John Deere 6615
The John Deere 6615 is a tractor produced by John Deere. It is equipped with a 414.4 ci 6.8 L engine. The listed engine power is Diesel (listed): 120.3 hp / 89.7 kW. Transmission: John Deere PowrQuad. Operating weight: 15,430 lbs 6999 kg.
Engine Power
Diesel (listed): 120.3 hp / 89.7 kW
Fuel & Capacities
45.4 gal
171.8 L
Transmission
John Deere PowrQuad
Operating Weight
15,430 lbs
6999 kg
Overview
 | 2005 - 2010
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | John Deere |
Utility tractor | |
Built in Montenegro, Brazil | |
John Deere 6615 Engine | |
|---|---|
John Deere 6.8L 6-cyl diesel | |
Engine details ...  |
John Deere 6615 Power | |
|---|---|
Engine | 120.3 hp
89.7 kW |
PTO (claimed) | 103 hp
76.8 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Differential lock | electro-hydraulic |
Steering | hydrostatic power |
Hydraulic wet disc brakes | |
Cab optional. | |
Capacity | |
|---|---|
Fuel | 45.4 gal
171.8 L |
81 gal (optional)
306.6 L | |
Hydraulic system | 16.4 gal
62.1 L |
Front axle | 8.7 qts
8.2 L |
Front hubs | 0.8 qts (each)
0.8 L |
Hydraulics | |||
|---|---|---|---|
Type | closed center | ||
Capacity | 16.4 gal
62.1 L | ||
Pressure | 2900 psi
200.0 bar | ||
Valves | 2 to 3 | ||
Pump flow | 17.44 gpm
66.0 lpm | ||
26.42 gpm (optional)
100.0 lpm | |||
SCV flow | 15.85 gpm
60.0 lpm | ||
25.4 gpm (optional)
96.1 lpm | |||
Oil type | JD Hy-Gard | JD Hy-Gard | |
JD Hy-Gard |
|---|
Tractor hitch | |
|---|---|
Rear Type | II |
Control | electronic lower link |
Rear lift (at ends) | 5,445 lbs
2469 kg |
Rear lift (at 24"/610mm) | 4,762 lbs
2160 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Clutch | electro-hydraulic |
Rear PTO Type | 540 |
540/1000 | |
Dimensions & Tires | |
|---|---|
Wheelbase | 104.3 inches
264 cm |
Front tire | 14.9-26 |
Rear tire | 23.1-30 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 90 |
Battery volts | 12 |
Battery AH | 150 |
References | |
|---|---|
 | |
6415, 6615 & 7515 Tractors published in 2004, by John Deere |
Engine
Engine Detail — 414.4 ci / 6.8 L Diesel
Manufacturer | John Deere 6068T |
Configuration | turbocharged diesel, 6-cylinder, liquid-cooled |
Displacement | 414.4 ci
6.8 L |
Bore/Stroke | 4.19x5.00 inches
106 x 127 mm |
Power | 120.3 hp
89.7 kW |
Rated RPM | 2300 |
Torque | 334 lb-ft
452.9 Nm |
Torque RPM | 1400 |
Starter volts | 12 |
Coolant capacity | 26.4 qts
25.0 L |
Oil capacity | 20.1 qts
19.0 L |
Transmission
Transmission options | |
|---|---|
12-speed fully synchronized | |
16-speed partial power shift |
Transmission — John Deere SyncroPlus
Transmission | John Deere SyncroPlus |
Type | fully synchronized |
Gears | 12 forward and 4 reverse |
Clutch | hydraulic wet disc PermaClutch II |
Oil capacity | 65.5 qts
62.0 L |
Oil type | JD Hy-Gard |
Three synchronized gears (1-3) in four synchronized ranges (A-D). | |
With 18.4x34 R1 rear tires. | |
 | |
JD Hy-Gard |
|---|
Transmission — John Deere PowrQuad
Transmission | John Deere PowrQuad |
Type | partial power shift |
Gears | 16 forward and reverse |
Clutch | hydraulic wet disc PermaClutch II |
Oil capacity | 65.5 qts
62.0 L |
Oil type | JD Hy-Gard |
Four power shift gears (1-4) in four synchronized ranges (A-D). | |
With 18.4-34 R1 rear tires. Reverse speeds are 15% faster than forward speeds. | |
 | |
JD Hy-Gard |
|---|
Dimensions
John Deere 6615 Tires | |
|---|---|
Standard tires (ag) | Front: 14.9-26. Rear: 23.1-30 |
Dimensions | |
|---|---|
Wheelbase | 104.3 inches
264 cm |
Length | 193.7 inches
491 cm |
Height | 107.8 inches
273 cm |
Max weight | 15,430 lbs
6999 kg |
Flange rear axle | |
Rack-and-pinion rear axle | |
Front tread | 63.6 to 84.8 inches
161 to 215 cm |
Rear tread | 71.3 inches
181 cm (flange) |
Rear tread | 61.6 to 91.2 inches
156 to 231 cm (bar) |
Rear tread | 64.4 to 75.5 inches
163 to 191 cm (bar with cab) |
Recommended Implements & Sizing Guide
Engineering recommendations for John Deere 6615 based on its 120.3 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 4 to 5 Bottom (16-18")4 - 5 铧 (40-45 cm) | Heavy Duty | Heavy primary tillage; semi-mounted hitch recommended. |
Rotary Cutter / MowerMowing & Clearing | 10 to 12 ft Flex-Wing3.0 - 3.6 m 折叠双翼 | Heavy Duty | Wide swath pasture and crop residue shredding. |
Rotary TillerSeedbed Prep | 90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机 | Commercial / Field Scale | Deep intensive seedbed preparation for commercial row crops. |
Disc HarrowSecondary Tillage | 15 to 22 ft Folding Disc4.5 - 6.7 m 折叠式圆盘耙 | Commercial / Field Scale | Wide commercial field leveling; requires hydraulic remotes. |
Hay BalerHay & Forage | 5x6 Round Baler or 3x3 Mid Square1.5x1.8 m 大圆捆或中型方捆机 | Heavy Duty | High density baling; requires minimum 85 PTO HP. |
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 6615.
Estimated Continuous Field Runtime: 7.3 hrs
Approximately 7.3 hours of continuous field operation at ~75% rated power on a full tank (45.4 gal / 171.9 L).
Estimated 75% Load Fuel Burn~6.3 gal/hr (23.7 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 6615 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere 6615.
Converted Equivalents:
Horsepower (HP)120.3 hp
Kilowatts (kW)89.7 kW
Metric Horsepower (PS / CV)122 PS
Direct Competitor Comparison
Compare John Deere 6615 against same-era industry alternatives in the same horsepower class.
Current Model
John Deere
John Deere 6615
Engine Power:Diesel (listed): 120.3 hp / 89.7 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 1046
Engine Power:108.5
Production Years:1971 - 1978
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