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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.

Mobile Rocket Transport

Checking

6950 Mobile Rocket Transport

200 pieces in 73 part and color combinations, plus 2 minifigures.

The piece count includes the 10 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

Plates 30 pieces

  • Plate 2 x 10 Blue Part 3832 Element 383223 ×1
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×3
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×3
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×4
  • Plate 6 x 14 Blue Part 3456 Element 345623 ×1
  • Plate 1 x 3 Light Gray Part 3623 Element 362302 ×2
  • Plate 1 x 4 Light Gray Part 3710 Element 371002 ×4
  • Plate 1 x 6 Light Gray Part 3666 Element 366602 ×1
  • Plate 2 x 4 Light Gray Part 3020 Element 302002 ×1
  • Plate 2 x 6 Light Gray Part 3795 Element 379502 ×5
  • Plate 4 x 6 Light Gray Part 3032 Element 303202 ×1
  • Plate 1 x 1 Trans-Green Part 3024 Element 6513967 or 6252046 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×2

Bricks Round and Cones 18 pieces

  • Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×6
  • Cone 4 x 4 x 2, Axle Hole [Plain] Black Part 3943b Element 4143243 or 394326 ×2
  • Cone 4 x 4 x 2, Axle Hole [Plain] Light Gray Part 3943b Element 394302 ×1
  • Brick Round 1 x 1 Open Stud Trans-Red Part 3062b Element 6514235 or 6238673 ×3
  • Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 ×4
  • Cone 2 x 2 x 2, Open Stud White Part 3942c Element 6044601 or 6022158 ×1
  • Cone 4 x 4 x 2, Axle Hole [Plain] White Part 3943b Element 6108662 or 4288051 ×1

Bricks Sloped 17 pieces

  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Blue Part 3747a Element 4500460 or 374723 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Small Stud Holes] Blue Part 3660b ×7
  • Brick Sloped 33° 3 x 1 Light Gray Part 4286 Element 428602 ×4
  • Brick Sloped 45° 2 x 2 with Computer Panel Print Light Gray Part 3039pr9994 ×1
  • Brick Sloped 45° 2 x 2 with Computer Screen Print Light Gray Part 3039pr0026 ×1
  • Brick Sloped 33° 3 x 6 Trans-Yellow Part 3939 ×1
  • Brick Sloped Inverted 33° 5 x 6 x 2 Trans-Yellow Part 4228 ×1

Bricks 16 pieces

  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×4
  • Brick 1 x 6 with Bottom Tubes and 2 Lowered Cross Supports Blue Part 3009b ×2
  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×1
  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×2
  • Brick 1 x 1 Light Gray Part 3005 Element 300502 ×2
  • Brick 1 x 4 with Black 15 Bars Grill Print Light Gray Part 3010apr0004 ×3
  • Brick 1 x 6 with No Bottom Tubes Trans-Yellow Part 3067 ×2

Hinges, Arms and Turntables 16 pieces

  • Turntable 4 x 4 Square Base Black Part 3403 Element 340326 ×1
  • Turntable 4 x 4 Top Black Part 3404 Element 4221659 or 340426 ×1
  • Hinge Brick 1 x 2 Base Light Gray Part 3937 Element 393702 ×4
  • Hinge Brick 1 x 2 Top Plate Thin Light Gray Part 3938 Element 393802 ×4
  • Hinge Plate 2 x 9 with Hole Close to Hinge [Complete Assembly] Light Gray Part 3324ac01 Element 4106906 ×2
  • Hinge Plate 1 x 2 with 2 Fingers and Solid Studs Yellow Part 4276a ×2
  • Hinge Plate 1 x 2 with 3 Fingers [Solid Studs] Yellow Part 4275a ×2

Plates Special 16 pieces

  • Plate Special 1 x 2 with Ladder Black Part 4175 Element 6285241 or 6179557 ×2
  • Bracket 2 x 2 - 2 x 2 Light Gray Part 3956 Element 395602 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thin Ring] Light Gray Part 4081a ×2
  • Plate Special 1 x 1 with Clip Vertical [Thin Open O Clip] Light Gray Part 4085a ×2
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Light Gray Part 3839b Element 383902 ×2
  • Plate Special 1 x 2 with Ladder Light Gray Part 4175 Element 4100526 or 417502 ×2
  • Bracket 2 x 2 - 2 x 2 White Part 3956 Element 6313593 or 395601 ×4

Wheels and Tyres 16 pieces

  • Tyre 43 x 17 Black Part 3634 Element 4523564 or 363426 ×8
  • Wheel with Split Axle hole Black Part 3482 Element 4279396 or 4199226 ×8

Plates Round Curved and Dishes 12 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×7
  • Dish 6 x 6 Inverted, Radar / Webbed [No Anti-studs] Light Gray Part 4285a ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×4

Technic Pins 12 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Black Part 3749 Element 374926 ×8
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×4

Technic Bricks 8 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Blue Part 3700 Element 370023 ×4
  • Technic Brick 1 x 8 [7 Pin Holes] Blue Part 3702 Element 370223 ×4

Bars, Ladders and Fences 7 pieces

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×3
  • Bar 1 x 4 x 2 with Studs Light Gray Part 4083 Element 408302 ×4

Tiles 7 pieces

  • Tile 1 x 2 with Groove Light Gray Part 3069b Element 306902 ×1
  • Tile 2 x 2 with Groove Light Gray Part 3068b Element 306802 ×6

Transportation - Sea and Air 6 pieces

  • Engine, Strakes, 2 x 2 Thin Top Plate Black Part 4229 Element 4552040 or 4163480 ×4
  • Brick Special 1 x 1 with 3 Speakers / Loudspeakers / Space Positioning Rockets Light Gray Part 3963 Element 396302 ×2

Transportation - Land 5 pieces

  • Steering Stand 1 x 2 with Black Steering Wheel Light Gray Part 3829c01 Element 9556 ×5

Plates Wedged 4 pieces

  • Wedge Plate 8 x 4 Wing Right without Stud Notch Light Gray Part 3934a ×2
  • Wedge, Plate 8 x 4 Wing Left without Underside Stud Notch Light Gray Part 3933a ×2

Minifig Accessories 3 pieces

  • Equipment Camera with Side Sight [aka Space Gun] Black Part 4360 Element 436026 ×2
  • Equipment Radio [Compact Handle] Black Part 3962a ×1

Bricks Special 2 pieces

  • Brick Special 1 x 1 with Headlight Light Gray Part 4070 Element 407002 ×2

Minifig Shields, Weapons, & Tools 2 pieces

  • Weapon Gun / Torch (Space) [with Grooves] Black Part 3959 Element 4254942 or 395976 ×2

Technic Axles 2 pieces

  • Technic Axle 10 Black Part 3737 Element 373726 ×1
  • Technic Axle 4 Black Part 3705 Element 370526 ×1

Technic Bushes 1 piece

  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 ×1

Minifigures 2 figures

  • Classic Spaceman, Yellow with Airtanks (3842b Helmet) Minifigure, checked as a whole figure ×2

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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