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.
- Gravely PRO-TURN 552 KAWASAKI FX921 — commercial: daily paid use and high acreage; 52-inch deck; gas powered
- Scag Turf Tiger II — commercial: daily paid use and high acreage; 52-inch deck
What’s different? The 5 differences that matter most, from the published figures.
- PRO-TURN 552 KAWASAKI FX921 has Parker® HTJ drive; Turf Tiger II has Dual Pump and Motor drive.
- PRO-TURN 552 KAWASAKI FX921 has a 61 ci (999 cc) engine; Turf Tiger II has a 45.6 ci (747 cc) engine, a 15.4 ci difference. Displacement is the engine's size, not its output. A larger engine is not necessarily a more powerful one.
- PRO-TURN 552 KAWASAKI FX921 has a published top speed of 15 mph; Turf Tiger II has a published top speed of 12 mph, a 3 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
- PRO-TURN 552 KAWASAKI FX921 has a 31 hp engine; Turf Tiger II has a 26 hp engine, a 5 hp difference. Published horsepower is the maker's rating at a stated engine speed. It is a different measure from displacement, and two engines of equal rating can pull differently.
- PRO-TURN 552 KAWASAKI FX921 lists at $14,999; Turf Tiger II lists at $16,999 to $25,399, a $2,000 difference. List price is the maker's own figure before tax, freight and dealer setup. Dealers set the final price.
3 more differences, calculated figures and what isn’t comparable
Other verified differences
- PRO-TURN 552 KAWASAKI FX921 holds 12.5 gal (47.3 L) of fuel; Turf Tiger II holds 12 gal (45.4 L) of fuel, a 0.5 gal difference.
- PRO-TURN 552 KAWASAKI FX921 weighs 1,447 lbs (656.4 kg); Turf Tiger II weighs 1,418 lbs (643.2 kg), a 29 lbs difference.
- PRO-TURN 552 KAWASAKI FX921 cuts from 1 in (25 mm) to 5.5 in (140 mm); Turf Tiger II cuts from 1.5 in (38 mm) to 6 in (152 mm).
Calculated by MowerFacts
- PRO-TURN 552 KAWASAKI FX921 works out to 6.3 acres/hour; Turf Tiger II works out to 5.0 acres/hour, a 1.3 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
- Voltage: not published for Turf Tiger II.
- Fuel Type: not published for Turf Tiger II.
- Deck Material: not published for Turf Tiger II.
- Deck Construction: not published for PRO-TURN 552 KAWASAKI FX921.
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 | PRO-TURN 552 KAWASAKI FX921 Gravely · Zero-Turn |
Turf Tiger II Scag · Zero-Turn |
|---|---|---|
| List price | $14,999 | $16,999–$25,399 |
| Engine | ||
| Power Source | gas | diesel |
| Displacement | 61 ci (999 cc) | 45.6 ci (747 cc) |
| Engine Power | 31 hp | 26 hp |
| Engine Make | Kawasaki® | Kohler®Command PRO®EFI– electronic fuel injection |
| Engine Model | FX921V | — |
| Fuel Type | gas | — |
| Electrical | ||
| Voltage | 12 V | — |
| Deck | ||
| Cutting Width | 52 in (1321 mm) | 52 in (1321 mm) |
| Min Cut Height | 1 in (25 mm) | 1.5 in (38 mm) |
| Max Cut Height | 5.5 in (140 mm) | 6 in (152 mm) |
| Deck Material | Fabricated | — |
| Deck Construction | — | Tri-plate cutter deck constructed of 3 steel plates totaling nearly 1/2″ of steel. Reinforcement plates at cutter deck spindles. |
| Deck Gauge | 7 | — |
| Drive | ||
| Ground Speed | 15 mph | 12 mph |
| Drive Tire Size | — | 26″ x 12″-12″ (61″ and 72″)26″ x 9.5″-12″ (52″) |
| Reverse Speed | 6 mph | 6 mph |
| Drive System | Parker® HTJ | Dual Pump and Motor |
| Dimensions | ||
| Weight | 1447 lbs (656.4 kg) | 1418 lbs (643.2 kg) |
| Fuel Capacity | 12.5 gal (47.3 L) | 12 gal (45.4 L) |
| Commercial / Pro | ||
| Seat Type | — | 4-point iso-mounted torsion-spring suspension seat |
Where these models differ, explained
PRO-TURN 552 KAWASAKI FX921: Specs verified against the retailer listing on Jun 6, 2026 — bobcatofatlanta.com.
Turf Tiger II: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — scag.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.