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Action Battle Echo Base Defense

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75241 Action Battle Echo Base Defense

462 pieces in 174 part and color combinations, plus 6 minifigures.

The official piece count includes the 42 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.

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.

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Piece checklist

Bricks Sloped 76 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×2
  • Brick Sloped Inverted 45° 4 x 1 Double with 1 x 2 Recessed Dark Bluish Gray Part 32802 Element 6185675 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 ×2
  • Brick Sloped 33° 3 x 2 Light Bluish Gray Part 3298 Element 4211421 ×1
  • Brick Sloped 65° 2 x 1 x 2 Light Bluish Gray Part 60481 Element 4515374 ×2
  • Brick Sloped 65° 2 x 2 x 2 with Bottom Tube Light Bluish Gray Part 3678b Element 4234535 or 4215353 ×2
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Light Bluish Gray Part 3747b Element 4211570 ×2
  • Brick Sloped Inverted 45° 2 x 1 Light Bluish Gray Part 3665 Element 4211437 ×2
  • Brick Sloped 18° 4 x 1 White Part 60477 Element 6619300 or 4515359 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box ×9
  • Brick Sloped 30° 1 x 2 x 2/3 White Part 85984 Element 6550189 or 4547489 ×12
  • Brick Sloped 33° 3 x 2 White Part 3298 Element 329801 ×1
  • Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no stud White Part 28192 Element 6552164 or 6166894 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin White Part 3040b Element 6552115 or 4121932 ×7
  • Brick Sloped 45° 2 x 2 White Part 3039 Element 6552103 or 303901 ×14
  • Brick Sloped 65° 2 x 1 x 2 White Part 60481 Element 6552132 or 4515370 ×2
  • Brick Sloped 65° 2 x 2 x 2 with Bottom Tube White Part 3678b Element 6552126 or 4234525 ×6
  • Brick Sloped 75° 2 x 1 x 3 with Hollow Stud White Part 4460b Element 6552112 or 446001 ×5
  • Brick Sloped Inverted 45° 2 x 1 White Part 3665 Element 6552106 or 366501 ×2

Plates 57 pieces

  • Plate 6 x 10 Black Part 3033 Element 303326 ×1
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×1
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×1
  • Plate 2 x 12 Dark Bluish Gray Part 2445 Element 4211067 ×2
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×6
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×5
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 ×1
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×5
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×2
  • Plate 2 x 10 Light Bluish Gray Part 3832 Element 4211462 ×2
  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×1
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×3
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×1
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×4
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 1 x 2 Tan Part 3023 Element 4113917 or 302305 ×1
  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 ×1
  • Plate 1 x 12 White Part 60479 Element 6552130 or 6548269 ×1
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×5
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×2
  • Plate 2 x 12 White Part 2445 Element 6552091 or 244501 ×1
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×1
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×2
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×1
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×1
  • Plate 4 x 10 White Part 3030 Element 6550137 or 4503008 ×1
  • Plate 4 x 4 White Part 3031 Element 6552127 or 4243812 ×1
  • Plate 4 x 6 White Part 3032 Element 303201 ×2
  • Plate 6 x 12 White Part 3028 Element 4120020 or 302801 ×1

Plates Special 51 pieces

  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×3
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 ×1
  • Plate Special 1 x 4 with 2 Studs with Groove [New Underside] Black Part 41740 Element 6254045 ×10
  • Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] Black Part 10247 Element 6061032 ×2
  • Plate Special 2 x 2 with Only 2 studs Black Part 33909 Element 6192346 ×1
  • Bracket 1 x 2 - 1 x 2 Inverted Dark Bluish Gray Part 99780 Element 6000606 ×2
  • Plate Special 1 x 2 with Clip Horizontal on End Dark Bluish Gray Part 63868 Element 6336990 or 4581225 ×2
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Dark Bluish Gray Part 60478 Element 4521187 ×6
  • Bracket 1 x 2 - 1 x 2 Light Bluish Gray Part 99781 Element 4654582 ×1
  • Bracket 1 x 2 - 2 x 2 Light Bluish Gray Part 44728 Element 6117967 or 6009014 ×2
  • Bracket 1 x 2 - 2 x 2 Inverted Light Bluish Gray Part 99207 Element 4654580 ×6
  • Plate Special 1 x 2 with Clip Horizontal on End Light Bluish Gray Part 63868 Element 6319336 or 4535738 ×4
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Light Bluish Gray Part 60470b Element 6337268 or 4556157 ×2
  • Plate Special 2 x 2 with 2 Pin Holes Light Bluish Gray Part 2817 Element 4211376 ×3
  • Plate Special 4 x 6, Studs on 3 Edges Light Bluish Gray Part 6180 Element 4211838 ×2
  • Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Light Bluish Gray Part 32828 Element 6227897 1 spare in the box ×2
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Light Bluish Gray Part 18674 Element 6183782 ×2

Bricks 34 pieces

  • Brick 1 x 3 Dark Bluish Gray Part 3622 Element 4211104 ×1
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×2
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×1
  • Brick 2 x 2 Light Bluish Gray Part 3003 Element 4211387 ×1
  • Brick 1 x 2 Tan Part 3004 Element 4109995 or 300405 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×2
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×4
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×6
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×12
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×1
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×2

Bricks Curved 32 pieces

  • Brick Curved 4 x 1 Double, No Studs Dark Bluish Gray Part 93273 Element 4648256 ×1
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Light Bluish Gray Part 6091 Element 6285778 or 4211519 ×4
  • Brick Curved 2 x 2 x 2/3 Light Bluish Gray Part 15068 Element 6102357 ×8
  • Brick Curved Inverted 2 x 1 Light Bluish Gray Part 24201 Element 6144138 ×6
  • Brick Arch 1 x 4 White Part 3659 Element 6550145 or 365901 ×1
  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×1
  • Brick Curved 2 x 2 x 2/3 White Part 15068 Element 6552147 or 6047220 ×8
  • Brick Curved 4 x 1 Double, No Studs White Part 93273 Element 6552143 or 6023806 ×1
  • Brick Curved Inverted 2 x 2 x 2/3 White Part 32803 Element 6210385 ×2

Plates Round Curved and Dishes 32 pieces

  • Plate Round 4 x 4 with Pin Hole Blue Part 60474 Element 4581501 ×3
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Bluish Gray Part 4032a Element 4211042 ×3
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Dark Bluish Gray Part 2654 Element 4613980 or 4278274 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×3
  • Plate Round 4 x 4 with Pin Hole Light Bluish Gray Part 60474 Element 4515351 ×1
  • Plate Round 4 x 4 with Pin Hole Red Part 60474 Element 4515348 ×3
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×6
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] White Part 2654 Element 6601843 or 6552259 ×7
  • Plate Round 6 x 6 with Hole White Part 11213 Element 6601923 or 6109817 ×1
  • Plate Round Corner 6 x 6 White Part 6003 Element 6057460 or 4240396 ×2
  • Plate Round Half 4 x 8 White Part 22888 Element 6138699 ×1

Technic Axles 22 pieces

  • Technic Axle 4 Black Part 3705 Element 370526 ×4
  • Technic Axle 6 Black Part 3706 Element 370626 ×2
  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×2
  • Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×1
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×5
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×1
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×4
  • Technic Axle 3 with Stop Reddish Brown Part 24316 Element 6135494 ×2
  • Technic Axle 5 with Stop Reddish Brown Part 15462 Element 6159763 ×1

Technic Bricks 22 pieces

  • Technic Brick 1 x 2 [2 Pin Holes] Black Part 32000 Element 3200026 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Dark Bluish Gray Part 3700 Element 4211111 ×3
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Dark Bluish Gray Part 32064a Element 6178919 or 4210935 ×6
  • Technic Brick 1 x 2 [1 Pin Hole] Light Bluish Gray Part 3700 Element 4211440 ×9
  • Technic Brick 1 x 2 [2 Pin Holes] Light Bluish Gray Part 32000 Element 4211541 ×2

Technic Connectors 19 pieces

  • Technic Axle and Pin Connector Angled #6 - 90° Black Part 32014 Element 6268905 or 4107767 Also in Dark Bluish Gray ×1
  • Technic Pin Connector Round [Slotted] Black Part 62462 Element 6173119 or 4526982 ×1
  • Technic Axle Connector Smooth [with x Hole + Orientation] Dark Bluish Gray Part 59443 Element 6084613 or 4516546 ×2
  • Technic Axle and Pin Connector Angled #6 - 90° Dark Bluish Gray Part 32014 Element 6268923 or 4210671 Also in Black ×1
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Dark Bluish Gray Part 42003 Element 6273715 or 4210857 ×1
  • Technic Axle Connector with Axle Hole Light Bluish Gray Part 32039 Element 4211553 ×5
  • Technic Axle Connector with Axle Hole Red Part 32039 Element 4118897 ×1
  • Technic Axle and Pin Connector Perpendicular Red Part 6536 Element 6261373 or 4188298 ×1
  • Technic Axle and Pin Connector Angled #1 White Part 32013 Element 6332573 or 4118981 ×1
  • Technic Pin Connector Round 1L [Beam] White Part 18654 Element 6550155 or 6177114 1 spare in the box ×4
  • Technic Pin Connector Round [Slotted] White Part 62462 Element 6550164 or 6173116 ×1

Tiles Special 19 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×1
  • Tile Special 2 x 2 with Top Pin Dark Bluish Gray Part 2460 Element 4211129 ×1
  • Tile Special Round 2 x 2 with Hole Dark Bluish Gray Part 15535 Element 6055313 ×4
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×5
  • Tile Special 1 x 2 with Handle Light Bluish Gray Part 2432 Element 4211357 ×4
  • Tile Special 2 x 2 Corner with Cut Corner - Facet White Part 27263 Element 6615527 or 6168612 ×4

Technic Pins 18 pieces

  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×1
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×1
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×5
  • Technic Pin 1/2 with 2L Bar Extension Light Bluish Gray Part 61184 Element 6347715 or 4520320 ×2
  • 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 1 spare in the box ×5
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×2
  • Technic Pin Long without Friction Ridges Tan Part 32556 ×1

Bricks Round and Cones 15 pieces

  • Cone 1 x 1 [Top Groove] Blue Part 59900 Element 4529235 ×1
  • Brick Round 2 x 2 with Axle Hole Light Bluish Gray Part 3941 Element 4211526 ×5
  • Brick Round 4 x 4 with 4 Side Pin Holes and Center Axle Hole Light Bluish Gray Part 6222 Element 4211527 ×4
  • Cone 1 x 1 [Top Groove] Red Part 59900 Element 4529234 ×1
  • Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs White Part 48092 Element 6550183 or 6337627 ×2
  • Cylinder Half 2 x 4 x 4 White Part 6259 Element 6106024 or 4163987 ×2

Tiles 11 pieces

  • Tile 2 x 3 Dark Bluish Gray Part 26603 Element 6187008 ×1
  • Tile 1 x 2 with Stylised Computer Console Print Light Bluish Gray Part 3069bpr0086 Element 4212363 ×2
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×7
  • Tile 1 x 8 with Groove White Part 4162 Element 6552110 or 416201 ×1

Bricks Special 8 pieces

  • Brick Special 1 x 1 with Clip Horizontal Black Part 60476 Element 6320309 or 4535765 ×2
  • Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud] Dark Bluish Gray Part 60475b Element 6321350 or 4580437 ×1
  • Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud] Light Bluish Gray Part 60475b Element 6345426 or 4533772 ×1
  • Brick Special 1 x 2 with Grille Light Bluish Gray Part 2877 Element 4211383 ×1
  • Brick Special 1 x 4 with 4 Studs on One Side Light Bluish Gray Part 30414 Element 4211636 ×2
  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Tan Part 22885 Element 6214334 ×1

Hinges, Arms and Turntables 7 pieces

  • Hinge Brick 1 x 2 Locking with 2 Fingers Horizontal End, 9 Teeth Black Part 30540 Element 4144533 ×1
  • Hinge Plate 2 x 4 with Pin Hole with 2 Holes - Top Light Bluish Gray Part 43045 Element 6256117 ×4
  • Hinge Brick 1 x 2 Locking with 1 Finger Horizontal End White Part 30541 Element 6263488 or 6055883 ×1
  • Turntable 2 x 2 Female White Part 27448 Element 6536567 or 6238334 ×1

Plates Wedged 7 pieces

  • Wedge Plate 2 x 2 Cut Corner Light Bluish Gray Part 26601 Element 6186657 ×2
  • Wedge Plate 2 x 2 Left Light Bluish Gray Part 24299 Element 6163478 ×2
  • Wedge Plate 2 x 2 Right Light Bluish Gray Part 24307 Element 6163477 ×2
  • Wedge Plate 3 x 2 Left White Part 43723 Element 6552121 or 4179875 ×1

Projectiles / Launchers 6 pieces

  • Launcher, Technic Competition Cannon Flat Bottom [Complete Assembly] Dark Bluish Gray Part 57796 Element 6064131 or 4518308 ×2
  • Projectile, Technic Competition Arrow, Liftarm Shaft with Hollow Black Rubber End Light Bluish Gray Part 57028c01 Element 4299625 ×4

Technic Bushes 6 pieces

  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×4
  • Technic Bush Red Part 3713 Element 6271820 or 4227155 1 spare in the box ×1
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×1

Tiles Round and Curved 6 pieces

  • Tile Round 2 x 2 with Red Imperial Logo Print White Part 14769pr1132 Element 6258914 ×3
  • Tile Round 2 x 2 with Star Wars Blue Rebels Symbol Print White Part 14769pr1133 Element 6258934 ×3

Minifig Shields, Weapons, & Tools 5 pieces

  • Weapon Gun / Blaster Long (Star Wars) Black Part 57899 Element 4498712 ×2
  • Weapon Gun / Blaster Short (Star Wars) Black Part 58247 Element 4498713 ×3

Technic Beams 5 pieces

  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black Part 60483 Element 6265091 or 6006140 ×1
  • Technic Beam 1 x 3 Thin Dark Bluish Gray Part 6632 Element 6632199 or 6364452 ×4

Panels 1 piece

  • Panel 1 x 2 x 1 with Rounded Corners and Central Divider Black Part 93095 Element 6640376 or 6115086 ×1

Technic Special 1 piece

  • Technic Brick 1 x 2 with Hole and Dual Beam Extensions Dark Bluish Gray Part 85943 Element 6324639 or 4547958 ×1

Tools 1 piece

  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×1

Wheels and Tyres 1 piece

  • Wheel 11 x 8 with Center Groove Light Bluish Gray Part 42610 Element 4211758 ×1

Minifigures 6 figures

  • Snowtrooper, White Hips, Printed Legs, Dark Tan Hands (3626cpr1149 Head) Minifigure, checked as a whole figure ×2
  • Rebel Trooper in Hoth Uniform, Dark Tan Hat, White Beard Minifigure, checked as a whole figure ×1
  • Rebel Trooper in Hoth Uniform, Dark Tan Hat, Frown Minifigure, checked as a whole figure ×1
  • Rebel Trooper in Hoth Uniform, Dark Tan Hat, Open Mouth Minifigure, checked as a whole figure ×1
  • Imperial Probe Droid Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

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