- Rigid chassis
- WhichTractor size: High-power
- No lab test on file
- 1978–1982
WhichTractor size, not the maker’s category
Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is
John Deere 4640 (A) specs: hp, weight, years
John Deere 6.466 TL six-cylinder diesel. The manufacturer claimed 175.4 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
175.4 hp
130.8 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “John Deere 4640”, claimed
This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.
- Weight
- 14,352 lb
- 3-point lift
- 7,326 lb
- Hyd. flow
- 33.3 gpm
- Top speed
- 18.6 mph
John Deere 4640 (A) specs: key facts
The John Deere 4640 (A) was built from 1978 to 1982.
The John Deere 4640 (A) has a claimed engine power (gross or net not stated) of 130.8 kW (175.4 hp); it has no measured PTO figure.
The John Deere 4640 (A) was offered in two-wheel-drive and four-wheel-drive versions.
The John Deere 4640 (A) has a John Deere 6.466 TL engine, a 6-cylinder 7.64 L diesel unit.
The John Deere 4640 (A) weighs 6,510 kg (14,352 lb) unladen.
The John Deere 4640 (A) has an independent rear PTO running at 1000 rpm.
The three-point hitch of the John Deere 4640 (A) lifts 3,323 kg (7,326 lb) at the lower-link ends.
The hydraulic pump of the John Deere 4640 (A) delivers 126 L/min (33.3 gpm).
Source · Traktorenlexikon, “John Deere 4640”
How does the 4640 (A) compare with its class?
- Limitation:
A three-point lift at the lower links of 3,323 kg is low for its class — 51% below the median of 6,787 kg across the 96 machines within 10% of its power that hold this figure.
- Strength:
A hydraulic pump flow of 126 L/min is high for its class — 33% above the median of 94.6 L/min across the 107 machines within 10% of its power that hold this figure.
- Limitation:
The power figure is a manufacturer claim, not a measurement. No laboratory test report exists for this machine. Of the 140 tractors within 10% of its power, 11% carry one.
Derived by WhichTractor from 140 comparable records. How we work this out
How much horsepower does a 4640 (A) have?
The only figure for the 4640 (A) is 175.4 hp (130.8 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “John Deere 4640”
What engine is in a 4640 (A)?
A 4640 (A) has a John Deere 6.466 TL, a 6-cylinder 7.64 L diesel engine.
| Make & model | John Deere 6.466 TL |
|---|---|
| Cylinders | 6, liquid-cooled |
| Displacement | 466.1 ci · 7.64 L |
| Max torque | 530 lb·ft · 718 N·m @ 1,400 rpm |
| Electrical system | 12 V |
Source · Traktorenlexikon, “John Deere 4640”
How much will a 4640 (A) lift, and what is its hydraulic flow?
A 4640 (A) lifts 7,326 lb (3,323 kg) at the lower-link ends.
| System | Closed centre |
|---|---|
| Pump flow | 33.3 gpm · 126 L/min |
| Pressure | 3,481 psi · 240 bar |
| Lift at ends | 7,326 lb · 3,323 kg |
| Rear PTO | Independent, engine-driven, 1000 rpm |
| PTO shaft | 1 3/8"- 21 spline |
Source · Traktorenlexikon, “John Deere 4640”
What transmission does a 4640 (A) have?
Transmission specifications for the 4640 (A) are below.
| Clutch | Hydraulically operated oil cooled double disc clutch |
|---|---|
| Brakes | Pedal operated hydraulic wet internal disc brake acting on differential layshaft |
| Steering | Hydrostatic steering consisting of gear pump control valve and steering motor |
| Top speed | 18.6 mph · 30 km/h |
Source · Traktorenlexikon, “John Deere 4640”
How much does a 4640 (A) weigh?
A 4640 (A) weighs 14,352 lb (6,510 kg) unladen.
| Unladen weight | 14,352 lb · 6,510 kg |
|---|---|
| Maximum permissible mass | 18,585 lb · 8,430 kg |
| Wheelbase | 118.5 in · 3,010 mm |
| Length | 171.3 in · 4,350 mm |
| Width | 95.7 in · 2,430 mm |
| Height | 116.5 in · 2,960 mm |
| Ground clearance | 14.6 in · 370 mm |
| Front track | 57.9–100.0 in · 1,470–2,540 mm |
| Rear track | 59.8–131.5 in · 1,520–3,340 mm |
| Turning radius, braked | 13.5 ft · 4.10 m |
Source · Traktorenlexikon, “John Deere 4640”
What oil does a 4640 (A) take, and how much?
A 4640 (A) engine takes 20.0 qt (18.9 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.
| System | Capacity |
|---|---|
| Engine oil | 20.0 qt · 18.9 LSource: Traktorenlexikon, “John Deere 4640” · single source, not independently verified |
| Transmission & hydraulic | 66.0 qt · 62.5 LSource: Traktorenlexikon, “John Deere 4640” · single source, not independently verified |
| Cooling system | 38.0 qt · 36.0 LSource: Traktorenlexikon, “John Deere 4640” · single source, not independently verified |
Always confirm against the operator’s manual for your machine before service.
Which tractors compare with a 4640 (A)?
Within 10% of its 175.4 hp of claimed engine power, the same type, and first built within 15 years of it.
- Ford TW-30 (A)174.6 hp engine, claimed · 1979–1983Side by side with the 4640 (A) →
- WHITE 4-175174.6 hp engine, claimed · 1979–1983Side by side with the 4640 (A) →
- Mercedes-Benz MB-trac 1800 intercooler177 hp engine, claimed · 1990–1991Side by side with the 4640 (A) →
- SOMECA 1880 (TD)177.6 hp engine, claimed · 1979–1983Side by side with the 4640 (A) →
- Case-IH Magnum 7120177.6 hp engine, claimed · 1988–1993Side by side with the 4640 (A) →
- Fiat 1880 (DT)177.7 hp engine, claimed · 1979–1984Side by side with the 4640 (A) →
Common questions about the John Deere 4640 (A)
Is a 4640 (A) two-wheel drive or four-wheel drive?
The John Deere 4640 (A) was offered in two-wheel-drive and four-wheel-drive versions.
What PTO does a 4640 (A) have?
A 4640 (A) has a independent 1000 rpm rear PTO on a 1 3/8"- 21 spline shaft.
Sources and how this page was built
Compiled from Traktorenlexikon, “John Deere 4640”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: John Deere 4640 — CC BY-SA 4.0, WIKIBOOKS-TL-105694 · revision 868544. Wikibooks contributors (Traktorenlexikon). Original document