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John Deere D120

2011–201221 HPgasolinelawn
A
Good
Score: 68.4/100
Recalls
322
Found
Known Issues
6
2 high severity
Auction Records
0
No price data
Reliability
A
68/100

Specifications

Engine Power21 HP
Engine (kW)16 kW
Fuel Typegasoline
Transmissionbelt-driven hydrostatic
Categorylawn
Production Years2011–2012

Safety Recalls

322 found
Safety recall — John Deere JD-8R370 (Japanese market, reference 1241810)

Japanese manufacturer safety recall affecting the lighting. Declared production window: 2021–2022.

LightingJP
On certain side-by-side UTVs, the owner's manual is missing information for how a person can contact Transport Canada to report a safety concern.

On certain side-by-side UTVs, the owner's manual is missing information for how a person can contact Transport Canada to report a safety concern. Canadian regulations require all companies to provide this information in the owner's manual.

OtherCA
On certain side-by-side UTVs, the owner's manual is missing information for how a person can contact Transport Canada to report a safety concern.

On certain side-by-side UTVs, the owner's manual is missing information for how a person can contact Transport Canada to report a safety concern. Canadian regulations require all companies to provide this information in the owner's manual.

OtherCA
On certain side-by-side UTVs, the owner's manual is missing information for how a person can contact Transport Canada to report a safety concern.

On certain side-by-side UTVs, the owner's manual is missing information for how a person can contact Transport Canada to report a safety concern. Canadian regulations require all companies to provide this information in the owner's manual.

OtherCA
Safety recall — John Deere JD-7R310 (Japanese market, reference 1241260)

Japanese manufacturer safety recall affecting the electronic control. Declared production window: 2020–2024.

Electronic controlJP
+317 more recalls
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Known Issues

6 reported
2 high2 low2 medium
CA: John Deere Review by Susan from Coldwater, MI (1/5 stars) My D120 Joh
high

My D120 John Deere lawnmower is just over 3 years old (bought Mar 2012). It is stored in a shed, so it's protected when not in use. My aunt was graciously mowing my grass on 6/19/15, when she ran out of gas. She turned off the mower, leaving in the backyard, while she went to buy gas. When she returned 15 minutes later, the fire dept. was already on site; witnesses said the mower burst into flames

fuel_system
Head gasket failure at low operating hours
high

Head gasket failure reported after 72 hours of operation. Dealership indicated this is a widespread issue with D120 models, noting that most machines fail between 60-72 hours before head gasket failure. Consumer unable to determine if machine will reach 200 hours of operation.

engine
CA: John Deere Review by Tiffany from Lambertville, NB (1/5 stars) Purcha
medium

Purchased a D120 ride on mower from Home Depot 2 yrs ago on May 5. Just found out the head gasket was gone. Told to take it to John Deere dealership. Took it and they told us we were lucky to have gotten 72 hrs. Out of our machine most are only getting 60 hrs. before head gasket goes. Called John Deere head office and they told us no problem with the machines. It was that these dealerships do not

fuel_system
CA: John Deere Review by Karla from Camano Island, WA (1/5 stars) I bough
medium

I bought this year's John Deere riding mower model, D120 series. Unfortunately, it has been to a John Deere dealership twice now for engine repair. When talking to the John Deere Co., they basically will stand by the warranty for repairing but once the warranty is up, well, it's good luck. I feel that this particular lawn tractor has issues. If it continues to break down, it should be replaced wit

engine
Poured too much fuel stabilizer for winterizing...leave it until spring?
low

Hi everyone, I am completely new to home ownership, and one of the things the last home owner left for me is a John Deere D120 riding lawn mower. Winter has arrived in my city with heavy snow and I need to winterize the lawn mower. My lawn mower still had about 1.5 gallons of fuel left in the tank. So I bought motomaster concentrated fuel stabilizer. But i misread some instructions and poured in about 3 ounces of fuel stabilizer. Without realizing my mistake, I tried to turn on the engine to try to run the whole fuel+stabilizer mixture through the system. I tried 10 times, but the engine only cranked and made choking sounds...and would stop the moment i let go of the ignition. Did I do serious damage to my D120 lawn mower? If yes, what should i do next? If no, do i just leave things the way they are, then in spring, drain the fuel and pour in new fuel? Thanks

Engine
+1 more issues
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Market Value

No auction data available for this model.

Hours Benchmark

Class: Compact (040 HP)
Low use150 /year
Typical300 /year
High use500 /year
Typical lifetime6,000 hours
Expected life15 years

Have a specific John Deere D120 VIN to check?

Model data shows the average — a VIN/PIN lookup pulls the per-unit history (theft, recalls, prior owners, hours).

Found on the chassis plate or registration papers

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