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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.

  • John Deere S100 Lawn Tractor — residential: typical home lawns; 42-inch deck; gas powered
  • Husqvarna TS 120 42 in — residential: typical home lawns; 42-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
  1. S100 Lawn Tractor runs on Gasoline; TS 120 42 in runs on Petrol. Fuel type sets what you buy and store; it is not a measure of power.
  2. S100 Lawn Tractor has a 17.5 hp engine; TS 120 42 in has a 19 hp engine, a 1.5 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.
  3. S100 Lawn Tractor has a 30.5 ci (500 cc) engine; TS 120 42 in has a 33 ci (540.8 cc) engine, a 2.5 ci difference. Displacement is the engine's size, not its output. A larger engine is not necessarily a more powerful one.
  4. S100 Lawn Tractor has a published top speed of 5.5 mph; TS 120 42 in has a published top speed of 5.2 mph, a 0.3 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
  5. S100 Lawn Tractor holds 2.4 gal (9.1 L) of fuel; TS 120 42 in holds 2.5 gal (9.5 L) of fuel, a 0.1 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.
calculated figures and what isn’t comparable

Calculated by MowerFacts

  • S100 Lawn Tractor works out to 1.9 acres/hour; TS 120 42 in works out to 1.8 acres/hour, a 0.1 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

  • Weight: not published for TS 120 42 in.
  • Warranty: not published for TS 120 42 in.
  • Bagger Capacity: not published for TS 120 42 in.
  • Engine Make: not published for S100 Lawn Tractor.
  • Deck Material: not published for TS 120 42 in.
  • Deck Construction: not published for TS 120 42 in.
  • Drive System: not published for TS 120 42 in.
  • Discharge: not published for TS 120 42 in.
  • Cut height range: not published for TS 120 42 in.
  • Price: S100 Lawn Tractor is dealer quote only.

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 riding (lawn tractor) mower · more John Deere · more Husqvarna
Side-by-side specifications: John Deere S100 Lawn Tractor vs Husqvarna TS 120 42 in
Spec S100 Lawn Tractor
John Deere · Riding (Lawn Tractor)
TS 120 42 in
Husqvarna · Riding (Lawn Tractor)
List price dealer quote$2,499
Engine
Power Source gas gas
Displacement 30.5 ci (500 cc) 33 ci (540.8 cc)
Engine Power 17.5 hp 19 hp
Engine Make — Briggs & Stratton
Cylinders 1 1
Engine Model 31R977 (M31) EXi
Fuel Type Gasoline Petrol
Deck
Cutting Width 42 in (1067 mm) 42 in (1067 mm)
Min Cut Height 1 in (25 mm) —
Max Cut Height 4 in (102 mm) —
Deck Material Steel, 13 gauge0.090 in.2.3 mm —
Deck Construction Stamped steel deck shell —
Deck Gauge 13 —
Anti-Scalp Rollers — Yes
Discharge Side discharge —
Drive
Transmission Hydrostatic, 2-wheel drive Hydrostatic
Ground Speed 5.5 mph 5.2 mph
Drive Tire Size 20x8-8 —
Reverse Speed 3.2 mph 2.2 mph
Drive System Manual power take-off (PTO) —
Dimensions
Weight 414 lbs (187.8 kg) —
Fuel Capacity 2.4 gal (9.1 L) 2.5 gal (9.5 L)
Length 69.7 in (1770 mm) —
Width 55.2 in (1402 mm) —
Height 40 in (1016 mm) 15 in (381 mm)
Commercial / Pro
Frame Construction Full-length welded steel —
Seat Type One-piece Comfort mid back
General
Warranty 2 yr —
Bagger Capacity 6.5 bu (229 L) —

S100 Lawn Tractor: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — deere.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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