Brand siblingUtilityPerformance profile
RK Tractors RK55S
The RK55S is a utility tractor made by RK Tractors. It has a strong 4-wheel drive system and power steering, making it easy to handle in tough conditions. The tractor uses a 16-speed mechanical shuttle transmission, giving drivers lots of options for different tasks. Under the hood, the RK55S has a Yanmar diesel engine with 4 cylinders. It's turbocharged and liquid-cooled, which helps it run smoothly. The engine puts out 55.1 hp, which is about average for tractors like this. It has a high engine speed of 2800 rpm, making it one of the faster-revving tractors in its class. The tractor weighs 3814 lb and has agricultural tires for good traction in fields. It comes with a category I hitch for attaching tools and a ROPS to keep the driver safe.
ManufacturerRK TractorsPower55.1 hpEngine4-cylTransMechanical shuttle
Quick specs
- Category
- Utility
- Engine Power Output
- 55hp
- Operating Weight
- 3,814 lb
- Transmission
- Mechanical shuttle
At a glance
How the RK55S compares
vs. Utility medianDistribution
Engine Power (hp)
Across all Utility tractors
55.1 hp · 50th
This model
9
Median 55 hp
177
This modelUtility tractorsMediann = 5,383
The RK55S ranks at the 50th percentile for engine power among recorded utility tractors.
Overview
About the RK Tractors RK55S
The RK55S is a utility tractor made by RK Tractors. It has a strong 4-wheel drive system and power steering, making it easy to handle in tough conditions. The tractor uses a 16-speed mechanical shuttle transmission, giving drivers lots of options for different tasks. Under the hood, the RK55S has a Yanmar diesel engine with 4 cylinders. It's turbocharged and liquid-cooled, which helps it run smoothly. The engine puts out 55.1 hp, which is about average for tractors like this. It has a high engine speed of 2800 rpm, making it one of the faster-revving tractors in its class. The tractor weighs 3814 lb and has agricultural tires for good traction in fields. It comes with a category I hitch for attaching tools and a ROPS to keep the driver safe.
Full specifications
Every recorded spec
General
| Manufacturer | RK Tractors |
|---|---|
| Model | RK55S |
| Category | Utility tractor |
| Type | 4x4 MFWD 4WD |
| Operating weight | 3,814lb |
Engine
| Make | Yanmar |
|---|---|
| Model | 4TNV86T-CR |
| Power | 55.1hp |
| Cylinders | 4 |
| Displacement | 127.6ci |
| Bore | 3.39in |
| Stroke | 3.54in |
Transmission
| Type | Mechanical shuttle |
|---|---|
| Forward gears | 16 |
| Reverse gears | 16 |
Chassis & drive
| Chassis | 4x4 MFWD 4WD |
|---|---|
| Drive | 4WD |
| Steering | Power |
| Cab | ROPS |
Dimensions
| Length | 141.3in |
|---|---|
| Width | 63.8in |
| Height | 102.1in |
| Operating weight | 3,814lb |
Head to head
RK55S vs. Utility median
How the RK Tractors RK55S compares to 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 |
| Forward Gears | 16 | 12 | +33% | 73rd |
| 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 computed from the utility tractors in our database with a recorded value for each spec (sample sizes 3,933–5,720 models).
Compare to tractors with similar specs
Commonly compared RK Tractors tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| RK Tractors RK55H | 55.1 hp | 3,814 lb | — | Compare → |
| RK Tractors RK55HC | 55.1 hp | 4,233 lb | — | Compare → |
| RK Tractors RK55 | 55 hp | — | 2017+ | Compare → |
| RK Tractors RK37 | 37.4 hp | 3,064 lb | 2017+ | Compare → |
| RK Tractors RK37H | 37.4 hp | 3,106 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Apollo 554 | 55 hp | 6,239 lb | — | Compare → |
| Ascot Universal 550 | 55 hp | 4,600 lb | — | Compare → |
| Barreiros 5000 | 55 hp | 5,030 lb | — | Compare → |
| Barreiros 5000 VL | 55 hp | 4,080 lb | — | Compare → |
| Belarus 405 | 55 hp | 7,056 lb | — | Compare → |
Explore
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Gallery
RK Tractors RK55S photos
FAQ
Common questions
How much horsepower does the RK Tractors RK55S have?
The RK Tractors RK55S produces 55.1 hp from its 4-cylinder engine. Engine displacement is 127.6 ci.
How much does the RK Tractors RK55S weigh?
The RK Tractors RK55S weighs about 3,814 lb in operating condition.
What transmission is in the RK Tractors RK55S?
Transmission on the RK Tractors RK55S is Mechanical shuttle, with 16 forward speeds.
What hitch category is the RK Tractors RK55S?
The RK Tractors RK55S uses a Category I hitch.
What maintenance does the RK Tractors RK55S require?
Like any tractor, the RK Tractors RK55S needs periodic engine oil and filter changes, hydraulic fluid checks, and regular greasing and inspection. The owner's manual lists the manufacturer's recommended service intervals.