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Fully Functional L4 Diesel Engine Model Kit – Build Your Own Working Diesel Engine – 1:10 Scale Full Metal Mini L4 4-Cylinder OHV Engine – 300+ Pieces

$349.99

Teching Engine Assembly Kit: Full Metal 4-Cylinder Car Engine Building Kit for STEM Education and Gift Collection – Enginediy

$469.99

V8 Engine Cooling Fan, Radiator, Motor, and Hood Kit for 1/10 RC Car

$31.49

V8 RC Engine Cooling Fan Kit with Radiator, Motor, and Hood for 1/10 Scale Cars (GRC LS7 Motor)

$34.99

3D Printed AeroTurbofan Engine STEM DIY Educational Motorized Engine Model

$35.99

1/10 RC Car V8 Engine Fan Radiator Motor and Hood Kit for GRC 1976 F76 Motor

$36.99

V8 Engine Model Kit with Hood, Fan, Radiator, Intake, and Motor for 1/10 RC Cars (GRC FST Motor Compatible)

$36.99

V8 Engine Model Kit with Cooling Fan and Hood Fan Radiator for Traxxas TRX-4

$40.49

Single Cylinder Electromagnetic Engine Model Kit with Cannon | Operable 6-12V Physics Experiment

$58.49

Smithsonian Jet Engine Model Kit: Build Your Own Realistic Turbofan Jet Engine

$67.99

Smithsonian Motor Works Advanced Science Kit: Build Your Own 4-Cylinder Internal Combustion Engine Model

$71.99

DIY Model Engine Combustion Kit – STEM Science Education 4 Cylinder Engine Assembly

$71.99

DIY V8 Engine Model Kit – Educational STEM Science Toy

$76.49

TECHING 3D Metal Puzzle: Swinging Santa Claus Model with Color-Changing Lights ?C Christmas Gift, 100+ Pieces for DIY Assembly

$77.99

1/8 Scale Model V8 Engine Kit – Build and Customize Your Own Working V8 Engine

$89.99

Complete V4 Engine Model Kit – Build Your Own Working V4 Engine – Educational STEM Toy

$89.99