Montana R3644
The Montana R3644 is a tractor produced by Montana. It is equipped with a 107.3 ci 1.8 L engine. The listed engine power is Diesel (listed): 38.5 hp / 28.7 kW. Transmission: sliding gear, synch shuttle. Operating weight: 2712 lbs 1230 kg.
Engine Power
Diesel (listed): 38.5 hp / 28.7 kW
Fuel & Capacities
8.5 gal
32.2 L
Transmission
sliding gear, synch shuttle
Operating Weight
2712 lbs
1230 kg
Overview
 | 2007 - 2010
R SeriesCompact Utility tractorLS built
R Series
Compact Utility tractor
LS built |
|---|
Production | |
|---|---|
Distributor | Montana |
Manufacturer | LS |
Compact Utility tractor | |
Montana R3644 Engine | |
|---|---|
Mitsubishi 1.8L 4-cyl diesel | |
Fuel tank | 8.5 gal
32.2 L |
Engine details ...  | |
Montana R3644 Power | |
|---|---|
Engine | 38.5 hp
28.7 kW |
Gear PTO (claimed) | 31 hp
23.1 kW |
Hydro PTO (claimed) | 29 hp
21.6 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Power steering | |
Wet disc brakes | |
Two-post ROPS. |
Hydraulics | |
|---|---|
Pressure | 2417 psi
166.7 bar |
Valves | 2 |
Pump flow | 8.1 gpm
30.7 lpm |
Steering flow | 3.592 gpm
13.6 lpm |
Steering press. | 1706 psi
117.6 bar |
Tractor hitch | |
|---|---|
Rear Type | I |
Rear lift (at ends) | 2619 lbs
1187 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540 |
Mid PTO | optional |
Dimensions & Tires | |
|---|---|
Weight | 2712 lbs
1230 kg |
Front tire | 7-16,4PR (7-14) |
Rear tire | 12.4-24,8PR (11.2-24) |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 50 |
Battery volts | 12 |
Engine
Engine Detail — 107.3 ci / 1.8 L Diesel
Manufacturer | Mitsubishi S4L2 |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 107.3 ci
1.8 L |
Bore/Stroke | 3.07x3.622 inches
78 x 92 mm |
Power | 38.5 hp
28.7 kW |
Fuel system | indirect injection |
Air cleaner | dry dual element |
Rated RPM | 2700 |
Starter volts | 12 |
Transmission
Transmission options | |
|---|---|
12-speed | |
hydrostatic |
Transmission — sliding gear, synch shuttle
Transmission | sliding gear, synch shuttle |
Gears | 12 forward and reverse |
Transmission — infinite forward and reverse (3-range) hydrostatic
Type | hydrostatic |
Gears | infinite forward and reverse (3-range) |
Dimensions
Montana R3644 Tires | |
|---|---|
Ag front | 7-16,4PR (7-14) |
Ag rear | 12.4-24,8PR (11.2-24) |
Dimensions | |
|---|---|
Length | 117 inches
297 cm |
Height | 91 inches
231 cm |
Weight | 2712 lbs
1230 kg |
Ground clearance | 13 inches
33 cm |
Recommended Implements & Sizing Guide
Engineering recommendations for Montana R3644 based on its 38.5 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 | 5 ft (60 in)1.5 m | Medium Duty | Pasture maintenance and weeds up to 1.5" diameter. |
Rotary TillerSeedbed Prep | 54 to 60 in135 - 150 cm | Medium Duty | Thorough seedbed preparation in orchards and vegetable plots. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
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 Montana R3644.
Estimated Continuous Field Runtime: 4.2 hrs
Approximately 4.2 hours of continuous field operation at ~75% rated power on a full tank (8.5 gal / 32.2 L).
Estimated 75% Load Fuel Burn~2 gal/hr (7.6 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
Montana R3644 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Montana R3644.
Converted Equivalents:
Horsepower (HP)38.5 hp
Kilowatts (kW)28.7 kW
Metric Horsepower (PS / CV)39 PS
Direct Competitor Comparison
Compare Montana R3644 against same-era industry alternatives in the same horsepower class.
Current Model
Montana
Montana R3644
Engine Power:Diesel (listed): 38.5 hp / 28.7 kW
★ Baseline Reference
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