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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.

My First Build

Checking

4631 My First Build

63 pieces in 50 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

Duplo, Quatro and Primo 58 pieces

  • Duplo Dish with Grill, Sausages and Chicken Drumstick Print Black Part 31333pr0004 Element 6034965 or 4581591 ×1
  • Duplo Hose with Rubber End and Light Bluish Gray Nozzle Black Part 58498c01 Element 4548111 ×1
  • Duplo Brick 1 x 2 x 2 with Dog and Food Bowl Print Blue Part 4066pr0240 Element 6040312 or 4582271 ×1
  • Duplo Brick 2 x 2 Blue Part 3437 Element 343723 ×2
  • Duplo Brick 2 x 3 with Curved Top Blue Part 2302 Element 230273 or 230223 ×2
  • Duplo Car Base 2 x 6 with Yellow Wheels and Open Hitch End Blue Part 2312c01 Element 6006228 or 4592300 ×1
  • Duplo Brick 2 x 2 Bright Green Part 3437 Element 4583789 or 4168579 ×2
  • Duplo Brick 2 x 3 with Curved Top Bright Green Part 2302 Element 4170797 ×1
  • Duplo Brick 2 x 4 Bright Green Part 3011 Element 4513084 or 4290085 ×1
  • Duplo Plant, Flower with 1 Top Stud Bright Green Part 6510 Element 4121575 ×1
  • Duplo Plate 2 x 4 Bright Green Part 40666 Element 4170795 ×1
  • Duplo Plate 2 x 8 Bright Green Part 44524 Element 4247780 ×1
  • Duplo Container Wooden-Style Crate Dark Orange Part 6446 Element 4158473 ×1
  • Duplo Food French Bread Loaves Dark Orange Part 60773 Element 4515392 ×1
  • Duplo Wrench Flat Silver Part 47509 Element 4620277 ×1
  • Duplo Plate 4 x 8 Green Part 4672 Element 4279291 or 467228 ×1
  • Duplo Brick 2 x 2 Slope 45° with 28.35 Cash Register Print Light Bluish Gray Part 6474pr9990 Element 4583819 ×1
  • Duplo Brick 2 x 2 Lime Part 3437 Element 4183780 ×2
  • Duplo Brick 2 x 3 with Curved Bottom Lime Part 98252 Element 4655944 ×2
  • Duplo Brick 2 x 4 Curved Top Lime Part 98223 Element 4652863 ×1
  • Duplo Brick 2 x 2 Medium Blue Part 3437 Element 4166960 or 4162701 ×2
  • Duplo Door / Window Frame Flat Front Surface, Completely Open Back Medium Blue Part 61649 Element 4653574 ×1
  • Duplo Door Frame 2 x 4 x 5 Medium Blue Part 92094 Element 4659558 ×1
  • Duplo Plate 2 x 4 Medium Blue Part 40666 Element 4216758 or 4194539 ×2
  • Duplo Brick 2 x 2 Orange Part 3437 Element 4159527 ×2
  • Duplo Brick 2 x 3 with Curved Top Orange Part 2302 Element 4259655 ×2
  • Duplo Brick 2 x 4 Curved Top Orange Part 98223 Element 4659508 ×1
  • Duplo Plant, Flower with 1 Top Stud Orange Part 6510 Element 4224677 or 4217971 ×1
  • Duplo Brick 1 x 2 x 2 Red Part 4066 Element 4162461 or 4100634 ×1
  • Duplo Brick 2 x 2 Red Part 3437 Element 4583321 or 343721 ×2
  • Duplo Brick 2 x 3 x 2 with Curve Red Part 2301 Element 230121 ×2
  • Duplo Brick 2 x 4 Curved Top Red Part 98223 Element 4648243 ×1
  • Duplo Plate 2 x 4 Red Part 40666 Element 4583329 or 4567246 ×1
  • Duplo Roofpiece Slope 33 4 x 4 with Awning Overhang with 9 Bottom Tubes Red Part 31170 Element 4520284 ×1
  • Duplo Animal Dog Large Paws with Brown Ears and Tail and Spots Tan Part 58057pr0001 Element 6019830 or 4579472 ×1
  • Duplo Brick 2 x 2 Trans-Light Blue Part 3437 Element 6507900 or 6201835 ×1
  • Duplo Door / Window with Four Equal Square Cornered Panes White Part 90265 Element 4586178 ×2
  • Duplo Door 1 x 4 x 4 with Four Panes, Different Size and Curved Top White Part 31023 Element 3102301 ×1
  • Duplo Fence 1 x 6 x 2 Paled (Picket) White Part 6497 Element 4100729 or 649701 ×1
  • Duplo Brick 2 x 2 Yellow Part 3437 Element 4583546 or 343724 ×2
  • Duplo Brick 2 x 2 Slope 45° with Octan, Digits and Gas Gauge Print Yellow Part 6474pr9991 Element 4526659 ×1
  • Duplo Chair with 4 Studs and Squared Back Yellow Part 6478 Element 647824 ×1
  • Duplo Door / Window Frame Flat Front Surface, Completely Open Back Yellow Part 61649 Element 4595171 or 4541213 ×1
  • Duplo Plant, Flower with 1 Top Stud Yellow Part 6510 Element 4100853 ×1
  • Duplo Plate 2 x 8 Yellow Part 44524 Element 4540650 ×1

Gear Parts 4 pieces

  • Activity Card, Set 4631-1, Card 1 - House [No Color/Any Color] Part 4662107 ×1
  • Activity Card, Set 4631-1, Card 2 - Truck [No Color/Any Color] Part 4662108 ×1
  • Activity Card, Set 4631-1, Card 3 - Boat [No Color/Any Color] Part 4662109 ×1
  • Activity Card, Set 4631-1, Card 4 - Fuel Pump [No Color/Any Color] Part 4666342 ×1

Non-Buildable Figures (Duplo, Fabuland, etc) 1 piece

  • Duplo Figure Side Parted Hair Black, with Blue Legs, Red Shirt with Pockets and Name Tag, Brown Eyes, Nougat Hands Red Part 75126pr0001 Element 4667672 or 4598710 ×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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