Bolinder-Munktell BM-21 VS Caterpillar R4 specs comparison

Bolinder-Munktell BM-21

General Infos

Make	Bolinder-Munktell
Model	BM-21
Country	Sweden
Production	From 1951  Until 1952
Price	-
Tractor type	Standard tread tractor
Fuel	diesel
Service repair manual	Bolinder-Munktell BM-21 Manual

Dimensions, sizes and tires

AG front tires	7.50x18
AG rear tires	13x30
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	5897 lbs or 2674 kg
Length	128 inches [325 cm]
Width	71.7 inches [182 cm]
Height	-
Wheelbase	80.9 inches [205 cm]
Ground clearance	-
Turning radius	-
Rear tread size	57.1 inches
Front tread size	52.4 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	323.4 ci or 5.3 L
Cylinders	2 cylinders
Engine power	43 hp or 32.1 kW
Engine RPM	1050 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	19.8 gal or 74.9 L
Oil capacity	11.1 qts or 10.5 L
Oil change	-
Starter motor	electric
Starter volts	24 V
Parts And Accessories	Bolinder-Munktell BM-21 Parts

Electrical and battery specs

Batteries number	4
Batteries voltage	6 V
Battries Amps	-
Cold Amps	-
Ground force	-
Charging system	generator
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	-
Trans type	gear
Trans gears	5 forward and 1 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	manual
Braking system	-
Cabin type	Open operator station
Differentiel lock	-

Hydraulics specifications

System	-
Valves	-
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	-
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	-
Real power	-
Engine @RPM	-
PTO Clutch	-
Rear PTO	-
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	-
Rear hitch	-
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

Caterpillar R4

General Infos

Make	Caterpillar
Model	R4
Country	United states
Production	From 1938  Until 1944
Price	-
Tractor type	Agricultural Crawler tractor
Fuel	gasoline
Service repair manual	Caterpillar R4 Manual

Dimensions, sizes and tires

AG front tires	44-inch tracks
AG rear tires	44-inch tracks
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	-
Length	-
Width	-
Height	-
Wheelbase	-
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	461 ci or 7.6 L
Cylinders	4 cylinders
Engine power	-
Engine RPM	1400 (rpm)
Torque	-
Torque RPM	-
Fuel type	gasoline
Fuel injection	-
Fuel tank size	-
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	-
Parts And Accessories	Caterpillar R4 Parts

Electrical and battery specs

Batteries number	-
Batteries voltage	-
Battries Amps	-
Cold Amps	-
Ground force	-
Charging system	-
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	-
Trans type	gear
Trans gears	5 forward and 1 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	crawler
Final drive	-
Steering	-
Braking system	-
Cabin type	Open operator station
Differentiel lock	-

Hydraulics specifications

System	-
Valves	-
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	30.88 hp or 23.0 kW
Fuel consumption	-
Pulling power	6120 lbs or 2776 kg

Power take-off (PTO) specs

Claimed power	-
Real power	-
Engine @RPM	-
PTO Clutch	-
Rear PTO	-
Rear PTO RPM	-
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	-
Rear hitch	-
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

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