Yanmar YM1820 – Compact Utility Tractor Overview
Manufacturer: Yanmar
Production Years: 1982 – 1983
Series: YM20 Series
Category: Compact Utility Tractor
The Yanmar YM1820 is a power-shift compact utility tractor developed as the successor to the YM1810. With a larger 1.3-liter 3-cylinder diesel engine, partial power-shift transmission, and optional creeper gears, the YM1820 delivers smooth operation, strong torque, and excellent durability—making it a reliable choice for farming and utility work in export markets worldwide.
Overview
| Item | Details |
|---|---|
| Model | Yanmar YM1820 |
| Series | YM20 Series |
| Tractor Type | Compact Utility Tractor |
| Production | 1982 – 1983 |
| Operator Station | Open platform |
| Drive Options | 2WD / 4WD |
| Manufacturing Origin | Japan |
Series map:
YM1720 → YM1820 → YM2020
(Previous generation: YM1810, 1980–1981)
Engine
| Item | Specification |
|---|---|
| Engine Manufacturer | Yanmar |
| Engine Type | Diesel |
| Cylinders | 3-cylinder |
| Displacement | 1.3 L |
| Cooling System | Liquid-cooled |
| Fuel System | Indirect injection |
| Rated Output | 18 hp (13.4 kW) |
The 1.3-liter Yanmar diesel engine provides increased torque and smoother power delivery compared with smaller YM20 models, ideal for heavier implements and sustained operation.
Power
| Item | Value |
|---|---|
| Engine Power | 18 hp |
| Engine Power (kW) | 13.4 kW |
Transmission
| Item | Specification |
|---|---|
| Transmission Options | 9-speed partial power shift / 12-speed creeper |
| Drive Configuration | 2WD / 4WD |
| Clutch | Dry single plate |
| Final Drive | Gear |
The partial power-shift transmission allows smoother gear changes, while the optional creeper gearbox enables extremely low working speeds for precision tasks such as tilling and planting.
Variants
| Model | Drive | Transmission |
|---|---|---|
| YM1802 | 2WD | Gear |
| YM1802D | 4WD | Gear |
| YM1820 | 2WD | Power shift |
| YM1820D | 4WD | Power shift |
Dimensions & Weight
| Item | Specification |
|---|---|
| Operating Weight | 2,314 lbs (1,049 kg) |
| Tractor Class | Compact Utility |
(Full dimensions and tire specifications vary by configuration and market.)
Electrical System
| Item | Specification |
|---|---|
| Ground | Negative |
| Battery Voltage | 12 V |
Applications
-
Medium-duty farming and cultivation
-
Rotary tilling and soil preparation
-
Orchard and plantation work
-
Grass cutting and mowing
-
PTO-driven implements and utility hauling
Photos
-
Yanmar YM1820 / YM1820D tractor (right-side view)
-
Exterior and chassis details
-
Operator station and drivetrain
(Actual photos vary by unit condition and export specification.)
Why the Yanmar YM1820 Is Popular for Export
-
Powerful and reliable 1.3L Yanmar diesel engine
-
Partial power-shift transmission for smooth operation
-
Optional creeper gears for precision work
-
Compact size with increased working capacity
-
Simple mechanical design for easy maintenance
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