RK Tractors RK55H

Last Updated: June 2024

Overview

The RK55H is a compact utility tractor manufactured by RK Tractors, which is in fact branded equipment produced by TYM. Designed for a variety of tasks, this tractor features a Yanmar 4TNV86T-CR engine providing a gross power output of 55.1 hp with a turbocharged diesel design and an engine displacement of 127.6 cubic inches. The 4WD capability is ensured through a 4x4 MFWD chassis, and operator comfort is provided via power steering. Its hydrostatic transmission permits an infinite range of speeds both forwards and in reverse, across three ranges, offering flexibility during operation. Standard tire fitment for agricultural work is 9.5x16 for the front and 14.9x24 for the rear, and alternative tire sizes are available for lawn, turf, or industrial purposes. With dimensions measuring 141.3 inches in length, 63.8 inches in width, and 102.1 inches in height when equipped with the ROPS, the RK55H strikes a balance between robust capability and compact utility.
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Key Specifications

Category: Utility

Power Output: 55.1

Transmission: Hydrostatic

Drive Type: 4WD

Operating Weight: 3814

Fuel Type: Diesel

RK Tractors RK55H vs. Similar Tractors

Power Output
Average
Greater than 54% of similar tractors.
Operating Weight
Average
Greater than 34% of similar tractors.

Technical Specifications

Engine

Manufacturer
Yanmar
Model
4TNV86T-CR
Cooling Type
Liquid-cooled
Cylinder Orientation
-
Valve Configuration
-
Fuel Type
Diesel
Induction Type
Turbocharged
Cylinders
4
Displacement (ci)
127.6
Bore (in)
3.39
Stroke (in)
3.54
Rated RPM
2800
Power Output (hp)
55.1

Transmission

Type
Hydrostatic
Forward Gears
Infinite (3-range)
Reverse Gears
Infinite (3-range)
Total Gears
-

Dimensions

Length (in)
141.3
Width (in)
63.8
Height (in)
102.1 (with ROPS)
Operating Weight (lb)
3814

Power Take-Off (PTO)

PTO Type
-
PTO Speed 1 (rpm)
-
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4x4 MFWD 4WD
Drive Type
4WD
Steering Type
Power
Coolant Capacity (qts)
-
Front Tire Diameter (in)
-
Front Tire Width (in)
-
Rear Tire Diameter (in)
-
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
Ag: Front: 9.5x16. Rear: 14.9x24 | Lawn/turf: Front: 12x16.5. Rear: 16.9x24 | Industrial: Front: 12x16.5. Rear: 16.9x24
Manufacture - End Year
-
Hitch Type
-
Hitch Category
I
Hitch Position
-
Hitch Capacity (lb)
-
Operator Station Type
-
Starter Type
Electric
Brake Type
-
Hydraulic System Type
-