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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.

Blizzard Blaster

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4770 Blizzard Blaster

297 pieces in 97 part and color combinations, plus 2 minifigures.

LEGO counts 303 pieces. This inventory comes from a separate parts catalog and lists 305, including the 8 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Technic Pins 43 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×17
  • Technic Rotation Joint Ball Loop with Two Perpendicular Pins with Friction Black Part 47455 Element 4272426 or 4213374 ×10
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×14
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×2

Plates 41 pieces

  • Plate 2 x 10 Black Part 3832 Element 383226 ×3
  • Plate 2 x 4 Black Part 3020 Element 302026 Also in Dark Blue ×4
  • Plate 1 x 2 Dark Blue Part 3023 Element 6554191 or 4528981 ×8
  • Plate 2 x 4 Dark Blue Part 3020 Element 6554194 or 4667595 Also in Black ×2
  • Plate 1 x 3 Dark Red Part 3623 Element 4539076 or 4164223 ×1
  • Plate 2 x 4 Dark Red Part 3020 Element 4539071 or 4528320 ×2
  • Plate 1 x 3 Sand Blue Part 3623 Element 6142245 or 4153606 ×2
  • Plate 2 x 4 Sand Blue Part 3020 Element 6248957 or 6052827 ×4
  • Plate 2 x 6 Sand Blue Part 3795 Element 6550568 or 4153430 ×2
  • Plate 4 x 10 Sand Blue Part 3030 Element 6644898 or 4262234 ×4
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×5
  • Plate 4 x 10 White Part 3030 Element 6550137 or 4503008 ×4

Bricks Sloped 26 pieces

  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Black Part 3747b Element 4500458 or 374726 ×1
  • Brick Sloped 45° 2 x 2 Dark Blue Part 3039 Element 4153653 ×2
  • Brick Sloped 45° 2 x 3 Dark Blue Part 3038 Element 4568711 or 4261779 ×8
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Blue Part 3660 Element 6025375 or 4590785 ×2
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Dark Blue Part 4871 Element 6475225 or 4261784 ×2
  • Brick Sloped 45° 2 x 2 Dark Red Part 3039 Element 4609925 or 4162216 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Sand Blue Part 3040b Element 6212055 or 4168633 ×2
  • Brick Sloped 45° 2 x 2 Sand Blue Part 3039 Element 4215337 ×4
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Sand Blue Part 4287b Element 4182478 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Trans-Orange Part 3040b Element 6507935 or 6219825 ×2

Technic Special 24 pieces

  • Technic Link 1 x 5 Black Part 30397 Element 4140701 ×4
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Horizontal Top] Dark Blue Part 48170 Element 4261790 ×2
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Vertical Side] Sand Blue Part 48171 Element 4261667 ×8
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Socket Sand Blue Part 48169 Element 4261665 ×10

Technic Bricks 20 pieces

  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Black Part 32064b Also in Dark Blue ×3
  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×4
  • Technic Brick 1 x 16 [15 Pin Holes] Dark Blue Part 3703 Element 4261782 ×2
  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Dark Blue Part 32064b Also in Black ×6
  • Technic Brick 1 x 6 [5 Pin Holes] Dark Blue Part 3894 Element 4261930 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] White Part 32000 Element 6564911 or 3200001 ×2
  • Technic Brick 1 x 4 [3 Pin Holes] White Part 3701 Element 6601913 or 370101 ×1

Bricks 18 pieces

  • Brick 1 x 8 Dark Blue Part 3008 Element 6277303 or 4649970 ×2
  • Brick 1 x 2 Sand Blue Part 3004 Element 6177142 or 4153374 ×4
  • Brick 1 x 4 Sand Blue Part 3010 Element 4620993 or 4187074 ×1
  • Brick 1 x 6 Sand Blue Part 3009 Element 4620992 or 4216936 ×4
  • Brick 2 x 2 Sand Blue Part 3003 Element 6506825 or 4196738 ×3
  • Brick 2 x 4 Sand Blue Part 3001 Element 6406007 or 6224211 ×2
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×2

Plates Round Curved and Dishes 18 pieces

  • Plate Round Corner 3 x 3 Sand Blue Part 30357 Element 4196735 ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Trans-Clear Part 2654 Element 6581772 or 6163901 ×14
  • Plate Round 1 x 1 with Solid Stud Trans-Medium Blue Part 6141 Element 6240213 or 6152279 1 spare in the box ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Trans-Medium Blue Part 2654 Element 6001231 or 4278407 ×1

Bricks Curved 14 pieces

  • Brick Curved 6 x 2 Dark Blue Part 44126 Element 4500610 or 4261772 ×2
  • Brick Curved Inverted 6 x 1 Dark Blue Part 42023 Element 6102695 or 4590784 ×10
  • Brick Curved 6 x 1 Sand Blue Part 42022 Element 6210554 or 4220010 ×2

Bricks Wedged 14 pieces

  • Brick Wedged, Curved 2 x 3 x 2/3 Two Studs, Wing End Dark Blue Part 47456 Element 6062104 or 4218675 ×2
  • Brick Wedged, Curved 6 x 4 Triple Dark Blue Part 43712 Element 6621863 or 6598992 ×2
  • Brick Wedged, Curved Inverted 6 x 4 Dark Blue Part 43713 Element 6109925 or 4261774 ×2
  • Brick Wedged, Curved 12 x 3 Left Sand Blue Part 42061 Element 4220014 ×1
  • Brick Wedged, Curved 12 x 3 Right Sand Blue Part 42060 Element 4220015 ×1
  • Brick Wedged, Curved 6 x 4 Triple Sand Blue Part 43712 Element 6167210 or 4261775 ×2
  • Brick Wedged, Sloped 45° 4 x 2 Left Sand Blue Part 43721 Element 4261787 ×2
  • Brick Wedged, Sloped 45° 4 x 2 Right Sand Blue Part 43720 Element 4261786 ×2

Tiles Special 14 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Red Part 2412b Element 4541506 or 4528969 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Trans-Orange Part 2412b Element 30244182 or 6097654 ×2
  • Tile Special 1 x 1 with Clip and Straight Tips White Part 2555 Element 255501 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 1 spare in the box ×7

Bars, Ladders and Fences 10 pieces

  • Bar 1 x 8 with Brick 1 x 2 Curved Top End (Axle Holder Inside Small End) Dark Blue Part 30359b Element 4261781 ×4
  • Antenna 8H Whip Trans-Orange Part 2569 Element 6288215 or 6262202 ×2
  • Bar 1 x 8 with Brick 1 x 2 Curved Top End (Axle Holder Inside Small End) Trans-Orange Part 30359b Element 4261664 ×4

Plates Special 10 pieces

  • Plate Special 2 x 2 with 2 Pin Holes Black Part 2817 Element 281726 ×1
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Dark Red Part 3839b Element 4165435 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] White Part 2540 Element 4140583 or 254051 ×8

Tiles 9 pieces

  • Tile 1 x 2 with Groove Dark Blue Part 3069b Element 6554190 or 4528488 ×4
  • Tile 1 x 4 with Groove Dark Blue Part 2431 Element 6103985 or 4568393 ×2
  • Tile 1 x 2 with Groove Trans-Dark Blue Part 3069b Element 6514219 or 6251289 ×1
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×2

Plates Wedged 6 pieces

  • Wedge Plate 8 x 3, 22° Left Sand Blue Part 50305 Element 4261789 ×1
  • Wedge Plate 8 x 3, 22° Right Sand Blue Part 50304 Element 4261788 ×1
  • Wedge Plate 4 x 2 Left White Part 41770 Element 6552119 or 4161326 ×2
  • Wedge Plate 4 x 2 Right White Part 41769 Element 6552118 or 4160857 ×2

Flags, Banners and Signs 4 pieces

  • Flag 2 x 2 Trapezoid with Flat Area between Clips Dark Blue Part 44676 Element 4529551 or 4261792 ×4

Technic Beams 4 pieces

  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 ×2
  • Technic Beam 1 x 5 Thick White Part 32316 Element 4249021 or 4140465 ×2

Technic Connectors 4 pieces

  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×4

Large Buildable Figures 3 pieces

  • Large Figure Weapon, Claw, Triple, with Axle Black Part 32506 Element 4158029 or 4143549 ×2
  • Large Figure Weapon, Claw, Climbing Claw / Kodan Ball Half (Toa Nuva) Dark Red Part 44036 Element 4260695 ×1

Windscreens and Fuselage 3 pieces

  • Aircraft Fuselage Curved 10 x 4 x 2 Dark Blue Part 47846 Element 4261933 ×1
  • Windscreen 10 x 4 x 2 Curved with Bubble Cutout and Single Hinge Finger Sand Blue Part 47843 Element 4254938 ×1
  • Windscreen 9 x 3 x 1 2/3 Bubble Canopy with Red Square and Verniers Print Trans-Clear Part 47844pr0002 Element 4224283 ×1

Bricks Round and Cones 2 pieces

  • Brick Round Corner 4 x 4 Full Brick Dark Blue Part 2577 Element 4261771 ×2

Hinges, Arms and Turntables 2 pieces

  • Hinge Brick 2 x 2 Top Plate Thin Black Part 6134 Element 4124096 or 613426 ×1
  • Hinge Brick 1 x 2 Base Light Bluish Gray Part 3937 Element 4211469 ×1

Projectiles / Launchers 2 pieces

  • Projectile, Technic Competition Arrow, Beam Shaft with Solid Dark Blue Rubber End Black Part 76110c03 Element 4262398 ×1
  • Launcher, Technic Competition Cannon, Round Bottom with Same Color Ends White Part 32074c01 Element 4262394 ×1

Transportation - Sea and Air 2 pieces

  • Engine - Smooth, Small 1 x 2 Side Plate [With Axle Holders] Dark Blue Part 3475b Element 4261780 ×2

Minifig Accessories 1 piece

  • Equipment Crystal Ball Globe 2 x 2 x 2 Trans-Clear Part 30106 Element 6507889 or 6274736 ×1

Minifig Heads 1 piece

  • Minifig Head (No Face), Alpha Team Arctic Red, Blue, Yellow Ogel Orb Print [Blocked Open Stud] White Part 3626bpr0094 Element 4225962 ×1

Stickers 1 piece

  • Sticker Sheet for Set 4770-1 [No Color/Any Color] Part 52887 Element 4262441 ×1

Transportation - Land 1 piece

  • Seat / Chair 2 x 2 White Part 4079 ×1

Minifigures 2 figures

  • Zed Minifigure, checked as a whole figure ×1
  • Ogel Minion with Bubble 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

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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