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Internet #202520064

Model #915159

Zoom 42 in. 20 HP Kohler 7000 Series V-Twin EZT Transaxles Zero-Turn Riding Mower

Product Overview

Delivery within 7-10 days by a local Ariens representative. At Delivery the customer will be taught by Ariens how to operate and maintain the mower. The Ariens Zoom 42 in. 20 HP Kohler 7000 Series V-Twin EZT Hydrostatic Transaxles Zero-Turn Riding Mower i
  • 20 HP Kohler 7000 Series twin-cylinder engine offers powerful performance
  • Twin EZT hydrostatic transaxles designed to deliver responsive, smooth, effortless control
  • 42 in. cutting width mows more grass in fewer passes
  • 12-gauge, stamped-steel deck with 3 maintenance free spindles and standard side discharge for user convenience
  • Zero turning radius saves you time and helps provide precision control and maneuverability with the tightest turning around obstacles
  • Travels up to 6 mph forward and 3 mph in reverse for efficient mowing
  • Fully welded steel frame with fixed front axle for durability and reliability
  • Foot-operated deck lift with 7 cutting heights ranging from 1.5 - 4.5 in. for a customized operation
  • Adjustable sliding high back seat provides enhanced operator comfort
  • Fully adjustable control arms can be adjusted in 3 different directions to help a ccommodate operator preference
  • 2 Gal. fuel capacity to help reduce refueling needs
  • Includes 3 year limited consumer warranty
  • Platform offers a low center of gravity to ensure improved stability, handling and hill-holding capability
  • Item usually ships in 7-10 business days
  • In most shipping areas, Ariens offers white glove delivery service, Zero-Turn mower will be shipped to your local Ariens authorized servicing dealer for set-up and inspection prior to home delivery, inspection includes operator’s manual confirmation, set tire pressure, check fluid levels, test start unit and file warranty registration information,
  • Disclaimer in qualifying area only - If an Ariens authorized dealer is not in your shipping area, Zero-Turn will ship unassembled, directly to you via regular truck delivery. To confirm White Glove Delivery availability prior to purchasing, call 888-927-4367 option #2.
  • Free White Glove Service available on this riding mower

  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Assembled Depth (in.)
64 in
Assembled Height (in.)
43 in
Assembled Width (in.)
54 in
Cutting Width
42 inches
Front Wheel Size (in.)
Mower Deck Width
42 in
Rear Wheel Size (in.)
Turning Radius (in.)


Assembly Required
CA (CARB) Compliant
Not CARB Compliant
Commercial / Residential
Deck Type
Drive Type
Rear-wheel Drive
Engine Displacement (cc)
Engine Make
OEM Branded
Fuel Tank Capacity (gallons)
Horsepower (hp)
Lawn Mower Type
Zero Turn Mower
Maximum Cutting Height (in.)
Maximum Forward Speed (mph)
Maximum Reverse Speed (mph)
Minimum Cutting Height (in.)
Mower Size
Number of Blades
Number of Cylinders
Number of Deck Wheels
Oil Capacity (oz.)
Product Weight (lb.)
Size of Yard
1/2 - 2 Acres
Start Type
Terrain Type
Flat with Obstacles
Transmission Type
White Glove Service
White Glove Service

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
3 Year Limited Consumer

Questions & Answers


What type of replacement belts do you need for this machine

Asked by Zoomzoom August 27, 2018

Thank you for choosing Ariens. The mower deck belt will be Ariens part number 07200523 and the transmission drive belt will be Ariens part number 07200010.

Will all 42 inch zoom mowers have the same cutting belt

Asked by cw June 20, 2016

No, not necessarily. You will need to either check the owner's manual or the parts manual to identify the exact belt for the exact model.

Release date on new model?

Asked by burbs April 7, 2016

Unfortunately, the Zoom 42 models (915213) are not available through the Home Depot stores this year.


Asked by burbs November 27, 2015

Yes, the new model is model number 915213 and will be available in 2016.

Total width with bagging system on

Asked by Jv November 8, 2015

The bagger adds approximately 12 inches to the width of the mower so the width with the bagger would be approximately 56 inches wide.

what is blade rpm speed on this mower

Asked by TLR October 1, 2015

This mower has a blade tip speed of 17,000.

I would like to install the mulching capabilty system. I just can't find what exactly I need.

Asked by Sean September 24, 2015

There are two different mulching kits depending on your serial number range. To find the correct kit for your machine please contact your local service dealer or contact the Ariens support page at www.ariens.com. Please provide them with your model and serial number and they will be able to assist you.

How much longer will this mower be available?

Asked by JW August 24, 2015

Sorry, I didn't mean when will it be discontinued. I would like to know how much longer before its taken off the site due to Summer almost being over

How much assembley is required when delivered?

Asked by Danny August 21, 2015

I live close to a dealer so the unit was delivered to them for assembly and final delivery.

Is the choke separate from the throttle?

Asked by JW August 3, 2015

Yes, the choke has its own "Pull" lever separate from the throttle.

Zoom 42 in. 20 HP Kohler 7000 Series V-Twin EZT Transaxles Zero-Turn Riding Mower - page 2

Customer Reviews

  • 4.5
    out of 145 reviews
  • 93% recommend this product
Filter by:
Showing 1-10 of 145 reviews
Best residential zero turn mower on the market!
The Ariens Zoom 42 is without a doubt the best built and best value residential zero turn on the market today. I did a lot of research before buying this mower, and looked at similar 42-50" Toro, Troy-Bilt, Cub Cadet, Craftsman, John Deere, and Husqvarna models. The MTD-built mowers (Troy-Bilt, Cub Cadet, etc.) don't mow in reverse (due to a lawsuit), so the PTO disengages the blades when you pull the levers back for more than a second or so...very annoying. You can bypass it by modifying the wiring, but who wants to do that on a brand new mower? The Ariens mows in reverse with no modifications. The Toro Timecutter SS 42" model was at the top of my list until I saw how the deck was attached. Like most of the residential zero turn mowers, the deck attaches with just 1 linkage bar in the front. The back of the Toro deck has brackets that hang on a rod. Other models have 2 rear brackets that connect to linkages with cotter pins. The Ariens has a beefy doubled front linkage and 4 (FOUR!) deck attachment points. It's so secure that the deck doesn't bounce at all when mowing a really bumpy yard. The Ariens is also the only mower I found in this price range with a foot deck lift. This is important because with both hands on the steering levers, you can't grab a lever to raise the deck to mow over a tree root, etc. The foot lift system is excellent and really easy to lift the deck. Consumer Reports (who loves the Troy-Bilt zero turns at Lowes) always gives points to the zero turn mowers that have the parking brake built into the steering levers (when you close them, the parking brake disengages electronically). I actually like the separate parking brake on the Ariens much better...it feels much more solid and isn't electronic, plus it makes opening and closing the steering arms much smoother. The only complaint I read about during my research on the Ariens Zoom 42 was that it burned the grass if you stopped in one spot, but that Ariens dealers can get and install a heat shield to prevent the issue. I'm happy to report that my Ariens Zoom 42 came with this heat shield ALREADY INSTALLED, as well as a trailer hitch. See pictures attached to this review. Since this was the biggest complaint, I almost ordered the heat shield from Ariens before receiving the mower so I could put it on right away...I'm glad I didn't! I ordered the Ariens Zoom 42 on a Thursday from HomeDepot.com, I received an e-mail that it shipped the next week on Tuesday via New England Motor Freight. By Thursday it was at my local Ariens dealer (which normally only sells Ariens snow blowers), prepped, and ready to go. I could have had it delivered that Thursday but chose Friday. My particular dealer went above and beyond prepping the mower...even going so far as to highlight important things in the manual and color the hydro-bypass levers (to push the mower) to make them easier to find. I'm not sure if they adjusted the deck or not, but it's perfectly level and the cut looks GREAT. I have mowed once with the Ariens so far and you can immediately tell it's a quality built mower, which is really hard to find in the residential price range, even with tractor style instead of zero turn mowers. I've never driven a zero turn mower before, but within 10 minutes I figured it out and had no issues. Even while learning the steering, I still mowed by yard (around .75 acre) in half the time. I was originally planning on getting the mulch kit...not so much to recycle grass, but just to block the chute to keep grass out of the driveway, landscaping, etc. I do use my mower to mulch leaves in the fall, and had just the simple plastic chute blocker on my old Craftsman lawn tractor, which worked well. The Ariens deck does have the 2 little bars near the chute that look like a chute cover would bungee to, so I'm going to try to find or make a basic chute cover instead of getting the mulch kit. The mower cuts up the grass so well that barely anything comes out of the chute anyway. Anyway, if you're in the market for a residential zero turn mower, I think the Ariens Zoom series is the way to go. I went with the 42", which I think is the perfect size unless you have a much larger yard. I'm sure the Ariens 50" is an equally awesome machine.
by Ryan
27 people found this helpful
Great entry level residential zero turn mower
This is my first ride mower. I did a lot of research and decided to splurge on a zero turn instead of a standard ride mower. I narrowed my choice down to this Ariens and similar Gravely. They both have 3 blades, reliable powerful engines, great reviews, and excellent consumer warranties. I then learned that they're the same company with Gravely manufacturing mostly commercial equipment. My local Ariens/Gravely dealer assured me that the new Kohler 7000 engine was as good as the Kawasaki on the more expensive Gravely. Additionally, my landscaper told me he'd always had great luck with Kohler engines. I've only used it three times so far but it's been a true joy to use. It takes some getting used to maneuvering it but it's not terribly difficult. You have to be careful cutting near structures and objects because the deck protrudes out from what you see in front of you. The 3 blades cut very well and it has plenty of power and speed for my 1/2 acre. Servicing the engine shouldn't be too hard although the oil plug is awkwardly situated (that's why why they provided a rubber tube). I would have liked a 3 gallon gas tank as I've gone through about 1.5-1.75 gallons per cut so far. I expected a little better mileage. Adjusting the handles, seat, and cutting height were easy. I did try the deck wash out port with a hose but not sure I did it correctly. I only saw water coming out on one side and did not run the cutting deck. I am considering some car ramps or a jack so that I can get to the blades and scrape out any residue underneath.
by trs0722
11 people found this helpful
By this mower
Easy to drive. It took one mowing to get the hang of it but what fun. Looked at a Toro and others but the triple blade deck and reviews sold me on Ariens. Only Ariens had a 42" deck with three blades. The triple blades mows real nice. I bought some nice wheel covers for it. looks real cool.
by Brett
So far so good.
Purchased at the end of the season I've not mowed enough for a very thorough test, but the few hours I have it's worked great. It has impressive power and cutting ability at high speeds. My first zero turn mower so I wondered about learning to steer but it's easy. I mow 1.5 acres with many trees and obstacles and will get my mowing done much faster. The only problem is mowing on a side hill. I was warned of this with the zero turn mowers and it does not work.
by Steve
Great purchase
this is my first zero turn. it is very powerful, and easy to operate. it has cut my mowing time almost in half.
by DSM
2015 Ariens Zoom 42 Model 915159
Very very satisfied with my new 2015 Ariens Zoom 42 Model 915159. One of the best decisions I've made. I also purchased the Ariens 715131 Mulch kit from an online vendor which was fairly easy to install (2 hrs work) and works great. Only thing is there is no discharge cover with the kit. Excessive amount of grass clippings fly out the space between mulch kit and cut deck at the deck's discharge chute and come back on the mower and operator. Also it deposits a small line of clumped cuttings on the lawn. Anyone else have this problem? There are two anchor studs welded to the cutting deck on either side of the discharge chute as if they were designed to hold the discharge cover straps. I've searched and cannot find an Ariens (or Gravely) discharge cover. Is there a compatible discharge cover that will fit the Ariens (Gravely) 42" Zoom (ZTR) deck? It would be the compliment and finishing touch to this Mulching Kit.
1 person found this helpful
Very well built mower
The Ariens Zoom 42 has turned out to be a much better than expected machine. I did some research and found out this company has been around for a long time and after using this more a few times I can easily see why. The deck mounting system is far better than the competition being that it has 4 deck hanging points, you really can stand on it. Don't try that on a different brand, I tried it on a floor model in front of the store and it didn't turn out well. I almost immediately installed the mulching kit and it works very well. I had some really tall grass to cut behind my yard the first time I used the machine and the engine didn't hesitate one bit. I'm happy with the purchase and strongly recommend this mower over any of the same-priced units of any other brand.
by Kent
1 person found this helpful
Overall pretty good machine
Got older so needed a rider and didn't like the tractor type and most rear engine mowers are too narrow. Started out loving this mower but ran into some problems. Thing leaks oil like mad all over the lower part of the engine. Did not trust anyone to tear it apart and MAYBE fix. Just keep adding oil. DO NOT stop on your lawn long after mowing a while. Very poo muffler design and your nice green grass will develop dead brown rectangles where ever you sit and quickly. Cutting is nice and even but keep your blades, 3 of them, sharp and buy a lawn mower lift. This thing is heavy. Deck height adjustment is okay and controls are easy to learn. Get an extra key. I only had one with mine and it broke in short order. Suction is fair and my $500.00 bagger is a nice decoration as thee grass spends a lot of time clogged up in the pipe. If you get a bagger you will loose your hitch to pull your tool trailer. I would not go back to a push mower if I could but I would probably spend more time researching zero turn mowers.
by RatPack38
1 person found this helpful
Replacing a 1994 Craftsman Rider...
We mow a community park with lots of trees, swings, tree roots, volleyball nets, etc. The old mower took 2+ hours to do the job, most of the time spent over-steering around objects, and realigning for another pass. The Ariens eliminates all the excess steering & lining up again for a pass. You can mow right up to an object, spin 270 degrees, and keep going without missing a beat. Now the park gets mowed in a little more than an hour. And, it's actually enjoyable for a change. The old machine bored riders to death, and it was hard to get folks to mow the park. The new one is like driving a sports car, and no boredom in sight. I won't say it was an easy transition, but I found myself getting comfortable with the new steering process in about 15-20 minutes. The 3 blades chewed thru tall grass like a buzz-saw. It is important to watch the back tires when cutting close while steering, not the mower deck, since it pivots around the back tires when turning. And for those who've complained about cooking the grass if parked, Ariens has put in a heat shield under the exhaust. I'm impressed with the machine, all I had to add was a trailer hitch (none included) and an hour-meter (should be standard on all small engines). I have a bad spine, and the seat was more than comfortable. I'd be happy to buy another.
by WhidbeyIslander
Zero Turn Riding Mower
I live in a rural area and have a ditch running in the front of my property by the road. The ditch has a incline on both sides and if the ground is damp from rain the mower will side a little and leave skid marks in the grass. The other problem I found is if you make a sharp zero turn around in one spot the mowers rear wheels will tear up the grass. The cut I get with the mower is very nice and even. Thats what I like about this Ariens mover is the nice even cut, It makes your lawn really stand out looking nice.
by HomeDepotCustomer
4 people found this helpful
Showing 1-10 of 145 reviews