John Deere Z315E ZTrak zero-turn lawn mower, front three-quarter view

John Deere

Z315E ZTrak 42-in. 20-HP V-Twin Gas Zero-Turn Riding Lawn Mower

4.7 (1,284 reviews) · Item # 5013960257
$2,399$3,399Save $1,000
  • 20 HP (14.9 kW) V-Twin gas engine — smooth, powerful mowing
  • 42-in. Accel Deep™ mower deck for a clean, even cut
  • Dual hydrostatic transmission — precise zero-turn control
  • Maximum forward speed of 7 mph (11.2 km/h)
Free curbside delivery
3-year warranty

Overview

The John Deere Z315E ZTrak delivers pro-grade cutting performance for residential yards up to 2 acres. A 20 HP V-Twin engine pairs with the 42-in. Accel Deep™ deck for a fast, clean cut, while dual hydrostatic drive gives you true zero-turn maneuverability around trees, beds and obstacles.

  • 20 HP (14.9 kW) V-Twin gas engine — smooth, powerful mowing
  • 42-in. Accel Deep™ mower deck for a clean, even cut
  • Dual hydrostatic transmission — precise zero-turn control
  • Maximum forward speed of 7 mph (11.2 km/h)
  • High-back seat with armrests for all-day comfort
  • 3-gal. fuel tank for extended mowing between fill-ups
  • 3-year / 200-hour bumper-to-bumper warranty
  • Assembled in Tennessee, USA

Specifications

Model
Z315E (BG21296)
Engine power
20 HP (14.9 kW)
Engine model
40 EXi V-Twin
Deck size
42 in. Accel Deep™
Transmission
Dual hydrostatic
Forward speed
0–7 mph
Fuel capacity
3 gal.
Front caster tires
11 x 6-5
Drive tires
18 x 8.5-8
Recommended mowing
Up to 2 acres
Warranty
3 years / 200 hours

Customer Reviews

4.7

Based on 1,284 verified reviews

93% recommend this product

5 star
982
4 star
214
3 star
58
2 star
18
1 star
12
March 12, 2026

Cuts my 1.5 acres in under an hour

Upgraded from a lawn tractor and I'm blown away. The 20 HP V-Twin has plenty of power in tall grass and the 42-in deck leaves a clean, even cut. Zero-turn takes a day to master, then you'll never go back.

Michael R.· Springfield, MOVerified Purchase
142
February 28, 2026

Built like a tank

Solid frame, comfortable high-back seat, and the dual hydros are smooth. Delivery from Lowe's was on time and the crew placed it right in the garage. Very happy so far.

Karen B.· Raleigh, NCVerified Purchase
98
February 6, 2026

Great mower, wish it had cruise

Handles hills up to about 15 degrees no problem. Only knock is no cruise control on the E series — after two hours my thumbs are a little tired. Cut quality is excellent.

Dan T.· Boise, IDVerified Purchase
61
January 19, 2026

John Deere quality at a fair price

I compared it against three other brands at Lowe's and the fit and finish on the Z315E was noticeably better. Two months in and it starts on the first turn every time.

Jorge M.· Tampa, FLVerified Purchase
44

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