Sulzer ZG9
# Sulzer ZG9

Sulzer ZG9 was a pre-World War II opposed-piston two-stroke diesel engine by Sulzer. The engine was available with a choice of two, three and four cylinders (2ZG9, 3ZG9, 4ZG9); the two-cylinder version developed 120 bhp. It used a piston scavenge pump. This was mounted vertically above one rocker, driven by a bellcrank from the main rockers. This engine is sometimes cited as an inspiration for the Commer TS3 design.

## Specification

Data from

### General characteristics

* Type: Two cylinders, four opposed pistons.
* Bore: 90 mm
* Stroke: 120 mm

### Performance

* Power output: 50 PSe / 36,77 kW at 1,500 rpm
