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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.

Sopwith Camel

Checking

3451 Sopwith Camel

577 pieces in 188 part and color combinations.

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

Brown 134 pieces

  • Hinge Plate 1 x 8 Locking with Angled Side Extensions, Rounded Plate Underside, 9 Teeth Brown Part 30407 Element 4162496 ×2
  • Plate 1 x 2 Brown Part 3023 Element 302325 ×4
  • Plate 1 x 3 Brown Part 3623 Element 362325 ×2
  • Plate 2 x 12 Brown Part 2445 Element 4143356 ×1
  • Plate 2 x 16 Brown Part 4282 Element 4129502 ×1
  • Plate 2 x 3 Brown Part 3021 Element 4114000 or 302125 ×4
  • Plate 2 x 4 Brown Part 3020 Element 4109982 or 302025 ×6
  • Plate 2 x 6 Brown Part 3795 Element 4162472 or 379525 ×1
  • Plate 4 x 12 Brown Part 3029 Element 4141045 ×1
  • Plate 4 x 6 Brown Part 3032 Element 4141462 ×6
  • Plate 4 x 8 Brown Part 3035 Element 4129998 or 303525 ×2
  • Plate 6 x 12 Brown Part 3028 Element 4162457 or 302825 ×1
  • Plate 6 x 8 Brown Part 3036 Element 4251562 or 4162458 ×2
  • Plate Round 1 x 1 with Solid Stud Brown Part 6141 Element 4162489 or 4128577 1 spare in the box ×6
  • Plate Round Corner 3 x 3 Brown Part 30357 Element 4162495 ×6
  • Plate Special 4 x 4, Studs on One Edge Plain] Brown Part 6179 Element 4162490 or 617925 ×8
  • Plate Special 4 x 6, Studs on 3 Edges Brown Part 6180 Element 4162491 or 618025 ×4
  • Plate Special 6 x 16, Studs on 3 Edges Brown Part 6205 Element 4162492 or 620525 ×8
  • Technic Axle 4 Brown Part 3705 Element 4162390 ×10
  • Technic Axle 8 Brown Part 3707 Element 4162469 ×4
  • Technic Axle and Pin Connector Angled #1 Brown Part 32013 Element 4141431 or 4130160 ×12
  • Technic Axle and Pin Connector Angled #5 - 112.5° Brown Part 32015 Element 4162505 ×8
  • Technic Link 1 x 9 Brown Part 32293 Element 4162506 ×2
  • Technic Pin Connector Round [No Slot] Brown Part 75535 Element 4141409 ×3
  • Technic Wedge Belt Wheel [aka Pulley] Brown Part 4185 Element 4162482 or 4107463 ×3
  • Technic Wishbone Suspension Arm 9L Brown Part 32294 Element 4162507 ×4
  • Tile 1 x 2 with Groove Brown Part 3069b Element 306925 ×1
  • Tile 1 x 4 with Groove Brown Part 2431 Element 4116732 or 243125 ×1
  • Tile 2 x 2 with Groove Brown Part 3068b Element 4191067 or 4162460 ×5
  • Tile Special 1 x 2 Grille with Bottom Groove Brown Part 2412b Element 4129977 or 241225 ×2
  • Wedge Plate 3 x 3 Cut Corner Brown Part 2450 Element 4256579 or 4125222 ×4
  • Wedge Plate 4 x 4 Cut Corner Brown Part 30503 Element 4162497 ×2
  • Wedge Plate 8 x 4 Wing Left Brown Part 3933 Element 4162479 or 393325 ×2
  • Wedge Plate 8 x 4 Wing Right with Stud Notch Brown Part 3934 Element 4162481 or 393425 ×2
  • Window 1 x 2 x 3 Pane Latticed Brown Part 2529 Element 4162388 ×4

Dark Gray 134 pieces

  • Brick 1 x 1 Dark Gray Part 3005 Element 4114079 or 300527 ×2
  • Brick 1 x 10 Dark Gray Part 6111 Element 4114327 or 611127 ×2
  • Brick 1 x 12 Dark Gray Part 6112 Element 4162487 ×2
  • Brick 1 x 2 Dark Gray Part 3004 Element 4113909 or 300427 ×3
  • Brick 1 x 3 Dark Gray Part 3622 Element 4114313 or 362227 ×3
  • Brick 1 x 4 Dark Gray Part 3010 Element 4114308 or 301027 ×5
  • Brick 1 x 8 Dark Gray Part 3008 Element 4114081 or 300827 ×4
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Dark Gray Part 6091 Element 4162486 or 4118747 ×2
  • Brick Sloped 33° 3 x 1 Dark Gray Part 4286 Element 4108045 or 428627 ×2
  • Brick Sloped 45° 2 x 4 Dark Gray Part 3037 Element 4121718 or 303727 ×2
  • Brick Sloped Inverted 45° 2 x 1 Dark Gray Part 3665 Element 4114060 or 366527 ×1
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Gray Part 3660 Element 366027 ×3
  • Brick Special 1 x 4 with 4 Studs on One Side Dark Gray Part 30414 Element 4144532 ×1
  • Brick Special 2 x 2 with Pin and Axle Hole Dark Gray Part 6232 Element 4108048 ×1
  • Dish 2 x 2 Inverted [Radar] Dark Gray Part 4740 Element 474027 ×6
  • Equipment Binoculars Dark Gray Part 30162 Element 4109923 ×1
  • Hinge Brick 1 x 4 [Lower] Dark Gray Part 3831 Element 4162477 or 383127 ×4
  • Hinge Brick 1 x 4 [Upper] Dark Gray Part 3830 Element 4162475 or 383027 ×4
  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Dark Gray Part 30383 Element 4144572 or 4124434 ×2
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Dark Gray Part 73983 Element 4143378 or 4111851 ×4
  • Plate 1 x 1 Dark Gray Part 3024 Element 4143684 or 4113910 ×4
  • Plate 1 x 2 Dark Gray Part 3023 Element 4111983 or 302327 ×13
  • Plate 1 x 4 Dark Gray Part 3710 Element 371027 ×2
  • Plate 1 x 6 Dark Gray Part 3666 Element 4109987 or 366627 ×4
  • Plate 1 x 8 Dark Gray Part 3460 Element 346027 ×11
  • Plate 2 x 10 Dark Gray Part 3832 Element 4141769 or 383227 ×1
  • Plate 2 x 16 Dark Gray Part 4282 Element 4162484 ×1
  • Plate 2 x 3 Dark Gray Part 3021 Element 4108041 or 302127 ×3
  • Plate 2 x 4 Dark Gray Part 3020 Element 4112232 or 302027 ×9
  • Plate 2 x 6 Dark Gray Part 3795 Element 379527 ×1
  • Plate 2 x 8 Dark Gray Part 3034 Element 303427 ×1
  • Plate Round 1 x 1 with Solid Stud Dark Gray Part 6141 Element 4124087 or 614127 1 spare in the box ×8
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Gray Part 2540 Element 4140589 or 4109721 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Dark Gray Part 3794a Element 4118864 or 379427 ×3
  • Technic Pin 3/4 Dark Gray Part 32002 Element 4109854 1 spare in the box ×4
  • Tile 1 x 4 with Groove Dark Gray Part 2431 Element 4109979 ×2
  • Tile 1 x 6 with Groove Dark Gray Part 6636 Element 4129575 or 4108155 ×2
  • Tile 1 x 8 with Groove Dark Gray Part 4162 Element 416227 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Gray Part 2412b Element 4124056 or 241227 ×4
  • Wedge Plate 4 x 6 Cut Corners Dark Gray Part 32059 Element 4129577 ×1
  • Wedge Plate 4 x 9 without Stud Notches Dark Gray Part 2413 Element 4120499 ×1
  • Wedge Plate 7 x 6 Boat Bow without Stud Notches Dark Gray Part 2625 ×1

Black 79 pieces

  • Belville / Scala, Brick Round 1 x 1 x 2/3 Round Black Part 33286 Element 4162509 ×2
  • Brick 1 x 16 Black Part 2465 Element 246576 or 246526 ×4
  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×4
  • Brick Special 1 x 4 with Groove Black Part 2653 Element 265326 ×2
  • Cone 1 x 1 [No Top Groove] Black Part 4589 Element 4518219 or 458926 ×2
  • Hinge Bar 2.5L with 2 and 3 Fingers on Ends (Pantograph Shoe Holder) Black Part 2923 Element 292326 ×1
  • Hinge Bar with 3 Fingers and End Stud (Control Lever) Black Part 2433 Element 4497182 or 243326 ×2
  • Hinge Plate 1 x 2 with 3 Fingers On Side Black Part 2452 Element 245226 ×1
  • Hinge Tile 1 x 2 1/2 with 2 Fingers on Top Black Part 4531 Element 453126 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×3
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×8
  • Plate Special 1 x 8 with Door Rail Black Part 4510 Element 4286009 or 451026 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Black Part 2444 Element 244426 ×5
  • String with End Studs 11L Overall Black Part 14226c11 Element 6096955 or 6037558 ×4
  • String with End Studs 21L Overall Black Part 14226c21 Element 4109617 ×6
  • Technic Axle 10 Black Part 3737 Element 373726 ×1
  • Technic Axle 12 Black Part 3708 Element 370826 ×1
  • Technic Brick 1 x 1 with Pin Hole Black Part 6541 Element 654126 ×2
  • Technic Brick 4 x 6 with 2 x 4 Opening Black Part 32531 Element 6456527 or 4162508 ×1
  • Technic Pin Connector Round [No Slot] Black Part 75535 Element 75619 ×4
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×18
  • Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×2
  • Technic Steering Wheel Large Black Part 2741 Element 4125213 ×2

Tan 71 pieces

  • Brick 1 x 1 Tan Part 3005 Element 4113915 or 300505 ×2
  • Brick 1 x 2 Tan Part 3004 Element 4109995 or 300405 ×1
  • Brick 1 x 3 Tan Part 3622 Element 4162465 or 4113920 ×4
  • Brick 2 x 2 Tan Part 3003 Element 4114306 or 300305 ×1
  • Brick 2 x 2 Corner Tan Part 2357 Element 4124455 or 4112541 ×2
  • Brick 2 x 4 Tan Part 3001 Element 4114319 or 300105 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Tan Part 3040b Element 4121972 or 4113989 ×6
  • Brick Sloped 45° 2 x 2 Tan Part 3039 Element 4114322 ×6
  • Brick Sloped 65° 2 x 2 x 2 Smooth without Bottom Tube Tan Part 3678a Element 4129999 or 367805 ×2
  • Dish 4 x 4 Inverted [Radar] Tan Part 3960 Element 6265305 or 4597263 ×2
  • Plate 1 x 2 Tan Part 3023 Element 4113917 or 302305 ×6
  • Plate 1 x 4 Tan Part 3710 Element 4113233 or 371005 ×5
  • Plate 1 x 8 Tan Part 3460 Element 4114324 or 346005 ×2
  • Plate 2 x 2 Tan Part 3022 Element 4114084 or 302205 ×2
  • Plate 2 x 2 Corner Tan Part 2420 Element 4114077 or 242005 ×6
  • Plate 2 x 3 Tan Part 3021 Element 4118790 or 302105 ×3
  • Plate 2 x 4 Tan Part 3020 Element 4114309 or 302005 ×4
  • Plate 2 x 6 Tan Part 3795 Element 4113993 or 379505 ×4
  • Plate 2 x 8 Tan Part 3034 Element 4113988 or 303405 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Tan Part 2540 Element 4140593 or 4125271 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Tan Part 32184 Element 4140459 or 4130185 ×2
  • Technic Brick 1 x 8 [7 Pin Holes] Tan Part 3702 Element 4162466 or 370205 ×4
  • Tile 1 x 6 with Groove Tan Part 6636 Element 4157277 or 4108151 ×2

Light Gray 63 pieces

  • Brick 2 x 4 Light Gray Part 3001 Element 4116259 or 300102 ×2
  • Dish 2 x 2 Inverted [Radar] Light Gray Part 4740 Element 474002 ×12
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Light Gray Part 4349 Element 434902 ×6
  • Plate 2 x 3 Light Gray Part 3021 Element 302102 ×2
  • Plate Round 1 x 1 with Solid Stud Light Gray Part 6141 Element 614102 1 spare in the box ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Gray Part 4032a Element 403202 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Gray Part 3794a Element 379402 ×4
  • Plate Special 2 x 2 with Towball Light Gray Part 3729 Element 372902 ×1
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×4
  • Technic Axle Towball Light Gray Part 2736 Element 273602 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] Light Gray Part 32000 Element 3200002 ×1
  • Technic Brick 1 x 6 [5 Pin Holes] Light Gray Part 3894 Element 389402 ×1
  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 1 spare in the box ×3
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Gray Part 32123a 1 spare in the box ×5
  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 1 spare in the box ×10
  • Technic Plate 1 x 5 with Smooth Ends, 4 Studs and Centre Axle Hole Light Gray Part 32124 Element 4114688 ×1
  • Tile 1 x 2 with Red 82, Yellow and White Gauges Print Light Gray Part 3069bpr0101 Element 4117099 ×1
  • Tile 1 x 4 with Groove Light Gray Part 2431 Element 243102 ×4
  • Tile Special 1 x 2 with Handle Light Gray Part 2432 Element 243202 ×2

Red 54 pieces

  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×1
  • Brick 1 x 3 Red Part 3622 Element 362221 ×2
  • Brick 1 x 4 Red Part 3010 Element 301021 ×2
  • Brick 2 x 2 Corner Red Part 2357 Element 235771 or 235721 ×2
  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×3
  • Brick 2 x 4 Red Part 3001 Element 300121 ×1
  • Brick Arch 1 x 3 x 2 Curved Top Red Part 6005 Element 6212012 or 4631357 ×1
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Red Part 6091 Element 6184782 or 609121 ×2
  • Brick Round 2 x 2 with Axle Hole Red Part 3941 Element 614321 or 394121 ×4
  • Brick Sloped 45° 2 x 4 Red Part 3037 Element 303721 ×2
  • Brick Sloped 75° 2 x 1 x 3 with Open Stud Red Part 4460a Element 446021 ×1
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Red Part 3660 Element 366021 ×1
  • Brick Special 1 x 2 with Grille Red Part 2877 Element 6219677 or 287721 ×2
  • Brick Special 2 x 2 with Pin and Axle Hole Red Part 6232 Element 6347696 or 623221 ×1
  • Fence Spindled 4 x 4 x 2 Quarter Round with 2 Studs Red Part 30056 Element 4294557 or 4162493 ×4
  • Flag 2 x 2 Square [Thin Clips] Red Part 2335 Element 4523404 or 4162384 ×2
  • Plate 1 x 1 Red Part 3024 Element 302421 ×1
  • Plate 1 x 2 Red Part 3023 Element 302321 ×4
  • Plate 1 x 6 Red Part 3666 Element 366621 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Red Part 3794a ×2
  • Technic Brick 1 x 1 with Pin Hole Red Part 6541 Element 654121 ×4
  • Technic Brick 1 x 8 [7 Pin Holes] Red Part 3702 Element 370221 ×2
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×4
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×1
  • Tile 2 x 2 with Groove Red Part 3068b Element 306821 ×2

Blue 23 pieces

  • Brick Special 1 x 2 with Pin Blue Part 2458 Element 245823 ×1
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×3
  • Plate 1 x 3 Blue Part 3623 Element 362323 ×2
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×3
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×3
  • Plate Round 1 x 1 with Solid Stud Blue Part 6141 Element 614123 1 spare in the box ×6
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Blue Part 3794a ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Blue Part 3700 Element 370023 ×2
  • Wedge Plate 4 x 9 without Stud Notches Blue Part 2413 Element 241323 ×1

White 9 pieces

  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×1
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×2
  • Brick Special 2 x 2 with Pin and Axle Hole White Part 6232 Element 6403936 or 4143137 ×1
  • Panel 1 x 4 x 3 [Hollow Studs] White Part 4215b ×2
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) White Part 3794a ×1
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×1

Yellow 9 pieces

  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×5
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×3
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 3451-1 [No Color/Any Color] Part 42210 Element 4162510 ×1

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

When a piece really is missing

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