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Nuffield 4/65

Nuffield 4/65 tractor
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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.
Nuffield 4/65tractorfarm tractorspecificationsenginetransmissiondimensionspowerPTONuffield tractors
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

Related Models

Nuffield 3/45

Model:3/45

Nuffield 10/60

Model:10/60