Engines: The Inner Workings of Machines That Move the World

Playz

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

BseSparklion

BseSparklion V8 Engine Model Kit That Runs, Build Your Own Mini Visible Car Motor, Physical Science Experiment Building Set for Adults & Teens, STEM Toy Gift for Boys 14+ (703 PCS)

BseSparklion

BseSparklion V8 Engine Model Kit That Runs, Visible Mini Car Motor Building Blocks Set for Adults, Compatible with Lego, STEM Physical Science Educational Toy for Teens Boys 14+ (905 PCS)

ANCEL

ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool, Read and Clear Error Codes for 1996 or Newer OBD2 Protocol Vehicle (Black)

Sunnytech

Sunnytech Low Temperature Stirling Engine Motor Steam Heat Education Model Toy Kit For mechanical skills (LT001)

maXpeedingrods

maXpeedingrods 7HP 212cc Gas Engine, 4 Stroke OHV Horizontal Shaft Gasoline Engine, Shaft 3/4" (19mm) Diameter, Shaft 3/16" Keyway for Go-Karts Compressors Lawn Mowers Water Pumps

Tuajixz

Tuajixz V8 Engine Building Blocks Sets, V8 Engine Model Kit That Runs – Motorized with Moving Pistons, Crankshaft & Rotating Fan, Realistic Engine Simulation for Car Enthusiasts, 588Pcs

Suplanet

Suplanet V8 Engine Building Kit That Works, Build Your Own Model Engine for Adult,8-Cylinder Car Engine with Spray & Light, Building Engineering Toys for Kids, Adults (3168PCS)

BseSparklion

BseSparklion Diesel Engine Model Kit That Runs for Adults, MOC Mini Inline 4-Cylinder Diesel Engine Building Set with Motor, Compatible with Lego, Mechanical Engineering STEM Toy for Teens (1029 PCS)

Aceup Energy

Aceup Energy 7HP 212cc Gas Engine Horizontal Shaft, 4 Stroke OHV Gas Motor, Shaft 3/4" (19mm) Diameter Recoil Start

Mould King

Mould King Mini V8 Engine Kits That Runs, Build Your Own Visible Car Motor, Physical Science Experiment Models for Teens, Best STEM Toy Gifts for 14+ and Adult 10171 (487 Pcs)

Modern Engine Blueprinting Techniques: A Practical Guide to Precision Engine Building (Pro)

OWNONE 1

OWNONE 1 V8 Engine Model Kit That Work - 8-Cylinder Visible Engine Building Blocks Set with Motor, LED Light & APP Control - Build Your Own Engineering Kit, STEM Project for Adults & Kids (660 PCS)

Blue Marble

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

Pktiugf

Hot Air Stirling Engine Motor Model,Stirling Engine Kit, Single-Cylinder Metal Stirling Engine External Combustion Engine Motor,DIY Hot Air Engine Gift of Air for Desktop EducationalToy (Gold)

BILT HARD

BILT HARD 7HP Gas Engine Horizontal Shaft, 212cc 4 Stroke OHV Industrial Grade Replacement Gas Motor, Shaft 3/4" (19mm) Diameter, 2-3/8" Long, 3/16" Keyway

Nifeliz

Nifeliz V8 Engine Building Set, Exclusive Advanced Collector's Engine Model, Physical Science Experiment Toy for Adults, Home or Office Décor (2725 PCS, NF10287)

N\P

Qing Shuang Stirling Engine steam Engine Physics Experiment Popular Science Invention Toy Model Motor Model Educational Toy Generator Colorful LED, Silver, LxWxH 6.45×3.3×3.8

NEBEUUO

NEBEUUO 4 Stroke for Honda GX160 Gas Engine 200CC Motor, 6.5HP Gas Engine Single Cylinder OHV Cooling Horizontal Shaft, Pull Start Gas Engine, for Pumping Cleaning Spraying Machines