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Walker Walker Model S18

Commercial mower · Model S18 · Commercial-duty · Gas

Walker doesn’t publish a list price for this model — it’s dealer quote only. The Walker product page is the place to start.

Weighs 675 lb
On a 6×12 trailer 1,575 lb towed, single-axle 3,500 lb
How these are worked out ›

The Walker Model S18 is a commercial-grade gas commercial mower, built for daily commercial mowing, with a 56-inch deck and a 570cc engine making 18 hp. It weighs 674.6 lb (306 kg).

At a glance

Power Source

gas

Cutting Width

56 in (1422 mm)

Engine Make

Briggs & Stratton Vanguard

Displacement

34.8 ci (570 cc)

Engine Power

18 hp

Transmission

Dual, Independent Hydro-Gear® ZT3100 Integrated Transaxles

Compare this mower: Pick another Walker commercial or pick from every commercial mower or quick compare: vs Walker Model B23 · vs Walker Model B27i · vs Walker Model B27ix

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Husqvarna Z454

Deck 54 in (1372 mm) · Kawasaki FS Series V-Twin, 22 hp, 725.9 cc

Fuel capacity 6 gal (22.7 L) (this model: 4 gal (15.1 L))Displacement 44.3 ci (725.9 cc) (this model: 34.8 ci (570 cc))

Why: Same class: commercial · 54 in deck, within 8 in of this model's 56 in · Gas engine, like this model · Commercial-duty, like this model · 22 hp (this model: 18 hp) · By Husqvarna, a different maker
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John Deere W52RCommercial Walk-Behind Mower

Deck 52 in (1321 mm) · 19 hp, 603 cc

Fuel capacity 5.4 gal (20.4 L) (this model: 4 gal (15.1 L))Max cut height 4.5 in (114 mm) (this model: 4 in (102 mm))

Why: Same class: commercial · 52 in deck, within 8 in of this model's 56 in · Gas engine, like this model · Commercial-duty, like this model · 19 hp (this model: 18 hp) · By John Deere, a different maker
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Gravely PRO-WALK 52 KAWASAKI

Deck 52 in (1321 mm) · Kawasaki® FS600V, 18.5 hp, 603 cc

Fuel capacity 5.8 gal (22 L) (this model: 4 gal (15.1 L))Weight 770 lbs (349.3 kg) (this model: 675 lbs (306 kg))

Why: Same class: commercial · 52 in deck, within 8 in of this model's 56 in · Gas engine, like this model · Commercial-duty, like this model · 18.5 hp (this model: 18 hp) · By Gravely, a different maker
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Kubota WHF19NC-52-2

Deck 52 in (1321 mm) · Kawasaki FS600V, 18.5 hp, 603 cc

Fuel capacity 5 gal (18.9 L) (this model: 4 gal (15.1 L))Weight 832 lbs (377.4 kg) (this model: 675 lbs (306 kg))

Why: Same class: commercial · 52 in deck, within 8 in of this model's 56 in · Gas engine, like this model · Commercial-duty, like this model · 18.5 hp (this model: 18 hp) · By Kubota, a different maker
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Exmark Radius E-Series (RDE 54 in)

Deck 54 in (1372 mm) · Kawasaki FR691, 23 hp

Fuel capacity 7 gal (26.5 L) (this model: 4 gal (15.1 L))Engine power 23 hp (this model: 18 hp)

Why: Same class: commercial · 54 in deck, within 8 in of this model's 56 in · Gas engine, like this model · Commercial-duty, like this model · 23 hp (this model: 18 hp) · By Exmark, a different maker
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Chosen by stated rules, not opinion: same class, a deck within 8 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

Walker Walker Model S18 engine specifications
Power Source	gas
Engine Make	Briggs & Stratton Vanguard
Displacement	34.8 ci (570 cc)
Engine Power	18 hp
Fuel Type	Regular grade unleaded gasoline (87 octane minimum, 10% ethanol maximum)

Deck

Walker Walker Model S18 deck specifications
Cutting Width	56 in (1422 mm)
Max Cut Height	4 in (102 mm)
Min Cut Height	1 in (25 mm)

Drive

Walker Walker Model S18 drive specifications
Transmission	Dual, Independent Hydro-Gear® ZT3100 Integrated Transaxles

Dimensions

Walker Walker Model S18 dimensions specifications
Weight	675 lbs (306 kg)
Fuel Capacity	4 gal (15.1 L)

Professional use

How the Walker Model S18 fits commercial and high-acreage work, from the specs we have. Duty class: Commercial.

Acres/hour can't be computed for this model — deck width or ground speed is not specified by manufacturer.

Walker Walker Model S18 professional and productivity specifications
Deck width	56 in
Engine make	Briggs & Stratton Vanguard
Engine displacement	570 cc
Engine power	18 hp
Transmission	Dual, Independent Hydro-Gear® ZT3100 Integrated Transaxles
Cut-height range	25 mm – 102 mm
Fuel capacity	15.1 L
Weight	306 kg

Walker doesn’t publish 11 of these for the Walker Model S18: drive type, ground speed, warranty, commercial warranty, deck construction, deck gauge, spindle type, frame construction, anti-scalp rollers, drive tire size, seat type.

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

Similar models

Other commercial mowers with comparable specs — including other brands — that buyers cross-shop with the Walker Model S18.

Turf Tracer S-Series (52 in) Exmark · 52 in (1321 mm)

W52RCommercial Walk-Behind Mower John Deere · 52 in (1321 mm)

WHF19NC-52-2 Kubota · 52 in (1321 mm)

Nemesis Mean Green · 60 in (1524 mm)

Vanquish Autonomous Mean Green · 60 in (1524 mm)

W48RCommercial Walk-Behind Mower John Deere · 48 in (1219 mm)

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

See every mower with a Briggs & Stratton engine ›

What the parts on this spec sheet mean

See all Walker mowers and specs ›

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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 Walker’s own numbers — not published by the manufacturer.

Weight & hauling

Machine weight675 lb
+ 6×12 trailer900 lb
Towed weight1,575 lb
single-axle 3,500 lbCarries it, 1,925 lb spare
tandem-axle 7,000 lbCarries it, 5,425 lb spare

Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 1,575 lb.

Gate & trailer fit

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

Needs at least 62 in of clearance (estimated).

Power & run time

Power per deck inch0.322 hp/in
Run time per tank~4.0 h

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

Walker Walker Model S18 questions

What size deck is on the Walker Walker Model S18?

The Walker Walker Model S18 has a 56-inch (1422 mm) cutting deck.

What engine is in the Walker Walker Model S18?

The Walker Walker Model S18 is powered by a Briggs & Stratton Vanguard, 570 cc, 18 hp. Horsepower is the manufacturer's own rating.

How much does the Walker Walker Model S18 weigh?

The Walker Walker Model S18 weighs 675 lb (306 kg) as specified by Walker.

What size trailer do I need for the Walker Walker Model S18?

At 675 lb, the Walker Walker Model S18 on a typical 6x12 open utility trailer (about 900 lb empty) is roughly 1,575 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 1,575 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 big is the fuel tank on the Walker Walker Model S18?

The Walker Walker Model S18 holds 4 gal (15.1 L) of fuel.

How much does the Walker Walker Model S18 cost?

Walker doesn't publish a list price for the Walker Walker Model S18 — it's sold on a dealer quote. MowerFacts records prices only where the manufacturer publishes them.

What is the Walker Walker Model S18 built for?

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

Source: Walker (manufacturer) · archived copy