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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.
Builders who report a missing piece often find it in one of these places. Tick each one off as you look.
LEGO's request form asks for the set number (6153) and each piece's element ID, both listed above.
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Duplo Figure with Bright Light Yellow Hair with Bright Light Blue Headband, Light Nougat Arms, White Legs, Azure Design Print (Cinderella)
×1
Duplo Horse Carriage / Coach Top Curved with Gold Outline Print (Pumpkin)
×2
Duplo Horse Carriage Base Curved with Gold Disney Princess Cinderella Print
×1
Duplo Horse Harness
×1
Duplo Skirt [Plain]
×1
Duplo Animal Horse with one Stud and Raised Hoof, Gold Mane & Tail Print
×1
Duplo Brick 1 x 2 x 2
×1
Duplo Brick 1 x 3 x 2 Round Top with Clock Print
×1
Duplo Car Base 2 x 8 x 1 1/2 with Large Gold Spoked and Spiraled Wheels
×1
Duplo Brick 2 x 2 with Light Blue Shoe Cinderella Glass Slipper Print
×1
Duplo Brick Round 2 x 2 x 2
×2
Duplo Brick 2 x 2
×2
Duplo Brick Arch 2 x 8 x 2 with Support
×1
Duplo Plate 2 x 4
×1
Duplo Plate Round Corner 4 x 4
×2
Duplo Building Roof Spire 3 x 3 x 3
×1
Tick each piece as you find it, or mark it missing.
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 LEGOMark 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.
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.
