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Smithsonian Motor Works Advanced Science Kit - Build Your Own 4 Cylinder Engine Model Kit - DIY Assembly Combustion Engine Kit Save $10.00 (13% OFF)
Smithsonian Motor Works Advanced Science Kit - Build Your Own 4 Cylinder Engine Model Kit - DIY Assembly Combustion Engine Kit
$69.99
$79.99
Stock:302
Popularity:9653
M93 Horizontal Water-cooled Miniature Gasoline Engine Upgraded Hit & Miss Combustion Engine Speed Adjustable Save $40.00 (12% OFF)
M93 Horizontal Water-cooled Miniature Gasoline Engine Upgraded Hit & Miss Combustion Engine Speed Adjustable
$299.99
$339.99
Stock:302
Popularity:9511
CISON L4 OHV 20.5cc Inline 4-Cylinder 4-Stroke Water-Cooled Gasoline Engine Model Kit-Speed Up to 11500rpm Save $100.00 (10% OFF)
CISON L4 OHV 20.5cc Inline 4-Cylinder 4-Stroke Water-Cooled Gasoline Engine Model Kit-Speed Up to 11500rpm
$899.99
$999.99
Stock:302
Popularity:9482
M31B 1.85CC Mini Retro Vertical Single-cylinder Reciprocating Double-acting Steam Engine Model Toys Save $30.00 (10% OFF)
M31B 1.85CC Mini Retro Vertical Single-cylinder Reciprocating Double-acting Steam Engine Model Toys
$259.99
$289.99
Stock:302
Popularity:8597
CISON Mini DC Generator + Rectifier + Fixed Bracket DIY Modification Accessory Set for CISON Four Cylinder Engine Models Save $10.00 (13% OFF)
CISON Mini DC Generator + Rectifier + Fixed Bracket DIY Modification Accessory Set for CISON Four Cylinder Engine Models
$69.99
$79.99
Stock:303
Popularity:12204
ENJOMOR Vintage γ-Type Stirling Engine Kit with Luminous Flywheel - STEM Toy Save $5.00 (13% OFF)
ENJOMOR Vintage γ-Type Stirling Engine Kit with Luminous Flywheel - STEM Toy
$34.99
$39.99
Stock:303
Popularity:10234
Balance Stirling Engine Model Kit - Build Your Own Stirling Engine - Hot Air Stirling Model Engine Educational Toy Save $10.00 (13% OFF)
Balance Stirling Engine Model Kit - Build Your Own Stirling Engine - Hot Air Stirling Model Engine Educational Toy
$69.99
$79.99
Stock:303
Popularity:9952
CISON V2 Engine V-twin 2-Cylinder 4-Stroke Air-Cooled Gasoline Engine Motorcycle RC Engine Model - Panhead & Shovelhead Collection Save $50.00 (8% OFF)
CISON V2 Engine V-twin 2-Cylinder 4-Stroke Air-Cooled Gasoline Engine Motorcycle RC Engine Model - Panhead & Shovelhead Collection
$549.99
$599.99
Stock:303
Popularity:9599
3D Printed Functional Nacelle Thrust Reverser Turbofan Engine Model-Build Your Own Turbofan Engine that Works Save $30.00 (11% OFF)
3D Printed Functional Nacelle Thrust Reverser Turbofan Engine Model-Build Your Own Turbofan Engine that Works
$239.99
$269.99
Stock:303
Popularity:9393
CISON FG-VT157 15.7cc Mini OHV V-twin V2 Shovelhead Engine 4-Stroke Air-cooled Gasoline Engine Motorcycle RC Engine Model Save $50.00 (8% OFF)
CISON FG-VT157 15.7cc Mini OHV V-twin V2 Shovelhead Engine 4-Stroke Air-cooled Gasoline Engine Motorcycle RC Engine Model
$549.99
$599.99
Stock:303
Popularity:9077
ENJOMOR L4 Engine GS-L4 36cc DOHC Inline 4 Cylinder 4 Stroke Water-Cooled L4 RC Gasoline Engine Model that Works - Speed Up to 12,000rpm Save $100.00 (10% OFF)
ENJOMOR L4 Engine GS-L4 36cc DOHC Inline 4 Cylinder 4 Stroke Water-Cooled L4 RC Gasoline Engine Model that Works - Speed Up to 12,000rpm
$899.99
$999.99
Stock:303
Popularity:8770
ENJOMOR Antique Metal Steam-Powered Car Model Retro Steam Engine Model Car STEM Toy Christmas Gift Collection Save $50.00 (25% OFF)
ENJOMOR Antique Metal Steam-Powered Car Model Retro Steam Engine Model Car STEM Toy Christmas Gift Collection
$149.99
$199.99
Stock:303
Popularity:8662
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