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Kubota W821SC

Push / Walk-Behind mower · Model W821SC · Residential-duty · Gas

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

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

The Kubota W821SC is a residential-grade gas walk-behind mower, suited to small-to-mid home lawns, with a 21-inch deck and a 163cc engine making 4.3 hp. It weighs 136.7 lb (62 kg).

At a glance

Power Source
gas
Cutting Width
20.9 in (530 mm)
Displacement
9.9 ci (163 cc)
Drive Type
Self-propelled
Weight
137 lbs (62 kg)
Compare this mower: Pick another Kubota push / walk-behind or pick from every push / walk-behind mower sold in Australia   or quick compare: vs W821S
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
  • Deck 530 mm (20.9 in) · 4.3 hp, 163 cc
    Weight 53 kg (117 lbs) (this model: 62 kg (137 lbs))Max cut height 77 mm (3 in) (this model: 82 mm (3.2 in))
    Why: Same class: push / walk-behind · Same 20.9 in deck · Gas engine, like this model · Residential-duty, like this model · 4.3 hp (this model: 4.3 hp) · Also by Kubota
    Compare with the W821SC ›
  • Deck 533 mm (21 in) · Honda GXV160, 163 cc · RRP A$1,899
    Fuel capacity 1.5 L (0.4 gal) (this model: 1.8 L (0.5 gal))Weight 52 kg (115 lbs) (this model: 62 kg (137 lbs))
    Why: Same class: push / walk-behind · 21 in deck, within 2 in of this model's 20.9 in · Gas engine, like this model · Residential-duty, like this model · By Bushranger, a different maker
    Compare with the W821SC ›
  • Deck 530 mm (20.9 in) · 166 cc · RRP A$1,299
    Fuel capacity 0.9 L (0.2 gal) (this model: 1.8 L (0.5 gal))Weight 40 kg (88 lbs) (this model: 62 kg (137 lbs))
    Why: Same class: push / walk-behind · Same 20.9 in deck · Gas engine, like this model · Residential-duty, like this model · By Honda, a different maker
    Compare with the W821SC ›
  • Deck 530 mm (20.9 in) · 201 cc · RRP A$1,799
    Fuel capacity 0.9 L (0.2 gal) (this model: 1.8 L (0.5 gal))Displacement 201 cc (12.3 ci) (this model: 163 cc (9.9 ci))
    Why: Same class: push / walk-behind · Same 20.9 in deck · Gas engine, like this model · Residential-duty, like this model · By Honda, a different maker
    Compare with the W821SC ›
  • Deck 533 mm (21 in) · Air cooled, single cylinder OHV, vertical shaft, normally aspirated petrol four stroke engine, 196 cc · RRP A$1,399
    Displacement 196 cc (12 ci) (this model: 163 cc (9.9 ci))Fuel capacity 1.5 L (0.4 gal) (this model: 1.8 L (0.5 gal))
    Why: Same class: push / walk-behind · 21 in deck, within 2 in of this model's 20.9 in · Gas engine, like this model · Residential-duty, like this model · By Bushranger, a different maker
    Compare with the W821SC ›

Chosen by stated rules, not opinion: same class, a deck within 2 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

Kubota W821SC engine specifications
Power Sourcegas
Displacement9.9 ci (163 cc)
Engine Power4.3 hp
Cylinders1

Deck

Kubota W821SC deck specifications
Cutting Width20.9 in (530 mm)
Min Cut Height0.9 in (22 mm)
Max Cut Height3.2 in (82 mm)

Drive

Kubota W821SC drive specifications
Drive TypeSelf-propelled

Dimensions

Kubota W821SC dimensions specifications
Weight137 lbs (62 kg)
Fuel Capacity0.5 gal (1.8 L)

General

Kubota W821SC general specifications
Bagger Capacity2.1 bu (75 L)

Similar models

Other push / walk-behind mowers with comparable specs — including other brands — that buyers cross-shop with the W821SC.

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

Gate & trailer fit

  • 32 in gateFits
  • 36 in gateFits
  • 48 in gateFits

Needs at least 27 in of clearance (estimated).

Power & run time

  • Power per deck inch0.206 hp/in
  • Run time per tank~0.5 h

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

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

Source: Kubota (manufacturer) · archived copy

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