The John Deere E120 is a dependable, easy-to-use lawn tractor designed for homeowners who want reliable mowing performance with minimal fuss. Built between 2018 and 2020, it features a smooth 20-horsepower V-Twin engine and hydrostatic transmission with cruise control, making it ideal for small to medium lawns. Users appreciate its comfortable seat, simple controls, and durable cast-iron front axle. While the sealed transmission can wear out over time and deck belt adjustments are needed, the E120 remains popular for its good cut quality, straightforward maintenance, and the trusted John Deere reputation in affordable residential mowing.
John Deere, 2-blade with manual lift, cutting width 42 inches (106 cm), overall width 54.9 inches (139 cm), cut height 1 to 4 inches (2 to 10 cm), 13 cut positions
Snowblower
44 inches (111 cm), two-stage, front-mount
Blade
46 inches (116 cm), front-mount
Serial Numbers
2018
J01001
2019
K100001
2020
L200001
Location
Left side of tractor, under fender near rear wheel
Electrical
Ground
Negative
Charging amps
9
Battery CCA
300
Battery volts
12
John Deere E120 overview
The John Deere E120 is part of the well-known E100 Series, built for homeowners who want reliable, simple mowing with a trusted green-and-yellow badge. Produced from 2018 to 2020, this entry-level lawn tractor balances an affordable price with enough features to handle suburban yards comfortably. Powered by a 20-horsepower Briggs & Stratton V-Twin, the E120 offers smooth performance and good starting reliability, though owners should keep up on regular oil changes to avoid valve or carb issues that can pop up with neglected small engines.
The hydrostatic Tuff Torq transmission with cruise control makes cutting the lawn more effortless, and the 5.5 mph forward speed is plenty for small to medium lawns. Many users appreciate the tight turning radius and the straightforward manual steering, although it can feel heavy compared to garden tractors with power steering. One advantage is the cast-iron front axle, which adds durability on uneven terrain and holds up better than cheaper alternatives. However, the sealed hydro unit isn’t owner-serviceable, so when it wears out — often around the 300–500 hour mark on poorly maintained machines — it’s usually cheaper to replace than repair.
Owners like the comfortable seat, easy deck height adjustment, and the reliable mid-PTO clutch for the 42-inch mower deck or optional snow blower. Common complaints include the deck belt jumping off if tensioners aren’t adjusted correctly, and the occasional electrical quirks like low battery output if the charging system isn’t kept clean. Overall, the E120 stands out as a solid step up from the most basic E110, offering just enough power and convenience to handle seasonal chores without overwhelming newer operators. It’s a good, dependable residential mower if maintained well — and when it’s time to upgrade, the E120 holds its resale value because so many homeowners trust the John Deere name.
