Kubota L3902DT vs Rural King RK37S

Every published spec for both machines, side by side. The verdict below is computed straight from the spec sheets, not opinion.

Across 5 measurable specs, the Rural King RK37S leads 4 categories to 1. Machine pages: Kubota L3902DT and Rural King RK37S.

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Category Verdict

Spec	Kubota L3902DT	Rural King RK37S
Engine HP (hp)	▲ 37.5 hp	37 hp
PTO HP (hp)	30.3 hp	n/a
Weight (lb)	2,767 lb	▲ 3,065 lb
Loader Lift (lb)	1,144.4 lb	n/a
3-Pt Lift (24 in) (lb)	1,435 lb	▲ 1,764 lb
Lift Height (in)	94.8 in	n/a
Hydraulic Flow (gpm)	10.1 gpm	▲ 10.9 gpm
Travel Speed (mph)	13.2 mph	▲ 21.8 mph

The headline numbers at a glance.

Kubota L3902DTRural King RK37S

Engine HPhp

▲37.5 hp

37 hp

PTO HPhp

30.3 hp

n/a

Weightlb

2,767 lb

▲3,065 lb

Loader Liftlb

1,144.4 lb

n/a

3-Pt Lift (24 in)lb

1,435 lb

▲1,764 lb

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Full Spec Sheet

Every published spec, side by side, including the details the graphs above don't chart.

Spec	KubotaL3902DT	Rural KingRK37S


Engine Manufacturer	Kubota	Yanmar
Engine Model	D1803-CR-E5	3TNV88C-DKTF
Engine Type	Direct injection, vertical, water-cooled 4-cycle, diesel	Natural Aspiration
No. of Cylinders	3	3
Displacement	111.4 in³	100.2 in³
Rated Engine Speed	2700 rpm	3000 rpm
Engine Power (Gross)	37.5 hp	37 hp
PTO Power	30.3 hp	Not Published
Engine Emissions Constraints	Not Published	Tier 4
Cooling System Type	Water-cooled	Not Published
Air Cleaner	Dry type, single element	Dual Dry
Fuel System	Direct injection	CRDI
Alternator	45 A, 12 V	70 A, 12 V

Pump Type	Not Published	Dual Gear Pump
Implement Flow	6.3 gpm	6.3 gpm
Steering Flow	3.8 gpm	4.6 gpm
Total Hydraulic Flow	10.1 gpm (6.3 + 3.8, computed)	10.9 gpm
Overall Hydraulic Pump Flow	10.1 gpm (6.3 + 3.8, computed)	6.4 gpm
Hydraulic System Type	Open center	Not Published
Rear Remote Hydraulic Flow	Not Published	Not Published
No. of Standard Remote Valves	Not Published	1
No. of Optional Remote Valves	Not Published	1

Fuel Tank Capacity	11.1 gal	9.0 gal
Coolant Capacity	6.3 qt	7.4 qt
Crankcase Capacity	7.1 qt	6.0 qt
Transmission / Hydraulic System Capacity	7.5 gal	9.25 gal
Front Axle Fluid Capacity	4.8 qt	8.7 qt

PTO Type	Live-continuous running	Independent
PTO Rear	540 rpm	540 rpm
Mid-PTO Availability	Not Published	Not Published
Category, 3-Point Hitch	SAE Category I	Category I
Hitch Lift Capacity	1998 lb	2,646 lb
Hitch Lift Capacity (at 24”)	1435 lb	1,764 lb
Lift Control Type	Position control	Position

Transmission Type	Gear shift with synchronized shuttle	Synchromesh + Constant mesh
No. of Speeds	8 forward, 8 reverse	Infinite / 3-Range
Max Travel Speed (Forward)	13.2 mph	21.8 mph
Max Travel Speed (Reverse)	13.2 mph	Not Published
Clutch	Dry type dual stage	Single plate dry clutch (8.86 in diameter); hydraulic clutch assembly for Independent PTO models
Differential Lock & Limited Slip Options	Rear differential lock, pedal operated	4WD, Differential Lock

Frame Type	Not Published	Not Published
Steering	Integral type power steering	Hydrostatic
Brakes	Mechanical, wet disc type	Wet Disc
Seat Suspension & Adjustability	Suspension seat with fore/aft travel adjustment and suspension tension adjustment	Not Published
Front Axle Type	Cast-iron front axle	Not Published
Front Axle Rating	Not Published	Not Published
Drawbar Capacity	730 lb	Not Published

Overall Length with 3-Point Hitch	108.5 in (without 3-point hitch)	126 in
Overall Width	55.1 in	53.5 in
Wheelbase	63.4 in	66.1 in
Ground Clearance	13.4 in	12.8 in
Min. Turn Radius without Brakes	8.2 ft (with brake applied)	116 in
Height to Top of ROPS	91.7 in	94.4 in
Height to Top of ROPS (folded)	Not Published	Not Published
Height to Top of Cab Model	Not Published	Not Published

Tractor Weight (Base)	2767 lb	3,065 lb
Weight with ROPS and Loader	Not Published	Not Published
Weight with Cab and Loader	Not Published	Not Published

Tire Size & Options	R1 Agricultural; R3 Turf; R4 Industrial	Not Published
R1 Agricultural - Front	7.2-16	8.0-16
R1 Agricultural - Rear	11.2-24	12.4-24
R3 Turf - Front	25X8.50-14	27x10.5-15
R3 Turf - Rear	13.6-16	41x14-20
R4 Industrial - Front	27X8.50-15	27x10.5-15
R4 Industrial - Rear	15-19.5	12.5x20

Quick Attach Loader System	Front Loader (LA526 - 2 Lever Quick Coupler (OPT))	Not Published
Loader Model	LA526	L102
Loader Lift Height	94.8 in	Not Published
Loader Lift Capacity (Full Height)	1144.4 lb	Not Published
Loader Breakout Force	Not Published	Not Published

Warranty Length & Coverage	Non-Commercial Home & Residential Use - Basic Standard Limited: 24 months or 1500 hours; Limited Powertrain: 72 months or 2000 hours. Commercial Use - Basic Standard Limited: 24 months or 1500 hours; Limited Powertrain: 36 months or 2000 hours.	Engine and power transmission devices: 36 months or 2000 hours; other parts: 24 months or 1500 hours (Tractor Non-Rental & Non-Commercial use)

Accessories that fit	Kubota L2502/L3302/L3902 HD Brush Guard Insert $269.00	TYM T394 Rural King RK37 Brush Screen Insert $249.99

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