Which has more horsepower, the LS Tractor MT122 or the Rural King RK21H?

They are effectively tied: both machines are rated at 21.5 hp hp for engine hp.

Which has more PTO horsepower, the LS Tractor MT122 or the Rural King RK21H?

The Rural King RK21H leads on pto hp at 15.4 hp hp, compared to 15 hp hp for the LS Tractor MT122.

Which is heavier, the LS Tractor MT122 or the Rural King RK21H?

The Rural King RK21H leads on weight at 1,942 lb lb, compared to 1,433 lb lb for the LS Tractor MT122.

Which has more loader lift capacity, the LS Tractor MT122 or the Rural King RK21H?

The LS Tractor MT122 leads on loader lift at 1,007 lb lb, compared to 617 lb lb for the Rural King RK21H.

Which has more three-point hitch lift capacity, the LS Tractor MT122 or the Rural King RK21H?

The LS Tractor MT122 leads on 3-pt lift (24 in) at 728 lb lb, compared to 679 lb lb for the Rural King RK21H.

LS Tractor MT122 vs Rural King RK21H

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

Across 8 measurable specs, this matchup is a dead heat: 3 categories to the LS Tractor MT122, 3 to the Rural King RK21H, 2 tied. Machine pages: LS Tractor MT122 and Rural King RK21H.

Want a third or fourth machine in the mix? Open this matchup in the comparison tool and add up to two more.

Category Verdict

Spec	LS Tractor MT122	Rural King RK21H
Engine HP (hp)	21.5 hp	21.5 hp
PTO HP (hp)	15 hp	▲ 15.4 hp
Weight (lb)	1,433 lb	▲ 1,942 lb
Loader Lift (lb)	▲ 1,007 lb	617 lb
3-Pt Lift (24 in) (lb)	▲ 728 lb	679 lb
Lift Height (in)	72 in	72 in
Breakout Force (lbf)	▲ 1,960 lbf	1,285 lbf
Hydraulic Flow (gpm)	6.7 gpm	▲ 7 gpm
Travel Speed (mph)	—	7.8 mph

The headline numbers at a glance.

LS Tractor MT122Rural King RK21H

Engine HPhp

▲21.5 hp

PTO HPhp

15 hp

▲15.4 hp

Weightlb

1,433 lb

▲1,942 lb

Loader Liftlb

▲1,007 lb

617 lb

3-Pt Lift (24 in)lb

▲728 lb

679 lb

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Full Spec Sheet

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

Spec	LS TractorMT122	Rural KingRK21H


PTO Power	15 hp	15.4 PTO HP
Alternator	40 A, 12 V	40 A, 12 V
Air Cleaner	Replaceable paper elements	Single Dry
Engine Type	3-cylinder, Indirect-injection, Water-cooled	Yanmar EPA Tier 4 certified 3-cylinder, liquid cooled diesel (natural aspiration)
Fuel System	Mechanical, in-line type	Indirect Fuel Injection
Displacement	68 in³	60.6 in³
No. of Cylinders	3	3
Rated Engine Speed	3000 rpm	3200 rpm
Cooling System Type	Water-cooled	Water-cooled
Engine Manufacturer	Yanmar	Yanmar
Engine Power (Gross)	21.5 hp	21.5 hp
Engine Emissions Constraints	Tier 4	Tier 4
Engine Model	—	3TNM74F

Tractor Weight (Base)	1,433 lbs	—
Weight with ROPS and Loader	Not Published	1,942 lb
Weight with Cab and Loader	Not Applicable	Not Applicable

Warranty Length & Coverage	6 Year Limited Warranty	Full-machine: 24 months/2,000 hours; Powertrain: 96 months/3,000 hours (whichever comes first)

Pump Type	Gear	Single Gear Pump with Flow Divider
Steering Flow	2.1 gpm	2.11 gpm
Implement Flow	4.6 gpm	4.17 gpm
Total Hydraulic Flow	6.7 gpm	6.97 gpm
Hydraulic System Type	Open center system, Position control	Live, independent
System Operating Pressure	1,885.5 psi	—
Rear Remote Hydraulic Flow	Not Published	Not Published
Overall Hydraulic Pump Flow	6.7 gpm	6.97 gpm
No. of Optional Remote Valves	1	Not Published
No. of Standard Remote Valves	0	Not Published

PTO Rear	Standard (540 rpm)	540 rpm
PTO Type	Independent	Independent
Lift Control Type	Position	Position
Hitch Lift Capacity	970 lbs. (At 24 in: 728)	1,100 lb
Mid-PTO Availability	Standard (2,500 rpm)	Optional (2,500 rpm)
Category, 3-Point Hitch	CAT I	Category I
Hitch Lift Capacity (at 24”)	728 lb	679 lb

R3 Turf - Rear	26 x 12.0 - 12	16X12.00-12
R3 Turf - Front	18 x 8.5 - 10	16X7.50-8
Tire Size & Options	Front: 18x8.5-10 Industrial; Rear: 26x12.0-12 Industrial	R4 Industrial (Std), R3 Turf (Opt), Goodyear R14 (Opt)
R4 Industrial - Rear	26 x 12.0 - 12	Not Published
R4 Industrial - Front	18 x 8.5 - 10	Not Published
R1 Agricultural - Rear	Not Published	BAR R 24X12.00-12
R1 Agricultural - Front	Not Published	BAR F 16X7.50-9

Coolant Capacity	0.9 gal (0.9U.S.gals)	3.7 qt
Crankcase Capacity	0.8 gal (0.8U.S.gals)	2.1 qt
Fuel Tank Capacity	6.6 gal.	6.6 gal
Front Axle Fluid Capacity	0.5 gal (0.5U.S.gals)	2.6 qt
Transmission / Hydraulic System Capacity	3 gal (3.0U.S.gals)	3.6 gal

Loader Lift Height	72.0 in.	72 in
Loader Breakout Force	1,960 lbs.	1,285 lb
Quick Attach Loader System	LL1101: Pin-Type Bucket (standard); Quick Attach Assembly (Optional) - Compact Type (dual-lever LH/RH); LL1700: Quick Attach Implement System	Skid-Steer Compatible Quick-Attach
Loader Lift Capacity (Full Height)	1,007 lbs.	617 lb

Clutch	Not Applicable	Not Published
No. of Speeds	2 Ranges	2 Range
Transmission Type	Hydrostatic Drive	Hydrostatic
Max Travel Speed (Forward)	0 ~ 14.0 Km/h (0 ~ 8.70 mph)	7.8 mph
Max Travel Speed (Reverse)	0 ~ 8.4 Km/h (0 ~ 5.22 mph)	Not Published
Differential Lock & Limited Slip Options	Mechanical pedal type	Differential lock

Brakes	Wet, Multi-disc	Wet Disc
Steering	Hydrostatic Power Steering	Hydrostatic
Frame Type	Not Published	Not Published
Front Axle Type	Front Wheel Mechanical Assist (4WD)	center-pivot, reverse Eliot type
Drawbar Capacity	Vertical load: 881.8 lb (882lbs), Horizontal load: 1.6 tonnes (3527lbs)	Not Published
Front Axle Rating	1433 lb	Not Published
Seat Suspension & Adjustability	High-Back Seat with Foldable Armrest and Retractable Seatbelt; fore/aft adjustable	Suspension seat with armrests & retractable seat belt

Wheelbase	56 in.	53.1 in
Overall Width	47 in.	44.5 in
Overall Length	97 in.	—
Ground Clearance	Not provided in source	F/A 8.3 in
Height to Top of ROPS	87 in.	86.6 in
Height to Top of Cab Model	Not Applicable	Not Applicable
Height to Top of ROPS (folded)	Not Published	Not Published
Min. Turn Radius without Brakes	7.87 ft	86.6 in
Overall Length with 3-Point Hitch	97 in.	94.2 in

LS Tractor MT122 vs Rural King RK21H: Quick Answers

Which has more horsepower, the LS Tractor MT122 or the Rural King RK21H?: They are effectively tied: both machines are rated at 21.5 hp hp for engine hp.
Which has more PTO horsepower, the LS Tractor MT122 or the Rural King RK21H?: The Rural King RK21H leads on pto hp at 15.4 hp hp, compared to 15 hp hp for the LS Tractor MT122.
Which is heavier, the LS Tractor MT122 or the Rural King RK21H?: The Rural King RK21H leads on weight at 1,942 lb lb, compared to 1,433 lb lb for the LS Tractor MT122.
Which has more loader lift capacity, the LS Tractor MT122 or the Rural King RK21H?: The LS Tractor MT122 leads on loader lift at 1,007 lb lb, compared to 617 lb lb for the Rural King RK21H.
Which has more three-point hitch lift capacity, the LS Tractor MT122 or the Rural King RK21H?: The LS Tractor MT122 leads on 3-pt lift (24 in) at 728 lb lb, compared to 679 lb lb for the Rural King RK21H.