| Image | Item No. | Description |
| 3722-2 (Inv) | Treasure Tomb
147 Parts, 3 Minifigures, 1998
Catalog: Sets: Adventurers: Desert |
| 3030-1 (Inv) | 25th Anniversary Silver Tub
144 Parts, 1998
Catalog: Sets: DUPLO: Basic Set |
| 3571-1 (Inv) | Blackmobile with motor
143 Parts, 1998
Catalog: Sets: Znap |
| 3763-1 (Inv) | 35 Year Anniversary Tub
142 Parts, 1998
Catalog: Sets: DUPLO: Basic Set |
| 6426-1 (Inv) | Super Cycle Center
142 Parts, 4 Minifigures, 1998
Catalog: Sets: Town: Town Jr.: Traffic |
| 2554-1 (Inv) | Formula 1 Pit Stop
141 Parts, 5 Minifigures, 1998
Catalog: Sets: Town: Classic Town: Race |
| 3037-1 (Inv) | Strata Tub
140 Parts, 1998
Catalog: Sets: DUPLO: Basic Set |
| 2234-1 (Inv) | Police Chase
134 Parts, 5 Minifigures, 1998
Catalog: Sets: Town: Town Jr.: Traffic |
| 6451-1 (Inv) | River Response
132 Parts, 3 Minifigures, 1998
Catalog: Sets: Town: Res-Q |
| 5847-1 (Inv) | Surfers' Paradise
131 Parts, 3 Minifigures, 1998
Catalog: Sets: Belville: Recreation |
| 3552-1 (Inv) | Hover Sub with motor
126 Parts, 1998
Catalog: Sets: Znap |
| 2718-1 (Inv) | Aircraft and Ground Crew
125 Parts, 3 Minifigures, 1998
Catalog: Sets: Town: Classic Town: Airport |
| 3314-1 (Inv) | Stadium Security
125 Parts, 4 Minifigures, 1998
Catalog: Sets: Sports: Soccer |
| 6329-1 (Inv) | Truck Stop Café {Cafe}
125 Parts, 3 Minifigures, 1998
Catalog: Sets: Town: Town Jr.: Traffic |
| 2532-1 (Inv) | Aircraft and Ground Crew
124 Parts, 3 Minifigures, 1998
Catalog: Sets: Town: Classic Town: Airport |
| 9194-1 (Inv) | Giant Duplo Dinosaur Set
123 Parts, 6 Minifigures, 1998
Catalog: Sets: Educational & Dacta: DUPLO: Dino |
| 8226-1 (Inv) | Mud Masher
121 Parts, 1998
Catalog: Sets: Technic: Model: Off-Road |
| 8233-1 (Inv) | Blue Thunder Vs. The Stinger
118 Parts, 1 Minifigure, 1998
Catalog: Sets: Technic: Competition |
| 8239-1 (Inv) | Cyber Challenge
118 Parts, 1 Minifigure, 1 Gear, 1998
Catalog: Sets: Technic: Competition |
| 3118-1 (Inv) | Funky Fashion Boutique
118 Parts, 1 Minifigure, 1998
Catalog: Sets: Scala |
| 2224-1 (Inv) | Tubular Chest
116 Parts, 2 Minifigures, 1998
Catalog: Sets: DUPLO: Basic Set |
| 9083-1 (Inv) | Basic Discovery Set (Tubes)
112 Parts, 6 Minifigures, 1998
Catalog: Sets: Educational & Dacta: DUPLO: Basic Set |
| 9937-1 (Inv) | Small Chain Links
108 Parts, 1998
Catalog: Sets: Educational & Dacta: Service Packs: Technic |
| 6905-1 (Inv) | Bi-Wing Blaster
105 Parts, 2 Minifigures, 1998
Catalog: Sets: Space: Insectoids |
| 8219-1 (Inv) | Racer
104 Parts, 1998
Catalog: Sets: Technic: Model: Race |
| 9189-1 (Inv) | Animal and Fun Park
102 Parts, 3 Minifigures, 1998
Catalog: Sets: Educational & Dacta: DUPLO: DUPLO, Town: Zoo |
| 3442-1 (Inv) | Legoland California Truck, Limited Edition
102 Parts, 1 Minifigure, 1998
Catalog: Sets: Town: Classic Town: Traffic |
| 2148-2 (Inv) | LEGO Truck (Lego Toy Fair 1998 25th Anniversary Edition)
101 Parts, 1 Minifigure, 1998
Catalog: Sets: Town: Classic Town: Traffic |
| 6045-1 (Inv) | Ninja Surprise
100 Parts, 3 Minifigures, 1998
Catalog: Sets: Ninja |
| 6580-1 (Inv) | Land Jet 7
98 Parts, 2 Minifigures, 1998
Catalog: Sets: Town: Extreme Team |
| 8213-1 (Inv) | Spy Runner
98 Parts, 1998
Catalog: Sets: Technic: Model: Race |
| 6150-1 (Inv) | Crystal Detector
97 Parts, 1 Minifigure, 1998
Catalog: Sets: Aquazone: Hydronauts |
| 6159-1 (Inv) | Crystal Detector
97 Parts, 1 Minifigure, 1998
Catalog: Sets: Aquazone: Hydronauts |
| 9654-1 (Inv) | Early Simple Machines II (Primary Simple Machines Set)
97 Parts, 2 Minifigures, 13 Books, 3 Gear, 1998
Catalog: Sets: Educational & Dacta: DUPLO: Learning |
| 9958-1 (Inv) | Special Elements for Control Lab Building Set (Special Elements For 979701)
97 Parts, 1998
Catalog: Sets: Educational & Dacta: Service Packs: Special Element Sets |
| 6445-1 (Inv) | Emergency Evac (Emergency Evacuation)
93 Parts, 1 Minifigure, 1998
Catalog: Sets: Town: Res-Q |
| 6328-1 (Inv) | Helicopter Transport
93 Parts, 2 Minifigures, 1998
Catalog: Sets: Town: Town Jr.: Police |
| 3313-1 (Inv) | Light Poles
92 Parts, 1 Minifigure, 1998
Catalog: Sets: Sports: Soccer |
| 9815-1 (Inv) | Basic Bulk
91 Parts, 1 Minifigure, 1998
Catalog: Sets: Educational & Dacta: DUPLO: Basic Set |
| 3311-1 (Inv) | Camera Tower
91 Parts, 2 Minifigures, 1998
Catalog: Sets: Sports: Soccer |
| 9730-1 (Inv) | RoboSports
91 Parts, 1 Gear, 1998
Catalog: Sets: MINDSTORMS: RCX |
| 6907-1 (Inv) | Sonic Stinger
91 Parts, 1 Minifigure, 1998
Catalog: Sets: Space: Insectoids |
| 6909-1 (Inv) | Sonic Stinger with Promotional Mask
91 Parts, 1 Minifigure, 1 Gear, 1998
Catalog: Sets: Space: Insectoids |
| 9133-1 (Inv) | Farm
90 Parts, 6 Minifigures, 1998
Catalog: Sets: Educational & Dacta: DUPLO: DUPLO, Town: Farm |
| 2278-1 (Inv) | Large Bucket
90 Parts, 1 Minifigure, 1998
Catalog: Sets: DUPLO: Basic Set |
| 2531-1 (Inv) | Rescue Helicopter and Jeep
90 Parts, 2 Minifigures, 1998
Catalog: Sets: Town: Classic Town: Recreation |
| 5846-1 (Inv) | Desert Island (My Secret Island)
89 Parts, 2 Minifigures, 1998
Catalog: Sets: Belville: Recreation |
| 2704-1 (Inv) | Fire Vehicle
89 Parts, 1 Minifigure, 1998
Catalog: Sets: DUPLO: Basic Set: Fire |
| 2269-1 (Inv) | Large Bucket
89 Parts, 1 Minifigure, 1998
Catalog: Sets: DUPLO: Basic Set |
| 6424-1 (Inv) | Rig Racers
87 Parts, 3 Minifigures, 1998
Catalog: Sets: Town: Town Jr.: Race |