UtilityPerformance profile
RK Tractors RK37S
The RK37S is a utility tractor made by RK Tractors. It has a 4x4 MFWD chassis and power steering, making it easy to handle in various conditions. The tractor uses a Syncro Shuttle transmission with 12 forward and 12 reverse gears, giving drivers plenty of options for different tasks. Under the hood, the RK37S has a Yanmar 3TNV88-CR engine. This diesel engine is liquid-cooled and uses common rail direct injection. It has 3 cylinders and puts out 37.4 hp at 3000 rpm, which is average for its class. The engine has a very high rated rpm compared to other tractors. The tractor weighs 3065 lb and has a Category I hitch, suitable for light to medium-duty work. It also has good ground clearance at 12.8 inches, helping it navigate rough terrain.
ManufacturerRK TractorsPower37.4 hpEngine3-cylTransSyncro Shuttle
Image not recorded
Quick specs
- Category
- Utility
- Engine Power Output
- 37hp
- Operating Weight
- 3,065 lb
- Transmission
- Syncro Shuttle
At a glance
How the RK37S compares
vs. Utility medianDistribution
Engine Power (hp)
Across all Utility tractors
37.4 hp · 31st
This model
9
Median 55 hp
177
This modelUtility tractorsMediann = 5,383
The RK37S ranks at the 31st percentile for engine power among recorded utility tractors.
Overview
About the RK Tractors RK37S
The RK37S is a utility tractor made by RK Tractors. It has a 4x4 MFWD chassis and power steering, making it easy to handle in various conditions. The tractor uses a Syncro Shuttle transmission with 12 forward and 12 reverse gears, giving drivers plenty of options for different tasks. Under the hood, the RK37S has a Yanmar 3TNV88-CR engine. This diesel engine is liquid-cooled and uses common rail direct injection. It has 3 cylinders and puts out 37.4 hp at 3000 rpm, which is average for its class. The engine has a very high rated rpm compared to other tractors. The tractor weighs 3065 lb and has a Category I hitch, suitable for light to medium-duty work. It also has good ground clearance at 12.8 inches, helping it navigate rough terrain.
Full specifications
Every recorded spec
General
| Manufacturer | RK Tractors |
|---|---|
| Model | RK37S |
| Category | Utility tractor |
| Type | 4x4 MFWD 4WD |
| Operating weight | 3,065lb |
Engine
| Make | Yanmar |
|---|---|
| Model | 3TNV88-CR |
| Power | 37.4hp |
| Cylinders | 3 |
| Displacement | 100.2ci |
| Bore | 3.39in |
| Stroke | 3.54in |
Transmission
| Type | Syncro Shuttle |
|---|---|
| Forward gears | 12 |
| Reverse gears | 12 |
Chassis & drive
| Chassis | 4x4 MFWD 4WD |
|---|---|
| Drive | MFWD/4WD |
| Steering | Power |
Dimensions
| Length | 126in |
|---|---|
| Width | 53.5in |
| Height | 94.5in |
| Operating weight | 3,065lb |
Head to head
RK37S vs. Utility median
How the RK Tractors RK37S compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 37.4 hp | 55 hp | -32% | 31st |
| Engine Displacement | 100 ci | 183 ci | -45% | 22nd |
| Cylinders | 3 | 4 | -25% | 23rd |
| Forward Gears | 12 | 12 | at median | 50th |
| Operating Weight | 3,065 lb | 5,303 lb | -42% | 24th |
| Length | 126 in | 137 in | -8% | 36th |
| Width | 53.5 in | 66 in | -19% | 23rd |
| Height | 94.5 in | 94.1 in | 0% | 51st |
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 RK37 | 37.4 hp | 3,064 lb | 2017+ | Compare → |
| RK Tractors RK37H | 37.4 hp | 3,106 lb | — | Compare → |
| RK Tractors RK37HC | 37.4 hp | 3,450 lb | — | Compare → |
| RK Tractors RK37SC | 37.4 hp | 3,417 lb | — | Compare → |
| RK Tractors RK24H | 24 hp | 1,610 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Allis Chalmers D15 | 37.44 hp | 4,036 lb | — | Compare → |
| Avery 20-35 | 37.33 hp | 7,550 lb | 1923+ | Compare → |
| Allis Chalmers D14 | 37 hp | 3,500 lb | 1957–1960 | Compare → |
| Antonio Carraro Tigre 4000F | 38 hp | 2,756 lb | — | Compare → |
| Antonio Carraro TTR 4400 | 38 hp | 2,811 lb | — | Compare → |
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FAQ
Common questions
How much horsepower does the RK Tractors RK37S have?
The RK Tractors RK37S produces 37.4 hp from its 3-cylinder engine. Engine displacement is 100.2 ci.
How much does the RK Tractors RK37S weigh?
The RK Tractors RK37S weighs about 3,065 lb in operating condition.
What transmission is in the RK Tractors RK37S?
Transmission on the RK Tractors RK37S is Syncro Shuttle, with 12 forward speeds.
What hitch category is the RK Tractors RK37S?
The RK Tractors RK37S uses a Category I hitch.
What maintenance does the RK Tractors RK37S require?
Like any tractor, the RK Tractors RK37S 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.