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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.

Search Sub [with CD]

Checking

8299 Search Sub [with CD]

379 pieces in 102 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

Yellow 125 pieces

  • Brick Round 2 x 2 with Axle Hole Yellow Part 3941 Element 614324 or 394124 ×2
  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×2
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Yellow Part 4287a ×1
  • Cylinder Half 2 x 4 x 4 Yellow Part 6259 Element 4550074 or 4107077 ×4
  • Gearbox 4 x 4 x 1 2/3 with 1 x 2 Cutouts, Pin Holes Yellow Part 6585 Element 4107096 ×1
  • Hose Rigid 3mm D. 15L / 12cm Yellow Part 75c15 Element 4116947 ×1
  • Hose Rigid 3mm D. 21L / 16.8cm Yellow Part 75c21 Element 4118601 ×1
  • Hose Soft 3mm D. 7L / 5.6cm Yellow Part 46215c07 Element 4107101 ×1
  • Panel 3 x 2 x 6 Yellow Part 2466 Element 4107087 ×4
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×8
  • Plate 1 x 3 Yellow Part 3623 Element 362324 ×1
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×2
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×2
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×7
  • Plate 2 x 2 Corner Yellow Part 2420 Element 242074 or 242024 ×2
  • Plate 4 x 4 Yellow Part 3031 Element 4243817 or 303124 ×1
  • Plate Special 2 x 2 with 2 Pin Holes Yellow Part 2817 Element 4219766 or 4107088 ×1
  • Pneumatic Cylinder with 2 Inlets Medium (48mm) with Black Top Yellow Part 2793c01 Element 4190836 or 74721 ×1
  • Pneumatic Pump New Style with Black Top Yellow Part 2797c02 Element 4563134 or 74720 ×1
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Yellow Part 6553 Element 655324 ×2
  • Technic Axle and Pin Connector Angled #1 Yellow Part 32013 Element 6329889 or 4107066 ×2
  • Technic Axle and Pin Connector Angled #3 - 157.5° Yellow Part 32016 Element 6430834 or 4285186 ×2
  • Technic Axle and Pin Connector Angled #5 - 112.5° Yellow Part 32015 Element 4521998 or 4107068 ×6
  • Technic Axle and Pin Connector Angled #6 - 90° Yellow Part 32014 Element 6268925 or 6072968 ×2
  • Technic Axle and Pin Connector Perpendicular Yellow Part 6536 Element 6261367 or 4173666 ×4
  • Technic Beam 1 x 3 Thin Yellow Part 6632 Element 6344174 or 4107823 ×12
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Yellow Part 6629 Element 6524459 or 6375945 ×2
  • Technic Brick 1 x 10 [9 Pin Holes] Yellow Part 2730 Element 4251460 or 4225500 ×2
  • Technic Brick 1 x 16 [15 Pin Holes] Yellow Part 3703 Element 370324 ×10
  • Technic Brick 1 x 2 [1 Pin Hole] Yellow Part 3700 Element 370024 ×15
  • Technic Brick 1 x 6 [5 Pin Holes] Yellow Part 3894 Element 389424 ×7
  • Technic Cylinder 4 x 4 x 1 2/3 with Axle Holes Yellow Part 2745 ×2
  • Technic Figure Airtank Yellow Part 32038 Element 4107071 ×1
  • Technic Pin Connector Round [No Slot] Yellow Part 75535 Element 75644 ×2
  • Technic Plate 2 x 4 [3 Holes] Yellow Part 3709 Element 370924 ×7
  • Tile 2 x 2 with Groove Yellow Part 3068b Element 6388487 or 306824 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Yellow Part 2412b Element 241224 ×2
  • Wing, Tail 4 x 1 x 3 Yellow Part 2340 Element 6134150 or 4258348 ×1

Light Gray 121 pieces

  • Brick 1 x 2 Light Gray Part 3004 Element 300402 ×4
  • Brick 2 x 2 Light Gray Part 3003 Element 4103591 or 300352 ×1
  • Brick 2 x 4 Light Gray Part 3001 Element 4116259 or 300102 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Gray Part 3040b Element 4121933 or 304002 ×2
  • Brick Sloped Inverted 45° 2 x 1 Light Gray Part 3665 Element 366502 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Light Gray Part 3660 Element 366002 ×1
  • Hose, Pneumatic 4mm D. 12.5L / 10cm Light Gray Part 5102c12.5 ×1
  • Hose, Pneumatic 4mm D. 17.5L / 14cm Light Gray Part 5102c17.5 ×1
  • Plate 2 x 2 Light Gray Part 3022 Element 302202 ×3
  • Pneumatic Switch with Top Studs Light Gray Part 75215 Element 4190775 or 75215 ×1
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Light Gray Part 6553 Element 655302 ×11
  • Technic Axle Connector Ridged [with x Hole x Orientation] Light Gray Part 6538b Element 4113804 or 4100408 ×1
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×10
  • Technic Axle and Pin Connector Angled #1 Light Gray Part 32013 Element 4106376 ×6
  • Technic Axle and Pin Connector Angled #6 - 90° Light Gray Part 32014 Element 4143353 or 4106377 ×3
  • Technic Axle and Pin Connector Perpendicular Light Gray Part 6536 Element 4173667 or 653602 ×11
  • Technic Beam 1 x 3 Thin Light Gray Part 6632 Element 4107825 ×2
  • Technic Beam 1 x 4 Thin with Stud Connector Light Gray Part 2825 Element 4107133 or 282502 ×4
  • Technic Brick 1 x 2 [1 Pin Hole] Light Gray Part 3700 Element 370002 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] Light Gray Part 32000 Element 3200002 ×2
  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 1 spare in the box ×3
  • Technic Bush 1/2 Toothed Type II [X Opening] Light Gray Part 4265b Element 4100501 or 657702 1 spare in the box ×28
  • Technic Gear 12 Tooth Bevel Light Gray Part 6589 Element 658902 ×4
  • Technic Gear 16 Tooth with Round Holes [Old Style] Light Gray Part 4019 Element 4107176 or 401902 ×2
  • Technic Gear 24 Tooth Crown with Reinforcements [New Style] Light Gray Part 3650c Element 365002 ×1
  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 1 spare in the box ×7
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×3
  • Technic Shock Absorber 6.5L with Normal Spring [Complete Assembly] Light Gray Part 73129 Element 73129 ×1
  • Technic Steering Wheel Small (3 Studs Diameter) Light Gray Part 2819 Element 4113032 or 281902 ×1
  • Technic Wedge Belt Wheel [aka Pulley] Light Gray Part 4185 Element 4100502 or 418502 ×2

Black 119 pieces

  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Black Part 3747b Element 4500458 or 374726 ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×2
  • Propeller 3 Blade 3 Diameter with Axle Cross Black Part 6041 Element 604126 ×4
  • Technic Axle 10 Black Part 3737 Element 373726 ×1
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×16
  • Technic Axle 3 Black Part 4519 Element 6238084 or 451926 ×1
  • Technic Axle 4 Black Part 3705 Element 370526 ×13
  • Technic Axle 6 Black Part 3706 Element 370626 ×10
  • Technic Axle 8 Black Part 3707 Element 370726 ×4
  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×1
  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 ×2
  • Technic Beam 1 x 5 Thin Black Part 32017 Element 6114935 or 4503423 ×6
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Black Part 6629 Element 6279881 or 4119800 ×4
  • Technic Brick 1 x 16 [15 Pin Holes] Black Part 3703 Element 370326 ×2
  • Technic Figure Scuba Flipper Black Part 32008 Element 4107072 ×2
  • Technic Figure Scuba Mask Black Part 32037 Element 4107070 ×1
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×8
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×29
  • Technic Plate 2 x 4 [3 Holes] Black Part 3709 Element 370926 ×2
  • Technic Worm Gear Black Part 4716 Element 6037533 or 471626 ×1
  • Tile Round 2 x 2 with Bottom Cross Black Part 4150 Element 415076 or 415026 ×2
  • Tile Special Round 2 x 2 - Thin Lifting Ring Black Part 2376 Element 237626 ×1
  • Tyre Offset Tread 24 x 8 Black Part 3483 Element 4501048 or 348326 ×2
  • Wheel with Split Axle hole Black Part 3482 Element 4279396 or 4199226 ×2

Dark Gray 7 pieces

  • Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×6
  • Technic Pin 3/4 Dark Gray Part 32002 Element 4109854 1 spare in the box ×1

Blue 3 pieces

  • Hose, Pneumatic 4mm D. 20L / 16cm Blue Part 5102c20 Element 6449538 ×1
  • Hose, Pneumatic 4mm D. 23.75L / 19cm Blue Part 5102c23.75 ×1
  • Pneumatic Airtank Blue Part 75974 Element 4107073 ×1

[No Color/Any Color] 3 pieces

  • CD-Rom, for Set 8299-1 [No Color/Any Color] Part 8760 ×1
  • Sticker Sheet for Sets 8299-1, 8250-1 [No Color/Any Color] Part 71465 Element 4106749 ×1
  • Technic Figure Blue Legs, Black Top with Zippered Wetsuit Print [Diver] [No Color/Any Color] Part 2698c01pr0002 ×1

Trans-Red 1 piece

  • Plate 1 x 1 Trans-Red Part 3024 Element 6513963 or 6252042 ×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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