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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 (10894) and each piece's element ID, both listed above.
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Duplo Backhoe / Train Cabin Roof
×2
Duplo Car Base 2 x 6 with Fake Bolts, Open Hitch End and Light Bluish Gray Wheels
×1
Duplo Car Base 2 x 6 with Fake Bolts, Open Hitch End and Red Wheels
×1
Duplo Train Front, Steam Engine with Cow Catcher with Red Circle with '95' and Gold Stripes with Rivets Print
×1
Duplo Brick Round 2 x 2 x 2 with Dynamite Print
×1
Duplo Plant, Flower with 1 Top Stud
×1
Duplo Train Cabin 3 x 3 x 3 1/2 Large Side Windows [Plain]
×2
Duplo Train Cabin 3 x 3 x 3 1/2 with Dark Red Plaque and '95' Print
×1
Duplo Figure with Cowboy Hat, Blue Legs, and Cow Skin Vest Print (Woody)
×1
Duplo Figure with White Legs and Lime Space Suit, Light Nougat Face Print (Buzz Lightyear)
×1
Duplo Hose Flexible 12L with Handle and Clip
×1
Duplo Rear Spoiler 2 x 4 x 1 / 2 [Plain]
×1
Duplo Brick 2 x 2
×1
Duplo Brick 2 x 2 x 2 Curved Top
×1
Duplo Brick 2 x 2 x 2 with Ham, 'WANTED' Poster Print
×1
Duplo Brick 1 x 2 x 2
×1
Duplo Brick 2 x 4 Curved Bottom
×1
Duplo Brick 2 x 2 with 5 Gold Coins with '5' Print
×1
Duplo Backhoe / Train Cabin Roof
×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.
