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ETX Alien Infiltrator

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7646 ETX Alien Infiltrator

315 pieces in 121 part and color combinations, plus 4 minifigures.

The piece count includes the 18 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.

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Piece checklist

Black 108 pieces

  • Bar 1 x 8 with Brick 1 x 2 Curved Top End (Axle Holder Inside Small End) Black Part 30359b Element 4164067 ×6
  • Bar 1L with Clip Black Part 48729a Element 4272218 2 spares in the box ×4
  • Bar 8L - Two Stop Rings / One Pin, Technic Figure Ski Pole [Rounded End] Black Part 2714a Element 4120251 ×2
  • Brick Arch 1 x 3 Black Part 4490 Element 4512727 or 4240242 ×4
  • Brick Curved 3 x 1 No Studs Black Part 50950 Element 4251161 ×1
  • Brick Curved 6 x 1 Black Part 42022 Element 4160393 ×2
  • Brick Round Corner 10 x 10 with Slope 33° Edge, Axle Hole, Facet Cutout Black Part 58846 Element 6454174 or 6015466 ×2
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×2
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Black Part 3747b Element 4500458 or 374726 ×4
  • Brick Special 1 x 2 with Studs on 2 Sides Black Part 52107 Element 4253815 ×2
  • Brick Special 1 x 2 with Vertical Clip [Thick U Clip] Black Part 30237a ×4
  • Brick Wedged, Angled 3 x 2 Left Black Part 6565 Element 4527766 or 656526 ×1
  • Brick Wedged, Angled 3 x 2 Right Black Part 6564 Element 4526931 or 656426 ×1
  • Brick Wedged, Curved 12 x 3 Left Black Part 42061 Element 6174073 or 4527983 ×3
  • Brick Wedged, Curved 12 x 3 Right Black Part 42060 Element 6170771 or 4527984 ×3
  • Brick Wedged, Curved 16 x 4 Triple with Inner Ridges Black Part 45301 Element 4200486 ×2
  • Equipment Metal Detector Black Part 4479 Element 4501975 or 4212278 ×1
  • Fairing 1 x 4 Side Flaring Intake with Two Pins Black Part 30647 Element 4229602 or 4153013 ×2
  • Flexible Ribbed Hose 8mm Ends 19L Black Part 57539 Element 4561467 or 4504612 ×2
  • Hinge Brick 1 x 2 Locking with 1 Finger Vertical End Black Part 30364 Element 6266306 or 4265484 ×4
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Black Part 44302a Element 4183060 ×2
  • Large Figure Weapon Spear, Drill with Axle and Hole Black Part 40340 Element 4507190 or 4227078 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×3
  • Plate 2 x 10 Black Part 3832 Element 383226 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×5
  • Plate 2 x 6 Black Part 3795 Element 379526 ×2
  • Plate 4 x 8 Black Part 3035 Element 303526 ×2
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 ×1
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Black Part 3839b Element 383926 ×1
  • Technic Axle Connector Smooth [with x Hole + Orientation] Black Part 59443 Element 6084612 or 4512363 ×1
  • Technic Axle and Pin Connector Angled #6 - 90° Black Part 32014 Element 6268905 or 4107767 ×1
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 ×2
  • Technic Brick 1 x 6 [5 Pin Holes] Black Part 3894 Element 389426 ×2
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Black Part 32530 Element 4144024 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 2 spares in the box ×6
  • Technic Rotation Joint Ball Loop with Two Perpendicular Pins with Friction Black Part 47455 Element 4272426 or 4213374 ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×5
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×1
  • Tile Round 2 x 2 with Bottom Cross Black Part 4150 Element 415076 or 415026 ×4
  • Tile Special 2 x 3 with 2 Clips [Thick Open O Clips] Black Part 30350b Element 4297713 ×1
  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×2
  • Wedge Plate 3 x 2 Left Black Part 43723 Element 4180536 ×2
  • Wedge Plate 3 x 2 Right Black Part 43722 Element 4180508 ×2
  • Wedge Plate 3 x 6 Cut Corners Black Part 2419 Element 241926 ×2
  • Wheel Arch, Mudguard 4 x 2 1/2 x 2 with 2 x 2 Plate Black Part 50745 Element 4260488 ×2

White 49 pieces

  • Brick 1 x 2 x 2 with Inside Axle Holder White Part 3245b ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top White Part 6091 Element 6285777 or 609101 ×4
  • Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End White Part 47457 Element 4494474 ×4
  • Brick Curved 3 x 1 No Studs White Part 50950 Element 6548268 or 4249112 ×2
  • Brick Sloped 45° 2 x 1 Triple Smooth White Part 3048b ×2
  • Brick Sloped 45° 2 x 2 Double Convex White Part 3045 Element 4233370 or 304501 ×2
  • Brick Sloped 65° 2 x 2 x 2 with Bottom Tube White Part 3678b Element 6552126 or 4234525 ×2
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed White Part 4871 Element 4173943 or 487101 ×1
  • Brick Special 1 x 1 Studs on 4 Sides White Part 4733 Element 4111971 or 473301 ×1
  • Brick Special 1 x 4 with 4 Studs on One Side White Part 30414 Element 6550167 or 4143254 ×2
  • Dish 3 x 3 Inverted [Radar] White Part 43898 Element 4179580 ×1
  • Flag 2 x 2 Trapezoid with Flat Area between Clips White Part 44676 Element 6023099 or 4507191 ×2
  • Hinge Plate 1 x 4 Locking Dual 1 Finger White Part 44568 Element 6276043 or 4193479 ×1
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] White Part 73983 Element 6102776 or 4287153 ×2
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×2
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] White Part 4081b Element 6281990 or 4632566 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) White Part 3794a ×3
  • Technic Beam 1 x 5 Thick White Part 32316 Element 4249021 or 4140465 ×4
  • Technic Brick 1 x 1 with Pin Hole White Part 6541 Element 6609542 or 654101 ×4
  • Technic Brick 1 x 2 [1 Pin Hole] White Part 3700 Element 6619284 or 370001 ×1
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×2
  • Tile Special 1 x 2 with Handle White Part 2432 Element 243201 ×1

Lime 39 pieces

  • Animal Body Part / Plant, Tail / Claw / Horn / Branch / Tentacle, End Section Lime Part 40379 Element 6293393 or 6172469 ×2
  • Animal Body Part / Plant, Tail / Neck / Branch / Trunk, Middle Section with Pin, Round Pin Hole Lime Part 40378 Element 6290985 or 4650634 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Lime Part 54200 Element 4504372 or 4298015 2 spares in the box ×11
  • Plate 1 x 2 Lime Part 3023 Element 4164037 or 4122439 ×5
  • Plate 1 x 4 Lime Part 3710 Element 4187743 or 4122441 ×4
  • Plate 4 x 4 Lime Part 3031 Element 4504850 or 4160080 ×4
  • Plate Round 1 x 1 with Solid Stud Lime Part 6141 Element 4183133 2 spares in the box ×9
  • Plate Round Corner 4 x 4 Lime Part 30565 Element 4504705 ×2

Dark Bluish Gray 26 pieces

  • Equipment Binoculars Dark Bluish Gray Part 30162 Element 4587887 or 4211051 ×1
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Dark Bluish Gray Part 4349 Element 4210698 ×2
  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 9 Teeth Dark Bluish Gray Part 30365 Element 4210724 ×4
  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Dark Bluish Gray Part 30383 Element 6265693 or 4210726 ×2
  • Launcher, Technic Brick Special 2 x 4 with 5 Studs, Axle Hole and Pin Launching Lever Dark Bluish Gray Part 61185 Element 4523806 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Bluish Gray Part 2540 Element 4210660 ×1
  • Plate Special 1 x 4 Offset with Bar Holes Dark Bluish Gray Part 4590 Element 6302647 or 6086709 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] Dark Bluish Gray Part 32000 Element 4210762 ×1
  • Technic Brick 1 x 4 [3 Pin Holes] Dark Bluish Gray Part 3701 Element 4213607 or 370127 ×4
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Vertical Side] Dark Bluish Gray Part 48171 Element 6492115 or 6343337 ×2
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Socket Dark Bluish Gray Part 48169 Element 6278974 or 4225973 ×2
  • Technic Gear 8 Tooth Dark Bluish Gray Part 3647 Element 4514559 1 spare in the box ×1
  • Tool Chainsaw Blade Dark Bluish Gray Part 6117 Element 6166069 or 4211048 ×1
  • Tool Jackhammer / Motor Hammer Dark Bluish Gray Part 30228 Element 4261117 or 4211083 ×1
  • Tool Pickaxe Dark Bluish Gray Part 3841 Element 4211007 ×1

Blue 20 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 3 spares in the box ×16
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×2

Red 19 pieces

  • Brick 2 x 4 Red Part 3001 Element 300121 ×2
  • Plate 1 x 12 Red Part 60479 Element 4514843 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×2
  • Plate 2 x 6 Red Part 3795 Element 379521 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Red Part 3794a ×1
  • Plate Special 2 x 2 with 2 Pin Holes Red Part 2817 Element 281721 ×4
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Red Part 32054 Element 4140806 or 4125198 ×2
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×2
  • Tile Special 1 x 2 with Handle Red Part 2432 Element 243221 ×2

Orange 18 pieces

  • Flexible Ribbed Hose 8mm Ends 19L Orange Part 57539 Element 4561469 or 4508092 ×1
  • Plate 1 x 4 Orange Part 3710 Element 4118782 ×1
  • Plate 2 x 2 Orange Part 3022 Element 4613982 or 4159007 ×6
  • Plate Round 1 x 1 with Solid Stud Orange Part 6141 Element 4157103 1 spare in the box ×3
  • Plate Special 1 x 2 Side Handle [Free Ends] Orange Part 2540 Element 4190164 or 4163269 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Orange Part 2412b Element 4125254 or 3933106 ×5

Trans-Red 14 pieces

  • Brick Round 1 x 1 Open Stud Trans-Red Part 3062b Element 6514235 or 6238673 ×14

Light Bluish Gray 9 pieces

  • Bar 6L with Round Cap and Partially Flat Shaft Light Bluish Gray Part 61680 Element 4525870 ×4
  • Plate Special 1 x 2 with Clips Horizontal [Thick U-Clips] Light Bluish Gray Part 60470a Element 4537900 ×1
  • Technic Worm Gear Light Bluish Gray Part 4716 Element 4211510 ×1
  • Turntable 2 x 2 Plate - Top Light Bluish Gray Part 3679 Element 4540203 or 4495467 ×2
  • Weapon Gun / Torch (Space) [with Grooves] Light Bluish Gray Part 3959 Element 4295570 or 4261357 ×1

Trans-Dark Blue 6 pieces

  • Cone 1 x 1 [No Top Groove] Trans-Dark Blue Part 4589 Element 618843 ×5
  • Plate Round 1 x 1 with Solid Stud Trans-Dark Blue Part 6141 Element 6514055 or 6240214 1 spare in the box ×1

Trans-Neon Green 4 pieces

  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Neon Green Part 30153 Element 6247790 or 4114505 ×4

[No Color/Any Color] 2 pieces

  • Sticker Sheet 1 for Set 7646-1 [No Color/Any Color] Part 63508 Element 4529046 ×1
  • Sticker Sheet 2 for Set 7646-1 [No Color/Any Color] Part 63093 Element 4527612 ×1

Trans-Orange 1 piece

  • Windscreen 6 x 6 x 3 Canopy Half Sphere with Dual 2 Fingers Trans-Orange Part 50747 Element 4505156 ×1

Minifigures 4 figures

  • Mars Astronaut, Smirk / Scared Minifigure, checked as a whole figure ×1
  • Martian, Alien Commander Minifigure, checked as a whole figure ×1
  • Martian Minifigure, checked as a whole figure ×1
  • Mars Astronaut, Printed Hair 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.

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