Build a motor-driven inline four-cylinder display engine from 357 precision metal parts. The exposed piston, crankshaft and timing mechanisms create a hands-on introduction to multi-cylinder engine motion without fuel or combustion.
Key features
357 aluminum-alloy and stainless-steel parts
Anodized full-metal construction
Electric motor drive with rechargeable battery
Approximate assembly time: 4 hours
4.5-star assembly difficulty
Recommended age: 10+
Specifications
Battery: 700mAh rechargeable lithium battery
Charging input: 10–20V DC
Charging time: approximately 140 minutes
Operating time: more than 30 minutes per full charge
Model size: 182 × 150 × 120 mm
Weight: approximately 4 kg
What’s included
357-piece four-cylinder engine kit
Charger
English user manual
Metal presentation box
Important: This is an electrically driven educational model; it is not a fuel-burning engine.
