Compare Mowers
List prices are the manufacturer’s published figures, re-checked daily; they exclude tax, freight and dealer setup.
A side-by-side reference of each model's stated specifications. MowerFacts doesn’t give opinions: where a published, spec-derived rule can separate machines we mark a Data Pick and show the rule; here, read the values and decide what fits your needs.
Best suited for
What each model is built for, from its duty class and key specs. This is a neutral reference — MowerFacts does not rank one model above another.
- Walker Walker Model S18 — commercial: daily paid use and high acreage; 56-inch deck; gas powered
- Gravely PRO-WALK 52 KAWASAKI — commercial: daily paid use and high acreage; 52-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- Walker Model S18 uses a Briggs & Stratton Vanguard engine; PRO-WALK 52 KAWASAKI uses a Kawasaki® engine. The engine maker builds the engine; the mower maker chooses the model, rating and fit, so the badge alone does not settle output or longevity.
- Walker Model S18 holds 4 gal (15.1 L) of fuel; PRO-WALK 52 KAWASAKI holds 5.8 gal (22 L) of fuel, a 1.8 gal difference. Tank size bounds how long a machine runs between stops. Consumption varies with engine, load and speed, so hours per tank are not fixed.
- Walker Model S18 weighs 675 lbs (306 kg); PRO-WALK 52 KAWASAKI weighs 770 lbs (349.3 kg), a 95 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What Walker Model S18's weight means for a trailer ›
- Walker Model S18 has a 56 in (1,422 mm) deck; PRO-WALK 52 KAWASAKI has a 52 in (1,321 mm) deck, a 4 in difference. Deck width sets how much grass each pass covers. Mowing time also depends on ground speed, turns and obstacles, so a wider deck alone does not fix the job's length. Time both decks on your own lawn ›
- Walker Model S18 has a 34.8 ci (570 cc) engine; PRO-WALK 52 KAWASAKI has a 36.8 ci (603 cc) engine, a 2 ci difference. Displacement is the engine's size, not its output. A larger engine is not necessarily a more powerful one.
1 more difference, what isn’t comparable
Other verified differences
- Walker Model S18 has a 18 hp engine; PRO-WALK 52 KAWASAKI has a 18.5 hp engine, a 0.5 hp difference.
Not comparable
- Ground Speed: not published for Walker Model S18.
- Transmission: not published for PRO-WALK 52 KAWASAKI.
- Deck Material: not published for Walker Model S18.
- Deck Construction: not published for Walker Model S18.
- Drive System: not published for Walker Model S18.
- Discharge: not published for Walker Model S18.
- Cut height range: not published for PRO-WALK 52 KAWASAKI.
- Price: Walker Model S18 is dealer quote only.
Verified means each manufacturer publishes the figure. A bigger number is only a bigger number; nothing here says which machine is better. The full specification table is below.
Which is faster on your property? › Measure your lawn once and MowerFacts times all 2 against it.
| Spec | Walker Model S18 Walker · Commercial |
PRO-WALK 52 KAWASAKI Gravely · Commercial |
|---|---|---|
| List price | dealer quote | $8,499 |
| Engine | ||
| Power Source | gas | gas |
| Engine Make | Briggs & Stratton Vanguard | Kawasaki® |
| Displacement | 34.8 ci (570 cc) | 36.8 ci (603 cc) |
| Engine Power | 18 hp | 18.5 hp |
| Engine Model | — | FS600V |
| Fuel Type | Regular grade unleaded gasoline (87 octane minimum, 10% ethanol maximum) | Gas |
| Deck | ||
| Cutting Width | 56 in (1422 mm) | 52 in (1321 mm) |
| Deck Material | — | 10 ga |
| Deck Construction | — | Fabricated X-Factor® 3 |
| Deck Gauge | — | 10 |
| Min Cut Height | 1 in (25 mm) | — |
| Discharge | — | Side |
| Max Cut Height | 4 in (102 mm) | — |
| Drive | ||
| Transmission | Dual, Independent Hydro-Gear® ZT3100 Integrated Transaxles | — |
| Ground Speed | — | 8 mph |
| Reverse Speed | — | 3 mph |
| Drive System | — | Hydro-Gear® ZT-2800® Transaxles |
| Dimensions | ||
| Weight | 675 lbs (306 kg) | 770 lbs (349.3 kg) |
| Fuel Capacity | 4 gal (15.1 L) | 5.8 gal (22 L) |
Where these models differ, explained
Walker Model S18: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — walker.com.
PRO-WALK 52 KAWASAKI: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — gravely.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.