Model # 911193

Internet #203436847

Ariens Classic 21 in. Straight Axle Gas Self Propelled Mower


Classic 21 in. Straight Axle Gas Self Propelled Mower

  • Ariens Classic mowers are powerful, rugged and dependable
  • Commercial Kawasaki 179cc engine will deliver years of service
  • Infi-Speed variable self propelled drive system
$74900 /each
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Product Overview

The Ariens Classic 21 in. Self-Propelled Straight Axle Walk Behind Lawn Mower will provide you with professionally manicured results. The 3-in-1 system makes it easy for you to quickly transition from mulch to bag to side-discharge. The powerful Kawasaki.

  • Variable speed self propelled drive ensures a comfortable mowing pace
  • 21 in. cutting deck
  • High-lift blades to maximize bagging efficiency
  • 6 cutting positions
  • 1 in. to 3 1/4 in. height of cut adjustment
  • 14-Gauge stamped steel deck
  • 4 position adjustable handlebar to a ccommodate operator
  • 3 in 1 cuting system includes mulch, bag or side discharge
  • Includes 3-year limited consumer warranty
  • Item usually ships in 7-10 business days
  • Delivered to your door mostly assembled, simple assembly instructions included

Info & Guides

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$508.59 /each
$749.00 /each
$796.60 /box
$849.00 /each
Name Razor 21 in. Variable Speed Walk Behind Gas Self Propelled Mower Classic 21 in. Straight Axle Gas Self Propelled Mower 21 in. Variable Speed Swivel Wheel Gas Self Propelled Mower 21 in. Variable Speed Electric Start Gas Self Propelled Mower
Brand Ariens Ariens Ariens Honda
Ratings (49) (32) (52) (269)
Power Type Gas Gas Gas Gas
Drive Type Rear-wheel Drive Rear-wheel Drive Rear-wheel Drive Rear-wheel Drive
Features Bagger,Foldable handle,Mulching Lawn Mower,Rust resistant deck,Single-lever height adjustment,Tool-free adjustments Bagger,Foldable handle,Mulching Lawn Mower,Rust resistant deck,Tool-free adjustments Bagger,Foldable handle,Mulching Lawn Mower,Rust resistant deck,Swivel front wheel,Tool-free adjustments Bagger,Blade Brake,Foldable handle,Mulch Switch,Mulching Lawn Mower,Rust resistant deck,Tool-free adjustments
Refurbished No No No No
Size of Yard 1/4 - 1/2 Acre 1/4 Acre or Less 1/4 Acre or Less 1/4 - 1/2 Acre
Start Type Pull Pull Pull Electric
View Product View Product View Product View Product



Assembled Depth (in.)
39 in
Assembled Height (in.)
20 in
Assembled Width (in.)
24 in
Blade Length (in.)
21 in
Cutting Width
21 inches
Front Wheel Size (in.)
Mower Deck Width
Rear Wheel Size (in.)


Assembly Required
CA (CARB) Compliant
CARB Compliant
Cutting Options
Drive Type
Rear-wheel Drive
Engine Displacement (cc)
Engine Make
Engine Torque (ft.-lb.)
Bagger,Foldable handle,Mulching Lawn Mower,Rust resistant deck,Tool-free adjustments
Fuel Tank Capacity (gallons)
Engine oil
Lawn Mower Type
Self-Propelled Lawn Mower
Maximum Cutting Height (in.)
Minimum Cutting Height (in.)
Number of Blades
Number of adjustable handlebar positions
Oil Capacity (oz.)
Power Type
Product Weight (lb.)
Recommended Oil Type
SAE 10W-30
Size of Yard
1/4 Acre or Less
Start Type
Terrain Type
Uneven with Obstacles
Walk Behind Mower Type
Self Propelled

Warranty / Certifications

Manufacturer Warranty
3 Year Limited Consumer

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Customer Questions & Answers

If I order a lawn mower online and have it shipped to a store, will they assemble it?

Asked by: Buck
Home Depot needs to answer, please.
Answered by: Ariens
Date published: 2016-07-02

#911193 model mower. What is the horsepower?

Asked by: Buck
The horsepower of most Ariens Classic LM is 6hp. The older ones (like mine) is 6.5hp. Hopefully this is a help for you. I think it is very powerful, you will not have any issues with this mower it is a great mower all the way around.
Answered by: RYthePRO
Date published: 2016-07-05

Speed control? Detacher attachment available? Rear wheels taller?

Asked by: erica
Yes, this has a variable speed control that can go up to 4 mph. The dethatcher for this unit is kit # 71102400. Also, the rear wheels are taller, sitting at about 10" while the fronts are 7.5". Hope this helps!
Answered by: Ariens
Date published: 2017-05-25

Does it have a prime bulb? Can I dethacher attachment be added? What size are the front and rear wheels? Variable spee

If not please suggest a model
Asked by: erica
Answered by: Erin
Date published: 2017-06-09
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Customer Reviews

Classic 21 in. Straight Axle Gas Self Propelled Mower is rated 4.4 out of 5 by 31.
Rated 3 out of 5 by from Overall, I'm pleased with the mower, good strong engine, starts easily and cuts well. There are ... Overall, I'm pleased with the mower, good strong engine, starts easily and cuts well. There are a couple of things that I don't like about it. First thing, it's heavy, ok for when you're going forward with the help of the self-drive, but I have a lot of bushes to mow around and odd sidewalk angles the require a lot of turning and backing up which leads to my second dislike. Second is the design of the handlebar and the wheel drive control handle and the "operator presence control handle" (the small bars you squeeze to keep the engine running and for the self propulsion). They are very uncomfortable because of their design. Most high quality mowers handlebars have these control bars recess into the handlebar or they are contoured to curve to the shape of the handlebar. This mower has neither, very uncomfortable! Like trying to hold a phillips-head screwdriver both against the front and back side of the handlebar while you mow! Poor engineering! One last thing I found that I can fix is the flimsy cradle the holds the gas tank, the gas tank isn't bolted down, just has a cradle that's supposed to secure the tank and mine vibrates around. Ok mower, but expected a little better design for the money.
Date published: 2017-04-25
Rated 5 out of 5 by from Had this same model for over twenty years. I have owned mine for over twenty years... I had not had to do one thing to the drive train. No new belts, no new blades. It just keeps rolling. After about 15 years I updated the engine. Did it myself. My best friend bought a John Deer the same day. his was trash after about five years. Send me a NEW one and I'll grade it against my old one, and give you tips.
Date published: 2017-06-23
Rated 5 out of 5 by from I like this mower a lot. Once I learned not to fight against it, we get along well. Lots of power... I like this mower a lot. Once I learned not to fight against it, we get along well. Lots of power, easy to control, sure footed with strong self-propel. Would prefer throttle control, but would definitely buy again.
Date published: 2017-02-28
Rated 5 out of 5 by from Everything about it is great!! This is the best mower I have ever used. I bought it over 3 years ago and use it 3-4 times per week and it starts right up every time. I highly recomend this mower to a homeowner or professional landscaper. I use it for small and large lawns and it dose well with both. If you are looking for a mower that is going to last and not require a lot of money to keep up this is the mower you need to get. I have had no problems with it except for a few minor problems that are normal to all mowers. I love ariens and will not use any other product. Some of the good features I like about it are: -it has a big bag that I rarly need to empty -good strong engine -very low maintenance
Date published: 2013-10-15
Rated 5 out of 5 by from 21 years old and still running cast-iron sleeve is the... Upgrade to the best! Buy an ariens LM 21S! The self-propelled on this mower is industry-leading it not only pulls you uphills but it stops you from rolling down hills when turned on. The other thing I like about ariens mowers is their use of quality engines most mowers on the market use aluminum cylinders which wear out very quickly the Kawasaki Engine has a cast-iron sleeve my ariens mower has a Tecumseh vector engine which also has a cast-iron sleeve. Honda mowers do not have cast-iron sleeves nor do most MTD mowers or craftsman this is a very good mower for anyone who want something that will last. The deck is very well constructed, my neighbor just throughout a Honda mower with a rusted out deck that was much newer.
Date published: 2012-06-30
Rated 5 out of 5 by from I love my Ariens walk behind zero-turn/pivot front wheels I was so impressed with how well I liked my Ariens snow blower, that I had to try their walk behind mower and boy! This is a sweet machine! It's built to last in WI with the quality I associate with Ariens and the Kawasaki engine is so quiet, smooth, powerful and easy to care for. One prime, one pull, starts every time!! I have nearly an acre of sod on a hilly 2.5 acre lot with several gardens, trees and septic pipes to edge. I enjoy trimming around these before getting out the rider and I was tired of how poorly other brands worked with their fixed wheels, chewing up my lawn around the smaller radius pipes and trees. That's why I wanted the swivel wheels from Ariens. The mower works like a charm and gives me a wonderful cut or mulch. The infinitely variable speed control and differential rear wheels gives me a wonderful variety of options, if I decide to walk mowing the lawn vs. the rider for a little extra exercise doing the yardwork:) Ariens installed large diameter rears with smaller front wheels and I have no problems getting into small areas and still have the comfort from the bigger wheels. Note, this machine is *heavy*, but with the beautifully adjustable drive system that Ariens put on this, it's no problem to maneuver. If I have *any* complaints, they are minor for me, one is that adjusting the front wheels requires you to remove a cotter pin and two is to change from a side discharge chute to the mulch shield needs a wrench or socket driver. These are minor and I don't change them very often, so if you find that you like to adjust these during a mowing session, you won't like how it's done on this machine. I haven't used the bagging system for my Ariens LM21, because of the size of my lawn. If I decide to bag my lawn clippings, I'll use the side discharge on my Ariens during my trimming and bag everything with my riding mower. Bottom line, this is the *best* walk behind mower that I've ever used in 40 years and I love it! I have no reservations in recommending it.
Date published: 2013-06-13
Rated 5 out of 5 by from 1989 Still Going strong! Bought new In 1989, Good old 5HP Tecumseh "Vector" Engine always starts first pull, Even after sitting all winter. Swivel wheels Make turning so easy! And the Vacuum Action sucks up leaves in the fall. If this mower ever does give out finally, You can bet what kind Will be replacing it.... Yep! Another Ariens 21 LMS.
Date published: 2013-02-19
Rated 2 out of 5 by from The rear wheels will not disengage The rear wheels will not disengage and thus all turning tears up the grass. The manual does not address this and so I have no idea how to fix this. Really shouldn't have to fix something that was delivered in the last month anyway.
Date published: 2013-06-13
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