Muir-Hill 121

Production: 1972 - 1983  

Production
Manufacturer:	Muir-Hill
Type:	Four-wheel Drive (4WD) tractor
Factory:	Manchester, England

Muir-Hill 121 Power
Engine:	120 hp 89.5 kW
PTO (claimed):	70 hp 52.2 kW

Mechanical
Chassis:	4x4 4WD
Final drives:	planetary
Steering:	power
Brakes:	hydraulic wet disc
Cab:	Cab standard.
Transmission:	8-speed gear

Hydraulics
Type:	open center
Pressure:	2600 psi 179.3 bar
Pump flow:	11 gpm 41.6 lpm

Tractor hitch
Rear Type:	II
Control:	position and draft control

Power Take-off (PTO)
Rear PTO:	independent
Clutch:	hydraulic wet disc
Rear RPM:	540 (1.375)
1000 (1.375)
Engine RPM:	540@1750

Electrical
Charging system:	alternator
Battery volts:	12
Battery AH:	128

Engine Detail
Ford 2715E
diesel
6-cylinder
liquid-cooled
Displacement:	380 ci 6.2 L
Bore/Stroke:	4.22x4.524 inches 107 x 115 mm
Power:	120 hp 89.5 kW
Fuel system:	direct injection
Compression:	16:1
Rated RPM:	2500
Torque:	280 lb-ft 379.7 Nm
Torque RPM:	1600
Starter:	electric
Starter volts:	12

Transmission
Type:	gear
Gears:	8 forward and 2 reverse
Clutch:	355.6mm dry disc

Dimensions
Wheelbase:	75 inches 190 cm
Length:	156 inches 396 cm
Width:	82 inches 208 cm
Weight:	10700 lbs 4853 kg
Front tread:	64 to 80 inches 162 to 203 cm
Rear tread:	64 to 80 inches 162 to 203 cm