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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.

Sea Riders

Checking

4402 Sea Riders

549 pieces in 165 part and color combinations.

LEGO counts 547 pieces. This inventory comes from a separate parts catalog and lists 549; 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

Blue 180 pieces

  • Brick 1 x 10 Blue Part 6111 Element 6057905 or 4497172 ×2
  • Brick 1 x 12 Blue Part 6112 Element 6305460 or 6175821 ×2
  • Brick 1 x 16 Blue Part 2465 Element 6432006 or 246523 ×4
  • Brick 1 x 3 Blue Part 3622 Element 362223 ×10
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×10
  • Brick 1 x 6 Blue Part 3009 Element 300923 ×8
  • Brick 1 x 8 Blue Part 3008 Element 300823 ×6
  • Brick 2 x 2 Corner Blue Part 2357 Element 4558606 or 4533323 ×4
  • Brick 2 x 6 Blue Part 2456 Element 4181139 or 245623 ×4
  • Brick 2 x 8 Blue Part 3007 Element 6037384 or 300723 ×1
  • Brick Curved 2 x 2 with Lip, No Studs Blue Part 30602 Element 4171849 ×4
  • Brick Curved 6 x 1 Blue Part 42022 Element 6543207 or 4160391 ×2
  • Brick Curved Inverted 6 x 1 Blue Part 42023 Element 6214160 or 6031140 ×2
  • Brick Sloped 33° 3 x 2 Blue Part 3298 Element 6294307 or 6141996 ×2
  • Brick Sloped 33° 3 x 4 Blue Part 3297 Element 6088711 or 329723 ×6
  • Brick Sloped 45° 2 x 1 with Bottom Pin Blue Part 3040b Element 4121936 or 304023 ×4
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Blue Part 4287a ×8
  • Brick Sloped Inverted 45° 2 x 1 Blue Part 3665 Element 366523 ×4
  • Brick Wedged, Curved 12 x 3 Left Blue Part 42061 Element 4626755 or 4297361 ×2
  • Brick Wedged, Curved 12 x 3 Right Blue Part 42060 Element 4626754 or 4297359 ×2
  • Hinge Plate 1 x 4 Locking Dual 1 Finger Blue Part 44568 Element 4527639 or 4193482 ×4
  • Hinge Plate 3 x 4 Locking Dual 2 Finger, 9 Teeth Blue Part 44570 Element 6128691 or 4194559 ×4
  • Plate 1 x 1 Blue Part 3024 Element 302423 ×6
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×3
  • Plate 1 x 3 Blue Part 3623 Element 362323 ×4
  • Plate 1 x 4 Blue Part 3710 Element 371023 ×2
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×2
  • Plate 1 x 8 Blue Part 3460 Element 346023 ×14
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×2
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×2
  • Plate 4 x 10 Blue Part 3030 Element 303073 or 303023 ×6
  • Plate 4 x 12 Blue Part 3029 Element 4528850 or 4166870 ×2
  • Plate 4 x 6 Blue Part 3032 Element 303223 ×2
  • Plate 4 x 8 Blue Part 3035 Element 303523 ×1
  • Plate 6 x 6 Blue Part 3958 Element 4199519 or 395823 ×6
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Blue Part 3794a ×4
  • Plate Special 3 x 2 with Rounded End, Hole Blue Part 3176 Element 317673 or 317623 ×2
  • Plate Special 4 x 6, Studs on 3 Edges Blue Part 6180 Element 4599985 or 4514397 ×4
  • Technic Brick 1 x 6 [5 Pin Holes] Blue Part 3894 Element 389423 ×3
  • Technic Pin Connector Round [No Slot] Blue Part 75535 Element 7553523 or 4143093 ×2
  • Tile 1 x 2 with Groove Blue Part 3069b Element 306923 ×4
  • Tile 1 x 6 with Groove Blue Part 6636 Element 4118785 or 4108153 ×2
  • Tile 1 x 8 with Groove Blue Part 4162 Element 416223 ×2
  • Tile 2 x 2 with Groove Blue Part 3068b Element 306823 ×2
  • Turntable 2 x 2 Plate, Base Blue Part 3680 Element 368023 ×2
  • 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
  • Wedge Plate 8 x 4 Wing Left Blue Part 3933 Element 4194239 or 393323 ×2
  • Wedge Plate 8 x 4 Wing Right with Stud Notch Blue Part 3934 Element 4194240 or 393423 ×2

Light Gray 103 pieces

  • Brick 2 x 4 Light Gray Part 3001 Element 4116259 or 300102 ×1
  • Brick 2 x 6 Light Gray Part 2456 Element 4271438 or 4259892 ×1
  • Brick Round 1 x 1 Open Stud Light Gray Part 3062b Element 306202 ×4
  • Brick Special 1 x 2 with Grille Light Gray Part 2877 Element 287702 ×4
  • Brick Special 1 x 4 with 4 Studs on One Side Light Gray Part 30414 Element 4141467 ×3
  • Flexible Hose 8.5L with Tabbed Ends (Ends same color as Tube) Light Gray Part 73590c02a Element 621132 ×4
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Light Gray Part 44301a Element 4183037 ×1
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Light Gray Part 44302a Element 4183049 ×1
  • Panel 1 x 2 x 2 [Hollow Studs] Light Gray Part 4864b Element 4113017 ×1
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×2
  • Plate 1 x 3 Light Gray Part 3623 Element 362302 ×2
  • Plate 1 x 8 Light Gray Part 3460 Element 346002 ×4
  • Plate 2 x 3 Light Gray Part 3021 Element 302102 ×2
  • Plate 2 x 8 Light Gray Part 3034 Element 303402 ×3
  • Plate Special 1 x 2 Side Handle [Free Ends] Light Gray Part 2540 Element 4140584 or 254052 ×3
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Gray Part 3794a Element 379402 ×2
  • Plate Special 2 x 2 with Grills Light Gray Part 41862 Element 4163545 ×4
  • Technic Axle 3 Light Gray Part 4519 Element 4186007 ×2
  • Technic Axle 5 Light Gray Part 32073 Element 4141482 ×1
  • Technic Axle Connector Ridged [with x Hole x Orientation] Light Gray Part 6538b Element 4113804 or 4100408 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] Light Gray Part 32000 Element 3200002 ×16
  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 1 spare in the box ×1
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Gray Part 32123a 1 spare in the box ×2
  • Technic Gear 8 Tooth Light Gray Part 3647 Element 364702 ×4
  • Technic Gear Rack 1 x 10 with Holes Light Gray Part 6592 Element 4189330 or 659202 ×1
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×2
  • Technic Universal Joint 4L [Complete Assembly] Light Gray Part 9244 Element 9244 ×4
  • Tile 1 x 2 with Groove Light Gray Part 3069b Element 306902 ×11
  • Tile Special 1 x 1 with Clip and Straight Tips Light Gray Part 2555 Element 255502 ×4
  • Tile Special 1 x 2 Grille with Bottom Groove Light Gray Part 2412b Element 241202 ×9
  • Turntable 2 x 2 Plate - Top Light Gray Part 3679 Element 367952 or 367902 ×2

Yellow 76 pieces

  • Brick 1 x 2 x 2 with Inside Axle Holder Yellow Part 3245b ×4
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×4
  • Brick 2 x 2 Corner Yellow Part 2357 Element 235774 or 235724 ×2
  • Brick 2 x 3 Yellow Part 3002 Element 300224 ×2
  • Brick Curved 6 x 1 Yellow Part 42022 Element 4160392 ×4
  • Brick Curved Inverted 6 x 1 Yellow Part 42023 Element 6175158 or 4160408 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Yellow Part 3040b Element 4121965 or 304024 ×2
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Yellow Part 3747b Element 4500459 or 374724 ×1
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Yellow Part 4287a ×2
  • Brick Sloped Inverted 45° 2 x 1 Yellow Part 3665 Element 366524 ×2
  • Cone 1 x 1 [No Top Groove] Yellow Part 4589 Element 458924 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Yellow Part 44302a Element 4183981 ×2
  • Hinge Tile 1 x 3 Locking with 1 Finger on Top Yellow Part 44300 Element 4183024 ×2
  • Lever Small Base with Black Lever Yellow Part 298c02 Element 74156 1 spare in the box ×2
  • Panel 1 x 1 x 1 Corner Yellow Part 6231 Element 4201587 or 4113238 ×2
  • Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] Yellow Part 43337 Element 6078611 or 4239160 ×2
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×2
  • Plate 1 x 3 Yellow Part 3623 Element 362324 ×4
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×4
  • Plate 2 x 2 Corner Yellow Part 2420 Element 242074 or 242024 ×2
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×1
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×1
  • Plate Round 1 x 1 with Solid Stud Yellow Part 6141 Element 614124 1 spare in the box ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Yellow Part 4081b Element 6281992 or 4632569 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Yellow Part 3794a ×6
  • Technic Brick 1 x 2 [1 Pin Hole] Yellow Part 3700 Element 370024 ×1
  • Tile 1 x 2 with Groove Yellow Part 3069b Element 306924 ×4
  • Tile 1 x 4 with Groove Yellow Part 2431 Element 243124 ×6
  • Tile 1 x 6 with Groove Yellow Part 6636 Element 6388488 or 663624 ×2
  • Tile 1 x 8 with Groove Yellow Part 4162 Element 6388482 or 4189400 ×2

White 74 pieces

  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×2
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×2
  • Brick Curved 6 x 1 White Part 42022 Element 4160387 ×6
  • Brick Curved Inverted 6 x 1 White Part 42023 Element 4160403 ×2
  • Brick Sloped 18° 4 x 2 White Part 30363 Element 4143000 ×1
  • Brick Sloped 33° 3 x 1 White Part 4286 Element 6632142 or 428601 ×2
  • Brick Sloped 33° 3 x 4 White Part 3297 Element 329701 ×2
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper White Part 4287a ×2
  • Brick Sloped Inverted 45° 2 x 1 White Part 3665 Element 6552106 or 366501 ×2
  • Brick Wedged, Angled 4 x 2 Left White Part 41768 Element 4160343 ×1
  • Brick Wedged, Angled 4 x 2 Right White Part 41767 Element 4160325 ×1
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×2
  • Technic Pin 1/2 without Friction Ridges White Part 4274 Element 6552190 or 6388018 1 spare in the box ×36
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×4
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×4
  • Tile 1 x 6 with Groove White Part 6636 Element 6548296 or 663601 ×2
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×1

Dark Gray 73 pieces

  • Bar 1 x 8 with Brick 1 x 2 Curved Top End (Axle Holder Inside Small End) Dark Gray Part 30359b Element 4164069 ×2
  • Brick 2 x 3 Dark Gray Part 3002 Element 4114320 or 300227 ×4
  • Brick 2 x 4 Dark Gray Part 3001 Element 4113855 or 300127 ×2
  • Brick Curved 2 x 2, Two Top Studs Dark Gray Part 30165 Element 4113953 ×4
  • Brick Curved 6 x 2 Dark Gray Part 44126 Element 4180549 ×2
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Dark Gray Part 4287a Element 4112881 or 428727 ×2
  • Brick Sloped Inverted 45° 2 x 1 Dark Gray Part 3665 Element 4114060 or 366527 ×6
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Gray Part 3660 Element 366027 ×34
  • Brick Wedged, Curved 12 x 3 Left Dark Gray Part 42061 Element 4177391 ×1
  • Brick Wedged, Curved 12 x 3 Right Dark Gray Part 42060 Element 4177382 ×1
  • Brick Wedged, Curved Inverted 6 x 2 Left Dark Gray Part 41765 Element 4161282 ×1
  • Brick Wedged, Curved Inverted 6 x 2 Right Dark Gray Part 41764 Element 4161267 ×1
  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 9 Teeth Dark Gray Part 30365 Element 4144501 or 4125291 ×2
  • Hinge Brick 1 x 2 Locking with Single Finger On Top Dark Gray Part 76385 Element 4125384 ×2
  • Plate 1 x 4 Dark Gray Part 3710 Element 371027 ×2
  • Plate 6 x 12 Dark Gray Part 3028 Element 4140489 ×1
  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Dark Gray Part 32064b ×2
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Dark Gray Part 32530 Element 4157827 ×2
  • Technic Steering Wheel Pilot's Yoke [Open Stud, Axle Hole with X Opening] Dark Gray Part 40001 Element 4143464 ×1
  • Tile 2 x 2 with Groove Dark Gray Part 3068b Element 4109986 or 306827 ×1

Black 23 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×4
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 ×1
  • Plate Special 4 x 4, Studs on One Edge Plain] Black Part 6179 Element 617926 ×1
  • Technic Axle 12 Black Part 3708 Element 370826 ×2
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×5
  • 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 #1 Black Part 32013 Element 6284699 or 4107085 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×4

Red 14 pieces

  • Brick Round 2 x 2 with Axle Hole Red Part 3941 Element 614321 or 394121 ×2
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box ×8
  • Technic Brick 1 x 1 with Pin Hole Red Part 6541 Element 654121 ×2
  • Tile Round 2 x 2 with Bottom Cross Red Part 4150 Element 415071 or 415021 ×2

Trans-Brown 3 pieces

  • Brick Curved 6 x 1 Trans-Brown Part 42022 Element 6346294 or 4520018 ×2
  • Windscreen 8 x 6 x 2 Curved Trans-Brown Part 41751 Element 4161245 ×1

Pearl Light Gray 2 pieces

  • Propeller 3 Blade 3 Diameter with Axle Cross Pearl Light Gray Part 6041 Element 4570508 or 4175940 ×2

Tan 1 piece

  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×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.

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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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