Jensen 70 Model Steam EngineThe highest RPM engine we make. Unique, vertical, double acting oscillating cylinder engine with a 2 1 2 x 6 boiler, 3 speed pulley, 400 watt heater. Our most requested engine for the school sciences, physics & fun! Includes pop valve, whistle and throttle. ELECTRIC VERSION THIS IS NOT A TOY! As it involves a flame it is not for use by anyone under the age of 14.

machined brass / nickel for all engines

If terminals touch the firebox walls it will cause a dead short

x 4 3/8 in

70 mm diameter

This Wilesco steam engine is smaller than any of our models

hand crank

screw M 6 x 0

Complete accessory set in a bag for Wilesco D 4

Wilesco D 405 mirror polished and nickel-plated boiler

120 mm for Wilesco D 18

(Boiler Diameter 2 1/8 in

Reversible with Multiple PTO's