M-R-S A-90B Technical specs


Make M-R-S
Model A-90B
Company country United states
Production years From 1964  Until 1970
Tractor type Four wheel Drive (4WD) tractor
Fuel diesel
Price -
Total build -
Service repair manual M-R-S A-90B Manual
AG front tires 18.4x26
AG rear tires 18.4x26
Weight 21400 lbs or 9707 kg
Length -
Width -
Height 114 inches [289 cm]
Wheelbase 100 inches [254 cm]
Ground clearance -
Rear tread size 81 inches
Front tread size 75 inches
Engine size 464 ci or 7.6 L
Number of cylinders 6 cylinders
Horsepower -
Power RPM 2200 (rpm)
Engine torque -
Engine torque RPM -
Fuel type diesel
Fuel tank capacity -
Bore stroke 4.44x5.00 inches or (113 x 127 mm)
Number of batteries -
Battery voltage -
Electric ground force -
Engine starter volts -
Parts And Accessories M-R-S A-90B Parts
Transmission type -
Transmission gears 10 forward and 2 reverse
Wheel drive 4x4 4WD
Steering system power four-wheel
Braking system -
Cabin type Open operator station
PTO claimed power -
PTO clutch system -
Rear PTO system -
Front PTO system -
PTO fuel consumption -
Hitch control system -
Rear hitch -
Rear hitch lift -



Detailed review of M-R-S A-90B

M-R-S produced its A-90B farm tractor model From 1964  Until 1970 in United states with a Open operator station cabin.
Talking dimensions and weight, this model weighs 21400 lbs or 9707 kg has and 114 inches [289 cm] of height while maintaining a wheelbase of 100 inches [254 cm] the front tread is about 75 inches while the rear tread is 81 inches .
This tractor can fit ag tires of 18.4x26 front and 18.4x26 back .
This M-R-S A-90B is powerd by a diesel engine it has 464 ci or 7.6 L 6 cylinders.
This machine has 4x4 4WD wheel drive system,10 forward and 2 reverse transmission system.

- M-R-S provided us with the latest version of its A-90B service repair manual
- Find All mechanical and electrical parts and accessories of M-R-S A-90B farm-tractor here