Missing Piece Checker: 4505 Sea Machines

Checking

4505 Sea Machines

168 pieces in 74 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.

Every bag and the box. Shake out each bag, check its corners and seams, and look inside the empty box.
Inside what you have built. Small pieces lodge inside tubes, under plates and between studs. Turn the model over and look.
The last few steps. Compare each recent step with its parts callout. A piece used in the wrong place earlier leaves you one short later.
Look-alike colors. 1 part in this set come in two colors that are easy to mix up; they are listed below.
The spare pieces. This set comes with 8 spare pieces, marked on each row of the checklist. One may be the piece you need.
The floor and your building area. Check under furniture, the chair and the edges of your building surface.

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.

Plate Round 1 x 1 with Solid Stud Black ×11 Trans-Brown ×2 Trans-Brown is see-through: hold the piece up to a light.

Piece checklist

Plates Special 32 pieces

Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 ×4
Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Black Part 4081b Element 6281993 or 4632571 ×2
Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×10
Bracket 1 x 2 - 2 x 2 Dark Bluish Gray Part 44728 Element 6117972 or 6048854 ×1
Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Light Bluish Gray Part 4081b Element 6281998 or 4632575 ×3
Plate Special 1 x 2 Side Handle [Free Ends] Light Bluish Gray Part 2540 Element 4211632 ×2
Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Bluish Gray Part 3794a ×5
Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Yellow Part 4081b Element 6281992 or 4632569 ×4
Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Yellow Part 3839b Element 6255102 or 4542426 ×1

Plates Round Curved and Dishes 29 pieces

Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box Also in Trans-Brown ×11
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×1
Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 1 spare in the box ×4
Plate Round 1 x 1 with Solid Stud Orange Part 6141 Element 4157103 1 spare in the box ×4
Plate Round 1 x 1 with Solid Stud Trans-Brown Part 6141 Element 4224386 1 spare in the box Also in Black ×2
Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×7

Bricks Sloped 17 pieces

Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×4
Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×2
Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Black Part 3660 Element 366026 ×5
Brick Sloped 45° 2 x 2 Light Bluish Gray Part 3039 Element 4211410 ×1
Brick Sloped 33° 3 x 1 Yellow Part 4286 Element 428624 ×1
Brick Sloped 33° 3 x 2 Yellow Part 3298 Element 329824 ×1
Brick Sloped 45° 2 x 1 with Bottom Pin Yellow Part 3040b Element 4121965 or 304024 ×1
Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×2

Tiles Special 13 pieces

Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×7
Tile Special 1 x 2 Grille with Bottom Groove Chrome Silver Part 2412b Element 4116794 ×2
Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 1 spare in the box ×1
Tile Special 1 x 2 Grille with Bottom Groove Yellow Part 2412b Element 241224 ×3

Bricks Wedged 9 pieces

Brick Wedged, Curved Inverted 6 x 2 Left Black Part 41765 Element 6468980 or 4161281 ×1
Brick Wedged, Curved Inverted 6 x 2 Right Black Part 41764 Element 6468984 or 4161266 ×1
Brick Wedged, Curved Inverted 6 x 4 Black Part 43713 Element 4180469 ×3
Brick Wedged, Angled 3 x 2 Left Yellow Part 6565 Element 6138215 or 4527769 ×1
Brick Wedged, Angled 3 x 2 Right Yellow Part 6564 Element 6138210 or 4526936 ×1
Brick Wedged, Angled 4 x 2 Left Yellow Part 41768 Element 4160348 ×1
Brick Wedged, Angled 4 x 2 Right Yellow Part 41767 Element 4160333 ×1

Plates Wedged 9 pieces

Wedge Plate 4 x 4 Cut Corner White Part 30503 Element 6615550 or 4160215 ×2
Wedge Plate 4 x 2 Left Yellow Part 41770 Element 4161331 ×3
Wedge Plate 4 x 2 Right Yellow Part 41769 Element 4160868 ×3
Wedge Plate 4 x 4 with 2 x 2 Cutout Yellow Part 43719 Element 6609418 or 6275404 ×1

Tiles 8 pieces

Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×1
Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×4
Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×2
Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×1

Hinges, Arms and Turntables 6 pieces

Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Black Part 44302a Element 4183060 ×3
Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Yellow Part 44567a Element 4185617 ×3

Bricks 3 pieces

Brick 1 x 1 Yellow Part 3005 Element 300524 ×1
Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×1
Brick 2 x 3 Yellow Part 3002 Element 300224 ×1

Bricks Curved 3 pieces

Brick Curved 2 x 2 with Lip, No Studs Trans-Brown Part 30602 Element 6507872 or 6171717 ×3

Bars, Ladders and Fences 2 pieces

Lever Small Base with Black Lever White Part 298c02 Element 73737 1 spare in the box ×2

Bricks Round and Cones 2 pieces

Brick Round 1 x 1 Open Stud Yellow Part 3062b Element 306844 or 306224 ×2

Transportation - Sea and Air 1 piece

Tail Shuttle - Small Yellow Part 44661 Element 6551142 or 6253366 ×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.

LEGO Missing Piece Checker

4505 Sea Machines

Before you call it missing

Look-alike colors in this set

Your missing list

Piece checklist