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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.

Porsche GT4 e-Performance

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42176 Porsche GT4 e-Performance

834 pieces in 165 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.

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.

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Piece checklist

Technic Pins 350 pieces

  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×2
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole] Black Part 65304 Element 6321745 ×14
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 2 spares in the box ×139
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×45
  • Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot Blue Part 42924 Element 6299413 ×98
  • Technic Pin 1/2 with Friction Dark Bluish Gray Part 89678 Element 6395635 2 spares in the box ×16
  • Technic Pin Long 3l with Stop and Hole Light Bluish Gray Part 77765 Element 6338962 ×6
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole] Orange Part 65304 Element 6347790 ×12
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Red Part 11214 Element 6209519 ×8
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×4
  • Technic Axle Pin 3L without Friction Ridges and 2L Axle White Part 65249 Element 6289797 ×2
  • Technic Pin without Friction Ridges Lengthwise Yellow Part 3673 Element 6331822 1 spare in the box ×4

Technic Connectors 159 pieces

  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×2
  • Technic Axle and Pin Connector Angled #3 - 157.5° Black Part 32016 Element 6261386 or 4107082 ×4
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 ×8
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Black Part 42003 Element 6273708 or 4200326 Also in Dark Bluish Gray ×2
  • Technic Axle and Pin Connector Perpendicular Split Black Part 92907 Element 6279021 or 4610371 ×2
  • Technic Axle and Pin Connector Perpendicular Triple Black Part 63869 Element 6362991 or 6007966 ×3
  • Technic Driving Ring Connector Smooth [2 rounded and 2 flat side walls] Black Part 42195 Element 6286381 ×1
  • Technic Pin Connector 3L with 2 Pins and Center Hole [Pin Ridges Across Part] Black Part 46189 Element 6325521 or 6267991 ×8
  • Technic Pin Connector Hub with 1 Axle Black Part 22961 Element 6253260 ×4
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] Black Part 65487 Element 6282140 ×2
  • Technic Pin Connector Hub with 2 Perpendicular Axles Black Part 10197 Element 6099801 or 6098801 Also in Dark Bluish Gray ×4
  • Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Small Squared Pin Holes] Black Part 44874 Element 6366229 ×5
  • Technic Pin Connector Perpendicular 2 x 4 Bent - Beam with 90 Hole Ø 4.8 Black Part 11455 Element 6172966 or 6019986 ×2
  • Technic Pin Connector Round 1L [Beam] Black Part 18654 Element 6121485 1 spare in the box ×15
  • Technic Pin Connector Round [Slotted] Black Part 62462 Element 6173119 or 4526982 ×4
  • Technic Axle and Pin Connector Angled #1 Blue Part 32013 Element 6332570 or 4107797 ×2
  • Technic Axle and Pin Connector Angled #2 - 180° Blue Part 32034 Element 6484676 or 4107798 ×2
  • Technic Axle and Pin Connector Angled #3 - 157.5° Blue Part 32016 Element 6261397 or 6177396 ×2
  • Technic Axle and Pin Connector Angled #5 - 112.5° Blue Part 32015 Element 6331024 or 6189196 ×2
  • Technic Axle and Pin Connector Perpendicular Blue Part 6536 Element 6261383 or 6178359 ×16
  • Technic Driving Ring Connector Smooth [2 rounded and 2 flat side walls] Blue Part 42195 Element 6488702 ×1
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] Blue Part 65487 Element 6282145 ×2
  • Technic Pin Connector Round 1L [Beam] Blue Part 18654 Element 6392879 1 spare in the box ×6
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Dark Bluish Gray Part 42003 Element 6273715 or 4210857 Also in Black ×2
  • Technic Pin Connector Hub with 2 Perpendicular Axles Dark Bluish Gray Part 10197 Element 6005331 Also in Black ×4
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Light Bluish Gray Part 6553 Element 4211536 ×2
  • Technic Axle and Pin Connector Angled #1 Light Bluish Gray Part 32013 Element 6296859 or 4211550 ×4
  • Technic Axle and Pin Connector Perpendicular Light Bluish Gray Part 6536 Element 6261375 or 4211775 ×4
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Light Bluish Gray Part 32184 Element 6276969 or 4211621 ×1
  • Technic Axle and Pin Connector Perpendicular Split Light Bluish Gray Part 92907 Element 6279023 or 4630114 ×2
  • Technic Pin Connector Hub Perpendicular 3 x 3 Bent with 4 Pins (Pin Ridges Along Part) Light Bluish Gray Part 49130 Element 6313453 ×2
  • Technic Pin Connector Hub Perpendicular 3L with 4 Pins (Squared Holes) Light Bluish Gray Part 65489 Element 6282158 ×2
  • Technic Pin Connector Perpendicular 2 x 2 Bent Light Bluish Gray Part 44809 Element 4211880 ×2
  • Technic Axle and Pin Connector Perpendicular Lime Part 6536 Element 6261378 or 6149996 ×2
  • Technic Driving Ring Connector Smooth [2 rounded and 2 flat side walls] Lime Part 42195 Element 6335185 ×2
  • Technic Pin Connector Round 1L [Beam] Orange Part 18654 Element 6390380 1 spare in the box ×1
  • Technic Pin Connector Round 1L [Beam] Pearl Gold Part 18654 Element 6256803 1 spare in the box ×1
  • Technic Axle Connector Smooth [with x Hole + Orientation] Red Part 59443 Element 4513174 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Red Part 32184 Element 6276963 or 4128598 ×4
  • Technic Axle and Pin Connector Perpendicular Triple Red Part 63869 Element 6362998 or 6334502 ×1
  • Technic Pin Connector Hub with 1 Axle Red Part 22961 Element 6167939 ×2
  • Technic Pin Connector Perpendicular 2 x 2 Bent Red Part 44809 Element 6008527 ×6
  • Technic Pin Connector Round [Slotted] Red Part 62462 Element 6173126 or 4526984 ×2
  • Technic Axle Connector with Axle Hole [Reinforced] White Part 42135 Element 6375684 ×1
  • Technic Axle and Pin Connector Angled #2 - 180° White Part 32034 Element 6271870 or 4125554 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes White Part 42003 Element 6330960 or 6254109 ×1
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole White Part 32184 Element 6276981 or 6114940 ×2
  • Technic Axle and Pin Connector Perpendicular Double White Part 32291 Element 6292916 or 6254266 ×2
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] White Part 65487 Element 6282148 ×2
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] Yellow Part 65487 Element 6282151 ×2

Technic Beams 142 pieces

  • Technic Beam 1 x 11.5 Double Bent Thick Black Part 32009 Element 6271152 or 4111998 ×4
  • Technic Beam 1 x 15 Thick Black Part 32278 Element 4542573 or 4128603 ×2
  • Technic Beam 1 x 15 Thick with Alternating Holes Black Part 71710 Element 6321716 ×4
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black Part 60483 Element 6265091 or 6006140 ×2
  • Technic Beam 1 x 2 Thin Black Part 41677 Element 6338428 or 4167726 ×2
  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 ×6
  • Technic Beam 1 x 4 Thin Black Part 32449 Element 6327548 or 4142236 ×2
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×3
  • 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 ×2
  • Technic Beam 2 x 3 L-Shape with Quarter Ellipse Thick Black Part 71708 Element 6326047 ×6
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 ×9
  • Technic Beam 2 x 5 L-Shape with Quarter Ellipse Thick Black Part 80286 Element 6407066 or 6378466 ×8
  • Technic Beam 3 x 5 L-Shape Thick Black Part 32526 Element 4142823 or 3252626 ×4
  • Technic Beam 3 x 5 L-Shape Thick with Alternating Holes Black Part 2477 Element 6408182 ×12
  • Technic Beam 1 x 13 Thick Blue Part 41239 Element 6302337 or 6173125 ×2
  • Technic Beam 1 x 15 Thick Blue Part 32278 Element 6057799 or 4144299 ×1
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Blue Part 60483 Element 6392955 ×6
  • Technic Beam 1 x 3 Thick Blue Part 32523 Element 4509376 or 4144284 ×1
  • Technic Beam 1 x 3 Thin Blue Part 6632 Element 6344176 or 4107829 ×4
  • Technic Beam 1 x 4 Thin Blue Part 32449 Element 6488701 or 4144283 ×2
  • Technic Beam 1 x 5 Thick Blue Part 32316 Element 4142134 or 4128591 ×5
  • Technic Beam 1 x 7 Thick Blue Part 32524 Element 4506043 or 4144285 ×2
  • Technic Beam 1 x 7 Thick with Alternating Holes Dark Bluish Gray Part 2391 Element 6432397 ×1
  • Technic Connector Beam 3 x 3 Dark Bluish Gray Part 39793 Element 6317653 ×1
  • Technic Beam 1 x 11 Thick with Alternating Holes Light Bluish Gray Part 73507 Element 6362250 ×9
  • Technic Beam 1 x 15 Thick Light Bluish Gray Part 32278 Element 4542577 or 4211770 ×1
  • Technic Beam 1 x 5 Thick Light Bluish Gray Part 32316 Element 4211651 ×3
  • Technic Beam 1 x 5 Thin with Axle Holes on Ends Light Bluish Gray Part 11478 Element 6328063 or 6029206 ×1
  • Technic Beam 2 x 3 L-Shape with Quarter Ellipse Thick Light Bluish Gray Part 71708 Element 6361459 ×2
  • Technic Beam 2 x 4 L-Shape Thick Light Bluish Gray Part 32140 Element 6271831 or 4211610 ×6
  • Technic Beam 3 x 3 T-Shape Thick Light Bluish Gray Part 60484 Element 4552348 or 4535772 ×4
  • Technic Beam 3 x 5 L-Shape Thick Light Bluish Gray Part 32526 Element 4211713 ×2
  • Technic Beam 1 x 3 Thick Lime Part 32523 Element 6170474 or 4265684 ×2
  • Technic Beam 1 x 6 Thin Red Part 32063 Element 6398773 or 4174808 ×2
  • Technic Beam 2 x 4 L-Shape Thick Red Part 32140 Element 6271827 or 4141270 ×2
  • Technic Beam 1 x 15 Thick with Alternating Holes White Part 71710 Element 6432401 ×1
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole White Part 60483 Element 6265135 or 6177268 ×1
  • Technic Beam 1 x 2 Thick Yellow Part 43857 Element 4187122 ×1
  • Technic Beam 1 x 3 Thin Yellow Part 6632 Element 6344174 or 4107823 ×2
  • Technic Beam 3 x 3 L-Shape Thin Yellow Part 32056 Element 6271812 or 4112289 ×8

Technic Axles 72 pieces

  • Technic Axle 4 Black Part 3705 Element 370526 ×4
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×4
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×2
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×28
  • Technic Axle 4 Red Part 3705 Element 6129995 or 4265797 ×2
  • Technic Axle 6 Red Part 3706 Element 6130002 or 4191526 ×1
  • Technic Axle 3 with Stop Reddish Brown Part 24316 Element 6135494 ×8
  • Technic Axle 4 with Centre Stop Tan Part 99008 Element 4666999 ×1
  • Technic Axle 3 Yellow Part 4519 Element 6130007 ×20
  • Technic Axle 7 Yellow Part 44294 Element 6130009 ×1
  • Technic Axle 9 Yellow Part 60485 Element 6130010 ×1

Technic Panels 56 pieces

  • Technic Panel 3 x 2 x 5 Black Part 80285 Element 6399568 ×3
  • Technic Panel Car Mudguard Arched 11 x 5 x 2, Arched Top Black Part 3538 Element 6484677 ×4
  • Technic Panel Curved 3 x 13 Black Part 18944 Element 6208345 or 6162372 ×2
  • Technic Panel Curved 3 x 13 x 2 Tapered, Left #52 Black Part 4527 Element 6640365 or 6452847 ×1
  • Technic Panel Curved 3 x 13 x 2 Tapered, Right #53 Black Part 5426 Element 6550058 or 6470744 ×1
  • Technic Panel Curved 3 x 9 Black Part 5427 Element 6470746 ×4
  • Technic Panel Curved 7 x 3 Inverted Black Part 4500 Element 6513898 or 6452873 ×2
  • Technic Panel Curved 7 x 3 with 2 Pin Holes through Panel Surface Black Part 24119 Element 6150082 ×3
  • Technic Panel Fairing #1 Small Smooth Short, Side A Black Part 87080 Element 4566251 ×2
  • Technic Panel Fairing #10 Medium Triangle Smooth Black Part 2403 Element 6510087 or 6426604 ×1
  • Technic Panel Fairing #2 Small Smooth Short, Side B Black Part 87086 Element 4566249 ×2
  • Technic Panel Fairing #21 5L Small Smooth, Side B Black Part 11946 Element 6316923 or 6023036 ×5
  • Technic Panel Fairing #22 5L Small Smooth, Side A Black Part 11947 Element 6319983 or 6022761 ×5
  • Technic Panel Fairing #7 3L Very Small Smooth, Side A Black Part 2387 Element 6510991 or 6426589 ×2
  • Technic Panel Fairing #8 3L Very Small Smooth, Side B Black Part 2389 Element 6513874 or 6426590 ×2
  • Technic Panel Fairing #9 Medium Triangle Smooth Black Part 2395 Element 6510081 or 6426603 ×1
  • Technic Panel Fairing 2 x 3 x 1 Black Part 71682 Element 6331026 ×2
  • Technic Panel Triangle 5 x 4 Left Black Part 80278 Element 6400130 ×1
  • Technic Panel Triangle 5 x 4 Right Black Part 80274 Element 6400129 ×1
  • Technic Panel Curved and Bent 6 x 3 Blue Part 24116 Element 6268009 or 6133684 ×2
  • Technic Panel Fairing #21 5L Small Smooth, Side B Blue Part 11946 Element 6352643 or 6330924 ×1
  • Technic Panel Fairing #22 5L Small Smooth, Side A Blue Part 11947 Element 6352661 or 6330928 ×1
  • Technic Panel Fairing 2 x 1 x 1 Blue Part 89679 Element 6385238 ×1
  • Technic Panel Fairing 2 x 3 x 1 Blue Part 71682 Element 6331025 ×3
  • Technic Panel Fairing 2 x 3 x 1 #3 Angled 157.5° Blue Part 2457 Element 6510097 or 6484678 ×2
  • Technic Panel Round Corner 5 x 3 x 2 Left with Black headlight Print Trans-Clear Part 2438pr0003 Element 6463210 ×1
  • Technic Panel Round Corner 5 x 3 x 2 Right with Black Headlight Print Trans-Clear Part 2442pr0003 Element 6565362 or 6463212 ×1

Technic Bushes 14 pieces

  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×4
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×4
  • Technic Bush Red Part 3713 Element 6271820 or 4227155 1 spare in the box ×6

Technic Steering, Suspension and Engine 9 pieces

  • Technic Steering Wheel Hub Holder with 2 Pin Holes and 2 Axle Holes, No Slots Black Part 65766 Element 6352693 ×2
  • Technic Steering Wheel Pilot's Yoke [Closed Top] Black Part 49151 Element 6378464 ×1
  • Technic Steering Hub for Portal Axle Dark Bluish Gray Part 92909 Element 4610378 ×4
  • Technic Steering Portal with 2 Pin Holes Light Bluish Gray Part 11950 Element 6169984 or 6022949 ×2

Wheels and Tyres 8 pieces

  • Tyre 56 x 28 ZR Street Black Part 41897 Element 6518574 or 6035364 ×4
  • Wheel 43.2 x 26 Technic Racing Small with 6 Pinholes Black Part 56908 Element 6276858 or 6078892 ×4

Electronics 6 pieces

  • Battery Pack, Rechargeable for 113926c01, Pin Holes Light Bluish Gray Part 113558 Element 6568584 or 6549588 ×1
  • Hub, Powered Up 16 x 9 x 6 with 3 Motors, 6 Lights, No Ports, Pin Holes Light Bluish Gray Part 113926c01 Element 6549603 ×1
  • Cable, Fiber Optics, Wide 10L / 8.0cm Trans-Clear Part 40002c10 Element 6454803 1 spare in the box ×2
  • Cable, Fiber Optics, Wide 28L / 22.4cm Trans-Clear Part 40002c28 Element 6496831 ×2

Tiles Round and Curved 6 pieces

  • Tile Round 1 x 1 Orange Part 98138 Element 6284582 or 6009459 1 spare in the box ×4
  • Tile Round 1 x 1 Trans-Red Part 98138 Element 6514189 or 6258607 1 spare in the box ×2

Tubes and Hoses 4 pieces

  • Axle Hose, Soft 11L Black Part 32199 Element 4234438 or 4121646 ×1
  • Hose, Ribbed 7mm D. 12L / 9.6cm Black Part 78c12 Element 6506605 or 6253280 ×2
  • Axle Hose, Soft 16L Medium Azure Part 32202 Element 6484393 ×1

Bars, Ladders and Fences 2 pieces

  • Bar 3L Light Bluish Gray Part 87994 Element 6093527 or 6064033 1 spare in the box ×2

Technic Gears 2 pieces

  • Technic Gear Rack 1 x 7 with Axle and Pin Holes Black Part 87761 Element 6327430 or 4562009 ×1
  • Technic Gear 12 Tooth with Axle Hole Blue Part 69778 Element 6396479 ×1

Technic Special 2 pieces

  • Technic Ball Joint Black Part 32474 Element 4290713 or 4143539 ×2

Stickers 1 piece

  • Sticker Sheet for Set 42176-1 [No Color/Any Color] Part 10105332 Element 6462845 ×1

Technic Beams Special 1 piece

  • Technic Beam Frame 7 x 11 White Part 39794 Element 6247435 ×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

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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.

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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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