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.

X-1 Ninja Charger

Checking

71737 X-1 Ninja Charger

575 pieces in 193 part and color combinations, plus 5 minifigures.

The official piece count includes the 24 parts inside the set's minifigures, which this inventory lists separately. 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.

Show

Piece checklist

Black 181 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Black Part 99780 Element 6020193 ×7
  • Brick 1 x 1 Black Part 3005 Element 300526 ×2
  • Brick 2 x 4 Black Part 3001 Element 300126 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Black Part 6091 Element 6383142 or 6184784 ×2
  • Brick Curved 4 x 2 No Studs Black Part 93606 Element 4647286 ×1
  • Brick Curved Inverted 2 x 1 Black Part 24201 Element 6147050 ×2
  • Brick Round 2 x 2 Truncated Cone Black Part 98100 Element 4653822 ×1
  • Brick Sloped 18° 4 x 1 Black Part 60477 Element 4515362 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box ×7
  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×2
  • Brick Special 1 x 1 with Stud on 1 Side Black Part 87087 Element 4558954 ×1
  • Brick Special 1 x 2 with 2 Studs on 1 Side Black Part 11211 Element 6138173 ×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
  • Panel 1 x 1 x 1 Corner Black Part 6231 Element 4106347 or 4101709 ×2
  • Plate 1 x 12 Black Part 60479 Element 4514845 ×7
  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 1 x 4 Black Part 3710 Element 371026 Also in Dark Bluish Gray ×7
  • Plate 1 x 6 Black Part 3666 Element 366626 ×7
  • Plate 2 x 10 Black Part 3832 Element 383226 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×7
  • Plate 2 x 6 Black Part 3795 Element 379526 ×3
  • Plate 6 x 6 Black Part 3958 Element 395826 ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×2
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Black Part 61252 Element 6308000 or 4517925 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 ×2
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Black Part 60470b Element 6310268 or 4556158 ×4
  • Plate Special 1 x 2 with Pin Hole Underneath Black Part 18677 Element 6192309 or 6167497 ×6
  • Plate Special 1 x 2, Top Clip [Open O] Black Part 44861 Element 6347310 ×4
  • Plate Special 2 x 2 with Only 2 studs Black Part 33909 Element 6192346 ×2
  • Technic Axle 4 Black Part 3705 Element 370526 ×6
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×2
  • Technic Axle and Pin Connector Angled #4 - 135° Black Part 32192 Element 6262897 or 4121610 ×2
  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 ×4
  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 ×2
  • Technic Beam 1 x 4 Thin Black Part 32449 Element 6327548 or 4142236 ×2
  • 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 2 [2 Pin Holes] Black Part 32000 Element 3200026 ×2
  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×4
  • Technic Pin Connector Round 1L [Beam] Black Part 18654 Element 6121485 1 spare in the box ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×16
  • Technic Pin with Friction Ridges Lengthwise and Towball - Round Pin Hole Black Part 66906 Element 6344752 ×2
  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 1 spare in the box ×2
  • Tile 1 x 3 Black Part 63864 Element 4558170 ×4
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×3
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×5
  • Tile Special 2 x 3 Pentagonal Black Part 22385 Element 6245251 or 6128992 ×1
  • Tyre 24 x 14 Shallow Tread (Tread Small Hub), Band Around Center of Tread Black Part 89201 Element 6132299 or 4639695 ×2
  • Tyre 37 x 22 ZR Black Part 55978 Element 6518542 or 4499234 ×4
  • Weapon Lightsaber Hilt with Bottom Ring Black Part 64567 Element 4614712 or 4598897 1 spare in the box ×2
  • Wedge Plate 2 x 2 Left Black Part 24299 Element 6141554 ×1
  • Wedge Plate 2 x 2 Right Black Part 24307 Element 6141556 ×1
  • Wedge Plate 3 x 2 Left Black Part 43723 Element 4180536 ×2
  • Wedge Plate 3 x 2 Right Black Part 43722 Element 4180508 ×2
  • Wedge Plate 4 x 2 Left Black Part 41770 Element 4161332 ×2
  • Wedge Plate 4 x 2 Right Black Part 41769 Element 4160869 ×2
  • Wheel Arch, Mudguard 3 x 4 with 2 x 2 Plate Black Part 28326 Element 6170597 ×1
  • Windscreen 3 x 6 x 1 Curved with Rectangular Stud Holder in Bottom Black Part 35299 Element 6560521 or 6331331 ×1

Red 161 pieces

  • Bracket 1 x 2 - 2 x 2 Inverted Red Part 99207 Element 6001806 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Red Part 11477 Element 6029946 ×3
  • Brick Curved 2 x 2 x 2/3 Red Part 15068 Element 6105976 ×1
  • Brick Curved 3 x 2 No Studs Red Part 24309 Element 6132210 ×1
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] Red Part 11153 Element 6583512 or 6045937 ×2
  • Brick Curved 4 x 2 No Studs Red Part 93606 Element 4613174 ×4
  • Brick Curved 8 x 2 No Studs Red Part 42918 Element 6321762 ×4
  • Brick Sloped 30° 1 x 2 x 2/3 Red Part 85984 Element 4651524 ×6
  • Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no stud Red Part 28192 Element 6275178 ×10
  • Brick Sloped Inverted 45° 2 x 1 Red Part 3665 Element 366521 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Red Part 3660 Element 366021 ×1
  • Brick Special 1 x 4 with 4 Studs on One Side Red Part 30414 Element 4177991 or 4157223 ×1
  • Brick Wedged, Curved 2 x 1 with Stud Notch Left Red Part 29120 Element 6177505 ×4
  • Brick Wedged, Curved 2 x 1 with Stud Notch Right Red Part 29119 Element 6177507 ×4
  • Brick Wedged, Curved 3 x 4 x 2/3 Cutout Red Part 11291 Element 6179656 or 6016772 ×1
  • Flag 2 x 2 Trapezoid with Flat Area between Clips Red Part 44676 Element 6134627 ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×21
  • Plate 1 x 3 Red Part 3623 Element 362321 ×20
  • Plate 1 x 6 Red Part 3666 Element 366621 ×2
  • Plate 1 x 8 Red Part 3460 Element 346021 ×2
  • Plate 2 x 10 Red Part 3832 Element 383221 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×4
  • Plate 2 x 2 Corner Red Part 2420 Element 242071 or 242021 ×2
  • Plate 2 x 3 Red Part 3021 Element 302121 ×10
  • Plate 2 x 6 Red Part 3795 Element 379521 ×3
  • Plate 2 x 8 Red Part 3034 Element 303421 ×4
  • Plate Special 1 x 2 Side Handle [Free Ends] Red Part 2540 Element 4140585 or 254021 ×1
  • Plate Special 1 x 2 with Pin Hole on Top Red Part 11458 Element 6099736 ×8
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×1
  • Technic Axle Connector with Axle Hole [Reinforced] Red Part 42135 Element 6344178 ×2
  • Technic Axle and Pin Connector Angled #2 - 180° Red Part 32034 Element 6351572 or 4234429 ×2
  • Technic Bush Red Part 3713 Element 6271820 or 4227155 1 spare in the box ×5
  • Technic Pin Connector Hub with 1 Axle Red Part 22961 Element 6167939 ×4
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×2
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×4
  • Tile 2 x 4 with Groove Red Part 87079 Element 4560179 ×3
  • Wedge Plate 2 x 4 Red Part 51739 Element 6023770 ×1
  • Wedge Plate 2 x 4 27° Left Red Part 65429 Element 6286516 ×1
  • Wedge Plate 2 x 4 27° Right Red Part 65426 Element 6286513 ×1
  • Wedge Plate 3 x 2 Left Red Part 43723 Element 4372321 or 4180533 ×1
  • Wedge Plate 3 x 2 Right Red Part 43722 Element 4372221 or 4180504 ×1
  • Wedge Plate 4 x 2 Left Red Part 41770 Element 4161329 ×1
  • Wedge Plate 4 x 2 Right Red Part 41769 Element 4160866 ×1
  • Wheel Arch, Mudguard, 1 1/2 x 6 x 1 [Arch Extended] Red Part 62361 Element 6476008 or 6321760 ×2

Dark Bluish Gray 56 pieces

  • Brick Special 1 x 2 with Grille Dark Bluish Gray Part 2877 Element 4210636 ×5
  • Launcher, Brick Special 1 x 4 Spring Shooter with Light Bluish Gray Top Dark Bluish Gray Part 15400 Element 6324200 or 6048898 ×2
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 Also in Black ×9
  • Plate 2 x 12 Dark Bluish Gray Part 2445 Element 4211067 ×2
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×4
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Bluish Gray Part 4032a Element 4211042 ×1
  • Plate Special 1 x 2 Rounded with 2 Open Studs Dark Bluish Gray Part 35480 Element 6221607 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Bluish Gray Part 2540 Element 4210660 ×2
  • Pneumatic Hose Connector with Axle Connector Dark Bluish Gray Part 99021 Element 6265669 or 6020189 ×2
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×2
  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×2
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Dark Bluish Gray Part 11214 Element 6015356 ×2
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Dark Bluish Gray Part 60483 Element 6265093 or 6006141 ×2
  • Technic Beam 1 x 2 Thin Dark Bluish Gray Part 41677 Element 6338422 or 4210980 ×2
  • Technic Brick 1 x 14 [13 Pin Holes] Dark Bluish Gray Part 32018 Element 4211137 ×2
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Dark Bluish Gray Part 32064a Element 6178919 or 4210935 ×2
  • Technic Brick 1 x 2 with Hole and Dual Beam Extensions Dark Bluish Gray Part 85943 Element 6324639 or 4547958 ×1
  • Tile Round 1 x 1 Dark Bluish Gray Part 98138 Element 6284596 or 6222416 1 spare in the box ×2
  • Tile Round 2 x 2 with Bottom Stud Holder Dark Bluish Gray Part 14769 Element 6056296 or 4620079 ×1
  • Tile Special 1 x 1 with Clip with Rounded Edges Dark Bluish Gray Part 15712 Element 6344022 or 6071226 ×8

Light Bluish Gray 52 pieces

  • Bracket 1 x 1 - 1 x 1 Light Bluish Gray Part 36841 Element 6248078 or 6227012 ×2
  • Bracket 1 x 2 - 2 x 2 Inverted Light Bluish Gray Part 99207 Element 4654580 ×6
  • Bracket 3 x 2 x 1 1/3 with Bottom Stud Holder Light Bluish Gray Part 73562 Element 6347992 ×2
  • Brick Curved Inverted 2 x 2 x 2/3 Light Bluish Gray Part 32803 Element 6185676 ×1
  • Brick Sloped 30° 1 x 2 x 2/3 Light Bluish Gray Part 85984 Element 4568637 ×4
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Light Bluish Gray Part 73983 Element 6102769 or 4219256 ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×4
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×4
  • Plate 4 x 4 Light Bluish Gray Part 3031 Element 4243797 or 4211403 ×2
  • Plate 4 x 8 Light Bluish Gray Part 3035 Element 4211407 ×1
  • Plate Special 1 x 2 with Door Rail Light Bluish Gray Part 32028 Element 4211568 ×2
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Light Bluish Gray Part 60478 Element 4515369 ×2
  • Plate Special 1 x 2 with Pin Hole Underneath Light Bluish Gray Part 18677 Element 6168633 or 6089147 ×2
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×1
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×2
  • Technic Beam 3 x 3 L-Shape with Quarter Ellipse Thin Light Bluish Gray Part 32249 Element 6590052 or 6336743 ×2
  • Technic Beam 3 x 3 T-Shape Thick Light Bluish Gray Part 60484 Element 4552348 or 4535772 ×2
  • Technic Brick 1 x 12 [11 Pin Holes] Light Bluish Gray Part 3895 Element 4211860 ×2
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×2
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×2
  • Technic Shock Absorber 6.5L with Soft Spring, Standard Coil [Complete Assembly] Light Bluish Gray Part 76138 Element 6027565 or 4265688 ×1
  • Tile Round 2 x 2 with Bottom Stud Holder Light Bluish Gray Part 14769 Element 6052200 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 Also in Flat Silver ×2
  • Tile Special 2 x 2 Inverted Light Bluish Gray Part 11203 Element 6132886 ×1

Pearl Gold 52 pieces

  • Arm Mechanical with Clip [Thick Support] Pearl Gold Part 98313 Element 6262192 or 6006741 ×2
  • Bar 6L with Stop Ring Pearl Gold Part 63965 Element 6170470 or 6081992 ×1
  • Chain 6L [5 Links] Pearl Gold Part 92338 Element 6323688 or 4600501 ×1
  • Plate 1 x 1 Pearl Gold Part 3024 Element 6069887 1 spare in the box ×1
  • Plate Round 1 x 1 with Solid Stud Pearl Gold Part 6141 Element 4523159 2 spares in the box ×31
  • Tile Round 2 x 2 with 'Ninjago 10 Years' Print Pearl Gold Part 14769pr1174 Element 6321313 ×1
  • Tile Special 1 x 1 with Clip with Rounded Edges Pearl Gold Part 15712 Element 6262138 or 6071259 ×1
  • Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] Pearl Gold Part 21459 Element 6116596 2 spares in the box ×6
  • Weapon Sword, Big Blade with Bar Pearl Gold Part 98137 Element 6270131 or 4646843 ×2
  • Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes Pearl Gold Part 55981 Element 6109685 or 6054532 ×2
  • Wheel 30.4 x 20 without Pinholes, with Reinforced Rim Pearl Gold Part 56145 Element 4648531 ×4

Reddish Brown 12 pieces

  • Bar 3L Reddish Brown Part 87994 Element 6428805 or 6075208 1 spare in the box ×2
  • Brick Round 1 x 1 Open Stud Reddish Brown Part 3062b Element 4211183 ×2
  • Brick Special 1 x 2 Palisade [aka Log] Reddish Brown Part 30136 Element 4211180 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Reddish Brown Part 4032a Element 4211159 ×2
  • Plate Special 1 x 2 Rounded with 2 Open Studs Reddish Brown Part 35480 Element 6248944 ×4

Blue 10 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2
  • Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot Blue Part 42924 Element 6299413 ×8

White 10 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted White Part 99780 Element 6548278 or 6070698 ×8
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×2

Yellow 9 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Yellow Part 11477 Element 6029947 ×1
  • Plate 1 x 8 Yellow Part 3460 Element 346024 ×2
  • Technic Axle 7 Yellow Part 44294 Element 6130009 ×2
  • Technic Axle Connector Smooth [with x Hole + Orientation] Yellow Part 59443 Element 4519010 ×2
  • Technic Beam 1 x 3 Thin Yellow Part 6632 Element 6344174 or 4107823 ×2

Orange 7 pieces

  • Brick 2 x 3 Orange Part 3002 Element 4153826 or 4125971 ×2
  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×1
  • Plate 1 x 1 Orange Part 3024 Element 4524929 or 4203454 1 spare in the box ×2
  • Plate Round 1 x 1 with Solid Stud Orange Part 6141 Element 4157103 1 spare in the box ×2

Tan 5 pieces

  • Plate 2 x 6 Tan Part 3795 Element 4113993 or 379505 ×4
  • Technic Pin 3/4 Tan Part 32002 Element 6663097 or 6013938 1 spare in the box ×1

Trans-Red 5 pieces

  • Bar 4L (Lightsaber Blade / Wand) Trans-Red Part 30374 Element 6507880 or 6167284 ×1
  • Tile Round 1 x 1 Trans-Red Part 98138 Element 6514189 or 6258607 1 spare in the box ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Trans-Red Part 2412b Element 6250158 or 4190187 ×2

Flat Silver 4 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Flat Silver Part 2412b Element 4619636 Also in Light Bluish Gray ×1
  • Weapon Axe Head, Clip-on (Viking) [Thick Clip] Flat Silver Part 53454 Element 6363145 or 6292957 ×1
  • Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] Flat Silver Part 21459 Element 6116593 1 spare in the box ×2

Dark Purple 3 pieces

  • Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no stud Dark Purple Part 28192 Element 6166863 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Purple Part 4032a Element 6030534 ×1

Trans-Orange 3 pieces

  • Projectile, Spring Shooter Ammunition 8L Bar Trans-Orange Part 15303 Element 6296380 or 6072635 ×3

Trans-Yellow 3 pieces

  • Tile 1 x 2 with Groove Trans-Yellow Part 3069b Element 6514221 or 6251291 ×3

Pearl Titanium 1 piece

  • Bar 1L with Top Stud and Two Side Studs Pearl Titanium Part 92690 Element 6158415 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 71737-1 [No Color/Any Color] Part 71544 Element 6321418 ×1

Minifigures 5 figures

  • Cole - Gold Minifigure, checked as a whole figure ×1
  • Nindroid with Dual Sided Head, Shoulder Armor (Legacy), Short Legs, Shoulder Harness Minifigure, checked as a whole figure ×1
  • Nindroid with Dual Sided Head (Legacy) -neck Bracket Minifigure, checked as a whole figure ×1
  • Jay in Rebooted Outfit (Legacy) - MASTER Torso Minifigure, checked as a whole figure ×1
  • Kai with Hair (Legacy) 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.

We value your privacy

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