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.
- Cub Cadet PRO X 660 — commercial: daily paid use and high acreage; 60-inch deck; gas powered
- Cub Cadet PRO X 434 — commercial: daily paid use and high acreage; 34-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- PRO X 660 has a 60 in (1,524 mm) deck; PRO X 434 has a 34 in (864 mm) deck, a 26 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 ›
- PRO X 660 lists at $11,799; PRO X 434 lists at $7,299, a $4,500 difference. List price is the maker's own figure before tax, freight and dealer setup. Dealers set the final price.
- PRO X 660 uses a Kawasaki® engine; PRO X 434 uses a Kohler® 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.
- PRO X 660 has a published top speed of 10 mph; PRO X 434 has a published top speed of 7 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 X 660 holds 7.5 gal (28.4 L) of fuel; PRO X 434 holds 5.4 gal (20.4 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.
2 more differences, calculated figures and what isn’t comparable
Other verified differences
- PRO X 660 has a 52 ci (852 cc) engine; PRO X 434 has a 45.6 ci (747 cc) engine, a 6.4 ci difference.
- PRO X 660 has a 25.5 hp engine; PRO X 434 has a 24 hp engine, a 1.5 hp difference.
Calculated by MowerFacts
- PRO X 660 works out to 4.8 acres/hour; PRO X 434 works out to 1.9 acres/hour, a 2.9 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
- Blades: not published for PRO X 434.
- Deck Material: not published for PRO X 434.
- Cut height range: not published for PRO X 660.
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 X 660 Cub Cadet · Commercial |
PRO X 434 Cub Cadet · Commercial |
|---|---|---|
| List price | $11,799 | $7,299 |
| Engine | ||
| Power Source | gas | gas |
| Engine Make | Kawasaki® | Kohler® |
| Displacement | 52 ci (852 cc) | 45.6 ci (747 cc) |
| Engine Power | 25.5 hp | 24 hp |
| Cylinders | 2 | 2 |
| Start Type | Ignition Key | Ignition Key |
| Engine Model | FX Series | 7000 Series PRO |
| Deck | ||
| Cutting Width | 60 in (1524 mm) | 34 in (864 mm) |
| Blades | 3 | — |
| Deck Material | 10-gauge steel | — |
| Deck Construction | 10 ga shell w/ 7 ga top & bottom reinforcement | 10 ga shell w/ 7 ga top & bottom reinforcement |
| Deck Gauge | 10 | — |
| Min Cut Height | — | 1.5 in (38 mm) |
| Max Cut Height | — | 4.5 in (114 mm) |
| Drive | ||
| Transmission | 12cc Hydro-Gear® pumps / 240cc Parker® wheel motors | Hydro Gear 3100 |
| Ground Speed | 10 mph | 7 mph |
| Reverse Speed | 5 mph | 3.5 mph |
| Dimensions | ||
| Fuel Capacity | 7.5 gal (28.4 L) | 5.4 gal (20.4 L) |
Where these models differ, explained
PRO X 660: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — cubcadet.com.
PRO X 434: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — cubcadet.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.