John Deere D125
The John Deere D125 is a tractor produced by John Deere Lawn Tractors. It is equipped with a 655 cc 40 ci engine. The listed engine power is Gasoline (gross): 20 hp / 14.9 kW. Transmission: Tuff Torq T40. Operating weight: 438 lbs 198 kg.
Engine Power
Gasoline (gross): 20 hp / 14.9 kW
Fuel & Capacities
2.4 gal
9.1 L
Transmission
Tuff Torq T40
Operating Weight
438 lbs
198 kg
Overview
 | 2014 - 2017
Lawn tractor |
|---|
Production | |
|---|---|
Manufacturer | John Deere |
Lawn tractor | |
Built in Greeneville, Tennessee, USA | |
Original price was $1,799 in 2015 | |
John Deere D125 Engine | |
|---|---|
20HP Briggs & Stratton 655cc 2-cyl gasoline | |
Fuel tank | 2.4 gal
9.1 L |
Engine details ...  | |
John Deere D125 Transmission | |
|---|---|
hydrostatic | |
Transmission details ...  |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Open operator station. |
Dimensions & Tires | |
|---|---|
Weight | 438 lbs
198 kg |
Front tire | 15x6-6 |
Rear tire | 20x8.0-0 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
References | |
|---|---|
 | |
Riding Lawn Tractors published in 2015, by John Deere | |
Riding Lawn Tractors published in 2017, by John Deere | |
Riding Lawn Tractors published in 2016, by John Deere | |
 | |
Operator's Manual D100 Series (OMGX24920) published in 2013 | |
Operator's Manual D100 Series (OMGX25361) published in 2014 | |
Operator's Manual D100 Series (OMGX25410) published in 2014 | |
Operator's Manual D100 Series (OMGX25658) published in 2014 | |
Operator's Manual D100 Series (OMGX26097) published in 2015 | |
Operator's Manual D100 Series (OMUC11804) published in 2016 |
Engine
Engine Detail — 655 cc / 40 ci Gasoline
Manufacturer | Briggs & Stratton 40 |
Fuel Type | Gasoline |
Configuration | 2-cylinder, air-cooled vertical-shaft V-Twin |
Displacement | 655 cc
40 ci |
Bore/Stroke | 2.97x2.89 inches
75 x 73 mm |
Power (gross) | 20 hp
14.9 kW |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — Tuff Torq T40
Transmission | Tuff Torq T40 |
Type | belt-driven hydrostatic |
Gears | infinite forward and reverse |
Oil change | sealed unit, owner service is not recommended |
Beginning with tractor serial number 600001 the TLT200 transmission replaced the T40. | |
 | |
Dimensions
John Deere D125 Tires | |
|---|---|
Lawn/turf front | 15x6-6 |
Lawn/turf rear | 20x8.0-0 |
Dimensions | |
|---|---|
Length | 68.75 inches
174 cm |
Height | 44.5 inches
113 cm |
Weight | 438 lbs
198 kg |
Attachments
Attachment overview | |
|---|---|
42" mid-mount mower deck | |
Snowblower | |
Blade |
42" Mower deck | |
|---|---|
Type | mid-mount 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 inch
2 to 10 cm |
Photos
John Deere D125
John Deere D125
John Deere D125
John Deere D125 operator station and controls.
Recommended Implements & Sizing Guide
Engineering recommendations for John Deere Lawn Tractors John Deere D125 based on its 20 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 1 to 2 Bottom (12")1 - 2 铧 (30 cm) | Light Duty | Ideal for garden plots and light sandy soil. |
Rotary Cutter / MowerMowing & Clearing | 4 ft (48 in)1.2 m | Light Duty | Pasture clipping and light brush under 1" diameter. |
Rotary TillerSeedbed Prep | 42 to 48 in105 - 120 cm | Light Duty | Covers compact tractor tire width. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for John Deere Lawn Tractors John Deere D125.
Estimated Continuous Field Runtime: 2.3 hrs
Approximately 2.3 hours of continuous field operation at ~75% rated power on a full tank (2.4 gal / 9.1 L).
Estimated 75% Load Fuel Burn~1 gal/hr (3.9 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
John Deere Lawn Tractors John Deere D125 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere Lawn Tractors John Deere D125.
Converted Equivalents:
Horsepower (HP)20 hp
Kilowatts (kW)14.9 kW
Metric Horsepower (PS / CV)20.3 PS
Direct Competitor Comparison
Compare John Deere D125 against same-era industry alternatives in the same horsepower class.
Current Model
John Deere Lawn Tractors
John Deere D125
Engine Power:Gasoline (gross): 20 hp / 14.9 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 184 Lo-Boy
Engine Power:18
Production Years:1977 - 1980
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