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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 300S Zero Turn Mower — commercial: daily paid use and high acreage; gas powered
  • Spartan Spartan Shield-HD — commercial: daily paid use and high acreage; 42-inch deck; gas powered
What’s different? The 2 differences that matter most, from the published figures.
  1. 300S Zero Turn Mower uses a Kawasaki® FR651V 21.5hp engine; Spartan Shield-HD uses a Kawaski 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.
  2. 300S Zero Turn Mower has a 12-gauge, Fabricated deck; Spartan Shield-HD has a 4" deck.
what isn’t comparable

Not comparable

  • Cutting Width: not published for 300S Zero Turn Mower.
  • Engine Power: not published for 300S Zero Turn Mower.
  • Voltage: not published for Spartan Shield-HD.
  • Weight: not published for 300S Zero Turn Mower.
  • Ground Speed: not published for 300S Zero Turn Mower.
  • Fuel Capacity: not published for 300S Zero Turn Mower.
  • Transmission: not published for Spartan Shield-HD.
  • Fuel Type: not published for Spartan Shield-HD.
  • Start Type: not published for Spartan Shield-HD.
  • Cut height range: not published for 300S 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 · more Spartan
Side-by-side specifications: Ferris 300S Zero Turn Mower vs Spartan Spartan Shield-HD
Spec 300S Zero Turn Mower
Ferris · Zero-Turn
Spartan Shield-HD
Spartan · Zero-Turn
List price $5,279$5,299
Engine
Power Source gas gas
Engine Power — 23 hp
Engine Make Kawasaki® FR651V 21.5hp Kawaski
Fuel Type Gas —
Cylinders 2 —
Start Type Electric —
Electrical
Voltage 651 V —
Deck
Cutting Width — 42 in (1067 mm)
Min Cut Height — 1 in (25 mm)
Max Cut Height — 5 in (127 mm)
Deck Construction 12-gauge, Fabricated 4"
Drive
Transmission Dual Hydro-Gear® ZT-2200® transaxles with 7" cooling fans —
Ground Speed — 8 mph
Drive Tire Size — 20x7-10 Carlisle Turf Armor
Dimensions
Weight — 719 lbs (326.1 kg)
Fuel Capacity — 5 gal (18.9 L)
Length — 81 in (2057 mm)
Width — 43.5 in (1105 mm)
Height — 44 in (1118 mm)
Commercial / Pro
Frame Construction — 1.5" by 3" Powder Coated Frame
Seat Type — Premium
General
Warranty 3 yr 3 yr

Spartan Shield-HD: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — joinspartannation.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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