Tractor reference
RK Tractors RK21H
Specifications, maintenance, parts and compatibility reference.
Reference set: United States · ROPS; 2-range hydrostatic; 4WD · Current Current RK Tractors US subcompact configuration.
Machine Configuration
Operator stationROPS
Engine
Engine manufacturerYanmar
Cylinders3
Emissions standardEPA Tier 4
Gross engine power21.5 hp
Transmission
Standard transmission2-range hydrostatic
SteeringHydrostatic power steering
PTO
PTO configurationRear & mid PTO
Hydraulics
Standard rear remote valvesNot stated as standard on current model page
3-point hitchCategory I
Documented attachment fitment
Attachment fitment is stored separately from the specification/parts version selector. Multiple cited records for the same attachment are grouped below rather than shown as duplicate attachments. A listed attachment may still require a specific axle, driveline, transmission or tractor configuration.
Front loaderRK Tractors L72Fitment note: L72: Quick-attach front-end loader with 48 in bucket; listed on the current RK Tractors model/series page.Front loader details: Quick-attach front-end loader with 48 in bucket. Current official RK Tractors fitment.Fitment source: RK Tractors L72 current fitment →
Sources
RK Tractors · official sourceRK Tractors L72 current fitment