Belarus MTZ-521
The Belarus MTZ-521 is a tractor produced by Belarus. It is equipped with a 289.8 ci 4.7 L engine. The listed engine power is Engine Detail — 289.8 ci / 4.7 L (listed): 67 hp / 50.0 kW. Transmission: 9 forward and 2 reverse. Operating weight: 7,695 lbs 3490 kg.
Engine Power
Engine Detail — 289.8 ci / 4.7 L (listed): 67 hp / 50.0 kW
Transmission
9 forward and 2 reverse
Operating Weight
7,695 lbs
3490 kg
Overview
 | 1973 - 1977 |
|---|
Production | |
|---|---|
Manufacturer | Belarus |
Variants | |
|---|---|
MTZ-501 | 2WD |
Belarus MTZ-521 Engine | |
|---|---|
4.7L 4-cyl | |
Engine details ...  |
Belarus MTZ-521 Transmission | |
|---|---|
9-speed | |
Transmission details ...  |
Belarus MTZ-521 Power | |
|---|---|
Engine | 67 hp
50.0 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Steering | power assist |
Disc brakes | |
standard | |
Hydraulics | |
|---|---|
Total flow | 13.2 gpm
50.0 lpm |
Tractor hitch | |
|---|---|
Rear lift | 4,410 lbs
2000 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540/ground |
Dimensions & Tires | |
|---|---|
Wheelbase | 96.5 inches
245 cm |
Weight | 7,695 lbs
3490 kg |
Front tire | 8.30-20 |
Rear tire | 13.6-38 |
Full dimensions and tires ...  | |
Engine
Engine Detail — 289.8 ci / 4.7 L
Manufacturer | D60 |
Configuration | 4-cylinder |
Displacement | 289.8 ci
4.7 L |
Bore/Stroke | 4.331x4.921 inches
110 x 125 mm |
Power | 67 hp
50.0 kW |
Rated RPM | 1800 |
Torque | 193.3 lb-ft
262.1 Nm |
Torque RPM | 1100 |
Transmission
Transmission — 9 forward and 2 reverse
Gears | 9 forward and 2 reverse |
Dimensions
Belarus MTZ-521 Tires | |
|---|---|
Ag front | 8.30-20 |
Ag rear | 13.6-38 |
Dimensions | |
|---|---|
Wheelbase | 96.5 inches
245 cm |
Length | 151.6 inches
385 cm |
Height | 101.6 inches
258 cm |
Weight | 7,695 lbs
3490 kg |
Recommended Implements & Sizing Guide
Engineering recommendations for Belarus MTZ-521 based on its 67 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 3 to 4 Bottom (16")3 - 4 铧 (40 cm) | Heavy Duty | Suitable for medium loam and stubble turnover. |
Rotary Cutter / MowerMowing & Clearing | 7 to 8 ft (84-96 in)2.1 - 2.4 m | Heavy Duty | Heavy-duty twin spindle cutter for overgrown acreage. |
Rotary TillerSeedbed Prep | 78 to 84 in200 - 215 cm | Heavy Duty | Heavy commercial tiller with multi-speed gearbox. |
Disc HarrowSecondary Tillage | 7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙 | Medium Duty | Field leveling and clod breaking behind plows. |
Hay BalerHay & Forage | 4x4 to 4x5 Round Baler1.2x1.5 m 紧凑圆捆机 | Heavy Duty | Silage and dry hay; 540 RPM PTO with slip-clutch. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Belarus MTZ-521.
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Belarus MTZ-521 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Belarus MTZ-521.
Converted Equivalents:
Horsepower (HP)67 hp
Kilowatts (kW)50 kW
Metric Horsepower (PS / CV)67.9 PS
Direct Competitor Comparison
Compare Belarus MTZ-521 against same-era industry alternatives in the same horsepower class.
Current Model
Belarus
Belarus MTZ-521
Engine Power:Engine Detail — 289.8 ci / 4.7 L (listed): 67 hp / 50.0 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 460
Engine Power:61
Production Years:1958 - 1963
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