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Tractor · 1977Unverified

M-R-S A-85

Name: M-R-S A-85
Brand: M-R-S

M-R-S A-85 — Four-wheel Drive (4WD) tractor · 202 hp. Reference specifications; pending source verification.

The M-R-S A-85 is a tractor model with a rating of approximately 202 hp, placing it at the more powerful end of its class. It was in production from 1977 to 1980. The tractor features a 6-cylinder diesel liquid-cooled engine, combined with four-wheel drive and a 20-speed gearbox. Its listed operating weight is 7847 kg, making it suitable for operations on areas ranging from 600 to 1,500 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

202 hp

Weight

7847 kg

Catalogue coverage

Variants represented

Richest spec table

32 rows

Recorded power

202 hp

Recorded weight

7847 kg

Transmissions

20-speed

Production years

1977-1980

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerM-R-SReference

Four-wheel Drive (4WD) tractorReference

Built in Flora, Mississippi, USAReference

Drive4x4 4WDReference

Power four-wheel steeringReference

Engine

Detroit Diesel 5.2L 6-cyl dieselReference

Engine150.6 kWReference

Drawbar (claimed)122.3 kWReference

Detroit Diesel 6V-53NReference

dieselReference

6-cylinderReference

liquid-cooledReference

Displacement5.2 LReference

Bore/Stroke98 x 114 mmReference

Power150.6 kWReference

Rated RPM2500Reference

Starter typeelectricReference

Transmission

20-speedReference

Gears20 forward and 4 reverseReference

PTO & Hydraulics

Pump flow75.7 lpmReference

Dimensions

Wheelbase299 cmReference

Weight7847 kgReference

Front tire23.1x26Reference

Rear tire23.1x26Reference

Ag front23.1x26Reference

Ag rear23.1x26Reference

Length495 cmReference

Width281 cmReference

Height (cab)335 cmReference

Ground clearance35 cmReference

Front tread203 cmReference

Rear tread203 cmReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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