John Deere 3640 Overview
The John Deere 3640 was produced from 1984 to 1987 with a 5.9 L engine rated at 117 hp and a Power Synchron partial power-shift transmission. The transmission provides 16 forward and 8 reverse gears for its documented drivetrain layout.
The independent rear PTO provides 540/1000 speeds. A Category II/III rear hitch uses lower-link draft sensing, and the tractor combines a 102-inch wheelbase with a listed operating weight of 12,929 lb.
Quick Answers
- What engine does it have?The 5.9 L engine is rated at 117 hp and uses direct injection.
- What transmission does it use?Power Synchron is a partial power-shift transmission with 16 forward and 8 reverse gears.
- What PTO does it have?It has an independent rear PTO with 540/1000 speeds.
- What is the fuel capacity?Fuel capacity is listed as 49.2 gal (186.2 L).
Engine and Power
The 3640 uses a 5.9 L engine rated at 117 hp, with direct injection and a rated speed of 2,400 rpm.
Diesel engine
| Displacement | 359 ci 5.9 L |
|---|---|
| Fuel System | direct injection |
| Rated Rpm | 2400 |
Manufacturer
Manufacture years
Transmission
The Power Synchron transmission is a partial power-shift design with 16 forward and 8 reverse gears.
Power Synchron
| Name | Power Synchron |
|---|---|
| Type | partial power shift |
| Gears | 16 forward and 8 reverse |
PTO and Hitch
An independent rear PTO provides 540/1000 speeds.
Rear PTO
Rear PTO type
Rear hitch
Hydraulics
The closed-center constant-pressure hydraulic system is listed with 11.9 gpm pump flow, 2,466 psi pressure, and 11.1 gal capacity.
Type
Capacity
Pressure
Pump flow
Accuracy Note
Tractor specifications can vary by year, region, factory configuration, installed equipment, and later repairs. Match serial range, engine, transmission, PTO setup, and model code before ordering parts or doing service work.