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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
  • Ferris 300R Zero Turn Mower — commercial: daily paid use and high acreage; 42-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
  1. IS2600 Zero Turn Mower lists at $24,914; 300R Zero Turn Mower lists at $4,949, a $19,965 difference. List price is the maker's own figure before tax, freight and dealer setup. Dealers set the final price.
  2. IS2600 Zero Turn Mower weighs 1,606 lbs (728.5 kg); 300R Zero Turn Mower weighs 544 lbs (246.8 kg), a 1,062 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What IS2600 Zero Turn Mower's weight means for a trailer ›
  3. IS2600 Zero Turn Mower holds 11 gal (41.6 L) of fuel; 300R Zero Turn Mower holds 3 gal (11.4 L) of fuel, a 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.
  4. IS2600 Zero Turn Mower uses a Yanmar™ diesel engine; 300R Zero Turn Mower uses a Briggs & Stratton® PXi SeriesTM 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.
  5. IS2600 Zero Turn Mower has a 61 in (1,549 mm) deck; 300R Zero Turn Mower has a 42 in (1,067 mm) deck, a 19 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 ›
6 more differences, calculated figures and what isn’t comparable

Other verified differences

  • IS2600 Zero Turn Mower runs on Diesel; 300R Zero Turn Mower runs on Gas.
  • IS2600 Zero Turn Mower has a iCD™ Cutting System deck; 300R Zero Turn Mower has a 12-gauge, Fabricated deck.
  • IS2600 Zero Turn Mower carries a 2-year warranty; 300R Zero Turn Mower carries a 3-year warranty, a 1 year difference.
  • IS2600 Zero Turn Mower has a published top speed of 10 mph; 300R Zero Turn Mower has a published top speed of 8 mph, a 2 mph difference.
  • IS2600 Zero Turn Mower has a 55.2 ci (904 cc) engine; 300R Zero Turn Mower has a 44.2 ci (724 cc) engine, a 11 ci difference.
  • IS2600 Zero Turn Mower cuts from 1.7 in (44 mm) to 5 in (127 mm); 300R Zero Turn Mower cuts from 1.5 in (38 mm) to 4.5 in (114 mm).

Calculated by MowerFacts

  • IS2600 Zero Turn Mower works out to 4.9 acres/hour; 300R Zero Turn Mower works out to 2.7 acres/hour, a 2.2 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

  • Deck Material: not published for 300R Zero Turn Mower.

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.

Add another (2 more fit): every zero-turn mower · more Ferris
Side-by-side specifications: Ferris IS2600 Zero Turn Mower vs Ferris 300R Zero Turn Mower
Spec IS2600 Zero Turn Mower
Ferris · Zero-Turn
300R Zero Turn Mower
Ferris · Zero-Turn
List price $24,914$4,949
Engine
Power Source diesel gas
Displacement 55.2 ci (904 cc) 44.2 ci (724 cc)
Engine Power 23 hp 23 hp
Engine Make Yanmar™ diesel Briggs & Stratton® PXi SeriesTM
Fuel Type Diesel Gas
Cylinders 3 2
Start Type Electric Electric
Deck
Cutting Width 61 in (1549 mm) 42 in (1067 mm)
Min Cut Height 1.7 in (44 mm) 1.5 in (38 mm)
Max Cut Height 5 in (127 mm) 4.5 in (114 mm)
Deck Material iCD™ Cutting System —
Deck Construction iCD™ Cutting System 12-gauge, Fabricated
Deck Gauge — 12
Drive
Transmission Dual commercial Hydro-Gear® ZT-4400™ Transaxles with 8.3" cooling fans Hydro-Gear® ZT-2800
Ground Speed 10 mph 8 mph
Reverse Speed 6 mph —
Dimensions
Weight 1606 lbs (728.5 kg) 544 lbs (246.8 kg)
Fuel Capacity 11 gal (41.6 L) 3 gal (11.4 L)
Length 86.3 in (2191 mm) 73.5 in (1867 mm)
Width — 55 in (1397 mm)
General
Warranty 2 yr 3 yr

IS2600 Zero Turn Mower: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — ferrismowers.com.

300R Zero Turn Mower: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — ferrismowers.com.

Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.

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