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LEGO Missing Piece Checker

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.

Recon-Mech RP

Checking

7314 Recon-Mech RP

184 pieces in 69 part and color combinations, plus 1 minifigure.

LEGO counts 194 pieces. This inventory comes from a separate parts catalog and lists 189, including the 5 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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

Plates 44 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 1 x 4 Dark Gray Part 3710 Element 371027 ×7
  • Plate 2 x 3 Dark Gray Part 3021 Element 4108041 or 302127 ×6
  • Plate 4 x 4 Dark Gray Part 3031 Element 4243823 or 4113911 ×1
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×12
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 1 spare in the box ×8
  • Plate 2 x 2 Corner Red Part 2420 Element 242071 or 242021 ×6
  • Plate 2 x 4 Red Part 3020 Element 302021 ×1
  • Plate 4 x 4 Red Part 3031 Element 4243814 or 303121 ×2

Hinges, Arms and Turntables 33 pieces

  • Arm Grabber Angled Black Part 30542 Element 4143242 ×2
  • Hinge Brick 1 x 2 Locking with 1 Finger Vertical End Black Part 30364 Element 6266306 or 4265484 ×2
  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×1
  • Hinge Brick 1 x 2 Base Dark Gray Part 3937 Element 4112234 or 393727 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Dark Gray Part 30383 Element 4144572 or 4124434 ×6
  • Hinge Brick 1 x 2 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Light Gray Part 30386 Element 4143133 ×1
  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 9 Teeth Light Gray Part 30365 Element 4144500 or 4124100 ×5
  • Hinge Brick 1 x 4 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Light Gray Part 30387 Element 4144571 or 4142993 ×2
  • Hinge Brick 1 x 6 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Light Gray Part 30388 Element 4144578 ×4
  • Hinge 1 x 2 Locking with 2 Fingers and Towball Socket, 9 Teeth Red Part 30396 Element 4144565 or 4140703 ×1
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Red Part 73983 Element 6102786 or 74230 ×8

Bricks Sloped 21 pieces

  • Brick Sloped Inverted 45° 6 x 4 Double with Recessed Center Light Gray Part 30183 Element 4116843 ×1
  • Brick Sloped 33° 3 x 2 Red Part 3298 Element 329821 ×2
  • Brick Sloped 33° 3 x 2 with Red/Gray Machinery Parts Print Red Part 3298pr0051 Element 4143028 ×2
  • Brick Sloped 45° 2 x 2 Red Part 3039 Element 303921 ×12
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Red Part 4871 Element 487121 ×2
  • Brick Sloped 45° 2 x 4 Sand Red Part 3037 Element 4143123 ×2

Plates Special 15 pieces

  • Plate Special 6 x 6 x 2/3 Cross with Dome Dark Gray Part 30303 Element 4120146 ×2
  • Plate Special 1 x 2 with Ladder Light Gray Part 4175 Element 4100526 or 417502 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Red Part 4085c Element 408521 ×2
  • Technic Plate 2 x 6 [5 Holes] Red Part 32001 Element 4582843 or 3200121 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Sand Red Part 2540 Element 4143122 ×5
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Sand Red Part 3839b Element 4143124 ×3

Bricks 14 pieces

  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×1
  • Brick 2 x 2 Corner Black Part 2357 Element 235776 or 235726 ×4
  • Brick 1 x 1 Red Part 3005 Element 300521 ×1
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×4
  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×2
  • Brick 1 x 1 Trans-Dark Blue Part 3005 Element 6514215 or 6494117 ×2

Bricks Special 7 pieces

  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×2
  • Brick Special 1 x 2 with 2 Pins, Round Pin Holes Light Gray Part 30526 Element 4142868 ×2
  • Brick Special 1 x 2 with Vertical Clip [Thick U Clip] Light Gray Part 30237a Element 4117069 ×2
  • Brick Special 2 x 4, with 2 x 2 Brick with Top Pin and 1 x 2 Side Plates Light Gray Part 30592 Element 4143056 ×1

Plates Wedged 7 pieces

  • Wedge Plate 3 x 3 Cut Corner Red Part 2450 Element 245021 ×2
  • Wedge Plate 3 x 4 without Stud Notches Red Part 4859 ×1
  • Wedge Plate 3 x 4 without Stud Notches Sand Red Part 4859 ×4

Tiles Special 7 pieces

  • Tile Special 1 x 2 with Handle Light Gray Part 2432 Element 243202 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Sand Red Part 2412b Element 4143121 ×6

Plates Round Curved and Dishes 6 pieces

  • Dish 2 x 2 Inverted [Radar] Dark Gray Part 4740 Element 474027 ×2
  • Dish 4 x 4 Inverted [Radar] with Life On Mars Machinery Print Light Gray Part 3960pr9974 Element 4143033 ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Gray Part 2654 Element 265402 ×1
  • Dish 2 x 2 Inverted [Radar] Trans-Neon Green Part 4740 Element 6245297 or 4112517 ×2

Technic Bricks 6 pieces

  • Technic Brick 1 x 1 with Pin Hole Light Gray Part 6541 Element 654102 ×3
  • Technic Brick 1 x 2 [2 Pin Holes] Sand Red Part 32000 Element 4143134 ×3

Tiles Round and Curved 6 pieces

  • Tile Round 2 x 2 with Flame and Sand Red Border Print Light Gray Part 4150pr0041 Element 4142973 ×2
  • Tile Round 2 x 2 with Podracer Vent Print Light Gray Part 4150pr0023 Element 4124411 ×2
  • Tile Round 2 x 2 with Bottom Cross Sand Red Part 4150 Element 4143126 ×2

Bricks Round and Cones 5 pieces

  • Cylinder Half 2 x 4 x 4 Sand Red Part 6259 Element 4143130 ×2
  • Cone 1 x 1 [No Top Groove] Trans-Neon Green Part 4589 Element 618849 or 458949 ×3

Bars, Ladders and Fences 2 pieces

  • Bar 6.6L with Stop Ring [Umbrella Stand] Red Part 4095 Element 4143125 or 409571 ×2

Minifig Accessories 2 pieces

  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Light Gray Part 4349 Element 434902 ×1
  • Equipment Space Scanner Trans-Neon Green Part 30035 Element 4143131 ×1

Tubes and Hoses 2 pieces

  • Flexible Ribbed Hose 8mm Ends 12L with Tabbed Black Ends Light Gray Part 758c03 Element 4143057 ×2

Bricks Wedged 1 piece

  • Brick Wedged, Sloped Inverted 6 x 4 with 2 Stud Connections Light Gray Part 4856a Element 4143128 or 4109698 ×1

Energy Effects 1 piece

  • Wave / Flame Rounded with Base Pegs Trans-Neon Orange Part 6126a ×1

String, Bands and Reels 1 piece

  • Rubber Band 15mm [Square Cross Section] Yellow Part 23229 Element 4125669 or 4124335 6 spares in the box ×1

Technic Axles 1 piece

  • Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×1

Technic Connectors 1 piece

  • Technic Pin Connector Round [No Slot] Red Part 75535 Element 75854 ×1

Tiles 1 piece

  • Tile 1 x 2 with Elliptical Display Print Dark Gray Part 3069bpr0046 Element 4142971 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 8 x 4 x 2 Curved Taper with Locking Dual 2 Fingers Trans-Brown Part 30536 Element 4215614 or 4143049 ×1

Minifigures 1 figure

  • Martian, Antares Minifigure, checked as a whole figure ×1

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

When a piece really is missing

Ask LEGO

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.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

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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