LS KR50
The LS KR50 is a tractor produced by Ls. It is equipped with a 152.9 ci 2.5 L engine. The listed engine power is Diesel (listed): 47 hp / 35.0 kW. Transmission: EZ-shift. Operating weight: 3759 lbs 1705 kg.
Engine Power
Diesel (listed): 47 hp / 35.0 kW
Fuel & Capacities
12.4 gal
46.9 L
Transmission
EZ-shift
Operating Weight
3759 lbs
1705 kg
Overview
 | KR SeriesCompact Utility tractor |
|---|---|
KR Series | |
Compact Utility tractor | |
Production | |
|---|---|
Manufacturer | LS |
Compact Utility tractor | |
LS KR50 Engine | |
|---|---|
LS 2.5L 4-cyl diesel | |
Fuel tank | 12.4 gal
46.9 L |
Engine details ...  | |
LS KR50 Power | |
|---|---|
Engine | 47 hp
35.0 kW |
PTO (claimed) | 37.1 hp
27.7 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Steering | hydrostatic power |
ROPS. | |
Hydraulics | |
|---|---|
Rear valves | 3 |
Pump flow | 7.8 gpm
29.5 lpm |
Total flow | 11.7 gpm
44.3 lpm |
Steering flow | 3.9 gpm
14.8 lpm |
Tractor hitch | |
|---|---|
Rear Type | I |
Control | position and draft control |
Rear lift | 2756 lbs
1250 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540/750/1000 |
Dimensions & Tires | |
|---|---|
Wheelbase | 69.2 inches
175 cm |
Weight | 3759 lbs
1705 kg |
Front tire | 9.5-16 |
Rear tire | 13.6-24 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
Engine
Engine Detail — 152.9 ci / 2.5 L Diesel
Manufacturer | LS S4QL |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 152.9 ci
2.5 L |
Bore/Stroke | 3.46x4.06 inches
88 x 103 mm |
Emissions | Tier 3 |
Power | 47 hp
35.0 kW |
Fuel system | indirect injection |
Air cleaner | dry |
Rated RPM | 2600 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission options | |
|---|---|
32-speed synchronized shuttle | |
32-speed power shuttle |
Transmission — 32 forward and 16 reverse synchronized shuttle
Type | synchronized shuttle |
Gears | 32 forward and 16 reverse |
 | |
Transmission — EZ-shift
Transmission | EZ-shift |
Type | power shuttle |
Gears | 32 forward and 16 reverse |
 | |
Dimensions
LS KR50 Tires | |
|---|---|
Ag front | 9.5-16 |
Ag rear | 13.6-24 |
Dimensions | |
|---|---|
Wheelbase | 69.2 inches
175 cm |
Length | 125.7 inches
319 cm |
Width | 62.2 inches
157 cm |
Height (ROPS) | 94.9 inches
241 cm |
Weight | 3759 lbs
1705 kg |
Photos
LS KR50 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Ls KR50 based on its 47 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
Rotary Cutter / MowerMowing & Clearing | 6 ft (72 in)1.8 m | Medium Duty | Medium pasture clearing; rear slip-clutch recommended. |
Rotary TillerSeedbed Prep | 66 to 72 in165 - 180 cm | Medium Duty | Standard utility tiller; slip clutch protection required. |
Disc HarrowSecondary Tillage | 7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙 | Medium Duty | Field leveling and clod breaking behind plows. |
Hay BalerHay & Forage | Small Square Baler (14x18")小方捆打捆机 (36x46 cm) | Medium Duty | Classic 2-string baler for horse and small livestock hay. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Ls KR50.
Estimated Continuous Field Runtime: 5.1 hrs
Approximately 5.1 hours of continuous field operation at ~75% rated power on a full tank (12.4 gal / 46.9 L).
Estimated 75% Load Fuel Burn~2.4 gal/hr (9.3 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Ls KR50 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Ls KR50.
Converted Equivalents:
Horsepower (HP)47 hp
Kilowatts (kW)35 kW
Metric Horsepower (PS / CV)47.7 PS
Direct Competitor Comparison
Compare LS KR50 against same-era industry alternatives in the same horsepower class.
Current Model
Ls
LS KR50
Engine Power:Diesel (listed): 47 hp / 35.0 kW
★ Baseline Reference