Computer Science & AI Replacement Pack for Year 7-9

Notable parts

• 5 parts appear in only a few other sets: Brick Round 2 x 2 D. Tube with 45° Elbow and Axle Holes (Crossholes) at Each… (Trans-Clear) ×4 — also in 45522 Computer Science & AI Kit Year 7-9 (all Educational and Dacta); Technic Rubber Belt Extra Large [Round Cross Section] (Light Bluish Gray) ×2 — also in 45522 Computer Science & AI Kit Year 7-9, 45834 FIRST LEGO League Future Edition Key Stage 2-3 (KS2-3): Ages 7-14 (Years 3-9); Pulley, 2-Stage (Black) ×4 — also in 45521 Computer Science & AI Kit Year 4-6, 45522 Computer Science & AI Kit Year 7-9, 45546 Computer Science & AI Replacement Pack for Year 4-6 (all Educational and Dacta); Tile Round 2 x 4 (Coral) ×4 — also in 45520 Computer Science & AI Kit Year 1-3, 45522 Computer Science & AI Kit Year 7-9, 45545 Computer Science & AI Replacement Pack for Year 1-3 (all Educational and Dacta); Technic Brick 5 x 6 Right Angle Double (White) ×2 — also in 45520 Computer Science & AI Kit Year 1-3, 45521 Computer Science & AI Kit Year 4-6, 45522 Computer Science & AI Kit Year 7-9, 45546 Computer Science & AI Replacement Pack for Year 4-6 (all Educational and Dacta).
• 4 parts are otherwise only found in Educational and Dacta sets: Plate Special 1 x 4 x 2/3 with 1 x 2 Bottom Cutout (Coral) ×4; Plate Special 2 x 2 with Rubber Foot (Black) ×4; Technic Brick 2 x 4 with 4 Pin Holes, 2 Pins (White) ×2; Torso, Bright Light Orange Arms, Bright Light Orange Hands [Plain] (Bright Light Orange).
• 4 moulds first came out in 2026, including in this set: Plate Special 1 x 4 x 2/3 with 1 x 2 Bottom Cutout ×4; Pulley, 2-Stage ×4; Technic Brick 2 x 4 with 4 Pin Holes, 2 Pins ×2; Technic Rubber Belt Extra Large [Round Cross Section] ×2.
• 4 existing moulds first came out in their colour in 2026, including in this set: Plate Special 2 x 2 x 2/3 with Axle Hole and Grill on Sides (Haybale) (Light Bluish Gray) ×6; Brick Round 2 x 2 D. Tube with 45° Elbow and Axle Holes (Crossholes) at Each… (Trans-Clear) ×4; Tile Round 2 x 4 (Coral) ×4; Technic Brick 5 x 6 Right Angle Double (White) ×2.

Calculated from Rebrickable’s public set inventories, excluding sticker sheets and spare parts.