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.
- Ferris IS2600 Zero Turn Mower — commercial: daily paid use and high acreage; 61-inch deck
- Grasshopper 400D — commercial: daily paid use and high acreage; 61-inch deck
What’s different? The 3 differences that matter most, from the published figures.
- IS2600 Zero Turn Mower uses a Yanmar™ diesel engine; 400D uses a Kubota 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.
- IS2600 Zero Turn Mower lists at $24,914; 400D lists at $20,460, a $4,454 difference. List price is the maker's own figure before tax, freight and dealer setup. Dealers set the final price.
- IS2600 Zero Turn Mower holds 11 gal (41.6 L) of fuel; 400D holds 12 gal (45.4 L) of fuel, a 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.
what isn’t comparable
Not comparable
- Engine Power: not published for 400D.
- Displacement: not published for 400D.
- Weight: not published for 400D.
- Ground Speed: not published for 400D.
- Warranty: not published for 400D.
- Deck Material: not published for 400D.
- Deck Construction: not published for 400D.
- Start Type: not published for 400D.
- Cut height range: not published for 400D.
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 | IS2600 Zero Turn Mower Ferris · Zero-Turn |
400D Grasshopper · Zero-Turn |
|---|---|---|
| List price | $24,914 | $20,460 |
| Engine | ||
| Power Source | diesel | diesel |
| Displacement | 55.2 ci (904 cc) | — |
| Engine Power | 23 hp | — |
| Engine Make | Yanmar™ diesel | Kubota |
| Fuel Type | Diesel | Diesel |
| Cylinders | 3 | 3 |
| Start Type | Electric | — |
| Deck | ||
| Cutting Width | 61 in (1549 mm) | 61 in (1549 mm) |
| Min Cut Height | 1.7 in (44 mm) | — |
| Max Cut Height | 5 in (127 mm) | — |
| Deck Material | iCD™ Cutting System | — |
| Deck Construction | iCD™ Cutting System | — |
| Drive | ||
| Transmission | Dual commercial Hydro-Gear® ZT-4400™ Transaxles with 8.3" cooling fans | G3 Hydrostatic Transmission |
| Ground Speed | 10 mph | — |
| Reverse Speed | 6 mph | — |
| Dimensions | ||
| Weight | 1606 lbs (728.5 kg) | — |
| Fuel Capacity | 11 gal (41.6 L) | 12 gal (45.4 L) |
| Length | 86.3 in (2191 mm) | — |
| General | ||
| Warranty | 2 yr | — |
Where these models differ, explained
IS2600 Zero Turn Mower: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — ferrismowers.com.
400D: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — grasshoppermower.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.