Yanmar
Yanmar YM187
The Yanmar YM187 is a compact utility tractor produced from 1986 to 1989 by Yanmar. It features an 18 hp liquid-cooled 3-cylinder diesel engine with a 0.9 L displacement. The tractor offers two- or four-wheel drive options and a three-speed power shift transmission with 9 forward and 3 reverse gears. It has a manual steering with optional power assist, mechanical drum brakes, and a two-post fixed ROPS. The YM187 supports a rear PTO with 540/1000 rpm and a rear hitch with position control lifting 1036 lbs. Dimensions include a 57.6 inch wheelbase, 106.5 inch length, and weights ranging from 1523 to 1658 lbs depending on drive type. Attachments available include a 60" mid-mount mower deck, front-end loader, and backhoe, making it versatile for various farm tasks.
Power-
Founded-
ModelYM187
Technical Specifications
Detailed specifications and technical data for Yanmar YM187
Power
| Engine power | 18 hp (13.4 kW) |
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Tires
| Lawn/turf rear | 31x15.5-15 |
|---|---|
| Lawn/turf front | 20x8.00-10 |
| 2WD Standard tires (ag) | Front: 6.50-10. Rear: 12.4-16 |
| 4WD Standard tires (ag) | Front: 6-12. Rear: 12.4-16 |
Engine
| Type | diesel, 3-cylinder, liquid-cooled |
|---|---|
| Model | Yanmar 3T72HA-N |
| Power | 18 hp (13.4 kW) |
| Starter | electric |
| Fuel tank | 5.3 gal (20.1 L) |
| Rated RPM | 2600 |
| Bore/Stroke | 2.83x2.91 inches (72 x 74 mm) |
| Compression | 23:1 |
| Displacement | 53.6 ci (0.9 L) |
| Firing order | 1-3-2 |
| Oil capacity | 3.4 qts (3.2 L) |
| Starter volts | 12 |
| Coolant capacity | 4.4 qts (4.2 L) |
Height
| ROPS | 84.9 inches (215 cm) |
|---|---|
| 2WD Steering wheel | 52.4 inches (133 cm) |
| 4WD Steering wheel | 52.8 inches (134 cm) |
Dimensions
| Width | 50 inches (127 cm) |
|---|---|
| Length | 106.5 inches (270 cm) |
| Wheelbase | 57.6 inches (146 cm) |
| 2WD Weight | 1523 lbs (690 kg) |
| 4WD Weight | 1658 lbs (752 kg) |
| Rear tread | 37.6 to 41.5 inches (95 to 105 cm) |
| 2WD Front tread | 32.7 inches (83 cm) |
| 4WD Front tread | 34.3 inches (87 cm) |
| 2WD Clearance (drawbar) | 12.6 inches (32 cm) |
| 4WD Clearance (drawbar) | 10.8 inches (27 cm) |
Electrical
| Ground | negative |
|---|---|
| Battery volts | 12 |
Mechanical
| ROPS | Two-post fixed ROPS |
|---|---|
| Drive | Two- or four-wheel drive |
| Brakes | Mechanical drum brakes |
| Steering | manual, power optional |
Production
| Category | Compact Utility tractor |
|---|---|
| Variants | YM187 2WD, YM187D 4WD |
| Manufacturer | Yanmar |
| Years produced | 1986 - 1989 |
References
| Notes | 18 and 22 hp Compact Utility Tractors published in 1988, by Yanmar. Publication contains known errors. |
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Attachments
| Backhoe | Yanmar YBH670 Backhoe, Bucket width 10 inches (25 cm), 12 inches (30 cm), 16 inches (40 cm), 24 inches (60 cm), Digging depth 79 inches (200 cm), Loading height 52 inches (132 cm), Swing Arc 180°, Bucket force 2600 lbs (1179 kg), Dipperstick force 1618 lbs (733 kg) |
|---|---|
| Front-end loader | YFL-675 Loader, 675 lbs lift (full at pin) (306 kg), 1400 lbs breakout (635 kg), 50° dump, 26 inches reach (dumped) (66 cm), 52 inches reach (ground) (132 cm), 20° rollback, 76.5 inches height (at pin) (194 cm), 58 inches clearance (dumped) (147 cm), boom cyl: 1.75 inches (4 cm), bucket cyl: 1.5 inches (3 cm), Bucket width: 48 inches (121 cm) and 60 inches (152 cm) |
| 60" mid-mount mower deck | mid-mount Yanmar YCM60A, 3-blade, Cutting width 60 inches (152 cm), Cut height 2 to 4 inch (5 to 10 cm) |
Transmission
| Type | three-speed power shift |
|---|---|
| Gears | 9 forward and 3 reverse |
| Clutch | dry disc |
| Details | Three gears (1-3) plus reverse (R) in three ranges. Dashboard-mounted gear shifter. |
Tractor hitch
| Control | position control |
|---|---|
| Rear Type | I |
| Rear lift (at ends) | 1036 lbs (469 kg) |
Power Take-off (PTO)
| Rear PTO Type | 540/1000 (1.375) |
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