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Gravely ZT X 42 KAWASAKI

Zero-Turn mower · Model 918008 · Commercial-duty · Gas

$4,299 Gravely list price

Checked 23 Oct 2026 on the Gravely product page. Tracking since 17 Sep 2026; no change recorded yet.

Manufacturer list price only — it excludes tax, freight, dealer setup and any local discount, and dealers set the final price.

The Gravely ZT X 42 KAWASAKI is a commercial-grade gas zero-turn mower, built for daily commercial mowing, with a 42-inch deck and a 726cc engine making 21.5 hp. It weighs 667 lb (302.6 kg).

At a glance

Power Source
gas
Cutting Width
42 in (1067 mm)
Displacement
44.3 ci (726 cc)
Engine Power
21.5 hp
Ground Speed
7 mph
Weight
667 lbs (302.6 kg)
Compare this mower: Pick another Gravely zero-turn or pick from every zero-turn mower   or quick compare: vs COMPACT-PRO 34 KAWASAKI · vs HD PRO 48 KAWASAKI FT · vs HD PRO 52 KAWASAKI FT
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  • Spartan Spartan Shield
    Deck 42 in (1067 mm) · Spartan, 22 hp
    Fuel capacity 5 gal (18.9 L) (this model: 3.5 gal (13.2 L))List price $4,299 (this model: $4,299)
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  • Kubota Z232KW-42
    Deck 42 in (1067 mm) · Kawasaki FR651V, 21.5 hp, 726 cc
    Ground speed 6.5 mph (this model: 7 mph)
    Why: Same class: zero-turn · Same 42 in deck · Gas engine, like this model · Commercial-duty, like this model · 21.5 hp (this model: 21.5 hp) · By Kubota, a different maker
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  • Ferris 300R Zero Turn Mower (42 in / 5902205)
    Deck 42 in (1067 mm) · Kawasaki®, 21.5 hp, 726 cc
    List price $5,169 (this model: $4,299)Weight 556 lbs (252.2 kg) (this model: 667 lbs (302.6 kg))
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  • Ariens IKON 42 KAWASAKI
    Deck 42 in (1067 mm) · Kawasaki® FR651V, 21.5 hp, 726 cc
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  • Bad Boy Mowers MZ Rambler
    Deck 42 in (1067 mm) · Briggs, 19 hp, 540 cc
    Fuel capacity 5 gal (18.9 L) (this model: 3.5 gal (13.2 L))Displacement 33 ci (540 cc) (this model: 44.3 ci (726 cc))
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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

Gravely ZT X 42 KAWASAKI engine specifications
Power Sourcegas
Displacement44.3 ci (726 cc)
Engine Power21.5 hp
Engine MakeKawasaki®
Engine ModelFR651V
Fuel TypeGas

Deck

Gravely ZT X 42 KAWASAKI deck specifications
Cutting Width42 in (1067 mm)
Deck Material11 ga
Deck ConstructionFabricated X-Factor®
Deck Gauge11
DischargeSide

Drive

Gravely ZT X 42 KAWASAKI drive specifications
Ground Speed7 mph
Drive SystemHydro-Gear® Serviceable EZT® Transaxles
Reverse Speed3 mph

Dimensions

Gravely ZT X 42 KAWASAKI dimensions specifications
Weight667 lbs (302.6 kg)
Fuel Capacity3.5 gal (13.2 L)

Professional use

How the ZT X 42 KAWASAKI fits commercial and high-acreage work, from the specs we have. Duty class: Commercial.

Acres/hr (80%)
1.66
Acres/hr (100%)
2.97
Deck width
42 in
Ground speed
7 mph

Productivity computed from deck width and ground speed. Compare on the calculator ›

Gravely ZT X 42 KAWASAKI professional and productivity specifications
Deck width42 in
Engine makeKawasaki®
Engine displacement726 cc
Engine power21.5 hp
Ground speed7 mph
Fuel capacity13.2 L
Weight302.6 kg
Deck constructionFabricated X-Factor®
Deck gauge11 ga

Gravely doesn’t publish 10 of these for the ZT X 42 KAWASAKI: transmission, drive type, cut-height range, warranty, commercial warranty, spindle type, frame construction, anti-scalp rollers, drive tire size, seat type.

See the Gravely commercial pro hub › · Professional buying hub ›

Similar models

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

POWER+ 42 in Z6 Zero Turn Mower with e-STEER Technology EGO · 42 in (1067 mm)
POWER+ 42 in Z6 Zero Turn Riding Mower with Six 6.0 Ah… EGO · 42 in (1067 mm)
ZR3 80V HP Brushless 42 in Zero Turn Riding Mower Kit Ryobi · 42 in (1067 mm)
Z2 42 Cub Cadet · 42 in (1067 mm)
80V 42 in Cordless Battery CrossoverZ Zero Turn Lawn Mower Greenworks · 42 in (1067 mm)
Z2 42S Cub Cadet · 42 in (1067 mm)

Specs verified against the retailer listing on Jun 6, 2026 — barryspowerequipment.com.

See every mower with a Kawasaki FR651V engine ›

What the parts on this spec sheet mean

Other Gravely ZT X models › 2 more in this range: ZT X 48 KAWASAKI, ZT X 52 KAWASAKI

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

Mowing time

  • ¼ acre9 min 6 min
  • ½ acre18 min 13 min
  • 1 acre36 min 25 min
  • 2 acres1 h 12 min 51 min
  • 5 acres3 h 2 h 6 min

About 36 min per acre at 1.66 acres/hour, mowing at 4.9 mph. The second figure is at the published 7.0 mph top speed (2.38 acres/hour) — faster than anyone really mows. About 5.8 acres per tank.

Weight & hauling

  • Machine weight667 lb
  • + 6×12 trailer900 lb
  • Towed weight1,567 lb
  • single-axle 3,500 lbCarries it, 1,933 lb spare
  • tandem-axle 7,000 lbCarries it, 5,433 lb spare

Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 1,567 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 inch0.512 hp/in
  • Run time per tank~3.5 h

Mowing times assume 1.66 acres/hour: deck width x 4.9 mph at 80% efficiency, which allows for overlap, turns and trimming. 4.9 mph is 70% of the 7.0 mph top speed Gravely publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 7.0 mph, shown so you can see it.

Fit uses the deck width plus 6 in for the discharge chute, because Gravely 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 Gravely'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.

Gravely ZT X 42 KAWASAKI questions

What size deck is on the Gravely ZT X 42 KAWASAKI?

The Gravely ZT X 42 KAWASAKI has a 42-inch (1067 mm) cutting deck with 11 ga construction.

What engine is in the Gravely ZT X 42 KAWASAKI?

The Gravely ZT X 42 KAWASAKI is powered by a Kawasaki® FR651V, 726 cc, 21.5 hp. Horsepower is the manufacturer's own rating.

How much does the Gravely ZT X 42 KAWASAKI weigh?

The Gravely ZT X 42 KAWASAKI weighs 667 lb (302.6 kg) as specified by Gravely.

What size trailer do I need for the Gravely ZT X 42 KAWASAKI?

At 667 lb, the Gravely ZT X 42 KAWASAKI on a typical 6x12 open utility trailer (about 900 lb empty) is roughly 1,567 lb of towed weight. That is within a single-axle 3,500 lb trailer, and your tow vehicle needs to be rated for at least 1,567 lb. Tongue weight, axle placement and your own trailer's empty weight still have to be checked — this is the arithmetic, not a loading plan.

How fast is the Gravely ZT X 42 KAWASAKI?

Top ground speed is 7 mph. With its 42-inch deck that works out to about 2.38 acres per hour at 80% efficiency — allowing for overlap, turns and trimming.

How long does the Gravely ZT X 42 KAWASAKI take to mow an acre?

About 25 min per acre, from its 42-inch deck at 7 mph and 80% efficiency — roughly 2.38 acres an hour, so five acres is about 2 h 6 min. Rough or obstacle-heavy ground takes longer; this is deck width times ground speed, not a timed test.

How big is the fuel tank on the Gravely ZT X 42 KAWASAKI?

The Gravely ZT X 42 KAWASAKI holds 3.5 gal (13.2 L) of fuel.

How much does the Gravely ZT X 42 KAWASAKI cost?

Gravely's published list price is $4,299, checked 23 October 2026. That excludes tax, freight, dealer setup and any local discount — dealers set the final price.

What is the Gravely ZT X 42 KAWASAKI built for?

Commercial-duty zero-turn mower. Built for daily, paid commercial use.

Source: Gravely (manufacturer) · archived copy

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