Overview
The RK Tractors RK37S is a compact utility tractor manufactured by TYM and distributed by Rural King from 2017 to the present. This four-wheel drive model features a 37.4 hp Yanmar 1.6L 3-cylinder diesel engine paired with a 12-speed syncro shuttle transmission.
Ideal Applications
Transmission and Drive Configuration:
The tractor is equipped with a 12-speed syncro shuttle transmission providing 12 forward and 12 reverse gears and utilizes a four-wheel drive system.
Engine and PTO Performance:
The Yanmar 3TNV88-CR engine produces a gross 37.4 hp at a rated 3000 RPM, with a claimed independent rear PTO output of 30.2 hp operating at 540 RPM.
Hitch and Hydraulic Capacity:
The Category I rear hitch features position control and is rated for a lift capacity of 1764 lbs at 24 inches or 2646 lbs at the ends, supported by an 11 gpm total hydraulic flow.
Production
| Description | Compact Utility tractor / Original price was $16,999 in 2017 |
|---|---|
| Distributor | RK Tractors (a part of Rural King) |
| Manufacturer | TYM |
Engine
| Engine type | Yanmar 1.6L 3-cyl diesel |
|---|---|
| Fuel tank | 9 gal (34.1 L) |
| Bore/Stroke | 3.39x3.54 inches (86 x 90 mm) |
| Description | Yanmar 3TNV88-CR / diesel / 3-cylinder / liquid-cooled |
| Displacement | 100.2 ci (1.6 L) |
| Fuel system | common rail direct injection |
| Power (gross) | 37.4 hp (27.9 kW) |
| Rated RPM | 3000 |
| Starter | electric |
| Starter volts | 12 |
| Engine (gross) | 37.4 hp (27.9 kW) |
| PTO (claimed) | 30.2 hp (22.5 kW) |
Transmission
| Gears | 12 forward and reverse |
|---|---|
| Transmission type | 12-speed syncro shuttle |
| Type | syncro shuttle |
Mechanical
| Description | Power steering / Wet disc brakes / Two-post ROPS. |
|---|---|
| Drive type | Four-wheel drive |
Hydraulics
| Pump flow | 6.4 gpm (24.2 lpm) |
|---|---|
| Steering flow | 4.6 gpm (17.4 lpm) |
| Total flow | 11 gpm (41.6 lpm) |
| Valves | 1 |
Hitch
| Control | position control |
|---|---|
| Rear lift (at 24"/610mm) | 1764 lbs (800 kg) |
| Rear lift (at ends) | 2646 lbs (1200 kg) |
| Rear Type | I |
PTO
| Clutch | electro-hydraulic |
|---|---|
| Rear PTO | independent |
| Rear PTO Type | 540 (1.375) |
Electrical
| Battery volts | 12 |
|---|---|
| Charging amps | 55 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Ground clearance | 12.8 inches (32 cm) |
|---|---|
| Height (ROPS) | 94.5 inches (240 cm) |
| Length | 126 inches (320 cm) |
| Weight | 3065 lbs (1390 kg) |
| Wheelbase | 64.5 inches (163 cm) |
| Width | 53.5 inches (135 cm) |
| Front tire | 7-16 |
| Rear tire | 11.2x24 |
| Weight | 3065 lbs (1390 kg) |
| Wheelbase | 64.5 inches (163 cm) |
| Industrial front | 10-16.5 |
| Industrial rear | 43x16-20 |
| Lawn/turf front | 28x8.5-15 |
| Lawn/turf rear | 41x14-20 |
| Standard tires (ag) | Front: 7-16. Rear: 11.2x24 |
RK Tractors RK37S attachments
| Description | front-end loader / backhoe |
|---|
References
| Description | RK55 Shuttle Operator's Manual published in 2018 |
|---|
Variants
| RK37H | hydrostatic ROPS |
|---|---|
| RK37HC | hydrostatic cab |
| RK37S | shuttle ROPS |
| RK37SC | shuttle cab |