John Deere 670
Power
19 hp
Production
1989-1997
Engine
Diesel, 3-cylinder
Transmission
Unsynchronized gear
Weight
1860 lbs [843 kg]
Drive
2WD/4WD
From the same series:
Introduction
John Deere 670 Compact Utility Tractor
The John Deere 670 is a compact utility tractor manufactured by Yanmar in Japan, produced between 1989 and 1997. Designed for small-scale agricultural tasks, landscaping, and property maintenance, it belongs to the compact utility segment and offers a balance of maneuverability and operational versatility.
Engine and Performance
The tractor is powered by a Yanmar 3TNA72 liquid-cooled, 3-cylinder diesel engine. With a displacement of 0.9 liters, it delivers a net power output of 18.5 hp (13.8 kW) at a rated speed of 2850 RPM. The engine utilizes an indirect injection fuel system and is equipped with glow plugs for cold-start assistance.
Transmission and Drivetrain
The transmission features an unsynchronized gear system providing 8 forward and 2 reverse speeds across two ranges. Power is transferred via a 215mm dry disc clutch. The unit is available in either two-wheel drive or four-wheel drive configurations, featuring mechanical rear differential locks for enhanced traction in difficult ground conditions.
Hydraulics and PTO
The open-center hydraulic system operates at a pressure of 2050 psi. The main pump flow is 5.5 gpm, with an optional power steering circuit providing up to 9.8 gpm. The rear PTO operates at 540 RPM at 2600 engine RPM. Optional mid-mount PTO capabilities are also supported to accommodate a variety of mid-mounted implements.
Hitch and Dimensions
The rear of the tractor is equipped with a Category I three-point hitch, utilizing position control to manage implements. It offers a lift capacity of 790 lbs (358 kg) measured at 24 inches behind the lift point. The tractor maintains a compact footprint with a 142 cm wheelbase and a base weight ranging from 784 kg to 843 kg depending on the drivetrain configuration.
Conclusion
The John Deere 670 serves as a robust and reliable utility solution for users requiring a compact machine capable of handling varied light-duty agricultural and landscaping workloads. Its simple mechanical design and availability of both 2WD and 4WD versions make it a practical choice for small farm operations.
Videos
Production Information of John Deere, 670
- Built in Japan
- Compact Utility tractor
| Distributor | John Deere |
|---|---|
| Original price | $11,800 (1997 2WD ) |
| Manufacturer | Yanmar |
| Manufacturer(optional) | $13,550 (1997 4WD ) |
Dimension and Tires Information of John Deere, 670
| 2WD Front tread | 37.6 inches [95 cm] |
|---|---|
| Wheelbase | 56.1 inches [142 cm] |
| 4WD Weight | 1860 lbs [843 kg] |
| 2WD Weight | 1730 lbs [784 kg] |
| Length | 108.8 inches [276 cm] |
| 4WD Front tread | 36.9 inches [93 cm] |
| Clearance (drawbar) | 9.7 inches [24 cm] |
| Width | 42.6 inches [108 cm] |
| Rear tread | 33 to 40.3 inches [83 to 102 cm] |
Minimum width.
| 2WD Standard tires (ag) | Front: 5.00-12. Rear: 9.5-16 |
|---|---|
| Lawn/turf rear | 31x15.5-15 |
| 4WD Standard tires (ag) | Front: 6-12. Rear: 9.5-16 |
| Lawn/turf front | 23x8.50-12 |
Engine Specifications of John Deere, 670
- Yanmar 3TNA72
- Liquid-cooled
- 3-cylinder
- Diesel
| Coolant capacity | 4 qts [3.8 L] |
|---|---|
| Oil capacity | 2.7 qts [2.6 L] |
| Power (gross) | 19.3 hp [14.4 kW] |
| Pre-heating | Glow plugs |
| Air cleaner | Dry element |
| Displacement | 53.6 ci [0.9 L] |
| Power (net) | 18.5 hp [13.8 kW] |
| Fuel system | Indirect injection |
| Bore/Stroke | 2.83x2.83 inches [72 x 72 mm] |
| Starter volts | 12 |
| Rated RPM | 2850 |
| Compression | 22.3:1 |
Transmission Information of John Deere, 670
Transmission variants 1
- Four gears, plus reverse, in two ranges.
| Type | Unsynchronized gear |
|---|---|
| Oil capacity | 16 qts [15.1 L] |
| Gears | 8 forward and 2 reverse |
| Clutch | 215mm dry disc |
Mechanical Specs of John Deere, 670
- Two-post ROPS.
- Two- or four-wheel drive
- Dry shoe brakes
| Steering(optional) | Power |
|---|---|
| Steering | Manual |
| Final drives | Spur gear |
| Differential lock | Mechanical rear |
Power Information of John Deere, 670
| Engine RPM | 2100@2600 |
|---|---|
| Rear PTO | Transmission |
| Mid PTO(optional) | Live |
| Engine RPM | 540@2600 |
| Engine RPM(optional) | Live |
| Mid PTO Type | 2100 |
| Rear PTO Type | 540 |
Hydraulics Specifications of John Deere, 670
| Total flow | 5.5 gpm (manual steering) [20.8 lpm] |
|---|---|
| Type | Open center |
| Mid valves(optional) | 2 |
| Rear valves(optional) | 2 |
| Capacity | 4 gal [15.1 L] |
| Capacity(optional) | 9.8 gpm (power steering) [37.1 lpm] |
| Pump flow | 5.5 gpm [20.8 lpm] |
| Pressure | 2050 psi [141.3 bar] |
| Steering flow | 4.3 gpm [16.3 lpm] |
Three-Point Hitch of John Deere, 670
| Rear Type | I |
|---|---|
| Control | Position control |
| Rear lift (at 24"/610mm) | 790 lbs [358 kg] |
Electrical System of John Deere, 670
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Battery CCA | 420 |
| Charging system | Alternator |
| Charging amps | 20 |
Where it sits
With 19 HP, the John Deere 670 sits between 650 (17 HP) and 4100 (20 HP) in John Deere's range. Its power puts it in the 10th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the John Deere 670 have?
The John Deere 670 delivers 19 HP.
What years was the John Deere 670 produced?
The John Deere 670 was produced in 1989-1997.
What engine does the John Deere 670 have?
The John Deere 670 is powered by a Diesel, 3-cylinder engine.
What transmission does the John Deere 670 use?
The John Deere 670 uses a Unsynchronized gear transmission.
How much does the John Deere 670 weigh?
The John Deere 670 weighs 1860 lbs [843 kg].
Is the John Deere 670 4WD?
The John Deere 670 is available in 2WD/4WD.