The ST330 is the largest-engine machine in this group, at 369cc, which gives the most reserve for dense, wet snow. A high-capacity belt system is designed to keep the auger and impeller turning when the load rises, which matters in heavy plow-pile snow.
Its power steering lets you disengage the differential lock and choose which wheel drives, so you can turn a heavy machine at the end of a pass without wrestling it. A robust auger housing is designed for sturdy operation and long product life, and a four-step height-adjustable handle fits different operators.
Compared with the ST230 at 301cc, it has about 22 percent more displacement. Electric start via a power outlet makes cold starts simple. Change oil at the start of each season, use fresh fuel and keep shear pins on hand.
What works
- 369cc engine is the largest in this group
- Power steering and differential lock make turns easier
- High-capacity belt system handles heavy loads
- Handle height adjusts across four positions
Watch out for
- Heavier and costlier than the smaller engines here
- Gas ownership requires oil, fuel and seasonal upkeep
- Takes more storage space than narrower units
Spec sheet
- Clearing width
- 30 in
- Engine
- 369cc
- Starting
- Electric start
- Steering
- Power steering, differential lock disconnect
- Drive
- High-capacity belt system
- Handle
- 4-step height adjustable




