Walker Walker Model S18
Commercial mower · Model S18 · Commercial-duty · Gas
The Walker Model S18 is a commercial-grade gas commercial mower, built for daily commercial mowing, with a 56-inch deck and a 570cc engine making 18 hp. It weighs 674.6 lb (306 kg).
At a glance
Engine
| Power Source | gas |
|---|---|
| Engine Make | Briggs & Stratton Vanguard |
| Displacement | 34.8 ci (570 cc) |
| Engine Power | 18 hp |
| Fuel Type | Regular grade unleaded gasoline (87 octane minimum, 10% ethanol maximum) |
Deck
| Cutting Width | 56 in (1422 mm) |
|---|---|
| Max Cut Height | 4 in (102 mm) |
| Min Cut Height | 1 in (25 mm) |
Drive
| Transmission | Dual, Independent Hydro-Gear® ZT3100 Integrated Transaxles |
|---|
Dimensions
| Weight | 675 lbs (306 kg) |
|---|---|
| Fuel Capacity | 4 gal (15.1 L) |
Professional use
How the Walker Model S18 fits commercial and high-acreage work, from the specs we have. Duty class: Commercial.
Acres/hour can't be computed for this model — deck width or ground speed is not specified by manufacturer.
| Deck width | 56 in |
|---|---|
| Engine make | Briggs & Stratton Vanguard |
| Engine displacement | 570 cc |
| Engine power | 18 hp |
| Transmission | Dual, Independent Hydro-Gear® ZT3100 Integrated Transaxles |
| Drive type | not specified by manufacturer |
| Ground speed | not specified by manufacturer |
| Cut-height range | 25 mm – 102 mm |
| Fuel capacity | 15.1 L |
| Weight | 306 kg |
| Warranty | not specified by manufacturer |
| Commercial warranty | not specified by manufacturer |
| Deck construction | not specified by manufacturer |
| Deck gauge | not specified by manufacturer |
| Spindle type | not specified by manufacturer |
| Frame construction | not specified by manufacturer |
| Anti-scalp rollers | not specified by manufacturer |
| Drive tire size | not specified by manufacturer |
| Seat type | not specified by manufacturer |
| Dealer network | not specified by manufacturer |
See the Walker commercial pro hub › · Professional buying hub ›
Similar models
Other commercial mowers with comparable specs — including other brands — that buyers cross-shop with the Walker Model S18.
Specs verified against the manufacturer spec sheet on Jun 6, 2026 — walker.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
Source: Walker (manufacturer) · archived copy