Utility tractorsSpec sheet
Yanmar SX3100
The Yanmar Sx3100 is a compact utility tractor built for versatility and efficiency. It features a 4x4 MFWD chassis with four-wheel drive, making it great for tough jobs on farms and fields. The tractor is powered by a Yanmar diesel engine with three cylinders and direct injection. This engine produces 31.2 hp at 2500 rpm, which is average power for its size. The engine's displacement is 100.2 ci, which is below average compared to similar tractors. This tractor has a hydrostatic transmission with infinite forward and reverse gears in two ranges. This allows for smooth speed changes without shifting. The Sx3100 has hydraulic power steering for easy maneuvering and a Category 1 hitch for attaching various implements. It's relatively lightweight at 2030 lb, making it nimble and easy to transport. The tractor measures 109 inches long and 51.6 inches wide, with a good ground clearance of 10.6 inches. Additional features include an open center hydraulic system, electric starter, and a dual dry air cleaner for better engine protection.
ManufacturerYanmarPower31.2 hp(23.3 kW)Class25–40 HP tractors →Engine3-cylinderTransmissionHydrostatic
Image not recorded
Key specifications
- Category
- Utility
- Engine power
- 31hp
- Operating weight
- 2,030 lb
- Transmission
- Hydrostatic
Category comparison
SX3100 compared with its category
vs. Utility medianDistribution
Engine Power (hp)
All recorded Utility tractors
31.2 hp · 24th
This model
9
Median 55 hp
177
This modelUtility tractorsMediann = 5,383
The SX3100 ranks at the 24th percentile for engine power among recorded utility tractors.
Overview
About the Yanmar SX3100
The Yanmar Sx3100 is a compact utility tractor built for versatility and efficiency. It features a 4x4 MFWD chassis with four-wheel drive, making it great for tough jobs on farms and fields. The tractor is powered by a Yanmar diesel engine with three cylinders and direct injection. This engine produces 31.2 hp at 2500 rpm, which is average power for its size. The engine's displacement is 100.2 ci, which is below average compared to similar tractors. This tractor has a hydrostatic transmission with infinite forward and reverse gears in two ranges. This allows for smooth speed changes without shifting. The Sx3100 has hydraulic power steering for easy maneuvering and a Category 1 hitch for attaching various implements. It's relatively lightweight at 2030 lb, making it nimble and easy to transport. The tractor measures 109 inches long and 51.6 inches wide, with a good ground clearance of 10.6 inches. Additional features include an open center hydraulic system, electric starter, and a dual dry air cleaner for better engine protection.
Full specifications
Recorded specifications
General
| Manufacturer | Yanmar |
|---|---|
| Model | SX3100 |
| Category | Utility tractor |
| Type | 4x4 MFWD 4WD |
| Operating weight | 2,030lb(920.8 kg) |
Engine
| Make | Yanmar |
|---|---|
| Power | 31.2hp(23.27 kW) |
| Cylinders | 3 |
| Displacement | 100.2ci(1.64 L) |
| Bore | 3.47in(88.01 mm) |
| Stroke | 3.54in(89.99 mm) |
Transmission
| Type | Hydrostatic |
|---|
Chassis & drive
| Chassis | 4x4 MFWD 4WD |
|---|---|
| Drive | 4WD |
| Steering | Hydraulic power |
Hydraulics
| Type | Open Center |
|---|
Dimensions
| Length | 109in(2,769 mm) |
|---|---|
| Width | 51.6in(1,311 mm) |
| Operating weight | 2,030lb(920.8 kg) |
Capacities
| Cooling system | 0.53gal(2.01 L) |
|---|
Closest alternatives
SX3100 compared with the nearest models by horsepower
Among utility tractors, the John Deere 4310 and the Cub Cadet Sx3100 are closest to the Yanmar SX3100 in rated horsepower. The John Deere 4310 matches it on rated power and weighs 870 lb more, at 93 lb per horsepower against 65 lb. The Cub Cadet Sx3100 matches it on rated power at almost the same operating weight. Of the 3 models, the SX3100 has the lowest weight per horsepower at 65 lb per hp.
| Spec | Yanmar SX3100 | John Deere 4310 | Cub Cadet Sx3100 |
|---|---|---|---|
| Engine power | 31.2 hp23.3 kW | 31.2 hp23.3 kW | 31.2 hp23.3 kW |
| Operating weight | 2,030 lb921 kg | 2,900 lb1,315 kg | 2,030 lb921 kg |
| Weight per hp | 65 lb/hp40 kg/kW | 93 lb/hp57 kg/kW | 65 lb/hp40 kg/kW |
| Displacement | 100.2 ci1.64 L | 91.3 ci1.5 L | 100.2 ci1.64 L |
| Cylinders | 3 | 3 | 3 |
| Transmission | Hydrostatic | Hydrostatic | Hydrostatic |
| Drive | 4WD | 4WD | 4WD |
Calculators
Calculators for the SX3100
PTO power
About 26 to 28 PTO hp
Estimated from the 31.2 hp engine rating. The calculator also estimates drawbar power by surface.
Implement sizing
Implements a 31.2 hp tractor can run
The calculator sizes mowers, tillers, discs, plows and balers for this tractor.
Ballast
76 lb per PTO hp as listed
Heavy draft work calls for 120 to 135 lb/hp. The calculator gives the ballast to add.
Units
31.2 hp is 23.3 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Parts and manuals
Parts and manuals for the Yanmar SX3100
Each link opens a retailer search keyed to the fields recorded for this model. Confirm fitment against the serial plate before ordering.
Filters
- Oil filter for the YanmarAmazon
Fits the Yanmar 3-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
- Air filter for the YanmarAmazon
Fits the Yanmar 3-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
- Fuel filter for the YanmarAmazon
Fits the Yanmar 3-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
- Hydraulic filter for the YanmarAmazon
Fits the Yanmar 3-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
Manuals
- Yanmar SX3100 service and repair manualseManualOnline
Digital manuals. Check the serial number range on the listing.
- Yanmar SX3100 operator's manualAmazon
Printed and reprint manuals. Check the serial number range on the listing.
- Yanmar SX3100 service manualAmazon
Shop and repair manuals for this model.
Links in this section go to retailers. A purchase through them earns this site a commission at no extra cost to the buyer. As an Amazon Associate, Heavy Equipment Specs earns from qualifying purchases. Affiliate disclosure
Category medians
SX3100 vs. Utility median
Yanmar SX3100 compared with other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 31.2 hp | 55 hp | -43% | 24th |
| Engine Displacement | 100 ci | 183 ci | -45% | 22nd |
| Cylinders | 3 | 4 | -25% | 23rd |
| Operating Weight | 2,030 lb | 5,303 lb | -62% | 13th |
| Length | 109 in | 137 in | -20% | 15th |
| Width | 51.6 in | 66 in | -22% | 20th |
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 Yanmar models
Other manufacturers
Models with similar horsepower
FAQ
Frequently asked questions
How powerful is the Yanmar SX3100?
The Yanmar SX3100 has an engine power output of 31.2 hp. It is powered by a 3-cylinder engine displacing 100.2 ci.
What hydraulics does the Yanmar SX3100 have?
The Yanmar SX3100 uses an Open Center hydraulic system.
What is the working weight of the Yanmar SX3100?
The operating weight of the Yanmar SX3100 is approximately 2,030 lb.
What type of transmission does the Yanmar SX3100 have?
The Yanmar SX3100 uses a Hydrostatic transmission.
What routine service does the Yanmar SX3100 need?
Regular maintenance for the Yanmar SX3100 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.