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7693 ETX Alien Strike

237 pieces in 99 part and color combinations, plus 3 minifigures.

The piece count includes the 9 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

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 Special 1 x 1 with Clip Horizontal [Thick U Clip] Black ×2 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.

Piece checklist

Bricks Round and Cones 30 pieces

Brick Round Corner 10 x 10 with Slope 33° Edge, Axle Hole, Facet Cutout Black Part 58846 Element 6454174 or 6015466 ×4
Cone 2 x 2 x 2, Open Stud Black Part 3942c Element 6092664 or 6022160 ×1
Brick Round 1 x 1 Open Stud Dark Bluish Gray Part 3062b Element 4211090 ×4
Cone 1 x 1 [No Top Groove] Trans-Dark Blue Part 4589 Element 618843 ×2
Brick Round 2 x 2 with Axle Hole Trans-Neon Green Part 3941 Element 6273157 or 611649 ×2
Cone 1 x 1 [No Top Groove] Trans-Neon Green Part 4589 Element 618849 or 458949 ×17

Technic Pins 25 pieces

Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×2
Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×4
Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 1 spare in the box ×14
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Light Bluish Gray Part 32054 Element 4211865 ×1
Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 ×4

Hinges, Arms and Turntables 19 pieces

Hinge Brick 1 x 2 Locking with 1 Finger Horizontal End Black Part 30541 Element 6263485 or 4143751 ×4
Hinge Brick 1 x 6 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Black Part 30388 Element 4226509 or 3038826 ×1
Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Black Part 30553 Element 4143372 ×1
Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Black Part 41532 Element 4159335 ×1
Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Black Part 73983 Element 6102782 or 74011 ×2
Hinge Plate 1 x 2 Locking with 1 Finger On Top Dark Bluish Gray Part 30383 Element 6265693 or 4210726 ×3
Hinge Brick 1 x 2 Locking with 2 Fingers Horizontal End, 9 Teeth Light Bluish Gray Part 30540 Element 6078264 or 4211678 ×4
Hinge Plate 1 x 12 Locking with Angled Side Extensions and Tapered Ends, 7 Teeth Lime Part 57906 Element 6448751 or 4656148 ×3

Plates Special 19 pieces

Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 Also in Dark Bluish Gray ×2
Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Black Part 3839b Element 383926 ×1
Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Dark Bluish Gray Part 6019 Element 4216973 Also in Black ×2
Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Dark Bluish Gray Part 3794a ×1
Plate Special 3 x 2 with Rounded End, Hole Dark Bluish Gray Part 3176 Element 4225733 ×2
Plate Special 1 x 2 [Side Handle Closed Ends] Light Bluish Gray Part 48336 Element 4244627 ×1
Plate Special 2 x 2 with Grills Light Bluish Gray Part 41862 Element 4211748 ×1
Plate Special 1 x 2 Side Handle [Free Ends] Orange Part 2540 Element 4190164 or 4163269 ×8
Plate Special 1 x 2 [Side Handle Closed Ends] White Part 48336 Element 6552125 or 4222017 ×1

Technic Bricks 14 pieces

Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×3
Technic Brick 1 x 6 [5 Pin Holes] Black Part 3894 Element 389426 ×5
Technic Brick 4 x 6 with 2 x 4 Opening Black Part 32531 Element 6456527 or 4162508 ×1
Technic Brick 1 x 14 [13 Pin Holes] Dark Bluish Gray Part 32018 Element 4211137 ×1
Technic Brick 1 x 2 [2 Pin Holes] Light Bluish Gray Part 32000 Element 4211541 ×2
Technic Brick 1 x 8 [7 Pin Holes] Light Bluish Gray Part 3702 Element 4211442 ×2

Bricks 10 pieces

Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 ×4
Brick 2 x 3 Dark Bluish Gray Part 3002 Element 4211105 ×4
Brick 2 x 6 Light Bluish Gray Part 2456 Element 4274668 or 4211795 ×1
Brick 2 x 6 White Part 2456 Element 6552122 or 4249698 ×1

Plates Round Curved and Dishes 10 pieces

Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×1
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Bluish Gray Part 4032a Element 4211042 ×2
Dish 2 x 2 Inverted [Radar] Trans-Neon Green Part 4740 Element 6245297 or 4112517 ×3
Plate Round 1 x 1 with Solid Stud Trans-Neon Green Part 6141 Element 6240223 or 3005749 1 spare in the box ×2
Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 1 spare in the box ×2

Bricks Sloped 9 pieces

Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×4
Brick Sloped Inverted 45° 6 x 4 Double with 4 x 4 Recessed Black Part 30283 Element 4119370 ×1
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Lime Part 54200 Element 4504372 or 4298015 ×2
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Red Part 54200 Element 6245252 or 4244363 ×2

Bricks Wedged 8 pieces

Brick Wedged 3 x 3 Cut Corner Black Part 30505 Element 4159550 ×2
Brick Wedged, Curved 10 x 3 Left Black Part 50955 Element 6344913 or 6106304 ×1
Brick Wedged, Curved 10 x 3 Right Black Part 50956 Element 6344914 or 6106305 ×1
Brick Wedged, Curved 6 x 2 Left, Inner Ridges Black Part 41748 Element 4160130 ×1
Brick Wedged, Curved 6 x 2 Right, Inner Ridges Black Part 41747 Element 4160108 ×1
Brick Wedged, Angled 4 x 2 Left Dark Bluish Gray Part 41768 Element 4287973 or 4242124 ×1
Brick Wedged, Angled 4 x 2 Right Dark Bluish Gray Part 41767 Element 4287972 or 4242123 ×1

Plates Wedged 8 pieces

Wedge Plate 4 x 2 Left Black Part 41770 Element 4161332 ×1
Wedge Plate 4 x 2 Right Black Part 41769 Element 4160869 ×1
Wedge Plate 6 x 6 Cut Corner Black Part 6106 Element 4106977 or 610626 ×2
Wedge Plate 8 x 3, 22° Left Black Part 50305 Element 4251394 ×2
Wedge Plate 8 x 3, 22° Right Black Part 50304 Element 4251393 ×2

Tiles 8 pieces

Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×1
Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×2
Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 1 spare in the box ×2
Tile 1 x 6 with Groove White Part 6636 Element 6548296 or 663601 ×3

Bricks Special 6 pieces

Brick Special 1 x 1 with Headlight Dark Bluish Gray Part 4070 Element 4211044 ×4
Brick Special 2 x 2 with 2 Pins and Axle Hole Dark Bluish Gray Part 30000 Element 6405646 or 4211024 ×2

Tiles Round and Curved 6 pieces

Tile Round 2 x 2 with Bottom Cross Black Part 4150 Element 415076 or 415026 ×6

Animal / Creature Body Parts 4 pieces

Animal Body Part / Plant, Tail / Neck / Branch / Trunk, Middle Section with Pin, Round Pin Hole Lime Part 40378 Element 6290985 or 4650634 ×2
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small Red Part 53451 Element 6270107 or 4568388 1 spare in the box ×2

Flags, Banners and Signs 4 pieces

Flag 2 x 2 Trapezoid with Flat Area between Clips White Part 44676 Element 6023099 or 4507191 ×4

Minifig Upper Body 4 pieces

Arm Mechanical with 2 Clips [Battle Droid] Black Part 30377 Element 6330086 or 4223247 1 spare in the box ×4

Wheels and Tyres 4 pieces

Wheel Hard Plastic Small (22mm D. x 24mm) Orange Part 6118 Element 4505861 ×4

Rock 3 pieces

Rock 1 x 1 Jewel / Gem 24 Facet Trans-Neon Green Part 30153 Element 6247790 or 4114505 ×3

Technic Axles 2 pieces

Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×1
Technic Axle 2 Notched Red Part 32062 Element 4142865 ×1

Technic Gears 2 pieces

Technic Worm Gear Black Part 4716 Element 6037533 or 471626 ×1
Technic Gear 8 Tooth Light Bluish Gray Part 3647 Element 4211432 or 3647194 1 spare in the box ×1

Bars, Ladders and Fences 1 piece

Bar 4L (Lightsaber Blade / Wand) Light Bluish Gray Part 30374 Element 6116608 or 4211628 ×1

Bricks Curved 1 piece

Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End White Part 47457 Element 4494474 ×1

Large Buildable Figures 1 piece

Large Figure Weapon Spear, Drill with Axle and Hole Black Part 40340 Element 4507190 or 4227078 ×1

Minifig Accessories 1 piece

Equipment Martian Hypersled with Pin (Mars Mission) White Part 58843 Element 4501924 ×1

Panels 1 piece

Panel 1 x 2 x 1 [Square Corners] White Part 4865a Element 486501 ×1

Stickers 1 piece

Sticker Sheet for Set 7693-1 [No Color/Any Color] Part 59621 Element 4506054 ×1

Technic Connectors 1 piece

Technic Axle and Pin Connector Angled #1 White Part 32013 Element 6332573 or 4118981 ×1

Technic Special 1 piece

Technic Plate Rotor 3 Blade with Smooth Ends and 6 Studs (Propeller) Light Bluish Gray Part 32125 Element 4262978 or 4211842 ×1

Tiles Special 1 piece

Tile Special 1 x 2 with Handle Dark Bluish Gray Part 2432 Element 4211039 ×1

Windscreens and Fuselage 1 piece

Windscreen 6 x 4 x 2 Wedge Curved Trans-Orange Part 41883 Element 4505858 ×1

Minifigures 3 figures

Martian Minifigure, checked as a whole figure ×2
Mars Astronaut, Sunglasses Minifigure, checked as a whole figure ×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.