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.
- Grasshopper 735BT — commercial: daily paid use and high acreage; 52-inch deck; gas powered
- Gravely HD PRO 52 KAWASAKI FT — commercial: daily paid use and high acreage; 52-inch deck; gas powered
What’s different? The 4 differences that matter most, from the published figures.
- 735BT lists at $18,550; HD PRO 52 KAWASAKI FT lists at $8,899, a $9,651 difference. List price is the maker's own figure before tax, freight and dealer setup. Dealers set the final price.
- 735BT uses a Vanguard engine; HD PRO 52 KAWASAKI FT 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.
- 735BT holds 7.2 gal (27.3 L) of fuel; HD PRO 52 KAWASAKI FT holds 5.1 gal (19.3 L) of fuel, a 2.1 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.
- 735BT has a published top speed of 10 mph; HD PRO 52 KAWASAKI FT has a published top speed of 8 mph, a 2 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
calculated figures and what isn’t comparable
Calculated by MowerFacts
- 735BT works out to 4.2 acres/hour; HD PRO 52 KAWASAKI FT works out to 3.4 acres/hour, a 0.8 acres/hour difference. Calculated by MowerFacts from deck width and the published top speed at 80% efficiency; it is not a manufacturer figure, and real mowing is slower.
Not comparable
- Engine Power: not published for 735BT.
- Displacement: not published for HD PRO 52 KAWASAKI FT.
- Transmission: not published for HD PRO 52 KAWASAKI FT.
- Fuel Type: not published for HD PRO 52 KAWASAKI FT.
- Deck Material: not published for 735BT.
- Deck Construction: not published for 735BT.
- Drive System: not published for 735BT.
- Discharge: not published for 735BT.
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 | 735BT Grasshopper · Zero-Turn |
HD PRO 52 KAWASAKI FT Gravely · Zero-Turn |
|---|---|---|
| List price | $18,550 | $8,899 |
| Engine | ||
| Power Source | gas | gas |
| Displacement | 60.6 ci (993 cc) | — |
| Engine Power | — | 22 hp |
| Engine Make | Vanguard | Kawasaki® |
| Fuel Type | Gasoline | — |
| Cylinders | 2 | — |
| Deck | ||
| Cutting Width | 52 in (1321 mm) | 52 in (1321 mm) |
| Deck Material | — | 7 ga |
| Deck Construction | — | Fabricated X-Factor® 3 |
| Deck Gauge | — | 7 |
| Discharge | — | Side |
| Drive | ||
| Transmission | T6 Drive Transmission | — |
| Ground Speed | 10 mph | 8 mph |
| Drive System | — | Hydro-Gear® ZT-3200 Transaxles |
| Reverse Speed | — | 4 mph |
| Dimensions | ||
| Weight | 930 lbs (421.8 kg) | 917 lbs (415.9 kg) |
| Fuel Capacity | 7.2 gal (27.3 L) | 5.1 gal (19.3 L) |
Where these models differ, explained
735BT: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — jfhl539zzuegfiyw.public.blob.vercel-storage.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.