Is a 21-inch deck big enough for my lawn?

It is the common size for lawns up to about half an acre. Larger lawns mean more passes and a wider deck or a riding mower makes more sense.

Does self-propelled mean I never push?

The drive pulls the mower forward, so you mostly steer. You still push on tight turns and when the drive is disengaged.

Gas or battery for a lawn this size?

Gas gives unlimited runtime and more torque in tall grass. Battery is quieter and needs no fuel, but you need enough batteries to finish the lawn.

What maintenance does a gas rotary mower need?

Regular oil changes, fresh fuel, an air filter and spark plug check, and blade sharpening. Skipping oil changes is the most common cause of engine trouble.

Can it mulch and bag?

A rotary mower of this type usually mulches, side-discharges or bags depending on the discharge setup. Check which of those the specific model includes.

The deck and engine make it heavier and bulkier than a push mower. Folding handles help, but it takes more garage space than a battery mower.

Where is the 21 Inch Self Propelled Gas Lawn Mower cheapest?

At VXB.com Bearings, for $509.95, as of our latest check.

21 Inch Self Propelled Gas Lawn Mower

Best price now

$509.95at VXB.com BearingsChecked Nov 12

Prices are checked against each store and labelled with when.

Visit VXB.com Bearings

21 Inch Self Propelled Gas Lawn Mower

Best price now

$509.95at VXB.com BearingsChecked Nov 12

Prices are checked against each store and labelled with when.

Visit VXB.com Bearings

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Last seen at $509.95 at VXB.com Bearings on Nov 12.

Our take on the 21 Inch Self Propelled Gas Lawn Mower

A 21-inch self-propelled gas rotary mower, the standard size for a suburban lawn. The self-propelled drive takes the pushing out of mowing, and the 21-inch deck covers ground faster than a 20-inch push mower. It suits homeowners with a quarter acre to about half an acre who want gas power and don't mind routine engine maintenance. Against battery mowers it runs longer without a charge and cuts tall, wet grass with more torque, but it is heavier, louder and needs fuel, oil and spark plug care.

Best forHomeowners with a quarter to half acre of lawnSlopes and long runs where pushing tires you outCutting tall or wet grassBuyers who prefer gas power over battery

Pros

21-inch deck cuts wide and finishes a lawn faster
Self-propelled drive reduces pushing effort
Gas engine keeps torque in tall, thick grass
No battery charge time or range limit
Rotary blade handles typical suburban turf

Cons

Heavier and harder to maneuver than a push mower
Louder than battery or corded electric mowers
Needs fuel, oil changes and spark plug upkeep
Exhaust fumes and fuel storage
Self-propel drive adds parts that can wear

21 Inch Self Propelled Gas Lawn Mower prices at every store

VXB.com BearingsNew
In stock
$509.95Checked Nov 12
Visit VXB.com Bearings

21 Inch Self Propelled Gas Lawn Mower price history

Lowest price we've seen: $509.95 on Nov 13 at VXB.com Bearings. Tracked across 1 store since Nov 13.

Specifications

Power Source: Gas
Blade System: Rotary
Cutting Width: 21″ deck

Questions and answers

Is a 21-inch deck big enough for my lawn?: It is the common size for lawns up to about half an acre. Larger lawns mean more passes and a wider deck or a riding mower makes more sense.
Does self-propelled mean I never push?: The drive pulls the mower forward, so you mostly steer. You still push on tight turns and when the drive is disengaged.
Gas or battery for a lawn this size?: Gas gives unlimited runtime and more torque in tall grass. Battery is quieter and needs no fuel, but you need enough batteries to finish the lawn.
What maintenance does a gas rotary mower need?: Regular oil changes, fresh fuel, an air filter and spark plug check, and blade sharpening. Skipping oil changes is the most common cause of engine trouble.
Can it mulch and bag?: A rotary mower of this type usually mulches, side-discharges or bags depending on the discharge setup. Check which of those the specific model includes.
Is it hard to store?: The deck and engine make it heavier and bulkier than a push mower. Folding handles help, but it takes more garage space than a battery mower.
Where is the 21 Inch Self Propelled Gas Lawn Mower cheapest?: At VXB.com Bearings, for $509.95, as of our latest check.