Home / Mowers / Groundmark Pro 21

Walk-behind mower · 21 in In stock · ships from Dallas

Groundmark Pro 21" All-Wheel-Drive Commercial Walk-Behind Mower

21-inch walk-behind mower with variable-speed all-wheel drive and a blade brake clutch.

5.0 (4 reviews)

$269.40 $629.00 SAVE $359.60 (57% OFF)

In stock · ready to ship Ships tomorrow Order today and it leaves our Dallas, TX warehouse tomorrow.

Tracking number sent by email as soon as the freight carrier picks up your order.

Secure, encrypted checkout

3-year warranty
30-day returns
Free delivery

Cutting width

21 in

Drive

AWD

Variable speed

Cutting modes

3-in-1

Mulch, bag, side

Blade control

BBC

Blade brake clutch

Overview

Grip on steep and wet ground.

Variable-speed all-wheel drive keeps the Pro 21 pulling on steep grades and wet turf. The engine has a cast-iron sleeve, and the blade brake clutch stops the blade without shutting the engine off, so you can empty the bag or clear a path and carry on.

All-wheel drive Variable speed.
Blade brake clutch Stop the blade, not the engine.
3-in-1 cutting Mulch, bag, or side discharge.

Groundmark Pro 21

Specifications

Figures for this model. If you need a detail that isn’t listed, ask us and we’ll check before you order.

Ask about this model

Cutting deck	21 in cast steel
Drive	Variable-speed all-wheel drive
Engine	Commercial engine with cast-iron sleeve
Blade control	Blade brake clutch (BBC)
Cutting modes	Mulch, bag, side discharge
Bagger	High-capacity rear bagger

Customer reviews

Reviews from Groundmark Pro 21 owners.

5.0

Based on 4 reviews

100% (4)

0% (0)

Customer photos (3)

Mark R.

Runs whole house including 4-ton AC without flinching

David M.

Clean freight delivery and great build quality

Travis H.

Fuel versatility is a complete lifesaver

Mark R.

Tyler, TX

October 24, 2026

★★★★★

Runs whole house including 4-ton AC without flinching

Ordered the Groundmark Pro 21" All-Wheel-Drive Commercial Walk-Behind Mower after getting tired of sitting in the dark during Gulf storms. Freight delivery arrived on a liftgate truck right onto my concrete driveway. Hooked it into our manual transfer switch with a 50A cord and ran our central 4-ton AC, two refrigerators, well pump, and all household lights. Electric start fired right up on propane.

David M.

Broken Arrow, OK

October 12, 2026

★★★★★

Clean freight delivery and great build quality

Driver called me 24 hours ahead of time to coordinate delivery. Unit was bolted onto a heavy pallet and wrapped securely. Added oil, connected a 100-lb propane tank, and pushed the start button. Purrs like a kitten and the digital meter makes monitoring voltage and hours simple. Couldn't ask for a better machine at this price point.

Travis H.

Ocala, FL

September 28, 2026

★★★★★

Fuel versatility is a complete lifesaver

The tri-fuel capability was the main selling point for me. Being able to connect directly to our residential natural gas line means no more storing 50 gallons of stale gasoline in the garage. Build quality is solid industrial grade and the frame feels bulletproof.

Gary W.

Marysville, OH

September 15, 2026

★★★★★

Remote start key fob works from inside the house

Tested the wireless remote start from about 80 feet away through the back patio door—started immediately. It is surprisingly quiet for an engine of this displacement. Very impressed with the packaging and complete hardware kit included.

Groundmark Pro 21

Questions and answers

Can’t find what you need? Send us a message and we’ll get back to you.

What does the blade brake clutch do?

It stops the blade while the engine keeps running, so you can empty the bagger or cross a driveway without restarting.

Does it bag and mulch?

Yes. It mulches, bags into the rear bagger, or side-discharges.

How does delivery work?

Delivery is free to residential addresses. Orders ship from our Dallas, TX warehouse, and larger items arrive by freight with a liftgate drop at your curb or driveway. You get a tracking number by email as soon as the carrier picks up your order.