The Z900 Series is John Deere's line of commercial ZTrak zero-turn mowers for landscape contractors and grounds crews. These gas models use forged 7-Iron mower decks pressed from a single piece of steel, with fewer welds to wear or break.
Koenig Equipment sells the Z900 lineup across Ohio and Indiana, from the Z915E to the 35 HP Z970R. Request a quote on one mower or a full fleet, and our commercial team will help you match engine and deck to your routes.

M models are the core of most fleets. R models list a cross-porting hydraulic transmission and carry the most warranty hours. Several models offer Mulch On Demand decks, FastBack rear-discharge decks or a propane option.
| Model | Engine (gross) | Deck options | Warranty |
|---|---|---|---|
| Z915E | Gas | 7-Iron II deck | Ask our team |
| Z920M | 23.5 HP gas | 48, 54 or 60 inch 7-Iron PRO side discharge | 3 years or 1,200 hours |
| Z930M | 25.5 HP gas | 54 or 60 inch side discharge, 60 inch Mulch On Demand or FastBack | 3 years or 1,200 hours |
| Z950M | 27 HP gas | 60 or 72 inch side discharge, 54 inch Mulch On Demand, 72 inch FastBack | 3 years or 1,200 hours |
| Z930R | Gas, propane option | 7-Iron PRO, Mulch On Demand available | 3 years or 1,500 hours |
| Z950R | 27 HP gas | 54, 60 or 72 inch side discharge, 60 inch FastBack | 3 years or 1,500 hours |
| Z970R | 35 HP gas | 60 or 72 inch side discharge, 72 inch FastBack | 3 years or 1,500 hours |
M and R warranties include the first 2 years with no hour limit, then run to 3 years or the hours shown, whichever comes first. Most model pages show our current price; where one does not, request a quote for fleet pricing, current offers and John Deere Financial options.
In the middle of mowing season, a mower in the shop is a crew standing still. Our service technicians work on commercial ZTrak mowers every day, and genuine John Deere blades, belts, filters and spindle parts are stocked at your Koenig store. You can also order parts anytime on Koenig Marketplace.
Schedule service, or set up a Performance Edge maintenance plan for your fleet.

For diesel power, see the Z900 Series diesel ZTrak mowers. For tight properties, add QuikTrak stand-on mowers or commercial walk-behind mowers. Larger residential properties may be a better fit for the Z700 Series. Shopping pre-owned? Browse used John Deere zero-turn mowers for sale at Koenig, updated as units come in.
What is the difference between M and R Z900 mowers?
R models list a cross-porting hydraulic transmission and carry more warranty hours: 3 years or 1,500 hours versus 3 years or 1,200 hours on M models. Both include the first 2 years with no hour limit.
What is a 7-Iron PRO deck?
It is a mower deck forged from 7-gauge, 0.179 inch steel in a single piece, so there are far fewer welds to wear or break. A 5.5 inch deep deck design moves clippings out quickly.
What is Mulch On Demand?
A 7-Iron PRO deck that switches from side discharge to fully chambered mulching with a single move of a lever.
Can a Z900 run on propane?
Several models, including the Z930M, Z950M, Z930R and Z950R, list a propane option. John Deere's EPA-approved conversion kits are field-installed, and propane tanks are not included.
How fast is a Z900 mower?
The Z920M, Z930M, Z950M, Z950R and Z970R list a speed range of 0 to 12 mph.
What warranty comes with a John Deere Z900?
M models carry 3 years or 1,200 hours and R models carry 3 years or 1,500 hours, whichever comes first, with no hour limit during the first 2 years.
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