The John Deere 4400 is a compact utility tractor trusted for its blend of power, versatility, and easy handling. Built from 1998 to 2001, it combines a durable Yanmar diesel engine with either a smooth hydrostatic or rugged 12-speed transmission, making it well-suited for loader work, mowing, or light digging. Its 4WD, reliable hydraulics, and broad attachment options make it a favorite among small farmers and property owners. While some owners note minor hydro pedal or electrical quirks, the 4400 remains respected for its straightforward maintenance, long-lasting build, and all-around dependable performance.
Overview
Model
John Deere 4400
Years
1998 – 2001
Manufacturer
John Deere
Factory
Augusta, Georgia, USA
Type
Compact Utility tractor
Series
4000 Compact Series
Engine
Engine model
Yanmar 3TNE88
Type
Diesel, 3-cylinder, liquid-cooled
Displacement
1.6 L (100.2 ci)
Bore/Stroke
3.46 x 3.54 inches (88 x 90 mm)
Compression ratio
18:1
Rated RPM
2700
Operating RPM
950–2700
Idle RPM
950–2810
Fuel system
Direct injection
Air cleaner
Dry
Pre-heating
Air heater
Power (gross)
35.7 hp (26.6 kW)
Power (net)
33.7 hp (25.1 kW)
Starter volts
12
Starter power
1.9 hp (1.4 kW)
Coolant capacity
6.1 qts (5.8 L)
Oil capacity
4.5 qts (4.3 L)
Oil change interval
200 hours
Recommended oil
By choice
SAE 15W-40
for -10°F to 50°F (-23°C to 10°C)
SAE 5W-30
for -40°F to 50°F (-40°C to 10°C)
SAE 10W-30
for 0°F to 50°F (-18°C to 10°C)
SAE 30
for 40°F to 104°F (4°C to 40°C)
Transmission variants
Options
12-speed partially synchronized (SyncReverser) or hydrostatic
Transmission (SyncReverser)
Type
Partially synchronized
Gears
12 forward and 12 reverse
Clutch
Wet discs, two clutch packs with nine four-inch discs each
Oil capacity
25.2 qts (23.8 L)
Speeds at 2700 RPM
with 11.2-24 tires
1A
0.4 mph [0.6 kph
Transmission (Hydrostatic)
Type
Infinite (3-range)
Gears
Infinite forward and reverse
Oil capacity
27.2 qts (25.7 L)
Speeds at 2700 RPM
with 11.2-24 tires
A-Forward
4.4 mph [7.1 kph
Power
Engine (gross)
35.7 hp (26.6 kW)
Engine (net)
33.7 hp (25.1 kW)
Gear PTO (claimed)
29.5 hp (22.0 kW)
Hydro PTO (claimed)
28.5 hp (21.3 kW)
Mechanical
Drive
Four-wheel drive
Final drives
Spur gear
Differential lock
Mechanical rear
Steering
Power steering
Brakes
Differential wet disc brakes
Operator station
Two-post fixed ROPS, folding ROPS optional
Capacity
Fuel
10 gal (37.9 L)
Hydraulic system
6.3 gal (gear) / 6.8 gal (hydro)
Front axle
4.7 qts (4.4 L)
Hydraulics
Type
Open center
Pump flow
8.3 gpm (31.4 lpm)
Total flow
13.3 gpm (50.3 lpm)
Steering flow
5 gpm (18.9 lpm)
Pressure
2500 psi (172.4 bar)
Valves
2
Oil type
JD Hy-Gard (122°F to 0°F), JD Lo-Vis Hy-Gard (80°F to -40°F)
Serial plate on front-right tractor frame above front wheel
Electrical
Ground
Negative
Charging system
Alternator
Charging amps
40
Battery CCA
500
Battery volts
12
John Deere 4400 overview
The John Deere 4400, built from 1998 to 2001 in Georgia, is a highly regarded member of Deere’s popular 4000 Compact Series — a lineup that made compact utility tractors truly versatile for small farms, landscapers, and property owners. With its dependable 1.6L Yanmar 3-cylinder diesel, the 4400 delivers about 35 horsepower, which was plenty for its time and still holds up well for mowing, loader work, light tillage, and snow removal. Buyers could choose between the smooth hydrostatic transmission for easy forward-reverse operation or the robust 12-speed SyncReverser, which is well-liked for reliability and direct power transfer.
Owners appreciate the 4400’s open-center hydraulics, generous flow rates, and rugged Category I hitch that lifts up to 2200 lbs — enough for a wide variety of implements. The compact wheelbase and 4WD with a mechanical rear differential lock help the tractor stay nimble and stable even on rough terrain or when tackling loader work. Its versatility is boosted by a wide range of attachments, from mid-mount mower decks and snowblowers to the 420 or 430 front-end loaders and even the robust JD 47 or 48 backhoes, which add real digging capability for owners wanting one machine to do it all.
Like many compact tractors of its era, the 4400 is known for its straightforward mechanics and relatively easy maintenance. The Yanmar diesel is considered bulletproof if oil and filters are changed regularly. That said, common issues noted by owners include sticky hydro pedals or worn linkages on high-hour units, minor leaks around hydraulic lines, and occasional electrical gremlins, mostly involving safety switches and the PTO clutch. The hydrostatic transmission is beloved for ease of use but can be expensive to repair if neglected — so fluid checks and timely changes are critical.
Comfort-wise, the 4400 is basic but practical, with a simple ROPS and optional folding configuration for tighter sheds or garages. Its open platform is easy to get on and off, but some operators wish for more suspension or cab protection when used year-round, especially in northern climates.
John Deere 4400 remains a favorite among owners who want a reliable, no-nonsense compact tractor that can run multiple implements and handle a wide range of tasks. Its parts support is strong thanks to Deere’s extensive dealer network, and the 4400’s design strikes a balance between modern features and rugged simplicity. Well-maintained, it’s a compact workhorse that often stays in the family for decades — a testament to its thoughtful engineering and durable build.
