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Jay's Electro Mech

Jay's Electro Mech

Retired
Set number
71740-1
Theme
Ninjago
Year
2021
Pieces
106
Minifigures
2 total (2 distinct designs) · 1 exclusive
Age
4+
Availability
Retail
Packaging
Box
Box size (L × W × H)
10.3 × 7.5 × 2.4 in (26.2 × 19.1 × 6.1 cm)
Model size (L × W × H)
3.9 × 6.3 × 6.7 in (10 × 16 × 17 cm)
Retail price
  • US $19.99
  • Canada CAD $24.99
  • UK £17.99
  • Europe €19.99
Store prices the store's own offer
Out of stock
  • Not in stock since we started checking on 2026-09-27
  • Listed at $19.99
Last checked
View on Walmart
Release date
2021-03-01
Retired
2022-12-31
Shelf life
1 year and 10 months
Instructions
Book 1 of 2 Book 2 of 2
All 4 instruction PDFs

Minifigures (2)

Parts (62 lots, 3 exclusive parts)

QtyPartNameColorSets
1 Bracket 1 x 2 - 2 x 2 (Black) 44728 Bracket 1 x 2 - 2 x 2 Black In 574 sets
2 Brick Arch 1 x 4 (Black) 3659 Brick Arch 1 x 4 Black In 141 sets
1 Brick Round 4 x 4 Centre Hole (Black) 87081 Brick Round 4 x 4 Centre Hole Black In 162 sets
1 Plate Special 2 x 2 with Groove and Center Stud (Jumper) (Black) 87580 Plate Special 2 x 2 with Groove and Center Stud (Jumper) Black In 438 sets
2 Plate Special 2 x 2 with Towball and Hole (Black) 15456 Plate Special 2 x 2 with Towball and Hole Black In 189 sets
1 Technic Brick Special 2 x 2 with Pin Hole, with 2 Rotation Joint Sockets (Black) 48172 Technic Brick Special 2 x 2 with Pin Hole, with 2 Rotation Joint Sockets Black In 113 sets
1 Technic Pin with Friction Ridges Lengthwise with No Center Slots (Black) 61332 Technic Pin with Friction Ridges Lengthwise with No Center Slots Black In 1,225 sets
1 Vehicle Base, Brick Special 4 x 10 with 4 Pins (Black) 30076 Vehicle Base, Brick Special 4 x 10 with 4 Pins Black In 43 sets
4 Brick Curved 3 x 2 No Studs (Blue) 24309 Brick Curved 3 x 2 No Studs Blue In 15 sets
1 Mech Leg, Left, with Black Pin (Blue) 70946c01 Mech Leg, Left, with Black Pin Blue Exclusive
1 Mech Leg, Right, with Black Pin (Blue) 70943c01 Mech Leg, Right, with Black Pin Blue Exclusive
2 Plate 2 x 2 (Blue) 3022 Plate 2 x 2 Blue In 896 sets
1 Wedge Brick Special 4 x 10 x 4 with 3 x 4 Recessed and Pin Holes- Plane Bottom (Blue) 44665 Wedge Brick Special 4 x 10 x 4 with 3 x 4 Recessed and Pin Holes- Plane Bottom Blue Exclusive
1 Animal, Scorpion (Dark Blue) 30169 Animal, Scorpion Dark Blue In 12 sets
2 Bracket 1 x 2 - 2 x 2 (Dark Blue) 44728 Bracket 1 x 2 - 2 x 2 Dark Blue In 36 sets
2 Brick Curved 4 x 3 with 3 Layers, 1 x 3 Cutout on Underside (Dark Blue) 66955 Brick Curved 4 x 3 with 3 Layers, 1 x 3 Cutout on Underside Dark Blue In 7 sets
2 Brick Sloped Inverted 45° 6 x 2 Double with 2 x 4 Recessed (Dark Blue) 22889 Brick Sloped Inverted 45° 6 x 2 Double with 2 x 4 Recessed Dark Blue In 7 sets
4 Mudguard 2 x 4 with Molded Headlights (Dark Blue) 44674 Mudguard 2 x 4 with Molded Headlights Dark Blue In 9 sets
1 Plate 1 x 8 (Dark Blue) 3460 Plate 1 x 8 Dark Blue In 68 sets
1 Wedge Plate 2 x 4 (Dark Blue) 51739 Wedge Plate 2 x 4 Dark Blue In 70 sets
4 Brick Round 4 x 4 Centre Hole (Dark Bluish Gray) 87081 Brick Round 4 x 4 Centre Hole Dark Bluish Gray In 99 sets
1 Brick Sloped 45° 2 x 1 Double with Inside Stud Holder (Dark Bluish Gray) 3044c Brick Sloped 45° 2 x 1 Double with Inside Stud Holder Dark Bluish Gray In 80 sets
2 Brick Special 1 x 2 with Vertical Clip [Open O Clip] (Dark Bluish Gray) 30237b Brick Special 1 x 2 with Vertical Clip [Open O Clip] Dark Bluish Gray In 82 sets
1 Brick Wedged, Sloped 4 x 4 Fractured Polygon Top (Dark Bluish Gray) 64867 Brick Wedged, Sloped 4 x 4 Fractured Polygon Top Dark Bluish Gray In 30 sets
1 Launcher, Brick Special 2 x 6 Spring Shooter with Light Bluish Gray Top (Dark Bluish Gray) 49743c01 Launcher, Brick Special 2 x 6 Spring Shooter with Light Bluish Gray Top Dark Bluish Gray In 21 sets
1 Rock Panel 2 x 4 x 6 (Dark Bluish Gray) 47847 Rock Panel 2 x 4 x 6 Dark Bluish Gray In 107 sets
2 Brick Sloped 30° 1 x 2 x 2/3 (Dark Purple) 85984 Brick Sloped 30° 1 x 2 x 2/3 Dark Purple In 82 sets
2 Plate 1 x 4 (Dark Purple) 3710 Plate 1 x 4 Dark Purple In 101 sets
4 Tile Round 2 x 2 with Bottom Stud Holder (Dark Purple) 14769 Tile Round 2 x 2 with Bottom Stud Holder Dark Purple In 42 sets
2 Brick Curved 2 x 2 with Lip, No Studs (Dark Tan) 30602 Brick Curved 2 x 2 with Lip, No Studs Dark Tan In 2 sets
2 Tile 1 x 3 with Wood Grain Print (Dark Tan) 63864pr0012 Tile 1 x 3 with Wood Grain Print Dark Tan In 14 sets
1 Tile 2 x 3 (Dark Tan) 26603 Tile 2 x 3 Dark Tan In 59 sets
1 Large Figure Weapon 6 Blade Ninja Star / Shuriken (Flat Silver) 41125 Large Figure Weapon 6 Blade Ninja Star / Shuriken Flat Silver In 2 sets
1 Weapon Sword / Scimitar Notched Blade (Flat Silver) 60752 Weapon Sword / Scimitar Notched Blade Flat Silver In 67 sets
2 Plant, Round 1 x 1 - 3 Bamboo Leaves (Green) 30176 Plant, Round 1 x 1 - 3 Bamboo Leaves Green In 293 sets
2 Brick 1 x 3 (Light Bluish Gray) 3622 Brick 1 x 3 Light Bluish Gray In 515 sets
2 Plate 2 x 3 (Light Bluish Gray) 3021 Plate 2 x 3 Light Bluish Gray In 1,152 sets
2 Plate Special 1 x 2 5.9mm Centre Side Towball Socket (Light Bluish Gray) 14704 Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray In 849 sets
2 Plate Special 1 x 2 with Clips Horizontal [Open O Clips] (Light Bluish Gray) 60470b Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Light Bluish Gray In 448 sets
1 Projectile, Arrow with Shaft, Hollow Black Rubber End (Light Bluish Gray) 46537 Projectile, Arrow with Shaft, Hollow Black Rubber End Light Bluish Gray In 11 sets
1 Technic Pin without Friction Ridges Lengthwise (Light Bluish Gray) 3673 Technic Pin without Friction Ridges Lengthwise Light Bluish Gray In 1,346 sets
2 Tile 2 x 4 with Groove (Light Bluish Gray) 87079 Tile 2 x 4 with Groove Light Bluish Gray In 620 sets
1 Insect, Spider with Elongated Tail Section (Medium Nougat) 29111 Insect, Spider with Elongated Tail Section Medium Nougat In 31 sets
1 Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End (Olive Green) 47457 Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End Olive Green In 26 sets
2 Brick Round 2 x 2 [Grill] (Pearl Gold) 92947 Brick Round 2 x 2 [Grill] Pearl Gold In 69 sets
1 Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder (Pearl Gold) 15571 Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder Pearl Gold In 64 sets
4 Tile Round 2 x 2 with Black Shuriken Print (Pearl Gold) 14769pr1173 Tile Round 2 x 2 with Black Shuriken Print Pearl Gold In 2 sets
1 Tile Round 2 x 2 with Golden Dragon on Red Background Print (Pearl Gold) 14769pr9998 Tile Round 2 x 2 with Golden Dragon on Red Background Print Pearl Gold In 7 sets
1 Weapon Sai (Pearl Gold) 98139 Weapon Sai Pearl Gold In 112 sets
3 Weapon Sword, Big Blade with Bar (Pearl Gold) 98137 Weapon Sword, Big Blade with Bar Pearl Gold In 83 sets
2 Brick Sloped 75° 2 x 1 x 3 with Hollow Stud (Reddish Brown) 4460b Brick Sloped 75° 2 x 1 x 3 with Hollow Stud Reddish Brown In 90 sets
1 Plate Round Half 4 x 8 (Tan) 22888 Plate Round Half 4 x 8 Tan In 77 sets
1 Brick Round 2 x 2 with Axle Hole (Trans-Orange) 3941 Brick Round 2 x 2 with Axle Hole Trans-Orange In 56 sets
2 Animal Body Part, Dog Bone [Long] (White) 92691 Animal Body Part, Dog Bone [Long] White In 66 sets
1 Tile Special 2 x 2 with Top Pin [Squared Holes] (White) 49153 Tile Special 2 x 2 with Top Pin [Squared Holes] White In 63 sets
2 Plate Round 4 x 4 with Pin Hole (Yellow) 60474 Plate Round 4 x 4 with Pin Hole Yellow In 127 sets
1 Plate Special 1 x 2 with Clips Horizontal [Open O Clips] (Yellow) 60470b Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Yellow In 104 sets
1 Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] (Yellow) 10247 Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] Yellow In 32 sets
2 Technic Brick 1 x 2 [1 Pin Hole] (Yellow) 3700 Technic Brick 1 x 2 [1 Pin Hole] Yellow In 332 sets
1 Technic Pin with Friction Ridges Lengthwise with No Center Slots (Black) 61332 Technic Pin with Friction Ridges Lengthwise with No Center Slots Black In 1,225 sets extra
1 Technic Pin without Friction Ridges Lengthwise (Light Bluish Gray) 3673 Technic Pin without Friction Ridges Lengthwise Light Bluish Gray In 1,346 sets extra
1 Weapon Sai (Pearl Gold) 98139 Weapon Sai Pearl Gold In 112 sets extra

Building instructions

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