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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.

Blue Eagle vs. Snow Crawler

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4745 Blue Eagle vs. Snow Crawler

249 pieces in 121 part and color combinations, plus 2 minifigures.

LEGO counts 258 pieces. This inventory comes from a separate parts catalog and lists 257, 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

Black 95 pieces

  • Aircraft Fuselage Curved 10 x 4 x 2 Black Part 47846 Element 4221240 ×1
  • Bar 4L (Lightsaber Blade / Wand) Black Part 30374 Element 6116604 or 4140303 ×1
  • Brick 1 x 2 Black Part 3004 Element 300426 ×2
  • Brick 1 x 3 Black Part 3622 Element 362226 ×2
  • Brick 1 x 4 Black Part 3010 Element 301026 ×1
  • Brick 2 x 3 Black Part 3002 Element 300226 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Black Part 6091 Element 6383142 or 6184784 ×4
  • Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Black Part 3747b Element 4500458 or 374726 ×2
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Black Part 4287a ×2
  • Brick Wedged, Curved 4 x 4 No Top Studs Black Part 47753 Element 4219107 ×1
  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges Black Part 41748 Element 4160130 ×1
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges Black Part 41747 Element 4160108 ×1
  • Brick Wedged, Sloped 4 x 2 Triple Left Black Part 43710 Element 6040297 or 4180413 ×1
  • Brick Wedged, Sloped 4 x 2 Triple Right Black Part 43711 Element 6040298 or 4180423 ×1
  • Brick Wedged, Sloped Inverted 6 x 4 with 2 Stud Connections Black Part 4856a Element 4585334 or 4226506 ×3
  • Engine Smooth Large [2 x 2 Thin Top Plate] Black Part 4868b Element 6146461 or 4552413 ×2
  • Hinge 1 x 3 Triangle with Two Pins, 1 Locking Finger, Round Pin Holes Black Part 47973 Element 4218942 ×1
  • Hinge Brick 1 x 6 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Black Part 30388 Element 4226509 or 3038826 ×2
  • Hinge Brick 2 x 2 Locking with 2 Fingers Vertical and Axle Hole, 9 Teeth Black Part 40902 Element 4162235 ×5
  • Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Black Part 30553 Element 4143372 ×1
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Black Part 41532 Element 4159335 ×4
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Black Part 73983 Element 6102782 or 74011 ×2
  • Large Figure Weapon, Claw, Climbing Claw / Kodan Ball Half (Toa Nuva) Black Part 44036 Element 4224500 ×1
  • Large Figure Weapon, Claw, Triple, with Axle Black Part 32506 Element 4158029 or 4143549 ×1
  • Plate 1 x 3 Black Part 3623 Element 362326 ×5
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×4
  • Plate 2 x 3 Black Part 3021 Element 302126 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 Also in Dark Blue ×1
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×2
  • Support Leg Small [Insectoids] Black Part 30211 Element 4119218 ×6
  • Support Round 2 x 2 x 2 Stand with Reach-Through Center Hole Black Part 3940b Element 394026 ×2
  • Technic Axle 10 Black Part 3737 Element 373726 ×1
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×3
  • Technic Axle 4 Black Part 3705 Element 370526 ×2
  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×2
  • Technic Axle and Pin Connector Angled #5 - 112.5° Black Part 32015 Element 6271346 or 4107084 ×1
  • Technic Brick 1 x 1 with Pin Hole Black Part 6541 Element 654126 ×6
  • Technic Brick 1 x 10 [9 Pin Holes] Black Part 2730 Element 273026 ×2
  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×2
  • Technic Brick 4 x 4 with 2 x 2 Opening Black Part 32324 Element 6222427 or 4226981 ×1
  • Technic Slope Long 1 x 6 with 3 Pin Holes Black Part 2744 Element 6311889 or 274426 ×2
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×2
  • Windscreen 8 x 6 x 2 Curved with Alpha Team Snow Crawl Print Black Part 41751pr0008 Element 4225431 ×1

Light Bluish Gray 43 pieces

  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×1
  • Brick 2 x 6 Light Bluish Gray Part 2456 Element 4274668 or 4211795 ×1
  • Brick Special 1 x 2 with Handle Light Bluish Gray Part 30236 Element 4211580 ×1
  • Engine Centre - Smooth Large Light Bluish Gray Part 4869 Element 4211825 ×2
  • Hinge Brick 1 x 2 Locking with 1 Finger Vertical End Light Bluish Gray Part 30364 Element 4211693 ×4
  • Panel 1 x 2 x 1 [Square Corners] Light Bluish Gray Part 4865a Element 4211515 ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×1
  • Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 2 spares in the box ×12
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Bluish Gray Part 2654 Element 4278273 or 4276273 ×3
  • Plate Special 2 x 2 with Pin on Bottom Light Bluish Gray Part 2476a Element 6276848 or 4237084 ×4
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Light Bluish Gray Part 6553 Element 4211536 ×1
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×1
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×1
  • Technic Axle Connector with Axle Hole Light Bluish Gray Part 32039 Element 4211553 ×1
  • Technic Axle Towball Light Bluish Gray Part 2736 Element 6443149 or 4211375 ×1
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Bluish Gray Part 32123a 2 spares in the box ×4
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×2
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×1

Dark Blue 21 pieces

  • Plate 1 x 2 Dark Blue Part 3023 Element 6554191 or 4528981 ×4
  • Plate 1 x 4 Dark Blue Part 3710 Element 4502089 or 4177739 ×8
  • Plate 1 x 6 Dark Blue Part 3666 Element 4508313 or 4177734 ×2
  • Plate 2 x 4 Dark Blue Part 3020 Element 6554194 or 4667595 Also in Black ×2
  • Tile 1 x 4 with Groove Dark Blue Part 2431 Element 6103985 or 4568393 ×1
  • Wedge Plate 4 x 4 Cut Corner Dark Blue Part 30503 Element 6554237 or 6526570 ×2
  • Wedge Plate 6 x 12 Left Dark Blue Part 30355 Element 6535640 or 6236569 ×1
  • Wedge Plate 6 x 12 Right Dark Blue Part 30356 Element 6236570 or 4529016 ×1

White 20 pieces

  • Brick Curved 6 x 1 White Part 42022 Element 4160387 ×2
  • Minifig Head (No Face), Alpha Team Arctic Red, Blue, Yellow Ogel Orb Print [Blocked Open Stud] White Part 3626bpr0094 Element 4225962 ×1
  • Rubber Belt Small [15mm ID] [Round Cross Section] White Part 85543 Element 6699001 or 4580665 ×1
  • Technic Axle and Pin Connector Angled #1 White Part 32013 Element 6332573 or 4118981 ×1
  • Technic Axle and Pin Connector Perpendicular White Part 6536 Element 6261372 or 4173670 ×1
  • Technic Beam 1 x 4 Thin White Part 32449 Element 6360072 or 4144138 ×2
  • Technic Pin 1/2 without Friction Ridges White Part 4274 Element 6552190 or 6388018 1 spare in the box ×2
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×2
  • Tile Special 1 x 1 with Clip and Straight Tips White Part 2555 Element 255501 ×4
  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×4

Dark Bluish Gray 19 pieces

  • Hinge Brick 1 x 2 Base Dark Bluish Gray Part 3937 Element 4211066 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Dark Bluish Gray Part 44567a Element 4210892 ×1
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Dark Bluish Gray Part 44302a Element 4210884 ×4
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×5
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Dark Bluish Gray Part 2654 Element 4613980 or 4278274 ×3
  • Plate Special 3 x 2 with Rounded End, Hole Dark Bluish Gray Part 3176 Element 4225733 ×2
  • Tile 1 x 2 with Alpha Team Ogel Skull & 3 Buttons Print Dark Bluish Gray Part 3069bpr0071 Element 4225457 ×1
  • Tile 2 x 2 with Alpha Team Arctic Blue Rectangle Grid Display Print Dark Bluish Gray Part 3068bpr0108 Element 4514441 or 4225456 ×1
  • Tile 2 x 2 with Alpha Team Arctic Oval Display Print Dark Bluish Gray Part 3068bpr0116 Element 4225455 ×1

Dark Red 15 pieces

  • Brick 1 x 8 Dark Red Part 3008 Element 4224519 ×2
  • Brick Sloped 45° 2 x 2 Dark Red Part 3039 Element 4609925 or 4162216 ×1
  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges Dark Red Part 41748 Element 6251599 or 4163459 ×1
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges Dark Red Part 41747 Element 6251602 or 4163457 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Dark Red Part 44301a Element 4224499 ×2
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Dark Red Part 73983 Element 4224503 ×2
  • Plate 1 x 1 Dark Red Part 3024 Element 4539114 or 4183901 1 spare in the box ×2
  • Plate 4 x 4 Dark Red Part 3031 Element 6134368 or 4613268 ×1
  • Tile Special 1 x 2 with Handle Dark Red Part 2432 Element 6484390 or 4163461 ×1
  • Windscreen 9 x 3 x 1 2/3 Bubble Canopy Dark Red Part 47844 Element 4224506 ×2

Sand Blue 10 pieces

  • Brick Sloped 33° 3 x 3 Double Convex Sand Blue Part 3675 Element 4224489 ×2
  • Brick Wedged, Curved 12 x 3 Left with Alpha Team Arctic Wraparound Print Sand Blue Part 42061pr0007 Element 4224280 ×1
  • Brick Wedged, Curved 12 x 3 Right with Alpha Team Arctic Wraparound Print Sand Blue Part 42060pr0007 Element 4224278 ×1
  • Large Figure Weapon Blade, Ice Skate / Ice Blade Half Sand Blue Part 44032 Element 4224494 ×2
  • Plate 1 x 4 Sand Blue Part 3710 Element 6111685 or 4169412 ×1
  • Plate 2 x 4 Sand Blue Part 3020 Element 6248957 or 6052827 ×1
  • Tile 2 x 2 with Alpha Team Arctic Lightning Logo Print Sand Blue Part 3068bpr0115 Element 4225429 ×1
  • Windscreen 10 x 4 x 2 Curved with Bubble Cutout and Single Hinge Finger Sand Blue Part 47843 Element 4254938 ×1

Trans-Medium Blue 9 pieces

  • Dish 2 x 2 Inverted [Radar] Trans-Medium Blue Part 4740 Element 4216334 ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Trans-Medium Blue Part 2654 Element 6001231 or 4278407 ×1
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Trans-Medium Blue Part 41669 Element 6174477 or 4163578 ×6

Blue 8 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×6
  • Tile Special 1 x 2 Grille with Bottom Groove Blue Part 2412b Element 241223 ×2

Trans-Orange 4 pieces

  • Antenna 1 x 4 with Rounded Top Trans-Orange Part 3957a Element 4221167 ×2
  • Antenna 8H Whip Trans-Orange Part 2569 Element 6288215 or 6262202 1 spare in the box ×2

Trans-Clear 2 pieces

  • Equipment Crystal Ball Globe 2 x 2 x 2 Trans-Clear Part 30106 Element 6507889 or 6274736 ×1
  • Windscreen 9 x 3 x 1 2/3 Bubble Canopy with Red Square and Verniers Print Trans-Clear Part 47844pr0002 Element 4224283 ×1

Tan 1 piece

  • Hinge Brick 1 x 2 Top Plate Thin Tan Part 3938 Element 4519979 or 4124464 ×1

Trans-Dark Blue 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Dark Blue Part 6141 Element 6514055 or 6240214 1 spare in the box ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 4745-1 [No Color/Any Color] Part 50191 Element 4226573 ×1

Minifigures 2 figures

  • Ogel Minion with Bubble Helmet Minifigure, checked as a whole figure ×1
  • Dash (Alpha Team) 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.