Inventory for 45546-1: Computer Science & AI Replacement Pack for Year 4-6
This set inventory has been obtained from LEGO Customer Services replacement parts page. It was retrieved on 3 June 2026 and contains 208 pieces.
Important note: We do not control this inventory and cannot currently make changes to it. Use it as a guide to the contents of the set, or to find out part numbers when requesting replacements.
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| Element | Image | Qty | Colour | Category | Design | Element name | Element in sets |
Element introduced in |
Design in sets |
Design introduced in |
|---|---|---|---|---|---|---|---|---|---|---|
| 4129572 |
|
2 | Black | Plates | 32059 | PLATE 4X6 26 DEGREES | 87 | 2000 | 345 | 2000 |
| 6244917 |
|
4 | Black | Bricks | 39789 | BRICK 2X4 W/ CROSS HOLE | 19 | 2023 | 186 | 2019 |
| 6331483 |
|
4 | Black | Plates | 66857 | TILE 2X4, CIRCLE, NO. 1 | 41 | 2021 | 247 | 2020 |
| 6482581 |
|
4 | Black | Vehicles & Transportation | 5253 | WHEEL, DIA. 24X14, W/ 4.85 HOLE, NO. 1 | 9 | 2025 | 9 | 2025 |
| 6492701 |
|
4 | Black | Miscellaneous | 109373 | PLATE, 2X2X2/3, W/ FUNCTION, NO. 1 | 11 | 2025 | 11 | 2025 |
| 6598041 |
|
4 | Black | Miscellaneous | 7335 | PULLEY, DIA. 19.4 | 2 | 2026 | 2 | 2026 |
| 370526 |
|
2 | Black | Connectors | 3705 | CROSS AXLE 4M | 1426 | 1981 | 1874 | 1981 |
| 6346517 |
|
2 | Brick Yellow | Vehicles & Transportation | 18575 | DOUBLE CONICAL WHEEL Z20 1M | 101 | 2009 | 284 | 2007 |
| 9341 |
|
1 | Bright Blue | Minifigure Parts | 73200 | MINI BODY LOWERPART BLUE | 540 | 1992 | 6163 | 1991 |
| 300123 |
|
2 | Bright Blue | Bricks | 3001 | BRICK 2X4 | 432 | 1995 | 6881 | 1991 |
| 6323023 |
|
1 | Bright Blue | Minifigure Parts | 76382 | MINI UPPER PART | 13 | 2020 | 10582 | 1993 |
| 6454717 |
|
1 | Bright Blue | Minifigure Parts | 3274 | MINI HEAD | 12 | 2023 | 164 | 2023 |
| 6249422 |
|
4 | Bright Bluish Green | Bricks | 3001 | BRICK 2X4 | 47 | 2019 | 6881 | 1991 |
| 6314091 |
|
4 | Bright Bluish Green | Bricks | 3003 | BRICK 2X2 | 60 | 2003 | 7863 | 1986 |
| 6323161 |
|
4 | Bright Bluish Green | Plates | 68568 | PLATE 3X3, 1/4 CIRCLE, W/ CUT OUT | 20 | 2021 | 317 | 2020 |
| 6345402 |
|
4 | Bright Bluish Green | Bricks | 3700 | TECHNIC BRICK 1X2, Ø4.9 | 19 | 2021 | 3425 | 1981 |
| 6491435 |
|
4 | Bright Bluish Green | Plates | 15535 | FLAT TILE 2x2 ROUND W. HOLE Ø4.85 | 6 | 2025 | 1346 | 2013 |
| 6513766 |
|
4 | Bright Bluish Green | Plates | 99207 | ANGULAR PLATE 1.5 BOT. 1X2 2/2 | 10 | 2024 | 2704 | 2012 |
| 6368255 |
|
1 | Bright Green | Minifigure Parts | 73200 | MINI LOWER PART | 22 | 2021 | 6163 | 1991 |
| 6368474 |
|
1 | Bright Green | Minifigure Parts | 76382 | MINI UPPER PART | 12 | 2021 | 10582 | 1993 |
| 6454720 |
|
1 | Bright Green | Minifigure Parts | 3274 | MINI HEAD | 13 | 2023 | 164 | 2023 |
| 9342 |
|
1 | Bright Red | Minifigure Parts | 73200 | MINI BODY LOWERPART RED | 280 | 1992 | 6163 | 1991 |
| 300121 |
|
2 | Bright Red | Bricks | 3001 | BRICK 2X4 | 678 | 1991 | 6881 | 1991 |
| 4544143 |
|
2 | Bright Red | Cables, Hoses & Strings | 85544 | V-BELT Ø 24, RED | 63 | 2002 | 63 | 2002 |
| 6323025 |
|
1 | Bright Red | Minifigure Parts | 76382 | MINI UPPER PART | 13 | 2020 | 10582 | 1993 |
| 6454716 |
|
1 | Bright Red | Minifigure Parts | 3274 | MINI HEAD | 15 | 2023 | 164 | 2023 |
| 6130007 |
|
6 | Bright Yellow | Connectors | 4519 | CROSS AXLE 3M | 546 | 2015 | 2219 | 1990 |
| 6331822 |
|
12 | Bright Yellow | Connectors | 3673 | CONNECTOR PEG | 187 | 2021 | 1635 | 1981 |
| 4106356 |
|
2 | Dark Green | Bricks | 3001 | BRICK 2X4 | 316 | 1997 | 6881 | 1991 |
| 6100027 |
|
2 | Flame Yellowish Orange | Bricks | 3001 | BRICK 2X4 | 70 | 2015 | 6881 | 1991 |
| 6215422 |
|
1 | Flame Yellowish Orange | Minifigure Parts | 73200 | MINI LOWER PART | 30 | 2018 | 6163 | 1991 |
| 6462327 |
|
1 | Flame Yellowish Orange | Minifigure Parts | 3274 | MINI HEAD | 10 | 2025 | 164 | 2023 |
| 6554630 |
|
1 | Flame Yellowish Orange | Minifigure Parts | 76382 | MINI UPPER PART | 10 | 2025 | 10582 | 1993 |
| 4655173 |
|
2 | Medium Lavender | Bricks | 3001 | BRICK 2X4 | 51 | 2013 | 6881 | 1991 |
| 4626935 |
|
4 | Medium Lilac | Bricks | 3001 | BRICK 2X4 | 60 | 2011 | 6881 | 1991 |
| 4653960 |
|
4 | Medium Lilac | Bricks | 3003 | BRICK 2X2 | 60 | 2012 | 7863 | 1986 |
| 6055875 |
|
4 | Medium Lilac | Bricks | 3298 | ROOF TILE 2X3/25° | 14 | 2014 | 1474 | 1991 |
| 6109931 |
|
2 | Medium Lilac | Plates | 3034 | PLATE 2X8 | 28 | 2015 | 4834 | 1980 |
| 6147004 |
|
2 | Medium Lilac | Bricks | 44237 | BRICK 2X6 | 13 | 2019 | 2447 | 1994 |
| 6334093 |
|
8 | Medium Lilac | Plates | 21712 | ANGLE PLATE 1X2 / 2X2 | 23 | 2021 | 2451 | 2008 |
| 4278273 |
|
8 | Medium Stone Grey | Plates | 2654 | SLIDE SHOE ROUND 2X2 | 402 | 2004 | 2395 | 1993 |
| 6301425 |
|
2 | Medium Stone Grey | Bricks | 42194 | PLATE 2X4/2X2X1 W. VERTICAL SN | 43 | 2013 | 70 | 2013 |
| 6609654 |
|
8 | Medium Stone Grey | Miscellaneous | 71752 | DESIGN PLATE 2X2X2/3, NO. 1 | 4 | 2026 | 256 | 2021 |
| 4211639 |
|
2 | Medium Stone Grey | Connectors | 32073 | CROSS AXLE 5M | 861 | 1993 | 1144 | 1993 |
| 6365577 |
|
4 | Multicombination | Bricks | 42929 | BRICK 2X2 W. SNAP AND CROSS | 20 | 2021 | 169 | 2010 |
| 6406522 |
|
4 | Multicombination | Bricks | 44865 | BRICK 1X2 W. HORIZONTAL SNAP | 52 | 2018 | 260 | 2010 |
| 6514281 |
|
6 | Transparent | Bricks | 39223 | BRICK Ø16 W. CROSS | 37 | 2022 | 368 | 2010 |
| 6167741 |
|
4 | Transparent Bright Orange | Minifigure Accessories | 28618 | DRAGON'S FIRE | 192 | 2014 | 286 | 2014 |
| 6305455 |
|
4 | Vibrant Coral | Plates | 3020 | PLATE 2X4 | 44 | 2020 | 13716 | 1980 |
| 6422920 |
|
4 | Vibrant Coral | Bricks | 3003 | BRICK 2X2 | 26 | 2023 | 7863 | 1986 |
| 6425367 |
|
2 | Vibrant Coral | Plates | 6636 | FLAT TILE 1X6 | 23 | 2023 | 4515 | 1996 |
| 6439447 |
|
4 | Vibrant Coral | Bricks | 31493 | BRICK 1X2 WITH CROSS HOLE | 13 | 2023 | 1579 | 2009 |
| 6598033 |
|
4 | Vibrant Coral | Plates | 7769 | PLATE 1X4X2/3, W/ CUTOUT | 2 | 2026 | 2 | 2026 |
| 6544409 |
|
4 | Vibrant Coral | Connectors | 59443 | CROSS AXLE, EXTENSION, 2M | 12 | 2025 | 2014 | 2005 |
| 300301 |
|
4 | White | Bricks | 3003 | BRICK 2X2 | 911 | 1994 | 7863 | 1986 |
| 370101 |
|
4 | White | Bricks | 3701 | TECHNIC BRICK 1X4, Ø4,9 | 192 | 1994 | 1730 | 1981 |
| 428601 |
|
4 | White | Bricks | 4286 | ROOF TILE 1X3/25° | 245 | 1994 | 2023 | 1990 |
| 4515347 |
|
4 | White | Plates | 60474 | PLATE 4X4 ROUND W. SNAP | 240 | 2008 | 1821 | 2008 |
| 4582543 |
|
4 | White | Bricks | 3702 | TECHNIC BRICK 1X8 | 42 | 1996 | 767 | 1981 |
| 6046381 |
|
4 | White | Miscellaneous | 15208 | 1X2 PLATE WITH 3 TEETH | 173 | 2014 | 386 | 2014 |
| 6339103 |
|
4 | White | Plates | 68568 | PLATE 3X3, 1/4 CIRCLE, W/ CUT OUT | 41 | 2021 | 317 | 2020 |
| 6522844 |
|
4 | White | Plates | 110720 | FLAT TILE 2X2, ROUND, NO. 1326 | 6 | 2025 | 6 | 2025 |
Colour summary
| Colour | Unique | Total |
|---|---|---|
| Black | 7 | 24 |
| Brick Yellow | 1 | 2 |
| Bright Blue | 4 | 5 |
| Bright Bluish Green | 6 | 24 |
| Bright Green | 3 | 3 |
| Bright Red | 5 | 7 |
| Bright Yellow | 2 | 18 |
| Dark Green | 1 | 2 |
| Flame Yellowish Orange | 4 | 5 |
| Medium Lavender | 1 | 2 |
| Medium Lilac | 6 | 24 |
| Medium Stone Grey | 4 | 20 |
| Multicombination | 2 | 8 |
| Transparent | 1 | 6 |
| Transparent Bright Orange | 1 | 4 |
| Vibrant Coral | 6 | 22 |
| White | 8 | 32 |
| Total | 62 | 208 |
Category summary
| Category | Unique | Total |
|---|---|---|
| Bricks | 23 | 80 |
| Cables, Hoses & Strings | 1 | 2 |
| Connectors | 5 | 26 |
| Minifigure Accessories | 1 | 4 |
| Minifigure Parts | 12 | 12 |
| Miscellaneous | 4 | 20 |
| Plates | 14 | 58 |
| Vehicles & Transportation | 2 | 6 |
| Total | 62 | 208 |