National Geographic 4-Cylinder Engine Building Kit – 175+ Piece Working Model with Moving Parts, Clear Visible Engine Model, STEM Building Toy with Tools & Learning Guide for Kids

Price: $49.99 - $47.53
(as of Jul 05, 2026 23:25:18 UTC – Details)

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Your purchase has purpose!

Every purchase helps support the global nonprofit National Geographic Society in its work to protect and illuminate our world through exploration, research, and education.

BUILD YOUR OWN ENGINE – Assemble a clear 4-cylinder engine model kit with 175+ durable pieces. A fun DIY engineering toy engine that shows how pistons, valves, and gears really move.
WORKING MODEL ENGINE – Install 3 AA batteries (not included), press start, and see this visible engine model kit come to life as pistons, valves, and gears move just like a real car engine.
COMPLETE STEM ACTIVITY KIT – This kids engine build kit includes everything needed: 175+ parts, tools, illustrated instructions, and a Learning Guide for an engaging STEM toy experience.
FUN & EDUCATIONAL – Encourages problem-solving skills and curiosity while teaching kids about mechanics and engineering. Perfect model engine kit for young builders and hobby kits for boys and girls.
GREAT STEM GIFT – An exciting engine building kit for kids who love cars, building toys, and model kits. Inspires creativity and discovery through hands-on STEM play!
AWARD-WINNING PRODUCTS – Blue Marble, winner of the Toy Association’s prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!

Product summary

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