 | €0,38 |
| 1 | Plate Special Round 2 x 2 with Center Stud (Jumper Plate) | Black | 18674 | 6195325 | €0,07 |
| 1 | Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] | Opal Trans-Clear | 21459 | 6521182 | €0,13 |
| 4 | Tile Special 2 x 3 Pentagonal | Pearl Gold | 22385 | 6343767 | €0,13 |
| 4 | Wedge Plate 2 x 2 Cut Corner | Black | 26601 | 6174243 | €0,07 |
| 5 | Plate Special 2 x 3 with Rocks | Black | 27261 | 6195185 | €0,18 |
| 2 | Brick 2 x 2 | Bright Light Orange | 3003 | 6295078 | €0,13 |
| 1 | Plate 2 x 4 | Bright Light Orange | 3020 | 6097511 | €0,15 |
| 3 | Plate 2 x 3 | Black | 3021 | 302126 | €0,13 |
| 4 | Plate 2 x 2 | Black | 3022 | 302226 | €0,10 |
| 2 | Plate 2 x 2 | Light Bluish Gray | 3022 | 4211397 | €0,10 |
| 10 | Plate 1 x 2 | Trans-Dark Pink | 3023 | 6514008 | €0,10 |
| 2 | Technic Axle and Pin Connector Angled #2 - 180° | Reddish Brown | 32034 | 6333110 | €0,11 |
| 1 | Wedge Plate 4 x 6 Cut Corners | Black | 32059 | 4129572 | €0,53 |
| 6 | Technic Axle 2 Notched | Red | 32062 | 4142865 | €0,07 |
| 1 | Creature, Dragon, Baby, Dark Blue Markings, Lime Eyes print | Sand Blue | 3215pr0001 | 6434535 | — |
| 1 | Slope Inverted 45° 4 x 1 Double with 1 x 2 Recessed | Dark Bluish Gray | 32802 | 6185675 | €0,17 |
| 2 | Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip] | Dark Bluish Gray | 3484 | 6439040 | €0,07 |
| 5 | Plate Special 1 x 2 Rounded with 2 Open Studs | Black | 35480 | 6210270 | €0,07 |
| 1 | Large Figure Weapon Sword, 3 Bar Holes and Axle Hilt | Pearl Gold | 35633 | 6330240 | €0,85 |
| 4 | Bracket 1 x 1 - 1 x 1 Inverted | Dark Bluish Gray | 36840 | 6225494 | €0,06 |
| 2 | Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] | Black | 3839b | 383926 | €0,11 |
| 4 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | Dark Bluish Gray | 4032a | 4211042 | €0,06 |
| 4 | Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised - Updated Version | Black | 4304 | 6469445 | €0,11 |
| 2 | Wedge Plate 3 x 2 Right | Bright Light Orange | 43722 | 6020146 | €0,15 |
| 2 | Wedge Plate 3 x 2 Left | Bright Light Orange | 43723 | 6020145 | €0,15 |
| 1 | Bracket 1 x 2 - 2 x 2 | Light Bluish Gray | 44728 | 6117967 | €0,10 |
| 1 | Dish 2 x 2 Inverted [Radar] | Trans-Dark Pink | 4740 | 6245302 | €0,10 |
| 1 | Wedge Curved 2 x 3 x 2/3 Two Studs, Wing End | Black | 47456 | 4285883 | €0,18 |
| 2 | Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End | Pearl Gold | 47457 | 4286597 | €0,15 |
| 1 | Technic Tooth 1 x 3 with Axle Hole [Hollow Underside] | Pearl Gold | 48267 | 6385549 | €0,17 |
| 1 | Brick Special 1 x 2 with Rotation Joint Pin | White | 4920 | 6472887 | €0,41 |
| 2 | Large Figure Cover 4 x 5 x 2 with Bar, 4 Studs, Ridged | Pearl Gold | 4986 | 6466418 | €1,00 |
| 2 | Brick Special 1 x 2 with Studs on 2 Sides | Black | 52107 | 4253815 | €0,16 |
| 1 | Large Figure Weapon Hook | Pearl Gold | 5310 | 6481366 | €1,54 |
| 2 | Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small | Pearl Gold | 53451 | 6270109 | €0,07 |
| 2 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Dark Bluish Gray | 54200 | 4504378 | €0,06 |
| 1 | Wedge Plate 6 x 3 Right | Black | 54383 | 4283046 | €0,16 |
| 1 | Wedge Plate 6 x 3 Left | Black | 54384 | 4283047 | €0,16 |
| 4 | Technic Brick Modified 2 x 2 with Ball and Axle Hole, with 6 Holes in Ball | Black | 57909b | 6521191 | €0,28 |
| 4 | Technic Axle Connector Smooth [with x Hole + Orientation] | Reddish Brown | 59443 | 4531751 | €0,06 |
| 1 | Cone 1 x 1 [Top Groove] | Pearl Gold | 59900 | 4529247 | €0,05 |
| 2 | Slope 65° 2 x 1 x 2 | Black | 60481 | 4515373 | €0,12 |
| 2 | Technic Pin with Friction Ridges Lengthwise with No Center Slots | Black | 61332 | 6279875 | €0,06 |
| 4 | Plate Round 1 x 1 with Solid Stud | Trans-Dark Pink | 6141 | 6514060 | €0,05 |
| 6 | Plate Round 1 x 1 with Solid Stud | Pearl Gold | 6141 | 4523159 | €0,05 |
| 2 | Plate Special 1 x 2 with Clip Horizontal on End | Dark Bluish Gray | 63868 | 6336990 | €0,15 |
| 2 | Flame / Headwear Accessory Plume / Feather, Triple Point | Trans-Dark Pink | 64647 | 6303223 | €0,17 |
| 1 | Plate Special 4 x 4 with 2 x 2 Opening | Dark Bluish Gray | 64799 | 6186825 | €0,29 |
| 1 | Weapon Hilt Symmetric | Black | 66909 | 6331084 | €0,10 |
| 6 | Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole, No Arm Holes | Dark Bluish Gray | 67696 | 6338291 | €0,42 |
| 4 | Plate Round Corner 3 x 3 with 2 x 2 Round Cutout | Black | 68568 | 6325190 | €0,13 |
| 1 | Plant / Animal Body Part, Tree / Branch / Tail / Appendage / Tentacle with Pin | Light Aqua | 69858 | 6544733 | €0,16 |
| 2 | Technic Brick Special 1 x 2 with Pin Hole and 1 x 2 Plate | Light Bluish Gray | 73109 | 6326478 | €0,21 |
| 2 | Plate Special 1 x 2 with Clip Vertical on End | Black | 78256 | 6350725 | €0,19 |
| 5 | Plate Angled 2 x 2 with Step and Hole in Center | Bright Light Orange | 79846 | 6466696 | €0,39 |
| 1 | Plate Angled 2 x 2 with Step and Hole in Center | Black | 79846 | 6469080 | €0,39 |
| 1 | Large Figure Cover 4 x 3 x 2 with Bar, 4 Studs, Ridged | Bright Light Orange | 79896 | 6538415 | €0,97 |
| 2 | Brick Special 2 x 5 with Slope, Studs on Side | Bright Light Orange | 79897 | 6440445 | €0,59 |
| 1 | Brick Special 1 x 2 x 1 1/3 with Rotation Joint Socket | Dark Bluish Gray | 80431 | 6398662 | €0,59 |
| 2 | Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style] | Black | 85080 | 4567436 | €0,10 |
| 4 | Brick Special 1 x 1 with Stud on 1 Side | Black | 87087 | 4558954 | €0,11 |
| 2 | Plate Special 1 x 2 with Angled Handles on Side | Black | 92692 | 4604304 | €0,19 |
| 6 | Arm Mechanical with Clip [Thick Support] | Pearl Gold | 98313 | 6262192 | €0,18 |
| 2 | Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] | Bright Light Orange | 99563 | 6236454 | €0,05 |
| 2 | Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] | Pearl Gold | 99563 | 6207933 | €0,05 |
| 2 | Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] | Black | 99563 | 6156991 | €0,05 |
| 8 | Bracket 1 x 2 - 1 x 2 | Pearl Gold | 99781 | 6493687 | €0,10 |
| 1 | Hair Coiled, Straight Sides | Black | 80682 | 6382532 | €0,29 |
| 1 | Minifig Neckwear Bandana (Ninjago) | Black | 15619 | 6269936 | €0,13 |
| 1 | Hips and Bright Light Orange Legs with Black Belt, Dark Bluish Grey Pocket, Gold Flask, Orange Knee Wraps print | Bright Light Orange | 970c38pr0003 | 6519418 | — |
| 1 | Torso, Odd Arms, Black Cloak, Orange Straps, Magenta Dragon print, Left Bright Light Orange Arm, Right Black Arm, Black Hands | Bright Light Orange | 973e142pr0001 | 6528560 | — |
| 1 | Minifig Head Arin, Thick Raised Eyebrows, Smirk, Stubbles print | Yellow | 28621pr3991 | 6434457 | — |
| 1 | Minifig Neckwear Armour with Dragon Jaw | Dark Blue | 5985 | 6544132 | €0,62 |
| 1 | Minifig Head Spectral Dragonian Warrior, Medium Azure Face, Dark Blue Lines, Red Eyes, White Fangs, Red Mouth, Medium Azure/Red Shapes in Back | Light Aqua | 28621pr9670 | 6540556 | — |
| 1 | Torso, Red Belt, Silver Dragon Skull, Horns print, Trans-Light Blue Arms, Red Hands | Light Aqua | 973c65h22pr0001 | 6544436 | — |
| 1 | Creature Body Part, Dragon, Head | Pearl Titanium | 5975 | 6544125 | €0,58 |
| 2 | Animal Body Part, Horn (Cattle) / Tentacle / Vine / Branch / Tongue - Long | Red | 13564 | 6269079 | €0,12 |
| 1 | Lower Body, Ghost with Marbled Light Aqua pattern | Trans-Light Blue | 19859pat0016 | 6545648 | €1,14 |

## Notes

- Track which of these parts you own and see what is missing: https://www.brickmissing.com/sets/71839-1-arins-spinjitzu-battle-mech
- Inventory data is based on official LEGO inventories via the Rebrickable catalog, updated daily.
- Part images, minifigure lists and related sets are on the set page: https://www.brickmissing.com/sets/71839-1-arins-spinjitzu-battle-mech