John Deere ZTrak Z370RS vs. RYOBI RYRM8021 42-IN.
A straight, spec-by-spec look for lawn buyers across Ohio and Indiana. The numbers are only half the decision.
Is the John Deere ZTrak Z370RS right for you?
The Customer looking at battery-powered zero-turns in this class is usually someone who wants to ditch the gas can for good without giving up the feel of a real commercial-style mower. They are weighing run time, cut quality, and whether the machine will still be worth something in five years. The Z370RS carries a 2.46 kilowatt-hour battery pack with an IPx4 weather resistance rating, so you are not babying it around morning dew. The Accel Deep deck has a proven reputation for a clean, consistent cut, and that 20-inch high-back seat with armrests tells you John Deere engineered this for the operator, not just the spec sheet.
The RYOBI edges the Z370RS on total stored energy by a slim margin and charges onboard at a higher wattage, which is worth acknowledging. It also lists a slightly higher top speed. But the Z370RS holds its own on cut width and drive tire sizing, and it backs the battery with a dedicated 5-year coverage term. More importantly, when something needs attention, you have Koenig stores across Indiana and Ohio with genuine John Deere parts on the shelf and technicians who know this machine. That local support and the Z370RS's resale strength are things no spec sheet fully captures.
If you want to walk through how the Z370RS fits your yard size and typical mowing conditions, our team here at Koenig is glad to work through it with you.
| Specification | John Deere ZTrak Z370RS | RYOBI RYRM8021 42-IN. |
|---|---|---|
| Battery | Two 56 V 10 Ah and four 56 V 6 Ah EGO lithium-ion, 2.46 kilowatt-hour total, meets IPx4 rating | Two 80 V 10 Ah and two 40 V 12 Ah lithium-ion batteries, total 2.56 kilowatt-hour, three additional batteries optional |
| Charger | Separate, 800 Watts, 120 V input | On board, 1120 Watts 120 V input |
| Forward speed | 0-7 mph 0-11.3 km/h | 0-8 mph 0-12.9 km/h |
| Front caster tires | 11x6-5 | 13 in. |
| Drive tires | 42A: 18x8.5-8 | 18 in. |
| Seat back height | High back with armrests, 20 in. 51 cm | High back |
| Width of cut | Accel Deep™ mower deck, 42 in. 107 cm in. | 42 in. 107 cm |
| Mulching system | Optional MulchControl™ attachment | Yes |
| Warranty | 3 year or 200 hour bumper-to bumper; 5 year or 200 hour battery* (*Terms limited to years or hours used, whichever comes first, and varies by model. See the LIMITED WARRANTY FOR NEW JOHN DEERE TURF AND UTILITY EQUIPMENT at JohnDeere.com or JohnDeere.ca/TUWarranty for details.) | 5 year for mower and 80V batteries; 3 year for 40 V batteries |
See it at Koenig
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Get a free Property Plan Find Your StoreThe spec sheet is only half the decision
People buy an experience and a partner they trust, not just a machine. With Koenig you also get:
- Performance Edge maintenance — scheduled service, multi-point inspections, genuine John Deere parts, priority scheduling; the 4-year plan adds a year of warranty.
- Parts and service ecosystem — genuine parts, warranty support, certified technicians, and online scheduling.
- Total cost of ownership — John Deere durability, resale value, and uptime often win over the life of the machine.
- A local partner across Ohio and Indiana — a team you can build a relationship around for the life of the equipment.