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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.

Truck

Checking

8436 Truck

1,032 pieces in 169 part and color combinations.

LEGO counts 1,027 pieces. This inventory comes from a separate parts catalog and lists 1,032; 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.

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.

9 more look-alike pairs
  • Technic Beam 1 x 3 Thin Black ×6 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 4 Thin Black ×6 Dark Bluish Gray ×6 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 5 Thin Black ×2 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 7 Bent (4 - 4) Thick Black ×2 Dark Bluish Gray ×6 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 7 Thick Black ×2 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
  • Technic Beam 2 x 4 L-Shape Thick Black ×12 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
  • Technic Pin Connector Perpendicular Long Black ×2 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
  • Technic Pin Connector Round [No Slot] Black ×6 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black ×16 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
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Piece checklist

Black 520 pieces

  • Axle Hose, Soft 11L Black Part 32199 Element 4234438 or 4121646 ×2
  • Fairing 1 x 4 Side Flaring Intake with Two Pins Black Part 30647 Element 4229602 or 4153013 ×2
  • Hose, Pneumatic 4mm D. 13.75L / 11cm Black Part 5102c13.75 ×1
  • Hose, Pneumatic 4mm D. 17.5L / 14cm Black Part 5102c17.5 ×1
  • Hose, Pneumatic 4mm D. 22.5L / 18cm Black Part 5102c22.5 ×1
  • Hose, Pneumatic 4mm D. 6.25L / 5cm Black Part 5102c06.25 ×1
  • Plate 1 x 6 Black Part 3666 Element 366626 ×1
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Black Part 6553 Element 4107765 or 655326 ×4
  • 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 ×36
  • Technic Axle 4 Black Part 3705 Element 370526 ×31
  • Technic Axle 6 Black Part 3706 Element 370626 ×9
  • Technic Axle 8 Black Part 3707 Element 370726 ×3
  • Technic Axle Connector Ridged [with x Hole x Orientation] Black Part 6538b Element 4113805 or 4107083 Also in Dark Bluish Gray ×7
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×2
  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×7
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 Also in Dark Bluish Gray ×10
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Black Part 42003 Element 6273708 or 4200326 Also in Dark Bluish Gray ×4
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Black Part 32184 Element 6276951 or 4121667 ×3
  • Technic Axle and Pin Connector Perpendicular Double Black Part 32291 Element 6280394 or 4140430 Also in Dark Bluish Gray ×5
  • Technic Axle and Pin Connector Perpendicular Double Split Black Part 41678 Element 4162857 Also in Dark Bluish Gray ×15
  • Technic Beam 1 x 11 Thick Black Part 32525 Element 6029578 or 4534909 Also in Dark Bluish Gray ×4
  • Technic Beam 1 x 11.5 Double Bent Thick Black Part 32009 Element 6271152 or 4111998 ×2
  • Technic Beam 1 x 15 Thick Black Part 32278 Element 4542573 or 4128603 ×8
  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 ×9
  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 Also in Dark Bluish Gray ×6
  • Technic Beam 1 x 4 Thin Black Part 32449 Element 6327548 or 4142236 Also in Dark Bluish Gray ×6
  • Technic Beam 1 x 4 Thin with Stud Connector Black Part 2825 Element 6331570 or 4107136 ×2
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×2
  • Technic Beam 1 x 5 Thin Black Part 32017 Element 6114935 or 4503423 Also in Dark Bluish Gray ×2
  • Technic Beam 1 x 6 Thin Black Part 32063 Element 6163980 or 4114634 ×2
  • Technic Beam 1 x 7 Bent (4 - 4) Thick Black Part 32348 Element 6278125 or 4128593 Also in Dark Bluish Gray ×2
  • Technic Beam 1 x 7 Thick Black Part 32524 Element 4495935 or 4155458 Also in Dark Bluish Gray ×2
  • Technic Beam 1 x 7 Thin Black Part 32065 Element 6271573 or 6253293 ×4
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Black Part 32271 Element 6276835 or 4140327 ×10
  • Technic Beam 1 x 9 Thick Black Part 40490 Element 4645732 or 4542788 ×7
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 Also in Dark Bluish Gray ×12
  • Technic Beam 3 x 5 L-Shape Thick Black Part 32526 Element 4142823 or 3252626 ×8
  • Technic Bush Black Part 3713 Element 6332148 or 6210506 1 spare in the box ×2
  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×2
  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening] Black Part 32269 Element 4177430 ×3
  • Technic Gear 8 Tooth Black Part 3647 Element 4120181 1 spare in the box ×1
  • Technic Gear Rack 1 x 4 Black Part 3743 Element 6457282 or 4205760 ×1
  • Technic Panel Fairing # 5 Small Short, Large Hole, Side A Black Part 32527 Element 4143417 ×1
  • Technic Panel Fairing # 6 Small Short, Large Hole, Side B Black Part 32528 Element 4143419 ×1
  • Technic Pin Connector Perpendicular Long Black Part 32557 Element 4143466 Also in Dark Bluish Gray ×2
  • Technic Pin Connector Round [No Slot] Black Part 75535 Element 75619 Also in Dark Bluish Gray ×6
  • Technic Pin Double with Axle Hole Black Part 32138 Element 4130597 or 4119589 ×4
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 Also in Dark Bluish Gray ×16
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 1 spare in the box ×55
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 3 spares in the box ×183
  • Tyre 62.4 x 20 Black Part 32019 Element 6411639 or 4547373 ×6

Light Bluish Gray 238 pieces

  • Hose, Pneumatic 4mm D. 38.75L / 31cm Light Bluish Gray Part 5102c38.75 ×1
  • Hose, Pneumatic 4mm D. 43.75L / 35cm Light Bluish Gray Part 5102c43.75 ×1
  • Hose, Pneumatic 4mm D. 6.25L / 5cm Light Bluish Gray Part 5102c06.25 ×1
  • Large Figure Shield Holder with Technic Axle Light Bluish Gray Part 47474 Element 4244143 or 4220895 ×4
  • Large Figure Weapon, Claw Hook with Axle Light Bluish Gray Part 32551 Element 4234608 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×4
  • Pneumatic T-Piece (T Bar) [New Style] Light Bluish Gray Part 4697b Element 4211508 1 spare in the box ×1
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×25
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×18
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×3
  • Technic Axle Connector Ridged [with x Hole x Orientation] Light Bluish Gray Part 6538b Element 4211543 ×5
  • Technic Axle Connector with Axle Hole Light Bluish Gray Part 32039 Element 4211553 ×2
  • Technic Axle and Pin Connector Angled #1 Light Bluish Gray Part 32013 Element 6296859 or 4211550 ×4
  • Technic Axle and Pin Connector Angled #2 - 180° Light Bluish Gray Part 32034 Element 6346487 or 4211567 ×4
  • Technic Axle and Pin Connector Perpendicular Light Bluish Gray Part 6536 Element 6261375 or 4211775 ×15
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Light Bluish Gray Part 32184 Element 6276969 or 4211621 ×8
  • Technic Axle and Pin Connector Perpendicular Double Light Bluish Gray Part 32291 Element 6280396 or 4211629 ×8
  • Technic Axle and Pin Connector Perpendicular Double Split Light Bluish Gray Part 41678 Element 4211889 ×2
  • Technic Beam 1 x 11 Thick Light Bluish Gray Part 32525 Element 4611705 or 4534910 ×2
  • Technic Beam 1 x 11.5 Double Bent Thick Light Bluish Gray Part 32009 Element 6271156 or 4234240 ×4
  • Technic Beam 1 x 13 Thick Light Bluish Gray Part 41239 Element 4522934 or 4156299 ×9
  • Technic Beam 1 x 15 Thick Light Bluish Gray Part 32278 Element 4542577 or 4211770 ×2
  • Technic Beam 1 x 2 Thick Light Bluish Gray Part 43857 Element 4211862 ×1
  • Technic Beam 1 x 2 Thin Light Bluish Gray Part 41677 Element 6348143 or 4211741 ×6
  • Technic Beam 1 x 3 Thick Light Bluish Gray Part 32523 Element 4211655 ×3
  • Technic Beam 1 x 3 Thin Light Bluish Gray Part 6632 Element 6360043 or 4211566 ×6
  • Technic Beam 1 x 4 Thin Light Bluish Gray Part 32449 Element 6370947 or 6074036 ×2
  • Technic Beam 1 x 4 Thin with Stud Connector Light Bluish Gray Part 2825 Element 6331574 or 4211561 ×2
  • Technic Beam 1 x 5 Thick Light Bluish Gray Part 32316 Element 4211651 ×2
  • Technic Beam 1 x 6 Thin Light Bluish Gray Part 32063 Element 6170293 or 4211586 ×4
  • Technic Beam 1 x 7 Thick Light Bluish Gray Part 32524 Element 4495930 or 4211665 ×5
  • Technic Beam 1 x 9 Thick Light Bluish Gray Part 40490 Element 6102449 or 4211866 ×2
  • Technic Beam 2 x 4 L-Shape Thick Light Bluish Gray Part 32140 Element 6271831 or 4211610 ×6
  • Technic Beam 3 x 5 L-Shape Thick Light Bluish Gray Part 32526 Element 4211713 ×4
  • Technic Beam 3 x 5 L-Shape with Quarter Ellipse Thin Light Bluish Gray Part 32250 Element 4234247 ×2
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 3 spares in the box ×7
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Bluish Gray Part 32123a 2 spares in the box ×16
  • Technic Engine Connecting Rod Light Bluish Gray Part 2852 Element 6000018 or 4655728 ×6
  • Technic Engine Crankshaft Light Bluish Gray Part 2853 Element 6640384 or 4211609 ×4
  • Technic Engine Cylinder with Side Slots Light Bluish Gray Part 2850a ×6
  • Technic Gear 12 Tooth Bevel Light Bluish Gray Part 6589 Element 6589194 or 4565450 ×4
  • Technic Gear 12 Tooth Double Bevel Light Bluish Gray Part 32270 Element 32270194 or 4211634 ×1
  • Technic Gear 16 Tooth with Round Holes [Old Style] Light Bluish Gray Part 4019 Element 4562487 or 4211563 ×2
  • Technic Pin Connector Block 1 x 5 x 3 Light Bluish Gray Part 32333 Element 6271360 or 4205761 ×2
  • Technic Pin Connector Hub Perpendicular 3L with 4 Pins Light Bluish Gray Part 48989 Element 4225033 ×2
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Light Bluish Gray Part 32054 Element 4211865 ×4
  • Technic Pin Long without Friction Ridges - Single Slot Light Bluish Gray Part 32556a Element 4211709 ×2
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 2 spares in the box ×4
  • Technic Steering Wheel Small (3 Studs Diameter) Light Bluish Gray Part 2819 Element 4580510 or 4211578 ×1
  • Technic Wedge Belt Wheel [aka Pulley] Light Bluish Gray Part 4185 Element 6321743 or 4494222 ×1
  • Technic Worm Gear Light Bluish Gray Part 4716 Element 4211510 ×1
  • Wheel 43.2 x 18 with Extended Axle Stem Light Bluish Gray Part 32020 Element 4496707 or 4179382 ×6

Dark Bluish Gray 91 pieces

  • Pneumatic Switch with Pin Holes Dark Bluish Gray Part 47223a Element 4237158 ×2
  • Technic Axle 3 with Stud Dark Bluish Gray Part 6587 Element 6587199 or 6129590 ×4
  • Technic Axle Connector Ridged [with x Hole x Orientation] Dark Bluish Gray Part 6538b Element 6538199 or 4210672 Also in Black ×4
  • Technic Axle and Pin Connector Perpendicular Dark Bluish Gray Part 6536 Element 6536199 or 6261374 Also in Black ×4
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Dark Bluish Gray Part 42003 Element 6273715 or 4210857 Also in Black ×7
  • Technic Axle and Pin Connector Perpendicular Double Dark Bluish Gray Part 32291 Element 6280395 or 4210655 Also in Black ×4
  • Technic Axle and Pin Connector Perpendicular Double Split Dark Bluish Gray Part 41678 Element 4234599 Also in Black ×6
  • Technic Beam 1 x 11 Thick Dark Bluish Gray Part 32525 Element 4603472 or 4534914 Also in Black ×2
  • Technic Beam 1 x 3 Thin Dark Bluish Gray Part 6632 Element 6632199 or 6364452 Also in Black ×4
  • Technic Beam 1 x 4 Thin Dark Bluish Gray Part 32449 Element 6327561 or 4210749 Also in Black ×6
  • Technic Beam 1 x 5 Thin Dark Bluish Gray Part 32017 Element 32017199 or 6215176 Also in Black ×4
  • Technic Beam 1 x 7 Bent (4 - 4) Thick Dark Bluish Gray Part 32348 Element 32348199 or 6278127 Also in Black ×6
  • Technic Beam 1 x 7 Thick Dark Bluish Gray Part 32524 Element 4495931 or 4210752 Also in Black ×4
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Dark Bluish Gray Part 6629 Element 6279883 or 4210638 ×2
  • Technic Beam 2 x 4 L-Shape Thick Dark Bluish Gray Part 32140 Element 6271830 or 4210667 Also in Black ×4
  • Technic Beam 3 x 3 L-Shape with Quarter Ellipse Thin Dark Bluish Gray Part 32249 Element 6590060 or 6336745 ×4
  • Technic Engine Crankshaft Center Dark Bluish Gray Part 2854 Element 6007058 or 4210987 ×2
  • Technic Gear Differential, 24 -16 Tooth with Clutch on Both Sides Dark Bluish Gray Part 6573 Element 6573199 or 4211023 ×1
  • Technic Pin 3/4 Dark Bluish Gray Part 32002 Element 32002199 or 4211050 3 spares in the box ×14
  • Technic Pin Connector Perpendicular Long Dark Bluish Gray Part 32557 Element 4210756 Also in Black ×2
  • Technic Pin Connector Round [No Slot] Dark Bluish Gray Part 75535 Element 4214919 Also in Black ×2
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Dark Bluish Gray Part 32054 Element 4210674 Also in Black ×2
  • Technic Turntable Large Type 2, 24/56 Tooth with Black Outside Gear Section [Complete Assembly] Dark Bluish Gray Part 50163 Element 4520872 or 4235858 ×1

Blue 70 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×46
  • Technic Beam 1 x 2 Thin Blue Part 41677 Element 6360123 or 4186834 ×2
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 2 spares in the box ×22

Red 61 pieces

  • Support 1 x 1 x 5 1/3 Spiral Staircase Axle Red Part 40244 Element 4234397 ×2
  • Technic Axle Connector Ridged [with x Hole x Orientation] Red Part 6538b Element 4125189 ×2
  • Technic Axle Connector with Axle Hole Red Part 32039 Element 4118897 ×2
  • Technic Axle and Pin Connector Angled #2 - 180° Red Part 32034 Element 6351572 or 4234429 ×2
  • Technic Axle and Pin Connector Angled #5 - 112.5° Red Part 32015 Element 6271348 or 4227544 ×4
  • Technic Axle and Pin Connector Perpendicular Red Part 6536 Element 6261373 or 4188298 ×2
  • Technic Axle and Pin Connector Perpendicular Double Split Red Part 41678 Element 4173975 ×6
  • Technic Beam 1 x 11 Thick Red Part 32525 Element 4562805 or 4534913 ×1
  • Technic Beam 1 x 15 Thick Red Part 32278 Element 4542575 or 4163147 ×1
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Red Part 32271 Element 6276845 or 6188299 ×2
  • Technic Beam 2 x 4 L-Shape Thick Red Part 32140 Element 6271827 or 4141270 ×6
  • Technic Beam 3 x 5 L-Shape Thick Red Part 32526 Element 4143154 ×4
  • Technic Panel Fairing # 1 Large Short, Large Holes, Side A Red Part 32190 Element 4235709 or 4125181 ×1
  • Technic Panel Fairing # 2 Large Short, Large Holes, Side B Red Part 32191 Element 4235710 or 4125182 ×1
  • Technic Panel Fairing # 3 Large Long, Large Holes, Side A Red Part 32188 Element 4234436 or 4125179 ×2
  • Technic Panel Fairing # 4 Large Long, Large Holes, Side B Red Part 32189 Element 4234437 or 4125180 ×2
  • Technic Panel Fairing # 5 Small Short, Large Hole, Side A Red Part 32527 Element 4143152 ×2
  • Technic Panel Fairing # 6 Small Short, Large Hole, Side B Red Part 32528 Element 4143150 ×2
  • Technic Panel Fairing # 7 Small Long, Large Hole, Side A Red Part 32534 Element 4193846 ×1
  • Technic Panel Fairing # 8 Small Long, Large Hole, Side B Red Part 32535 Element 4193845 or 4158886 ×1
  • Technic Panel Fairing #22 Large Short, Small Hole, Side A Red Part 44352 Element 4276978 or 4205040 ×1
  • Technic Panel Fairing #23 Large Short, Small Hole, Side B Red Part 44353 Element 4277113 or 4205041 ×1
  • Technic Pin Connector Round [No Slot] Red Part 75535 Element 75854 ×4
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Red Part 32054 Element 4140806 or 4125198 ×9

Tan 18 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×12
  • Technic Beam 3 x 5 L-Shape Thick Tan Part 32526 Element 4234421 or 3252605 ×4
  • Technic Pin Connector Round [No Slot] Tan Part 75535 Element 4235599 or 4129557 ×2

Yellow 12 pieces

  • Pneumatic Cylinder with 2 Inlets and Rounded End Medium (48mm) Yellow Part 47225 Element 4563144 or 4205293 ×2
  • Pneumatic Pump New Style with Black Top Yellow Part 2797c02 Element 4563134 or 74720 ×1
  • Technic Engine Piston Round Yellow Part 2851 Element 4112203 or 285124 ×6
  • Technic Pin Connector Plate with One Hole (Single on Bottom) Yellow Part 32529 Element 4237145 ×2
  • Tile 1 x 4 with Groove Yellow Part 2431 Element 243124 ×1

Trans-Clear 10 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 2 spares in the box ×8
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Trans-Clear Part 2654 Element 6581772 or 6163901 ×2

Trans-Orange 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 2 spares in the box ×4

Trans-Red 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×4

Trans-Yellow 4 pieces

  • Brick Round 2 x 2 with Axle Hole Trans-Yellow Part 3941 Element 6514285 or 6273155 ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Trans-Yellow Part 2654 Element 6581773 or 6171728 ×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.