Arin's Battle Mech

Retired

Set number

71804-1

Theme

Ninjago

Year

2024

Pieces

104

Minifigures

2 total (2 distinct designs)

Age

4+

Availability

Retail

Packaging

Box

Box size (L × W × H)

8.1 × 7.5 × 1.8 in (20.5 × 19.1 × 4.6 cm)

Retail price

• US $15.99
• Canada CAD $19.99
• UK £12.99
• Europe €14.99

Store prices the store's own offer

Out of stock

• Not in stock since we started checking on 2026-09-27
• Listed at $22.99

Last checked 2026-10-18 05:00:06 UTC

View on Walmart

Release date

2024-01-01

Retired

2025-12-31

Shelf life

2 years

Instructions

Book 1 of 2 Book 2 of 2

All 4 instruction PDFs

Minifigures (2)

• 

  Arin, Ninja Headwrap

  fig-014564

  In 2 sets
• 

  Wolf Mask Warrior, Shoulder Pads

  fig-014563

  In 9 sets

Qty	Image	Part	Name	Color	Sets
1		40379	Animal Body Part / Plant, Tail / Claw / Horn / Branch / Tentacle, End Section	Black	In 61 sets
1		4083	Bar 1 x 4 x 2 with Studs	Black	In 173 sets
2		30602	Brick Curved 2 x 2 with Lip, No Studs	Black	In 100 sets
2		70681	Brick Curved, 3 x 1 with 1/3 Inverted Cutout	Black	In 92 sets
1		52501	Brick Sloped Inverted 45° 6 x 1 Double with 1 x 4 Recessed	Black	In 77 sets
1		47905	Brick Special 1 x 1 with Studs on 2 Sides	Black	In 202 sets
2		16770	Creature Body Part, Barb Large (Claw, Talon) with Clip	Black	In 25 sets
1		18980	Plate Round Corners 2 x 6 Double	Black	In 162 sets
5		60470b	Plate Special 1 x 2 with Clips Horizontal [Open O Clips]	Black	In 591 sets
2		60478	Plate Special 1 x 2 with Handle on End [Closed Ends]	Black	In 525 sets
1		33909	Plate Special 2 x 2 with Only 2 studs	Black	In 409 sets
1		48172	Technic Brick Special 2 x 2 with Pin Hole, with 2 Rotation Joint Sockets	Black	In 113 sets
1		61332	Technic Pin with Friction Ridges Lengthwise with No Center Slots	Black	In 1,225 sets
3		15209	Tile Special 1 x 2 with Two Vertical Teeth / Tooth	Black	In 17 sets
1		51739	Wedge Plate 2 x 4	Black	In 214 sets
2		15706	Wedge Plate 4 Stud 45° Angle Plate	Black	In 104 sets
1		32059	Wedge Plate 4 x 6 Cut Corners	Black	In 92 sets
1		70946c01	Mech Leg, Left, with Black Pin	Bright Light Orange	In 2 sets
1		70943c01	Mech Leg, Right, with Black Pin	Bright Light Orange	In 2 sets
1		3021	Plate 2 x 3	Bright Light Orange	In 112 sets
3		3795	Plate 2 x 6	Bright Light Orange	In 108 sets
1		27167	Plate Special, 2 x 2 Studs and Handle, Closed Ends (Mech Chest Plate / Armor)	Bright Light Orange	In 4 sets
2		3068b	Tile 2 x 2 with Groove	Bright Light Orange	In 101 sets
6		93273	Brick Curved 4 x 1 Double, No Studs	Dark Blue	In 80 sets
1		3666	Plate 1 x 6	Dark Blue	In 196 sets
1		47847	Rock Panel 2 x 4 x 6	Dark Blue	In 3 sets
3		48336	Plate Special 1 x 2 [Side Handle Closed Ends]	Dark Bluish Gray	In 258 sets
2		22890	Plate Special 1 x 2 with End Towball	Dark Bluish Gray	In 344 sets
1		3700	Technic Brick 1 x 2 [1 Pin Hole]	Dark Bluish Gray	In 463 sets
1		28326	Wheel Arch, Mudguard 3 x 4 with 2 x 2 Plate	Dark Bluish Gray	In 35 sets
2		79846	Plate Angled 2 x 2 with Step and Hole in Center	Dark Green	Exclusive
1		22385	Tile Special 2 x 3 Pentagonal	Dark Green	In 25 sets
1		3022	Plate 2 x 2	Dark Purple	In 123 sets
3		14769	Tile Round 2 x 2 with Bottom Stud Holder	Dark Purple	In 42 sets
1		68297	Wedge Plate 4 x 8 Cut Corners	Dark Tan	In 7 sets
2		93789	Weapon Pike / Spear Flat End	Flat Silver	In 95 sets
1		93247	Weapon Sword / Khopesh	Flat Silver	In 8 sets
1		98876	Cockpit 4 x 2 x 3 with Pin Hole, and 2 Clips	Light Bluish Gray	In 3 sets
1		63783	Launcher, Brick Special 1 x 4 with Inside Clips (Disk Shooter)	Light Bluish Gray	In 18 sets
2		14704	Plate Special 1 x 2 5.9mm Centre Side Towball Socket	Light Bluish Gray	In 849 sets
2		44861	Plate Special 1 x 2, Top Clip [Open O]	Light Bluish Gray	In 254 sets
1		73109	Technic Brick Special 1 x 2 with Pin Hole and 1 x 2 Plate	Light Bluish Gray	In 241 sets
2		3004	Brick 1 x 2	Magenta	In 105 sets
1		3062b	Brick Round 1 x 1 Open Stud	Magenta	In 57 sets
4		3040b	Brick Sloped 45° 2 x 1 with Bottom Pin	Magenta	In 53 sets
1		2423	Plant, Leaves 4 x 3	Magenta	In 26 sets
1		11476	Plate Special 1 x 2 with Clip Horizontal on Side	Magenta	In 28 sets
1		64867	Brick Wedged, Sloped 4 x 4 Fractured Polygon Top	Opal Trans-Purple	In 3 sets
1		30385	Rock 1 x 1 Crystal 5 Point	Opal Trans-Purple	In 34 sets
1		87994	Bar 3L	Pearl Gold	In 162 sets
2		47456	Brick Wedged, Curved 2 x 3 x 2/3 Two Studs, Wing End	Pearl Gold	In 39 sets
1		41125	Large Figure Weapon 6 Blade Ninja Star / Shuriken	Pearl Gold	In 7 sets
1		15573	Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)	Pearl Gold	In 319 sets
1		75902pr0022	Shield Round Bowed with Gold Dragon, Red Eyes, Fans Print	Pearl Gold	In 4 sets
1		14769pr9988	Tile Round 2 x 2 with Dragon Head, White Gear in Dark Azure Circle Print	Pearl Gold	In 7 sets
1		98137	Weapon Sword, Big Blade with Bar	Pearl Gold	In 83 sets
2		21459	Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]	Pearl Gold	In 241 sets
2		11477	Brick Curved 2 x 1 No Studs [1/2 Bow]	Sand Blue	In 32 sets
1		54200	Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)	Trans-Red	In 359 sets
1		3673	Technic Pin without Friction Ridges Lengthwise	Yellow	In 215 sets
1		61332	Technic Pin with Friction Ridges Lengthwise with No Center Slots	Black	In 1,225 sets	extra
1		87994	Bar 3L	Pearl Gold	In 162 sets	extra
1		21459	Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]	Pearl Gold	In 241 sets	extra
1		54200	Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)	Trans-Red	In 359 sets	extra
1		3673	Technic Pin without Friction Ridges Lengthwise	Yellow	In 215 sets	extra

Building instructions

• BI 3102, 60, 71804 1/2 V29
• BI 3102, 64+4, 71804 2/2 V29
• BI 3102, 60, 71804 1/2 V39
• BI 3102, 64+4, 71804 2/2 V39

PDFs from LEGO.com. The same booklet is often printed in several versions (e.g. V29 EU A4 format, V39 US Letter format).