engineering kit best sellers

#1 2.0 Paper Airplane Conversion POWERUP 2.0 Paper Airplane Conversion Kit | Electric Motor for DIY Paper Planes | Fly Longer and Farther | Perfect for Kids & Adults | Ready to Use Aeroplane Engine Kits

$19.99 on Amazon

#2 2.0 New Paper Airplane POWERUP 2.0 New Paper Airplane Conversion Kit | Electric Motor for DIY Paper Planes | Fly Longer and Farther | Perfect for Kids & Adults | Ready to Use Aeroplane Engine Kits

$19.99 on Amazon

#3 🔥 STEM kit Airplane Launcher PATHFINDERS STEM kit Airplane Launcher Paper Airplane Engineering kit for Kids Ages 12-14 Wood Building Kits Educational Toys for Kids Science kit for Kids Age 12-14 stem Projects

$26.95 on Amazon

#4 STEM Kits for Kids Age CYOEST STEM Kits for Kids Age 8-10-12-14, Science Kits for Kids Age 8-12, STEM Toys Gifts for Boys Age 8 9 10 12 13 14, Car Building Science Experiment Projects for Kids 9-12, Solar Power & Engineering Kit

$16.99 on Amazon

#5 STEM Kits for Kids Age CYOEST STEM Kits for Kids Age 8-10-12-14, Science Projects for Kids Ages 8-12, Stem Building Toys for Boys Age 8 9 10 12 13 14, Solar Car & STEM Activities Engineering Kits, Diy Kits for Kids, Gifts for Boys

$16.99 on Amazon

#6 Model Engine Kit for Discovery #Mindblown Model Engine Kit for Children, with Moving Motor Parts and LED Lights

$29.97 on Walmart

#7 🔥 Bike Motor Kit 80cc Motorized IMAYCC Bike Motor Kit 80cc Motorized Bike Kit 2 Stroke Bicycle Engine Kit with Wired Digital Computer Fit for 26-28" Bikes

$128.99 on Amazon

#8 STEM Kits for Kids Ages SCAEMO STEM Kits for Kids Ages 8-10-12-14, Stem Toys For Boys Age 8-12, Science Projects For Kids Ages 8-12, Solar Car Building Kits for Boys, Activities Engineering Kit, Gifts For 8 9 10 11 12 Year Old Boys

$16.99 on Amazon

#9 Bike Motor Kit 80cc Motorized IMAYCC Bike Motor Kit 80cc Motorized Bike Kit 2 Stroke Bicycle Engine Kit with Wired Digital Computer Fit for 26-28" Bikes

$129.99 on Amazon

#10 98cc Engine Kit Coleman 98cc Engine Kit, Coleman CT100

$119.95 on Ebay

#11 🔥 Covers Engine Kit Motor Lingdu Covers Engine Kit Motor Primary Bolts Head Caps Aluminum for Touring Road King Street Glide 2017-2020 Softail Twin Cam (Pack of 62), Bolt Covers Topper Caps, Flat Chrome

$55.99 on Amazon

#12 🔥 🆕 125CC 4 Stroke Engine EBIKESTAR 125CC 4-Stroke Engine Motor Kit, Engine with Air-Cooled & Carburetor, Motorcycle Engine Kit, 4-Speed Transmission Engine for Honda CRF50/CRF70/XR50/XR70 & Go Kart

$248.99 on Amazon

#13 212CC 4 valves engine better 212CC 4 valves engine,better than Daytona 190CC engine, free engine kit

$1209 on Ebay

#14 V8 Combustion Engine Playz V8 Combustion Engine Model Kit That Runs - Build Your Own STEM Mini V8 Model Engine Kit for Adults & Kids Age 12+, Visible V8 Mini Engine Kit That Works for Adult w/ 270 STEM Parts

$69.95 on Amazon

#15 🆕 V8 Engine Model Kit That V8 Engine Model Kit That Runs, V8 Engine Model Kit That Works, Mini Engine Build Kit, Model Engine Kit for Adults (1pcs)

$131.88 on Walmart

#16 🔥 🆕 49cc 50cc 2 Stroke Racing SIOHDAGU 49cc 50cc 2 Stroke Racing Engine Motor, Single Cylinder Pull Rope Start Motor, 2 Stroke Gasoline Engine for Dirt Bike Pocket Bike ATV Scooters, Pocket Bike Engine Kits

$56.99 on Amazon

#17 🔥 2 Stroke Pedal Cycle Sange 2 Stroke Pedal Cycle Petrol Gas Motor Conversion Kit Air Cooling Motorized Engine Kit for Motorized Bike (110cc,Silver)

$147.99 on Amazon

#18 🆕 kjfeif V8 Combustion kjfeif V8 Combustion Engine Model Kit That Runs - Build Your Own STEM Mini V8 Model Engine Kit for Adults & Kids Age 12+, Visible V8 Mini Engine Kit That Works

$25.24 on Walmart

#19 🔥 Re Ring Rering Overhaul GUARDIAN ENGINE KITS Re-Ring Rering Overhaul Kit with tri-Metal Bearings Gaskets & Seals Compatible with 1968-84 SBC Chevy 350

$175.82 on Amazon

#20 🔥 2 Stroke Cycle Petrol Sange 2 Stroke Cycle Petrol Bike Gas Motor Conversion Kit Air Cooling Motorized Engine Kit (80cc,Red)

$102.99 on Amazon