Nuffield
Nuffield 4/65
The Nuffield 4/65 is a farm tractor produced by Nuffield from 1967 to 1969 in Bathgate, Scotland. It features a BMC 3.8L 4-cylinder diesel engine producing 65 hp (48.5 kW) with a 10-speed gear transmission. The tractor has two-wheel drive with spur gear final drives and manual steering, with optional power steering. It includes mechanical disc brakes and an open operator station. The PTO is transmission-driven with an optional independent PTO, running at 540 RPM at 1800 engine RPM. Dimensions include a 79.9 inch (202 cm) wheelbase, 126.4 inch (321 cm) length, and an operating weight of 5140 lbs (2331 kg). Tires and tread sizes vary with agricultural options. The tractor hitch is type II/I with directional control and top-link draft sensing. Serial numbers range from 99001 in 1967 to 135000 final. Related models include the Nuffield 3/45 and 10/60.
Power65 hp
Founded1967 - 1969
Model4/65
Technical Specifications
Detailed specifications and technical data for Nuffield 4/65
Power
| Engine | 65 hp (48.5 kW) |
|---|---|
| PTO (claimed) | 54 hp (40.3 kW) |
Engine
| Power | 65 hp (48.5 kW) |
|---|---|
| Torque | 170 lb-ft (230.5 Nm) |
| Idle RPM | 630-2160 |
| Fuel tank | 19.2 gal (72.7 L) |
| Rated RPM | 2500 |
| Torque RPM | 1200 |
| Bore/Stroke | 3.937x4.724 inches (100 x 120 mm) |
| Compression | 16.5:1 |
| Displacement | 231 ci (3.8 L) |
| Firing order | 1-3-4-2 |
| Oil capacity | 9.5 qts (9.0 L) |
| Engine detail | BMC 3.8L 4-cyl diesel |
| Starter volts | 12 |
| Coolant capacity | 14.4 qts (13.6 L) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Mechanical disc brakes |
| Steering | manual |
| Final drives | spur gear |
| Operator station | Open operator station |
| Steering (optional) | power |
Production
| Built in | Bathgate, Scotland |
|---|---|
| Manufacturer | Nuffield |
| Years produced | 1967 - 1969 |
Transmission
| Type | gear |
|---|---|
| Gears | 10 forward and 2 reverse |
| Clutch | 280mm dry disc |
| Description | Five gears, plus reverse, in two ranges. |
| Oil capacity | 59.7 qts (56.5 L) |
Tractor hitch
| Control | directional control and top-link draft sensing |
|---|---|
| Rear Type | II/I |
Serial Numbers
| 1967 | 99001 |
|---|---|
| Final | 135000 |
| Serial number plate location | on the left side of the tractor frame |
Dimensions & Tires
| Width | 67.7 inches (171 cm) |
|---|---|
| Length | 126.4 inches (321 cm) |
| Rear tire | 11.00-36, 12.00-38, 14.00-30, 15.00-30 |
| Wheelbase | 79.9 inches (202 cm) |
| Front tire | 6.00-16, 7.50-16 |
| Rear tread | 52 to 80 inches (132 to 203 cm), 54 to 88 inches (137 to 223 cm) |
| Front tread | 52 to 76 inches (132 to 193 cm) |
| Height (hood) | 60.6 inches (153 cm) |
| Ground clearance | 23.1 inches (58 cm) |
| Height (exhaust) | 86.6 inches (219 cm) |
| Operating weight | 5140 lbs (2331 kg) |
| Clearance (drawbar) | 15.3 inches (38 cm) |
| Clearance (front axle) | 17.2 inches (43 cm) |
Power Take-off (PTO)
| Rear PTO | transmission |
|---|---|
| Engine RPM | 540@1800 |
| Rear PTO Type | 540 (1.375) |
| Rear PTO (optional) | independent |