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Spartan Spartan Defender 48" Zero Turn Mower

Zero-Turn mower · Model BRUDEFENDER48 · Prosumer-duty · Gas

A$14,999 Spartan Australia RRP (inc. GST)

Recommended retail price in Australian dollars, read 20 Oct 2026 from the Spartan Australia product page.

Sold in Australia — listed on bushrangerpe.com.au, checked 20 Oct 2026.

Dealers set the final price; delivery, assembly and any local offer are extra and are not tracked here.

The Spartan Defender 48 in Zero Turn Mower is a prosumer-grade gas zero-turn mower, built for large residential properties and acreage, with a 49-inch deck. It weighs 764.8 lb (346.9 kg).

At a glance

Power Source
gas
Cutting Width
49.5 in (1257 mm)
Engine Power
23 hp
Transmission
V-belt drive from engine crankshaft
Ground Speed
8 mph
Weight
765 lbs (346.9 kg)
Compare this mower: Pick another Spartan zero-turn or pick from every zero-turn mower sold in Australia   or quick compare: vs Spartan Defender 54 in Zero Turn Mower · vs Spartan Defender 60 in Zero Turn Mower · vs Spartan Shield 42 in Zero Turn Mower
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
  • Toro 50 in TimeCutter MR 5075 MyRIDE
    Deck 1,270 mm (50 in) · 23 hp, 726 cc
    Ground speed 7 mph (this model: 8 mph)Weight 310 kg (683 lbs) (this model: 346.9 kg (765 lbs))
    Why: Same class: zero-turn · 50 in deck, within 6 in of this model's 49.5 in · Gas engine, like this model · Prosumer-duty, like this model · 23 hp (this model: 23 hp) · By Toro, a different maker
    Compare with the Spartan Defender 48 in Zero Turn Mower ›
  • Masport ZTM 50
    Deck 1,270 mm (50 in) · Masport MVT700 V-Twin, 23 hp · RRP A$7,299
    Fuel capacity 11.4 L (3 gal) (this model: 18.9 L (5 gal))Ground speed 5.6 mph (this model: 8 mph)
    Why: Same class: zero-turn · 50 in deck, within 6 in of this model's 49.5 in · Gas engine, like this model · Prosumer-duty, like this model · 23 hp (this model: 23 hp) · By Masport, a different maker
    Compare with the Spartan Defender 48 in Zero Turn Mower ›
  • Ariens Apex 48 in Zero-Turn Mower
    Deck 1,219 mm (48 in) · Kohler KT730 V-Twin, 23 hp, 725 cc · RRP A$14,199
    Warranty 4 yr (this model: 3 yr)
    Why: Same class: zero-turn · 48 in deck, within 6 in of this model's 49.5 in · Gas engine, like this model · Prosumer-duty, like this model · 23 hp (this model: 23 hp) · By Ariens, a different maker
    Compare with the Spartan Defender 48 in Zero Turn Mower ›
  • Toro 48 in Titan MR 4800 MyRIDE
    Deck 1,219 mm (48 in) · 24 hp, 726 cc
    Ground speed 8.4 mph (this model: 8 mph)
    Why: Same class: zero-turn · 48 in deck, within 6 in of this model's 49.5 in · Gas engine, like this model · Prosumer-duty, like this model · 24 hp (this model: 23 hp) · By Toro, a different maker
    Compare with the Spartan Defender 48 in Zero Turn Mower ›
  • Bad Boy Mowers 2026 ZT Elite
    Deck 1,219 mm (48 in) · 24 hp, 726 cc · RRP A$14,300
    Warranty 2 yr (this model: 3 yr)Fuel capacity 24.6 L (6.5 gal) (this model: 18.9 L (5 gal))
    Why: Same class: zero-turn · 48 in deck, within 6 in of this model's 49.5 in · Gas engine, like this model · Prosumer-duty, like this model · 24 hp (this model: 23 hp) · By Bad Boy Mowers, a different maker
    Compare with the Spartan Defender 48 in Zero Turn Mower ›

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

Spartan Spartan Defender 48 in Zero Turn Mower engine specifications
Power Sourcegas
Engine Power23 hp
Engine MakeAir cooled, 90-degree V-Twin, normally aspirated petrol engine
Fuel TypeUnleaded fuel - maximum of 10% ethanol in fuel (see engine manufacturers specifications)

Deck

Spartan Spartan Defender 48 in Zero Turn Mower deck specifications
Cutting Width49.5 in (1257 mm)
Blades3
Min Cut Height1 in (25 mm)
Max Cut Height5 in (127 mm)
Deck Construction4.5” Deep, Fabricated
Spindle TypeCast aluminium sealed bearings
DischargeHigh density, rubberised

Drive

Spartan Spartan Defender 48 in Zero Turn Mower drive specifications
TransmissionV-belt drive from engine crankshaft
Ground Speed8 mph
Drive Tire Size22" turf armour tyres

Dimensions

Spartan Spartan Defender 48 in Zero Turn Mower dimensions specifications
Weight765 lbs (346.9 kg)
Fuel Capacity5 gal (18.9 L)
Length81 in (2057 mm)
Height49 in (1245 mm)

Commercial / Pro

Spartan Spartan Defender 48 in Zero Turn Mower commercial / pro specifications
Frame ConstructionMainframe 1.5” x 3” (38.1 mm x 76.2 mm) powder coated fusion welded tube frame. Front caster wheels mounted with commercial duty greaseable roller bearings on each wheel
Seat TypePremium
Commercial Warranty3 Year or 300 Hour Domestic Warranty

General

Spartan Spartan Defender 48 in Zero Turn Mower general specifications
Warranty3 yr

Similar models

Other zero-turn mowers with comparable specs — including other brands — that buyers cross-shop with the Spartan Defender 48 in Zero Turn Mower.

Apex 48 in Zero-Turn Mower Ariens · 48 in (1219 mm)
50 in TimeCutter MR 5075 MyRIDE Toro · 50 in (1270 mm)
ZT HD 48 KAWASAKI Gravely · 48 in (1219 mm)
MZ48 Husqvarna · 48 in (1220 mm)
48 in Titan MR 4800 MyRIDE Toro · 48 in (1219 mm)
APEX 52 KAWASAKI Ariens · 52 in (1321 mm)

What the parts on this spec sheet mean

See all Spartan 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 Spartan’s own numbers — not published by the manufacturer.

Mowing time

  • ¼ acre7 min 5 min
  • ½ acre14 min 10 min
  • 1 acre27 min 19 min
  • 2 acres54 min 38 min
  • 5 acres2 h 16 min 1 h 35 min
  • 10 acres4 h 32 min 3 h 11 min

About 27 min per acre at 2.2 acres/hour, mowing at 5.6 mph. The second figure is at the published 8.0 mph top speed (3.15 acres/hour) — faster than anyone really mows. About 11.0 acres per tank.

Weight & hauling

  • Machine weight765 lb
  • + 6×12 trailer900 lb
  • Towed weight1,665 lb
  • single-axle 3,500 lbCarries it, 1,835 lb spare
  • tandem-axle 7,000 lbCarries it, 5,335 lb spare

Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 1,665 lb.

Gate & trailer fit

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

Needs at least 56 in of clearance (estimated).

Power & run time

  • Power per deck inch0.465 hp/in
  • Run time per tank~5.0 h

Mowing times assume 2.2 acres/hour: deck width x 5.6 mph at 80% efficiency, which allows for overlap, turns and trimming. 5.6 mph is 70% of the 8.0 mph top speed Spartan publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 8.0 mph, shown so you can see it.

Fit uses the deck width plus 6 in for the discharge chute, because Spartan doesn't publish an overall width — measure before buying if a gate is tight.

Towed weight adds a 900 lb allowance for a 6x12 open utility trailer to Spartan'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: Spartan (manufacturer) · archived copy

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