Utility tractorsSpec sheet
RK Tractors RK55H
The RK55H is a utility tractor made by RK Tractors, which is a brand produced by TYM. This 4WD tractor is built for versatility and power on the farm. It has a Yanmar diesel engine with 4 cylinders and 55.1 horsepower, which is about average for tractors in its class. The engine is turbocharged and liquid-cooled, helping it run smoothly in various conditions. One standout feature of the RK55H is its hydrostatic transmission. This gives the driver infinite speed options in both forward and reverse, with 3 ranges to choose from. The tractor measures 141.3 inches long, 63.8 inches wide, and 102.1 inches tall. It weighs 3,814 pounds, which is on the lighter side for utility tractors. The RK55H comes with power steering for easy handling and a Category I hitch for attaching implements. It also includes a ROPS (Roll-Over Protective Structure) for safety.
ManufacturerRK TractorsPower55.1 hp(41.1 kW)Class40–60 HP tractors →Engine4-cylinderTransmissionHydrostatic
Key specifications
- Category
- Utility
- Engine power
- 55hp
- Operating weight
- 3,814 lb
- Transmission
- Hydrostatic
Category comparison
RK55H compared with its category
vs. Utility medianDistribution
Engine Power (hp)
All recorded Utility tractors
55.1 hp · 50th
This model
9
Median 55 hp
177
This modelUtility tractorsMediann = 5,383
The RK55H ranks at the 50th percentile for engine power among recorded utility tractors.
Overview
About the RK Tractors RK55H
The RK55H is a utility tractor made by RK Tractors, which is a brand produced by TYM. This 4WD tractor is built for versatility and power on the farm. It has a Yanmar diesel engine with 4 cylinders and 55.1 horsepower, which is about average for tractors in its class. The engine is turbocharged and liquid-cooled, helping it run smoothly in various conditions. One standout feature of the RK55H is its hydrostatic transmission. This gives the driver infinite speed options in both forward and reverse, with 3 ranges to choose from. The tractor measures 141.3 inches long, 63.8 inches wide, and 102.1 inches tall. It weighs 3,814 pounds, which is on the lighter side for utility tractors. The RK55H comes with power steering for easy handling and a Category I hitch for attaching implements. It also includes a ROPS (Roll-Over Protective Structure) for safety.
Full specifications
Recorded specifications
General
| Manufacturer | RK Tractors |
|---|---|
| Model | RK55H |
| Category | Utility tractor |
| Type | 4x4 MFWD 4WD |
| Operating weight | 3,814lb(1,730 kg) |
Engine
| Make | Yanmar |
|---|---|
| Model | 4TNV86T-CR |
| Power | 55.1hp(41.09 kW) |
| Cylinders | 4 |
| Displacement | 127.6ci(2.09 L) |
| Bore | 3.39in(86.11 mm) |
| Stroke | 3.54in(89.92 mm) |
Transmission
| Type | Hydrostatic |
|---|
Chassis & drive
| Chassis | 4x4 MFWD 4WD |
|---|---|
| Drive | 4WD |
| Steering | Power |
Dimensions
| Length | 141.3in(3,589 mm) |
|---|---|
| Width | 63.8in(1,621 mm) |
| Height | 102.1in(2,593 mm) |
| Operating weight | 3,814lb(1,730 kg) |
Closest alternatives
RK55H compared with the nearest models by horsepower
By engine horsepower, the nearest utility models to the RK55H are the RK Tractors RK55HC and the RK Tractors RK55S. The RK Tractors RK55HC matches it on rated power and weighs 420 lb more, at 77 lb per horsepower against 69 lb. The RK Tractors RK55S matches it on rated power at almost the same operating weight. Of the 3 models, the RK55H has the lowest weight per horsepower at 69 lb per hp.
| Spec | RK Tractors RK55H | RK Tractors RK55HC | RK Tractors RK55S |
|---|---|---|---|
| Engine power | 55.1 hp41.1 kW | 55.1 hp41.1 kW | 55.1 hp41.1 kW |
| Operating weight | 3,814 lb1,730 kg | 4,233 lb1,920 kg | 3,814 lb1,730 kg |
| Weight per hp | 69 lb/hp42 kg/kW | 77 lb/hp47 kg/kW | 69 lb/hp42 kg/kW |
| Displacement | 127.6 ci2.09 L | 127.6 ci2.09 L | 127.6 ci2.09 L |
| Cylinders | 4 | 4 | 4 |
| Transmission | Hydrostatic | Hydrostatic | Mechanical shuttle |
| Drive | 4WD | 4WD | 4WD |
Calculators
Calculators for the RK55H
PTO power
About 46 to 50 PTO hp
Estimated from the 55.1 hp engine rating. The calculator also estimates drawbar power by surface.
Implement sizing
Implements a 55.1 hp tractor can run
Maximum size is about a 6.5 ft rotary cutter or a 5.5 ft tiller. The calculator also sizes discs, plows and balers.
Ballast
80 lb per PTO hp as listed
Heavy draft work calls for 120 to 135 lb/hp. The calculator gives the ballast to add.
Units
55.1 hp is 41.1 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Category medians
RK55H vs. Utility median
RK Tractors RK55H compared with other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 55.1 hp | 55 hp | 0% | 50th |
| Engine Displacement | 128 ci | 183 ci | -30% | 30th |
| Cylinders | 4 | 4 | at median | 50th |
| Operating Weight | 3,814 lb | 5,303 lb | -28% | 34th |
| Length | 141 in | 137 in | +3% | 57th |
| Width | 63.8 in | 66 in | -3% | 44th |
| Height | 102 in | 94.1 in | +9% | 71st |
Medians and percentiles are calculated from the utility tractors in the database that have a recorded value for each specification (sample size 3,933–5,720 models).
Same manufacturer
Other RK Tractors models
Other manufacturers
Models with similar horsepower
Gallery
RK Tractors RK55H photos
FAQ
Frequently asked questions
What is the engine power output of the RK Tractors RK55H?
Rated engine output for the RK Tractors RK55H is 55.1 hp, delivered by a 4-cylinder engine. The engine displaces 127.6 ci.
Which transmission does the RK Tractors RK55H use?
The RK Tractors RK55H is equipped with a Hydrostatic transmission.
What three-point hitch category does the RK Tractors RK55H use?
The RK Tractors RK55H has a Category I three-point hitch.
What is the operating weight of the RK Tractors RK55H?
The RK Tractors RK55H has an operating weight of about 3,814 lb.
How do I maintain a RK Tractors RK55H?
Routine service for the RK Tractors RK55H covers engine oil and filter changes, hydraulic and coolant level checks, air filter cleaning, and scheduled inspections. Refer to the manufacturer's maintenance schedule for exact intervals.