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John Deere S100 Lawn Tractor

Riding (Lawn Tractor) mower · Model S100 · Residential-duty · Gas

John Deere Australia doesn’t publish a recommended retail price for this model online — it’s dealer quote only. The John Deere Australia product page is the place to start.

Sold in Australia — listed on deere.com.au, checked 20 Oct 2026. Listed there as S100 (S100). Also sold in the United States: US specs and list price.

The John Deere S100 Lawn Tractor is a residential-grade gas lawn tractor, built for larger home yards, with a 42-inch deck and a 500cc engine making 17.5 hp. It weighs 414 lb (187.8 kg).

At a glance

Power Source
gas
Cutting Width
42 in (1067 mm)
Displacement
30.5 ci (500 cc)
Engine Power
17.5 hp
Transmission
Hydrostatic, 2-wheel drive
Weight
414 lbs (187.8 kg)
Compare this mower: Pick another John Deere riding (lawn tractor) or pick from every riding (lawn tractor) mower sold in Australia   or quick compare: vs S120 Lawn Tractor · vs S130 Lawn Tractor · vs S140 Lawn Tractor
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
  • Masport TTM108SH V-Twin
    Deck 1,080 mm (42.5 in) · Masport MVT500 V-Twin, 19 hp · RRP A$4,899
    Fuel capacity 7.5 L (2 gal) (this model: 9.1 L (2.4 gal))Max cut height 90 mm (3.5 in) (this model: 102 mm (4 in))
    Why: Same class: riding (lawn tractor) · 42.5 in deck, within 6 in of this model's 42 in · Gas engine, like this model · Residential-duty, like this model · 19 hp (this model: 17.5 hp) · By Masport, a different maker
    Compare with the S100 Lawn Tractor ›
  • Victa VSX 42 in, Small Frame Garden Tractor
    Deck 1,067 mm (42 in) · Briggs & Stratton EX Series OHV, 17.5 hp, 500 cc · RRP A$4,799
    Fuel capacity 7.5 L (2 gal) (this model: 9.1 L (2.4 gal))Weight 208 kg (459 lbs) (this model: 187.8 kg (414 lbs))
    Why: Same class: riding (lawn tractor) · Same 42 in deck · Gas engine, like this model · Prosumer-duty (this model is residential) · 17.5 hp (this model: 17.5 hp) · By Victa, a different maker
    Compare with the S100 Lawn Tractor ›
  • Cox Stockman PLUS 40 in
    Deck 1,016 mm (40 in) · 18 hp, 586 cc · RRP A$6,199
    Max cut height 75 mm (3 in) (this model: 102 mm (4 in))Displacement 586 cc (35.8 ci) (this model: 500 cc (30.5 ci))
    Why: Same class: riding (lawn tractor) · 40 in deck, within 6 in of this model's 42 in · Gas engine, like this model · Residential-duty, like this model · 18 hp (this model: 17.5 hp) · By Cox, a different maker
    Compare with the S100 Lawn Tractor ›
  • Kubota T2090BR-42
    Deck 1,067 mm (42 in) · Briggs & Stratton GH660V, 20 hp, 656 cc
    Fuel capacity 13.6 L (3.6 gal) (this model: 9.1 L (2.4 gal))Weight 270 kg (595 lbs) (this model: 187.8 kg (414 lbs))
    Why: Same class: riding (lawn tractor) · Same 42 in deck · Gas engine, like this model · Residential-duty, like this model · 20 hp (this model: 17.5 hp) · By Kubota, a different maker
    Compare with the S100 Lawn Tractor ›
  • Masport TTM102RH V-Twin
    Deck 1,020 mm (40.2 in) · Masport MVT500 V-Twin, 19 hp · RRP A$5,999
    Fuel capacity 7.5 L (2 gal) (this model: 9.1 L (2.4 gal))Max cut height 90 mm (3.5 in) (this model: 102 mm (4 in))
    Why: Same class: riding (lawn tractor) · 40.2 in deck, within 6 in of this model's 42 in · Gas engine, like this model · Residential-duty, like this model · 19 hp (this model: 17.5 hp) · By Masport, a different maker
    Compare with the S100 Lawn Tractor ›

Chosen by stated rules, not opinion: same class, a deck within 6 in of this one, the same kind of power and a compatible duty class, then the closest power, weight and price, with other makers preferred. Figures are the manufacturers’ published ones; nothing is estimated.

Engine

John Deere S100 Lawn Tractor engine specifications
Power Sourcegas
Displacement30.5 ci (500 cc)
Engine Power17.5 hp
Cylinders1
Engine Model31R977 (M31)
Fuel TypeGasoline

Deck

John Deere S100 Lawn Tractor deck specifications
Cutting Width42 in (1067 mm)
Min Cut Height1 in (25 mm)
Max Cut Height4 in (102 mm)
Deck MaterialSteel, 13 gauge0.090 in.2.3 mm
Deck ConstructionStamped steel deck shell
Deck Gauge13
DischargeSide discharge

Drive

John Deere S100 Lawn Tractor drive specifications
TransmissionHydrostatic, 2-wheel drive
Ground Speed5.5 mph
Drive Tire Size20x8-8
Drive SystemManual power take-off (PTO)
Reverse Speed3.2 mph

Dimensions

John Deere S100 Lawn Tractor dimensions specifications
Weight414 lbs (187.8 kg)
Fuel Capacity2.4 gal (9.1 L)
Length69.7 in (1770 mm)
Width55.2 in (1402 mm)
Height40 in (1016 mm)

Commercial / Pro

John Deere S100 Lawn Tractor commercial / pro specifications
Frame ConstructionFull-length welded steel
Seat TypeOne-piece

General

John Deere S100 Lawn Tractor general specifications
Bagger Capacity6.5 bu (229 L)
Warranty2 yr

Similar models

Other riding (lawn tractor) mowers with comparable specs — including other brands — that buyers cross-shop with the S100 Lawn Tractor.

POWER+ 107cm (42 in) T6 Lawn Tractor Kit (5 x 6.0 Ah) EGO · 42.1 in (1070 mm)
POWER+ 107cm (42 in) T6 Lawn Tractor Kit (4 x 10 Ah) EGO · 42.1 in (1070 mm)
VSX 42 in, Small Frame Garden Tractor Victa · 42 in (1067 mm)
Stockman PLUS 40 in Cox · 40 in (1016 mm)
TTM108SH V-Twin Masport · 42.5 in (1080 mm)
TTM102RH V-Twin Masport · 40.2 in (1020 mm)

Specs verified against the manufacturer spec sheet on Jun 6, 2026 — deere.com.

What the parts on this spec sheet mean

See all John Deere mowers and specs ›

Spot a wrong spec? Suggest a correction.

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

What the specs work out to

Figures MowerFacts computes from John Deere’s own numbers — not published by the manufacturer.

Mowing time

  • ¼ acre11 min 8 min
  • ½ acre23 min 16 min
  • 1 acre46 min 32 min
  • 2 acres1 h 32 min 1 h 4 min
  • 5 acres3 h 50 min 2 h 41 min

About 46 min per acre at 1.31 acres/hour, mowing at 3.8 mph. The second figure is at the published 5.5 mph top speed (1.87 acres/hour) — faster than anyone really mows. About 3.1 acres per tank.

Weight & hauling

  • Machine weight414 lb
  • + 6×12 trailer900 lb
  • Towed weight1,314 lb
  • single-axle 3,500 lbCarries it, 2,186 lb spare
  • tandem-axle 7,000 lbCarries it, 5,686 lb spare

Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 1,314 lb.

Gate & trailer fit

  • 32 in gateToo wide
  • 36 in gateToo wide
  • 48 in gateToo wide

Needs at least 56 in of clearance.

Power & run time

  • Power per deck inch0.417 hp/in
  • Run time per tank~2.4 h

Mowing times assume 1.31 acres/hour: deck width x 3.8 mph at 80% efficiency, which allows for overlap, turns and trimming. 3.8 mph is 70% of the 5.5 mph top speed John Deere publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 5.5 mph, shown so you can see it.

Fit uses John Deere's published overall width.

Towed weight adds a 900 lb allowance for a 6x12 open utility trailer to John Deere's published machine weight. Your trailer's own weight is on its VIN plate. Tongue weight, axle placement and your vehicle's tow rating are still yours to check — this is the load, not a loading plan.

Run time assumes a typical 1 gal/hour burn at working load; real consumption varies with engine, load and cut.

Source: John Deere (manufacturer) · archived copy

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