Spec Comparison
John Deere ZTrak Z370R 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.
| Specification | John Deere ZTrak Z370R | RYOBI RYRM8021 42-IN. |
|---|---|---|
| Battery | One 58 V lithium-ion, 3.56 kilowatt-hour maximum (3.20 kilowatt-hour nominal), sealed and meets IP66 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 | On board, 700 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 48A: 20x10-8 | 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 Accel Deep™ mower deck, 48 in. 122 cm | 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
Real pricing, financing, and a machine you can put to work this season.
Current Offers Apply for FinancingNot sure what fits?
We will walk your property and match the right machine to how you work.
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.
Specifications are subject to change and were accurate at time of publication. Engine power for non-Deere machines is provided by that engine manufacturer. See your local Koenig Equipment store for complete details.