Conquer every mountain, rock, and trail with the LEGO [Technic] - 4x4 Crawler Building Set (9398) — a powerhouse of performance, design, and engineering brilliance. Built for rugged adventure, this motorized crawler brings authentic 4-wheel drive and 4-wheel steering to your fingertips with the LEGO Power Functions infrared remote control. Its extreme suspension system and realistic movement let it scale steep slopes and navigate rough terrain like a true off-road beast.
Every detail is engineered for realism — from opening doors and a removable top section to the robust frame that absorbs every bump and twist. With two powerful L-motors, a servo motor, a battery box, and an infrared receiver, this model combines mechanical mastery with immersive play. Once you’ve mastered the terrain, rebuild it into a tough 4x4 off-road truck to double the fun and challenge.
Standing over 8 inches tall and stretching 15 inches long, this 2-in-1 build delivers hours of thrilling control, learning, and creativity. Whether displayed as a technical marvel or raced through homemade obstacle courses, the Technic 4x4 Crawler is the ultimate experience for LEGO fans who crave performance and precision engineering.
4x4 Crawler Building Set from LEGO
Protective Packaging
Be the king of the hills with this ultra-rugged motorized 4x4 Crawler!
Take on even the toughest terrain with this realistic 4x4 Crawler. Operate the 4-wheel steering and 4-wheel drive using the supplied LEGO® Power Functions infrared remote control! Then ride the roughest rocks with the high-performance extreme suspension. This heavy-duty model also features opening doors and top section. Rebuild it into a tough 4x4 off-road truck!
- Features motorized 4-wheel steering and 4-wheel drive, extreme suspension, opening doors and top section
- 2 models in 1: rebuilds into a tough 4x4 off-road truck
- Includes 2 LEGO® Power Functions L-motors, servo motor, battery box, remote control and infrared receiver
- Use the remote control!
- Steer the wheels!
- Open the doors!
- Building instructions for 4x4 Crawler included. Download instructions to rebuild into a 4x4 off-road truck at technic.lego.com
- 4x4 Off-road Truck features extreme suspension and LEGO Power Functions 4-wheel drive and 4-wheel steering with remote control
- 4x4 Crawler measures over 8” (21cm) high, 15” (39cm) long and 8” (21cm) wide
- 4x4 off-road truck measures over 11” (28cm) high, 14” (36cm) long and 8” (21cm) wide