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Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Lance's Mecha Horse

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70312 Lance's Mecha Horse

216 pieces in 102 part and color combinations, plus 3 minifigures.

The official piece count includes the 21 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

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Piece checklist

Technic Beams 24 pieces

  • Technic Beam 3 x 3 L-Shape Thin Black Part 32056 Element 6271810 or 4112287 ×2
  • Technic Beam 1 x 2 Thin Blue Part 41677 Element 6360123 or 4186834 ×8
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Blue Part 32271 Element 6136674 or 6024076 ×2
  • Technic Beam 1 x 9 Thick Blue Part 40490 Element 6115617 or 4239749 ×2
  • Technic Beam 1 x 4 Thin Dark Bluish Gray Part 32449 Element 6327561 or 4210749 ×4
  • Technic Beam 1 x 3 Thin Light Bluish Gray Part 6632 Element 6360043 or 4211566 ×1
  • Technic Beam 1 x 5 Thin Light Bluish Gray Part 32017 Element 4503416 or 4211554 ×1
  • Technic Beam 1 x 7 Bent (4 - 4) Thick Trans-Neon Orange Part 32348 Element 6102900 ×2
  • Technic Beam 1 x 4 Thin White Part 32449 Element 6360072 or 4144138 ×2

Technic Pins 22 pieces

  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×5
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×4
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×1
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Dark Bluish Gray Part 11214 Element 6015356 ×3
  • Technic Pin 1/2 with 2L Bar Extension Light Bluish Gray Part 61184 Element 6347715 or 4520320 ×2
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×5

Plates Special 20 pieces

  • Bracket 1 x 2 - 2 x 2 Inverted Black Part 99207 Element 6000650 ×2
  • Plate Special 1 x 2 with Clip Horizontal on Side Black Part 11476 Element 6313116 or 6132731 ×1
  • Plate Special 2 x 2 with 2 Pin Holes Black Part 2817 Element 281726 ×1
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Black Part 99206 Element 6052126 ×1
  • Plate Special 1 x 2 [Side Handle Closed Ends] Blue Part 48336 Element 4514398 or 4247103 ×1
  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes Dark Blue Part 92593 Element 6036240 ×6
  • Plate Special 1 x 4 Offset with Bar Holes Dark Bluish Gray Part 4590 Element 6302647 or 6086709 ×1
  • Plate Special 2 x 2 with 2 Pins Dark Bluish Gray Part 15092 Element 6284702 or 6066952 ×2
  • Bracket 1 x 2 - 1 x 2 Inverted Light Bluish Gray Part 99780 Element 6004990 ×1
  • Plate Special 1 x 2 with Pin Hole Underneath Light Bluish Gray Part 18677 Element 6168633 or 6089147 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) White Part 15573 Element 6550152 or 6051511 ×1
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] White Part 60470b Element 6347287 or 4556152 ×2

Technic Axles 18 pieces

  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×5
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×3
  • Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×4
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×2
  • Technic Axle 4 Red Part 3705 Element 6129995 or 4265797 ×2
  • Technic Axle 3 Yellow Part 4519 Element 6130007 ×2

Technic Connectors 18 pieces

  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×1
  • Technic Pin Connector 3L with 2 Pins and Center Hole Black Part 15461 Element 6055630 ×1
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Dark Bluish Gray Part 42003 Element 6273715 or 4210857 ×3
  • Technic Pin Connector Round 1L [Beam] Dark Bluish Gray Part 18654 Element 6100030 1 spare in the box ×1
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Light Bluish Gray Part 6553 Element 4211536 ×2
  • Technic Axle Connector Smooth [with x Hole + Orientation] Light Bluish Gray Part 59443 Element 4512360 ×5
  • Technic Axle and Pin Connector Perpendicular Split Light Bluish Gray Part 92907 Element 6279023 or 4630114 ×4
  • Technic Driving Ring Connector White Part 18948 Element 6276052 or 6100932 ×1

Bricks Sloped 13 pieces

  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Blue Part 61409 Element 4597338 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Blue Part 85984 Element 4651236 ×3
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] Blue Part 15672 Element 6069163 ×2
  • Brick Sloped Inverted 45° 2 x 1 Blue Part 3665 Element 366523 ×4
  • Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] Flat Silver Part 22388 Element 6127036 1 spare in the box ×2

Hinges, Arms and Turntables 10 pieces

  • Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Black Part 41532 Element 4159335 ×4
  • Hinge Brick 2 x 2 Top Plate Thin Blue Part 6134 Element 4195007 or 4118900 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers on Side, 9 Teeth Light Bluish Gray Part 60471 Element 4515341 ×4

Plates 10 pieces

  • Plate 1 x 4 Blue Part 3710 Element 371023 ×2
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×1
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×4
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×2
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×1

Technic Bricks 10 pieces

  • Technic Brick 1 x 2 [2 Pin Holes] Black Part 32000 Element 3200026 ×2
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Blue Part 32064a Element 6206251 or 6132158 ×3
  • Technic Brick 1 x 4 [3 Pin Holes] Blue Part 3701 Element 370123 ×2
  • Technic Brick 1 x 1 with Pin Hole Light Bluish Gray Part 6541 Element 4211535 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Light Bluish Gray Part 3700 Element 4211440 ×2

Bricks Curved 8 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Blue Part 11477 Element 6055065 ×2
  • Brick Curved 2 x 2 with Lip, No Studs Dark Blue Part 30602 Element 6441154 or 6110004 ×4
  • Brick Curved 2 x 2 x 2/3 Dark Blue Part 15068 Element 6554196 or 6061569 ×1
  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×1

Plates Round Curved and Dishes 7 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Neon Orange Part 6141 Element 6240218 or 3005747 1 spare in the box ×6
  • Plate Round 1 x 1 with Open Stud White Part 85861 Element 6168642 or 4547649 1 spare in the box ×1

Wheels and Tyres 7 pieces

  • Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow Spokes Flat Silver Part 55982 Element 6132436 ×1
  • Wheel Hard Plastic, Treaded with 7 Pin Holes (37mm D. x 22mm) Pearl Titanium Part 22410 Element 6122170 ×2
  • Technic Wedge Belt Wheel [aka Pulley] Trans-Neon Orange Part 4185 Element 6124680 or 4172601 ×4

Bricks Round and Cones 6 pieces

  • Cone 1 x 1 [Top Groove] Flat Silver Part 59900 Element 6121350 1 spare in the box ×1
  • Cone 1 x 1 [Top Groove] Trans-Neon Orange Part 59900 Element 6301326 or 6172239 1 spare in the box ×5

Tiles Special 6 pieces

  • Tile Special 1 x 1 with Clip with Rounded Edges Blue Part 15712 Element 6344028 or 6071264 ×2
  • Tile Special 2 x 3 Pentagonal Flat Silver Part 22385 Element 6128993 ×1
  • Tile Special 2 x 3 Pentagonal with Nexo Power Shield Print - Tractor Beam Trans-Neon Orange Part 22385pr0004 Element 6132736 ×1
  • Tile Special 1 x 1 with Clip with Rounded Edges White Part 15712 Element 6348055 or 6054551 ×2

Minifig Shields, Weapons, & Tools 5 pieces

  • Shield Pentagonal Flat Silver Part 22408 Element 6129534 ×1
  • Weapon Harpoon [Smooth Shaft] Flat Silver Part 18041 Element 6162578 or 6078471 1 spare in the box ×2
  • Weapon Lance Flat Silver Part 3849 Element 4611884 ×1
  • Weapon Crossbow and Bolt Pearl Titanium Part 2570 Element 6268844 or 4617248 ×1

Technic Bushes 5 pieces

  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×4
  • Technic Bush Red Part 3713 Element 6271820 or 4227155 1 spare in the box ×1

Bricks Special 4 pieces

  • Brick Special 1 x 2 with Pin Black Part 2458 Element 6116990 or 245826 ×1
  • Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom Blue Part 11215 Element 6033353 ×1
  • Bracket 3 x 2 x 1 1/3 with Pin Bottom Dark Blue Part 18671 Element 6132157 ×1
  • Brick Special 1 x 2 with Studs on 2 Sides Light Bluish Gray Part 52107 Element 4657459 ×1

Bricks Wedged 3 pieces

  • Brick Wedged, Sloped 4 x 4 Pointed Dark Blue Part 22391 Element 6129858 ×2
  • Brick Wedged, Sloped 4 x 4 Pointed Flat Silver Part 22391 Element 6129453 ×1

Transportation - Land 3 pieces

  • Handlebars Dark Bluish Gray Part 30031 Element 4261908 or 4210644 ×1
  • Spoiler 2 x 4 with Handle [Plain] Dark Bluish Gray Part 98834 Element 6124820 ×2

Plates Wedged 2 pieces

  • Wedge Plate 3 x 2 Left Blue Part 43723 Element 4498156 or 4280150 ×1
  • Wedge Plate 3 x 2 Right Blue Part 43722 Element 4498155 or 4280149 ×1

Technic Beams Special 2 pieces

  • Technic Rotation Joint Disk with Pin Hole and 3L Beam Thick Dark Bluish Gray Part 44224 Element 4182751 ×1
  • Technic Rotation Joint Disk with Pin and 3L Beam Thick Light Bluish Gray Part 44225 Element 6671155 or 6332151 ×1

Technic Panels 2 pieces

  • Technic Engine Block Half / Side Intake Panel Dark Blue Part 61069 Element 6127030 ×2

Technic Special 2 pieces

  • Technic Disc 3 x 3 Light Bluish Gray Part 2723 Element 4667578 ×2

Technic Steering, Suspension and Engine 2 pieces

  • Technic Engine Crankshaft Light Bluish Gray Part 2853 Element 6640384 or 4211609 ×2

Tiles Round and Curved 2 pieces

  • Tile Round 1 x 1 Blue Part 98138 Element 6284575 or 6009460 1 spare in the box ×2

Bricks 1 piece

  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×1

Panels 1 piece

  • Panel 1 x 2 x 1 [Rounded Corners] Trans-Neon Orange Part 4865b Element 6246895 or 6127431 ×1

Stickers 1 piece

  • Sticker Sheet for Set 70312-1 [No Color/Any Color] Part 24450 Element 6132766 or 6132765 ×1

Technic Gears 1 piece

  • Technic Driving Ring Extension, 4 Ridges Flat Silver Part 32187 Element 6123838 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 5 x 2 x 1 2/3 Trans-Neon Orange Part 6070 Element 6252517 or 6120916 ×1

Minifigures 3 figures

  • Flame Thrower Minifigure, checked as a whole figure ×1
  • Lance Richmond with Flat Silver Visor and Armor Minifigure, checked as a whole figure ×1
  • Lance Bot with Silver Helmet Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

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LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

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Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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