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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.

Tremor Track Infiltration

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70161 Tremor Track Infiltration

233 pieces in 86 part and color combinations, plus 2 minifigures.

The official piece count includes the 8 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 51 pieces

  • Antenna 8H Whip Black Part 2569 Element 6265148 or 6164379 1 spare in the box ×1
  • Bar 6L with Stop Ring Black Part 63965 Element 6170421 or 6081988 ×2
  • Bracket 1 x 2 - 1 x 2 Inverted Black Part 99780 Element 6020193 ×2
  • Brick 1 x 2 x 2 with Inside Stud Holder Black Part 3245c Element 4618852 ×2
  • Brick Curved 2 x 4 x 2/3 No Studs, with Bottom Tubes Black Part 88930 Element 4587844 ×1
  • 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 ×6
  • Brick Special 1 x 2 with Grille Black Part 2877 Element 287726 ×2
  • Plate 1 x 10 Black Part 4477 Element 447726 ×5
  • Plate 2 x 3 Black Part 3021 Element 302126 ×5
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Black Part 60470b Element 6310268 or 4556158 ×2
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Black Part 60478 Element 4515368 ×6
  • Spoiler 2 x 4 with Handle [Plain] Black Part 98834 Element 6058966 ×1
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×2
  • Technic Beam 1 x 11 Thick Black Part 32525 Element 6029578 or 4534909 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] Black Part 32000 Element 3200026 ×4
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×1
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×1
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×2
  • Tread Small (20 Links) Black Part 43903 Element 4180576 ×2

Dark Bluish Gray 41 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Dark Bluish Gray Part 11477 Element 6029948 ×8
  • Brick Round 1 x 1 Open Stud Dark Bluish Gray Part 3062b Element 4211090 ×4
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Dark Bluish Gray Part 61409 Element 4540386 or 4521185 ×6
  • Brick Sloped Inverted 45° 2 x 1 Dark Bluish Gray Part 3665 Element 4211096 ×2
  • Brick Special 1 x 2 with Pin Dark Bluish Gray Part 2458 Element 4211087 ×2
  • Brick Special 2 x 4, with 2 x 2 Brick with Top Pin and 1 x 2 Side Plates Dark Bluish Gray Part 30592 Element 6301436 or 6278507 ×1
  • Launcher Trigger, Weapon Gun Trigger Dark Bluish Gray Part 15392 Element 6051334 1 spare in the box ×1
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×4
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 ×1
  • Plate 3 x 3 Dark Bluish Gray Part 11212 Element 6039176 ×2
  • Technic Beam 1 x 7 Thick Dark Bluish Gray Part 32524 Element 4495931 or 4210752 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Dark Bluish Gray Part 3700 Element 4211111 ×2
  • Technic Steering Wheel Pilot's Yoke [Hollow Stud, Axle Hole with + Opening] Dark Bluish Gray Part 18352 Element 6082043 ×1
  • Tile Special 1 x 1 with Clip with Rounded Tips Dark Bluish Gray Part 12825 Element 6030710 ×4
  • Tile Special 1 x 2 with Handle Dark Bluish Gray Part 2432 Element 4211039 ×1

Light Bluish Gray 39 pieces

  • Bracket 1 x 2 - 1 x 2 Light Bluish Gray Part 99781 Element 4654582 ×2
  • Brick Round 2 x 2 Truncated Cone Light Bluish Gray Part 98100 Element 6028324 ×2
  • Brick Round 2 x 2 [Grill] Light Bluish Gray Part 92947 Element 4650645 or 4610816 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Bluish Gray Part 3040b Element 4211614 ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×2
  • Plate 4 x 12 Light Bluish Gray Part 3029 Element 4211401 ×2
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm] Light Bluish Gray Part 88072 Element 6261353 or 4611702 ×1
  • Plate Special 2 x 2 with 2 Pin Holes Light Bluish Gray Part 2817 Element 4211376 ×1
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Light Bluish Gray Part 60483 Element 6265089 or 6004888 ×1
  • Technic Pin 1/2 with 2L Bar Extension Light Bluish Gray Part 61184 Element 6347715 or 4520320 ×4
  • Technic Pin Connector Round [Slotted] Light Bluish Gray Part 62462 Element 6173127 or 4526985 ×1
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×11
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×1
  • Tile Special 2 x 2 with Top Pin Light Bluish Gray Part 2460 Element 4211365 ×1
  • Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes Light Bluish Gray Part 55981 Element 6109684 or 4299119 ×6

Dark Tan 24 pieces

  • Brick 1 x 2 Dark Tan Part 3004 Element 4521914 or 4497069 ×1
  • Brick Sloped 30° 1 x 2 x 2/3 Dark Tan Part 85984 Element 6015449 ×2
  • Brick Sloped 33° 3 x 2 Dark Tan Part 3298 Element 6363523 or 6078613 ×5
  • Dish 2 x 2 Inverted [Radar] Dark Tan Part 4740 Element 6021969 ×6
  • Plate 1 x 6 Dark Tan Part 3666 Element 6015424 ×3
  • Plate 2 x 10 Dark Tan Part 3832 Element 6522352 or 6079776 ×2
  • Technic Axle 5 with Stop Dark Tan Part 15462 Element 6055631 ×1
  • Wedge Plate 2 x 4 Dark Tan Part 51739 Element 6003379 ×4

Flat Silver 22 pieces

  • Arm Mechanical with Clip [Thick Support] Flat Silver Part 98313 Element 6262193 or 6008483 ×6
  • Gorilla Fist / Hand Flat Silver Part 11092 Element 6037408 ×2
  • Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Flat Silver Part 58176 Element 6030198 ×6
  • Plate Round 1 x 1 with Solid Stud Flat Silver Part 6141 Element 4633691 1 spare in the box ×8

Blue 15 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×3
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 1 spare in the box ×12

Trans-Red 8 pieces

  • Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Trans-Red Part 58176 Element 6507867 or 6171762 ×4
  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 ×4

Red 6 pieces

  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Red Part 61252 Element 6335377 or 4524644 ×1
  • Plate Special 1 x 2 [Side Handle Closed Ends] Red Part 48336 Element 4226876 ×2
  • Technic Beam 1 x 5 Thick Red Part 32316 Element 4142132 or 4128589 ×1
  • Technic Brick 1 x 8 [7 Pin Holes] Red Part 3702 Element 370221 ×2

Tan 6 pieces

  • Brick Special 1 x 2 with Handle Tan Part 30236 Element 4288513 or 4201066 ×1
  • Brick Special 2 x 2 with Pin and Axle Hole Tan Part 6232 Element 6347700 or 4185273 ×1
  • Technic Pin Long without Friction Ridges Tan Part 32556 ×4

White 6 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 White Part 85984 Element 6550189 or 4547489 ×1
  • Brick Special 1 x 2 with Groove White Part 4216 Element 6619288 or 4264360 ×1
  • Launcher, Weapon Gun / Blaster / Shooter Mini White Part 15391 Element 6076599 ×1
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×1
  • Plate 4 x 4 White Part 3031 Element 6552127 or 4243812 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) White Part 87580 Element 6550157 or 6126046 ×1

Trans-Clear 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×4

Trans-Yellow 4 pieces

  • Plate 1 x 2 Trans-Yellow Part 3023 Element 6514002 or 6240211 ×4

Trans-Light Blue 3 pieces

  • Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Trans-Light Blue Part 87552 Element 6581813 or 6253230 ×1
  • Plate 1 x 2 Trans-Light Blue Part 3023 Element 6514007 or 6240222 ×2

Trans-Orange 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 1 spare in the box ×2

Trans-Green 1 piece

  • Tile 1 x 1 with Dark Bluish Gray Square with Black Center and Lines Print (Ultra Chip) Trans-Green Part 3070bpr0001 Element 6254420 or 6083816 1 spare in the box ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 70161-1 [No Color/Any Color] Part 17618 Element 6074573 ×1

Minifigures 2 figures

  • Agent Jack Fury Minifigure, checked as a whole figure ×1
  • Tremor 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.

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