John Deere Z320M Review
The Z320M adds a 21.5 hp V-twin, 20-in. high-back seat and standard hitch to the 42-in. Z300 platform for a small price step.
- Deck size
- 42 in
- Horsepower
- 21.5 HP
- Drive
- Zero-turn, dual hydrostatic
- Fuel type
- Gasoline
Rating breakdown
Key specifications
| Power type | Gasoline |
|---|---|
| Horsepower | 21.5 HP |
| Engine | Kawasaki FR651V V-twin OHV, air-cooled |
| Displacement | Not published by Deere |
| Fuel type | Gasoline |
| Transmission | Hydro-Gear EZT hydrostatic, twin lever control |
| Drive | Zero-turn, dual hydrostatic |
| Deck size | 42 in |
| Deck construction | Accel Deep, 12-gauge steel (0.105 in), side discharge |
| Cutting height | 1.25 to 4.5 in |
| Blades | Side-discharge blades; MulchControl kit optional |
| Discharge | Side discharge; mulching and bagging with optional kits |
| Top speed | 7 mph forward, 3.5 mph reverse |
| Turning radius | Zero |
| Front tires | 11x6.0-5 casters |
| Rear tires | 18x8.0-8 |
| Weight | 561 lb (no fuel) |
| Dimensions | 42-in. deck; weight 561 lb |
| Fuel capacity | 3.0 US gal (11.3 L) |
| Recommended property size | Up to about 2 acres |
| Battery | 12V, 300 CCA |
| Deck lift | Foot pedal |
| Fuel tank | Translucent |
| Seat | 20 in high back, spring suspension |
| Rear hitch | Standard |
Pros and cons
What we like
- 21.5 hp Kawasaki V-twin
- 20-in. high-back seat
- Rear hitch is standard
- 7 mph top speed
- Small price step over the Z315E
What could be better
- No armrests or LED lights as standard
- Only a 42-in. deck
- Not sold in California
- 3 gal fuel tank
- Small 18x8.0-8 drive tires
Z320M review
John Deere Z320M at a glance
The John Deere Z320M is the step-up 42-inch zero-turn in the Z300 Series. It has a 21.5 hp Kawasaki V-twin. It also has a 20-inch high-back seat and a standard rear hitch. The deck, speed and tires match the Z315E. The upgrades are in power and comfort.
Engine and drive
The engine is a 21.5 hp FR651V V-twin. It is air-cooled with full-pressure lubrication and a replaceable filter. Drive comes from a Hydro-Gear EZT transmission. Twin levers steer the mower. Speed is 7 mph forward and 3.5 mph in reverse.
Deck and cut
The deck is a 42-inch Accel Deep design in 12-gauge steel. Cutting height runs from 1.25 to 4.5 inches. A foot pedal lifts it. The mulch kit and a 6.5-bushel bagger are optional. Both fit the Z315E, Z320M and Z320R.
Seat and comfort
The 20-inch high-back seat is the main comfort upgrade. It has spring suspension and slides 2.8 inches. The Z320M has a cup holder and a storage compartment. Armrests and LED lights are not standard. They are included on the Z320R.
Limits to know about
The Z320M weighs 561 lb. The fuel tank holds 3 gallons. It is not sold in California. It costs about $200 more than the Z315E.
Who should buy it
Buy the Z320M if you mow up to two acres and sit on the machine for a long time. The seat and hitch justify the small price gap over the Z315E. Choose the Z330M if you want a 48-inch deck.
Buying information
Ownership
Frequently asked questions
How much horsepower does the John Deere Z320M have?
21.5 hp from a Kawasaki FR651V V-twin.
What is the difference between the Z320M and Z315E?
The Z320M has more power, a 20-inch high-back seat and a standard rear hitch.
Does the Z320M have armrests?
No. Armrests come standard on the Z320R.
What deck size does the Z320M have?
A 42-inch Accel Deep deck.
Can I buy the Z320M in California?
No. Deere lists it as not available for sale in California.
Owner reviews
No owner reviews yet. Own one? Be the first to share what it is like to live with.
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