1990 was a common year beginning on a Monday of the Gregorian Calendar.
Events[]
- LEGO Malaysia is established.
- The 4.5V TECHNIC motors are phased out in favour of the 9V standard.
- The first computerized set appears in the form of 8094 TECHNIC Control Center
- 1990 was the final year that the "grey era" 12V trains system was on sale.
Themes introduced or discontinued[]
- M-Tron, a subtheme of Space, is introduced.
- Model Team is introduced.
- DUPLO Zoo is introduced.
- Forestmen is discontinued.
- Space Police I is discontinued.
- Blacktron I is discontinued.
- Futuron is discontinued.
Sets Introduced[]
Basic[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
535 | Basic Building Set 5+ | 345 | 2 | 1990 | |
 |
715 | Basic Building Set | 408 | 1990 | ||
 |
725 | Basic Building Set | 427 | 2 | 1990 | |
 |
730 | Basic Building Set | 420 | 1985 | ||
 |
735 | Basic Building Set | 537 | 1990 | ||
 |
1679 | Basic Building Set | 39 | 0 | 1990 |
Castle[]
Black Falcons[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
6018 | Battle Dragon | 49 | 2 | $4.50 | 1990 |
Black Knights[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
6034 | Black Monarch's Ghost | 48 | 2 | €5.99 | 1990 |
 |
6059 | Knight's Stronghold | 229 | 5 | $22.00 | 1990 |
Crusaders[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
6042 | Dungeon Hunters | 105 | 1 Knight, 1 Coachman, 1 Forestman | $12.75 | 1990 |
 |
6081 | King's Mountain Fortress | 429 | Crusader Archer (x2), Ghost, Crusader Knight (x2), Princess, Crusader Soldier (x2) | $57.99 | 1990 |
Forestmen[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
1680 | Crusader's Cart | 65 | 3 | 1990 | |
 |
1877 | Crusader's Cart | 61 | 2 Forestmen | 1990 | |
 |
6071 | Forestmen's Crossing | 203 | Forestmen (4×), Forestwoman | $28.50 | 1990 |
DUPLO[]
| Image | # | Set | Pieces | Figures | Price | Released |
| No image | 1482 | Panda and Friends | 26 | 1990 | ||
 |
1559 | Clown Car | 4 | Clown | 1990 | |
 |
1657 | Bird | 6 | 1990 | ||
 |
1672 | Circus | 18 | 2 | 1990 | |
 |
1674 | Pre-School Bucket | 100 | 1 DUPLO Figure | 1990 | |
 |
1684 | DUPLO Bucket | 54 | 3 DUPLO Figures | 1990 | |
 |
1800 | Turtle | 6 | 1990 | ||
 |
1883 | Rabbit Rattle | 1 | 1990 | ||
 |
2074 | Rattle and Gift Activity Set | 11 | 1990 | ||
 |
2442 | School Room | 9 | 2 DUPLO Figures | 1990 | |
 |
2446 | LEGO PreSchool Windmill | 12 | 1 DUPLO Figure | 1990 | |
| No image | 2450 | Airport | 14 | 1990 | ||
| No image | 2454 | Harbor | 15 | 1990 | ||
 |
2458 | Barnyard | 20 | 2 | 1990 | |
 |
2550 | Tom's Adventure | 5 | 1 | 1990 | |
 |
2609 | Racer | 2 | 1 DUPLO Figure | 1990 | |
 |
2613 | Refuse Truck | 4 | 1 DUPLO Figure | 1990 | |
 |
2630 | Camping Set | 12 | 3 DUPLO figures | 1990 | |
 |
2661 | Animal Transporter | 4 | 1 | 1990 | |
 |
2662 | Crocodile and Sea Lion | 15 | 1 DUPLO Figure | 1990 | |
 |
2664 | Tiger Enclosure | 25 | 1 DUPLO Figure | 1990 | |
 |
2666 | Mini Zoo | 28 | 1 DUPLO figure | 1990 | |
 |
2668 | Zoo | 41 | 1 DUPLO Figure | 1990 | |
 |
2669 | Maxi Zoo | 69 | 4 DUPLO Figures | 1990 |
Model Team[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
5590 | Whirl N' Wheel Super Truck | 1063 | $79.99 | 1990 |
Space[]
Blacktron[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
1875 | Meteor Monitor | 29 | Blacktron Astronaut | 1990 | |
 |
Pc90bc1 | Blacktron Post Card | 1 | 1990 |
Futuron[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
1616 | Space Combi-Pack | 120 | Blue Futuron Astronaut, Yellow Futuron Astronaut | $10.00 | 1989 |
 |
1620 | Astro Dart | 30 | Yellow Futuron Astronaut (1) | $2.49 | 1989 |
 |
1621 | Lunar MPV Vehicle | 102 | Blue Futuron Astronaut | 1990 |
M-Tron[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
6811 | Pulsar Charger | 25 | M-Tron Astronaut | $3.00 | 1990 |
 |
6833 | Beacon Tracer | 38 | M-Tron Astronaut | $3.00 | 1990 |
 |
6877 | Vector Detector | 62 | M-Tron Astronaut | 1990 | |
 |
6896 | Celestial Forager | 87 | M-Tron Astronaut | 1990 | |
 |
6923 | Particle Ionizer | 187 | M-Tron Astronaut, M-Tron Robot | $24.00 | 1990 |
 |
6956 | Stellar Recon Voyager | 221 | M-Tron Astronaut(x2) | $36.00 | 1990 |
 |
6989 | Mega Core Magnetizer | 486 | M-Tron Astronaut (x3) | $59.99 | 1990 |
 |
KC16 | M:Tron Key Chain | 1 | 1990 |
Pirates[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
5150 | Pirate Accessories | 27 | $3.25 | 1990 | |
 |
KC18 | Imperial Soldier Key Chain | ??? | Governor Broadside | 1990 |
Service Packs[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
5110 | Cross Axles, Nuts | 26 | $10.75 | 1990 | |
 |
5111 | 9V Motor Wire, 128cm | 1 | $3.99 | 1990 | |
 |
5113 | TECHNIC Propeller | 1 | 1990 | ||
 |
5114 | Technic Motor 9V | 1 | $16.00 | 1991 | |
 |
5255 | Connector Pegs | 30 | 1989 | ||
 |
5257 | Connector Pegs, Toggle Joints and Wheels | 25 | 1989 | ||
 |
5258 | Crown Wheels, Gear Racks, Point Wheels, Worm Gears | 10 | 1989 | ||
 |
5259 | Universal Joint, Rubber Bands and Wheels | 12 | 1989 | ||
 |
5260 | Connecting Rods and Stop Bushes | 32 | $1.54 | 1989 | |
 |
5261 | Plates and Gear Racks | 14 | 1989 | ||
 |
5262 | Gear Wheels | 9 | 1989 | ||
 |
5263 | Universal Joint, Differential Housing and Point Wheels | 6 | 1989 |
TECHNIC[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
8064 | Motorized Universal Building Set | 219 | $54.99 | 1990 | |
 |
8094 | TECHNIC Control Center | 554 | 1990 | ||
 |
8720 | 9V Motor Set | 57 | $35.99 | 1990 | |
 |
8825 | Night Chopper | 116 | 1990 | ||
 |
8830 | Rally 6-wheeler | 169 | 1 | 1990 | |
 |
8840 | Rally Shock & Roll Racer | 225 | 1 | 1990 | |
 |
8850 | Rally Support Truck | 354 | 1 | 1990 |
Town[]
| Image | # | Set | Pieces | Figures | Price | Released |
 |
1630 | Helicopter | 27 | 1990 | ||
 |
1631 | Black Race Car | 23 | 1990 | ||
 |
1632 | Speedboat | 28 | 1990 | ||
 |
1633 | Front-End Loader | 24 | 1990 | ||
 |
1665 | Dual FX Racers | 108 | Eddie Octane, Race Driver, Starter | $8.75 | 1990 |
 |
1682 | Space Shuttle | 392 | 3 | 1990 | |
 |
1691 | Racer | 23 | 1990 | ||
 |
1876 | Soil Scooper | 73 | 2 | 1990 | |
 |
1973 | Emirates Airliner | 223 | 2 | $19.99 | 1990 |
 |
6354 | Pursuit Squad | 179 | 3 | $15.50 | 1990 |
 |
6375 | Trans Air Carrier | 126 | 2 | 1990 | |
 |
6376 | Breezeway Café | 183 | Chef, Person (x3), Waiter | $29.99 / €39.99 | 1990 |
 |
6396 | International Jetport | 485 | 8 | 1990 | |
 |
6399 | Airport Shuttle | 743 | 9 | 1990 | |
 |
6508 | Wave Racer | 35 | 1 | 1990 | |
 |
6529 | Ultra Lite I | 28 | 2 | 1990 | |
 |
6592 | Vacation Hideaway | 111 | 2 | €24.99 | 1990 |
 |
6644 | Road Rebel | 72 | Motorcycle Driver | $6.00 | 1990 |
 |
6672 | Safari Off-Road Vehicle | 66 | 2 | $3.25 | 1990 |
 |
6673 | Solo Trainer | 65 | 1 | $8.00 | 1990 |
|
1876 | Soil Scooper | 73 | 2 | 1990 |