Overview
The Yanmar SA425 is a 4WD compact utility tractor in production since 2022, featuring a 1.3L 3-cylinder liquid-cooled diesel engine. It is equipped with a 2-range hydrostatic transmission, independent rear and mid PTOs, and a Category I (Limited) three-point hitch with a 1209 lb lift capacity.
Ideal Applications
Powertrain and Engine Configuration:
The 3TNV80F engine delivers a gross power rating of 23.9 hp and 45.7 lb-ft of torque at a rated speed of 3200 RPM, paired with an infinite-gear 2-range hydrostatic transmission.
Hydraulic and Hitch Specifications:
This model utilizes an open center hydraulic system with a pump flow of 4.3 gpm and a steering flow of 3.7 gpm, supporting a rear lift capacity of 1209 lbs at 24 inches.
Dimensions and Chassis Equipment:
The chassis features a 63-inch wheelbase and 9.9-inch ground clearance, weighing 1830 lbs and including a two-post folding ROPS with available industrial or lawn/turf tire configurations.
Production
| Description | Compact Utility tractor |
|---|---|
| Manufacturer | Yanmar |
Engine
| Engine type | Yanmar 1.3L 3-cyl diesel |
|---|---|
| Fuel tank | 6.1 gal (23.1 L) |
| Bore/Stroke | 3.15x3.30 inches (80 x 84 mm) |
| Coolant capacity | 3.0 qts (2.8 L) |
| Description | Yanmar 3TNV80F / diesel / 3-cylinder / liquid-cooled inline |
| Displacement | 77.2 ci (1.3 L) |
| Oil capacity | 3.6 qts (3.4 L) |
| Power (gross) | 23.9 hp (17.8 kW) |
| Power (net) | 21.7 hp (16.2 kW) |
| Rated RPM | 3200 |
| Starter | electric |
| Starter volts | 12 |
| Torque | 45.7 lb-ft (62.0 Nm) |
| Engine (gross) | 23.9 hp (17.8 kW) |
| Engine (net) | 21.7 hp (16.2 kW) |
| PTO (claimed) | 18.1 hp (13.5 kW) |
Transmission
| Description | hydrostatic |
|---|---|
| Gears | infinite forward and reverse (2-range) |
| Oil capacity | 16.4 qts (15.5 L) |
| Type | hydrostatic |
Mechanical
| Description | Power steering / Wet disc brakes / Two-post folding ROPS. Four-post ROPS canopy available (425HDX). |
|---|---|
| Differential lock | mechanical rear |
| Drive type | Four-wheel drive |
Hydraulics
| Pressure | 2429 psi (167.5 bar) |
|---|---|
| Pump flow | 4.3 gpm (16.3 lpm) |
| Steering flow | 3.7 gpm (14.0 lpm) |
| Type | open center |
Hitch
| Control | position control |
|---|---|
| Rear lift (at 24"/610mm) | 1209 lbs (548 kg) |
| Rear Type | I (Limited) |
PTO
| Clutch | hydraulic |
|---|---|
| Engine RPM | 554@3200 / 2057@3200 |
| Mid PTO | independent |
| Mid PTO Type | 16/32 15T |
| Rear PTO | independent |
| Rear PTO Type | 540 (1.375) |
Electrical
| Battery CCA | 540 |
|---|---|
| Battery volts | 12 |
| Charging amps | 40 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Front tread | 37.8 inches (96 cm) |
|---|---|
| Ground clearance | 9.9 inches (25 cm) |
| Height (Folded ROPS) | 71.8 inches (182 cm) |
| Height (ROPS) | 87.2 inches (221 cm) |
| Height (steering wheel) | 56.7 inches (144 cm) |
| Length | 105.8 inches (268 cm) |
| Rear tread | 40.5 inches (102 cm) |
| Weight | 1830 lbs (830 kg) |
| Wheelbase | 63 inches (160 cm) |
| Width | 54.1 inches (137 cm) |
| Weight | 1830 lbs (830 kg) |
| Wheelbase | 63 inches (160 cm) |
| Industrial front | 23x8.50-12 |
| Industrial rear | 14-17.5 |
| Lawn/turf front | 23x8.50-12 |
| Lawn/turf rear | 36x14.00-15 |
References
| Description | SA223/325/425 published in 2022, by Yanmar / 425 Multi-Purpose Compact Tractor published in 2022, by Yanmar* / *Publication contains known errors. |
|---|
Yanmar SA425 attachments
| Description | 60" mid-mount mower deck / front-end loader / backhoe |
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