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Masport ZTM 42

Zero-Turn mower · Model 553421 · Residential-duty · Gas

A$6,299 Masport Australia RRP

Recommended retail price in Australian dollars, read 20 Oct 2026 from the Masport Australia product page. Whether it includes GST is not stated on the page.

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

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

The Masport ZTM 42 is a residential-grade gas zero-turn mower, built for mowing open residential acreage quickly, with a 42-inch deck. It weighs 522.5 lb (237 kg).

At a glance

Power Source
gas
Cutting Width
42.1 in (1070 mm)
Engine Power
17 hp
Transmission
Hydro-Gear EZT (ZT-2200)
Ground Speed
5.6 mph
Weight
522 lbs (237 kg)
Compare this mower: Pick another Masport zero-turn or pick from every zero-turn mower sold in Australia   or quick compare: vs ZTM 50
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
  • Cox 400 Series 442-D 42 in
    Deck 1,067 mm (42 in) · Kawasaki Kawasaki FR600V, 18 hp, 603 cc · RRP A$8,999
    Fuel capacity 32 L (8.5 gal) (this model: 11.4 L (3 gal))Ground speed 7.5 mph (this model: 5.6 mph)
    Why: Same class: zero-turn · 42 in deck, within 6 in of this model's 42.1 in · Gas engine, like this model · Residential-duty, like this model · 18 hp (this model: 17 hp) · By Cox, a different maker
    Compare with the ZTM 42 ›
  • John Deere Z315EZTrak Mower with 42-in. Deck
    Deck 1,067 mm (42 in) · 20 hp, 656 cc
    Ground speed 7 mph (this model: 5.6 mph)Engine power 20 hp (this model: 17 hp)
    Why: Same class: zero-turn · 42 in deck, within 6 in of this model's 42.1 in · Gas engine, like this model · Residential-duty, like this model · 20 hp (this model: 17 hp) · By John Deere, a different maker
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  • Toro 42 in TimeCutter MR 4275 MyRIDE
    Deck 1,067 mm (42 in) · 23 hp
    Engine power 23 hp (this model: 17 hp)Ground speed 7 mph (this model: 5.6 mph)
    Why: Same class: zero-turn · 42 in deck, within 6 in of this model's 42.1 in · Gas engine, like this model · Residential-duty, like this model · 23 hp (this model: 17 hp) · By Toro, a different maker
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  • John Deere Z320MZTrak Mower with 42-in. Deck
    Deck 1,067 mm (42 in) · 21.5 hp, 726 cc
    Engine power 21.5 hp (this model: 17 hp)Ground speed 7 mph (this model: 5.6 mph)
    Why: Same class: zero-turn · 42 in deck, within 6 in of this model's 42.1 in · Gas engine, like this model · Prosumer-duty (this model is residential) · 21.5 hp (this model: 17 hp) · By John Deere, a different maker
    Compare with the ZTM 42 ›
  • Husqvarna Z242F
    Deck 1,067 mm (42 in) · Kawasaki FR Series, 21.5 hp, 725.9 cc · RRP A$9,499
    Engine power 21.5 hp (this model: 17 hp)Ground speed 6.5 mph (this model: 5.6 mph)
    Why: Same class: zero-turn · 42 in deck, within 6 in of this model's 42.1 in · Gas engine, like this model · Prosumer-duty (this model is residential) · 21.5 hp (this model: 17 hp) · By Husqvarna, a different maker
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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

Masport ZTM 42 engine specifications
Power Sourcegas
Engine Power17 hp
Engine MakeMasport
Cylinders2
Engine ModelMVT500 V-Twin

Deck

Masport ZTM 42 deck specifications
Cutting Width42.1 in (1070 mm)
Blades2
Min Cut Height1 in (25 mm)
Max Cut Height4 in (102 mm)
Deck Construction13-gauge Stamped
Cut Positions7
DischargeSide Discharge

Drive

Masport ZTM 42 drive specifications
TransmissionHydro-Gear EZT (ZT-2200)
Ground Speed5.6 mph
Drive Tire Size20" x 10 - 10
Drive SystemV-Belt
Reverse Speed2.5 mph

Dimensions

Masport ZTM 42 dimensions specifications
Weight522 lbs (237 kg)
Fuel Capacity3 gal (11.4 L)

Commercial / Pro

Masport ZTM 42 commercial / pro specifications
Frame ConstructionSteel
Seat TypeSpring-mounted adjustable seat with armrests

Similar models

Other zero-turn mowers with comparable specs — including other brands — that buyers cross-shop with the ZTM 42.

42 in Deck Victa · 42 in (1067 mm)
Z 245i Husqvarna · 42.1 in (1070 mm)
42 in eTimeCutter eMR4275 60V Battery Powered Ride-On Mower Toro · 42 in (1067 mm)
Z370R ElectricZTrak Mower John Deere · 42 in (1067 mm)
Z242E Husqvarna · 42 in (1067 mm)
80V HP 42 in ZT Ride-On Mower Bonus Battery & Cover Kit Ryobi · 41.7 in (1060 mm)

What the parts on this spec sheet mean

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

Mowing time

  • ¼ acre11 min 8 min
  • ½ acre23 min 16 min
  • 1 acre45 min 32 min
  • 2 acres1 h 30 min 1 h 3 min
  • 5 acres3 h 46 min 2 h 38 min

About 45 min per acre at 1.33 acres/hour, mowing at 3.9 mph. The second figure is at the published 5.6 mph top speed (1.9 acres/hour) — faster than anyone really mows. About 4.0 acres per tank.

Weight & hauling

  • Machine weight522 lb
  • + 6×12 trailer900 lb
  • Towed weight1,422 lb
  • single-axle 3,500 lbCarries it, 2,078 lb spare
  • tandem-axle 7,000 lbCarries it, 5,578 lb spare

Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 1,422 lb.

Gate & trailer fit

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

Needs at least 49 in of clearance (estimated).

Power & run time

  • Power per deck inch0.404 hp/in
  • Run time per tank~3.0 h

Mowing times assume 1.33 acres/hour: deck width x 3.9 mph at 80% efficiency, which allows for overlap, turns and trimming. 3.9 mph is 70% of the 5.6 mph top speed Masport publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 5.6 mph, shown so you can see it.

Fit uses the deck width plus 6 in for the discharge chute, because Masport 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 Masport'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: Masport (manufacturer) · archived copy

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