BlockTalk Find Your Set

Free tool

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.

Dark Side Developer Kit

Checking

9754 Dark Side Developer Kit

578 pieces in 108 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.

Show

Piece checklist

Black 246 pieces

  • Arm Piece with Pin, 2 Fingers Black Part 6048a Element 604826 ×2
  • Arm Piece with Pin, 3 Fingers Black Part 6217 Element 4107590 or 4101774 ×2
  • Dish 4 x 4 Inverted [Radar] Black Part 3960 Element 396026 ×1
  • Gearbox 4 x 4 x 1 2/3 with 1 x 2 Cutouts, Pin Holes Black Part 6585 Element 6169982 or 4500902 ×1
  • Plate 1 x 6 Black Part 3666 Element 366626 ×1
  • Plate 2 x 6 Black Part 3795 Element 379526 ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×16
  • Rubber Band 15mm [Square Cross Section] Black Part 23229 Element 4141604 1 spare in the box ×2
  • Technic Axle 10 Black Part 3737 Element 373726 ×2
  • Technic Axle 12 Black Part 3708 Element 370826 ×2
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×16
  • Technic Axle 3 Black Part 4519 Element 6238084 or 451926 ×11
  • Technic Axle 4 Black Part 3705 Element 370526 ×9
  • Technic Axle 5 Black Part 32073 Element 4114740 ×2
  • Technic Axle 6 Black Part 3706 Element 370626 ×3
  • Technic Axle 8 Black Part 3707 Element 370726 ×7
  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×6
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×4
  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×2
  • Technic Axle and Pin Connector Angled #3 - 157.5° Black Part 32016 Element 6261386 or 4107082 ×4
  • Technic Axle and Pin Connector Angled #5 - 112.5° Black Part 32015 Element 6271346 or 4107084 ×4
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 ×6
  • Technic Axle and Pin Connector Perpendicular Double Black Part 32291 Element 6280394 or 4140430 ×2
  • Technic Beam 1 x 15 Thick Black Part 32278 Element 4542573 or 4128603 ×2
  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 ×14
  • Technic Beam 1 x 4 Thin with Stud Connector Black Part 2825 Element 6331570 or 4107136 ×2
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Black Part 32271 Element 6276835 or 4140327 ×2
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 ×8
  • Technic Beam 3 x 5 L-Shape with Quarter Ellipse Thin Black Part 32250 Element 6327162 or 4128557 ×8
  • Technic Beam 3 x 7 x 2 Fork 3 Fingers Black Part 32308 Element 4140423 ×1
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Black Part 32064a Element 6178922 or 4233487 ×2
  • Technic Pin Connector Block 1 x 5 x 3 Black Part 32333 Element 6271358 or 4141810 ×8
  • Technic Pin Connector Round [No Slot] Black Part 75535 Element 75619 ×7
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×8
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×24
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×44
  • Technic Steering Arm with 2 Pins Black Part 32069 Element 6278276 or 4114671 ×1
  • Tyre 30.4 x 14 VR Black Part 6578 Element 4561806 or 657826 ×4
  • Wheel Rim 24 x 14 VR with Center Axle Hole Black Part 2994 Element 4496674 or 4111951 ×4

Light Gray 207 pieces

  • Brick Sloped 33° 3 x 1 Light Gray Part 4286 Element 428602 ×2
  • Brick Sloped 33° 3 x 2 Light Gray Part 3298 Element 329802 ×17
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Gray Part 3040b Element 4121933 or 304002 ×2
  • Hub, Micro Scout with Red Buttons and Dark Gray Base Light Gray Part 32344c03 ×1
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×16
  • Plate 1 x 4 Light Gray Part 3710 Element 371002 ×1
  • Plate 1 x 6 Light Gray Part 3666 Element 366602 ×1
  • Plate 2 x 10 Light Gray Part 3832 Element 383202 ×8
  • Plate Round 1 x 1 with Solid Stud Light Gray Part 6141 Element 614102 1 spare in the box ×32
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Gray Part 4032a Element 403202 ×8
  • Technic Axle Connector with Axle Hole Light Gray Part 32039 Element 4106469 ×2
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 1 spare in the box ×34
  • Technic Axle and Pin Connector Angled #1 Light Gray Part 32013 Element 4106376 ×4
  • Technic Beam 1 x 5 Thin Light Gray Part 32017 Element 4106885 ×4
  • Technic Brick 1 x 10 [9 Pin Holes] Light Gray Part 2730 Element 273002 ×4
  • Technic Brick 1 x 4 [3 Pin Holes] Light Gray Part 3701 Element 370102 ×8
  • Technic Brick 1 x 6 [5 Pin Holes] Light Gray Part 3894 Element 389402 ×4
  • Technic Brick 4 x 4 with 2 x 2 Opening Light Gray Part 32324 Element 4141499 ×4
  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 1 spare in the box ×8
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Gray Part 32123a 1 spare in the box ×11
  • Technic Gear 12 Tooth Double Bevel Light Gray Part 32270 Element 4141454 or 4125322 ×2
  • Technic Gear 16 Tooth with Round Holes [Old Style] Light Gray Part 4019 Element 4107176 or 401902 ×2
  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening] Light Gray Part 32269 Element 4141455 ×2
  • Technic Gear 24 Tooth Crown with Reinforcements [New Style] Light Gray Part 3650c Element 365002 ×1
  • Technic Gear 24 Tooth [New Style with Single Axle Hole] Light Gray Part 3648b Element 4107543 or 364802 ×1
  • Technic Gear 8 Tooth Light Gray Part 3647 Element 364702 1 spare in the box ×1
  • Technic Panel Fairing # 1 Large Short, Large Holes, Side A Light Gray Part 32190 Element 4140340 ×2
  • Technic Panel Fairing # 2 Large Short, Large Holes, Side B Light Gray Part 32191 Element 4140341 ×2
  • Technic Panel Fairing # 3 Large Long, Large Holes, Side A Light Gray Part 32188 Element 4141576 ×2
  • Technic Panel Fairing # 4 Large Long, Large Holes, Side B Light Gray Part 32189 Element 4141575 ×2
  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 1 spare in the box ×4
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×12
  • Technic Plate 2 x 4 [3 Holes] Light Gray Part 3709 Element 370902 ×1
  • Wedge Plate 3 x 6 Cut Corners Light Gray Part 2419 Element 241902 ×2

Dark Gray 88 pieces

  • Hose Rigid 3mm D. 16L / 12.8cm Dark Gray Part 75c16 Element 4194678 ×2
  • Hose Rigid 3mm D. 3L / 2.4cm Dark Gray Part 75c03 Element 4118604 1 spare in the box ×1
  • Hose Rigid 3mm D. 8L / 6.4cm Dark Gray Part 75c08 Element 4125354 ×4
  • Plate 1 x 2 Dark Gray Part 3023 Element 4111983 or 302327 ×2
  • Plate 2 x 8 Dark Gray Part 3034 Element 303427 ×4
  • Technic Arm 1 x 7 x 3 with Gear Ends Dark Gray Part 32311 Element 4142294 or 4140434 ×2
  • Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×3
  • Technic Axle Connector Ridged [with x Hole x Orientation] Dark Gray Part 6538b Element 4141426 ×8
  • Technic Axle and Pin Connector Angled #1 Dark Gray Part 32013 Element 4140503 ×4
  • Technic Axle and Pin Connector Angled #4 - 135° Dark Gray Part 32192 Element 4142293 ×4
  • Technic Beam 1 x 11.5 Double Bent Thick Dark Gray Part 32009 Element 4141418 ×4
  • Technic Beam 1 x 15 Thick Dark Gray Part 32278 Element 4142292 ×8
  • Technic Beam 1 x 5 Thick Dark Gray Part 32316 Element 4142136 or 4141430 ×6
  • Technic Beam 1 x 7 with Fan Dark Gray Part 32177 Element 4130188 or 4124033 ×2
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Dark Gray Part 6629 Element 4124210 ×2
  • Technic Block 3 x 5 x 1 2/3 Dark Gray Part 32310 Element 4140476 or 4130191 ×1
  • Technic Brick 1 x 12 [11 Pin Holes] Dark Gray Part 3895 Element 4200025 or 4142296 ×4
  • Technic Brick 1 x 4 [3 Pin Holes] Dark Gray Part 3701 Element 4124040 ×6
  • Technic Brick 1 x 6 [5 Pin Holes] Dark Gray Part 3894 Element 4189130 or 4124037 ×4
  • Technic Brick 1 x 8 [7 Pin Holes] Dark Gray Part 3702 Element 4142295 or 4141471 ×4
  • Technic Engine Crankshaft Center Dark Gray Part 2854 Element 285427 ×1
  • Technic Pin 3/4 Dark Gray Part 32002 Element 4109854 1 spare in the box ×8
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Dark Gray Part 32054 Element 4141437 ×4

Red 14 pieces

  • Technic Gear 12 Tooth Bevel Red Part 6589 Element 6157503 or 4142298 ×7
  • Technic Gear 16 Tooth with Round Holes [Old Style] Red Part 4019 Element 4189405 or 4141812 ×2
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Red Part 32054 Element 4140806 or 4125198 ×5

Trans-Red 9 pieces

  • Bar 4L (Lightsaber Blade / Wand) Trans-Red Part 30374 Element 6507880 or 6167284 ×4
  • Cone 1 x 1 [No Top Groove] Trans-Red Part 4589 Element 618841 ×3
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×2

Pearl Light Gray 4 pieces

  • Hose, Ribbed 7mm D. 7L / 5.6cm Pearl Light Gray Part 78c07 Element 4495203 or 4141522 ×4

Trans-Dark Blue 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Dark Blue Part 6141 Element 6514055 or 6240214 1 spare in the box ×2

Trans-Light Blue 2 pieces

  • Bar 4L (Lightsaber Blade / Wand) Trans-Light Blue Part 30374 Element 6507882 or 6170187 ×2

Trans-Neon Green 2 pieces

  • Bar 4L (Lightsaber Blade / Wand) Trans-Neon Green Part 30374 Element 6507881 or 6170186 ×2

Trans-Neon Orange 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Neon Orange Part 6141 Element 6240218 or 3005747 1 spare in the box ×2

Trans-Yellow 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×2

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.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy