![Amazon.com: MAYS TOYAN FS-L400 14cc Inline Four-Cylinder Four-Stroke Water-Cooled Nitro Engine Model, Science Toy DIY Assembly Kit for 1:8 1:10 1:12 1:14 RC Model Car Ship Airplane - KIT Version : Toys Amazon.com: MAYS TOYAN FS-L400 14cc Inline Four-Cylinder Four-Stroke Water-Cooled Nitro Engine Model, Science Toy DIY Assembly Kit for 1:8 1:10 1:12 1:14 RC Model Car Ship Airplane - KIT Version : Toys](https://m.media-amazon.com/images/I/61axeDlqYYL.jpg)
Amazon.com: MAYS TOYAN FS-L400 14cc Inline Four-Cylinder Four-Stroke Water-Cooled Nitro Engine Model, Science Toy DIY Assembly Kit for 1:8 1:10 1:12 1:14 RC Model Car Ship Airplane - KIT Version : Toys
![Amazon.com: LETOY TECHING Inline 4 Cylinder Engine Kit, 300+Pcs 1:10 Metal Engine DIY Assembly Kit, OHV Inline Diesel Engine Model with Cooling System Educational Toys Gifts for Kids & Adults : Toys Amazon.com: LETOY TECHING Inline 4 Cylinder Engine Kit, 300+Pcs 1:10 Metal Engine DIY Assembly Kit, OHV Inline Diesel Engine Model with Cooling System Educational Toys Gifts for Kids & Adults : Toys](https://m.media-amazon.com/images/I/51XcTpVRLML.jpg)
Amazon.com: LETOY TECHING Inline 4 Cylinder Engine Kit, 300+Pcs 1:10 Metal Engine DIY Assembly Kit, OHV Inline Diesel Engine Model with Cooling System Educational Toys Gifts for Kids & Adults : Toys
![Amazon.com: Diesel Engine Model, Internal Combustion Engine Model, 4 Stroke Internal Combustion Engine Model Kit, for Middle School Physics Course Experiment Teaching Amazon.com: Diesel Engine Model, Internal Combustion Engine Model, 4 Stroke Internal Combustion Engine Model Kit, for Middle School Physics Course Experiment Teaching](https://m.media-amazon.com/images/I/519qL6yr5hL.jpg)