▶ EngineEngine Manufacturer Yanmar Yanmar Engine Model 4TNV86CT 4TNV86T-CR Engine Type 4-cylinder, turbocharged, liquid-cooled diesel 4-cycle, inline, water-cooled, turbocharged diesel No. of Cylinders 4 4 Displacement 127.6 in³ 127.6 in³ Rated Engine Speed 2800 rpm 2800 rpm Engine Power (Gross) 55.1 hp 55.1 hp PTO Power 44.9 hp RK55S: 44.9 hp; RK55H: 42.2 hp; RK55SC: 44.9 hp; RK55HC: 42.2 hp Engine Emissions Constraints Tier 4 Tier 4 Cooling System Type Liquid-cooled Water-cooled, forced circulation with fan Air Cleaner Dual dry RK55S, RK55SC: dry dual element; RK55H, RK55HC: dry single element Fuel System CRDI Common Rail Direct Injection Alternator 70 A, 12 V 70 A, 12 V ▶ HydraulicsPump Type Dual gear pump Dual Gear Pump Implement Flow 9.5 gpm 9.5 gpm Steering Flow 4.6 gpm 5.0 gpm Total Hydraulic Flow 14.1 gpm 14.5 gpm Overall Hydraulic Pump Flow 14.1 gpm 14.5 gpm Hydraulic System Type Open center Independent, fully live hydraulic pump with separate reservoir; position control with isolating and response control Rear Remote Hydraulic Flow Not Published Not Published No. of Standard Remote Valves 2 2 No. of Optional Remote Valves Not Published Not Published ▶ Fluid CapacityFuel Tank Capacity 15.9 gal 17 gal Coolant Capacity 9 qt 2.5 gal Crankcase Capacity 7.1 qt 1.4 gal Transmission / Hydraulic System Capacity 9.2 gal 9.24 gal Front Axle Fluid Capacity 10.5 qt 2.64 gal ▶ PTO & HitchPTO Type Independent Independent PTO Rear 540 rpm 540 rpm Mid-PTO Availability Not Published RK55S, RK55SC: no mid-PTO offered Category, 3-Point Hitch Category I Category I Hitch Lift Capacity 3,314 lb 3,314 lb Hitch Lift Capacity (at 24”) 2,945 lb 2,945 lb Lift Control Type Position/Draft Position and draft control ▶ Transmission & DrivetrainTransmission Type Synchro-Shuttle RK55S, RK55SC: 16F/16R Syncro Shuttle w/creeper; RK55H, RK55HC: Hydrostatic, 3-range No. of Speeds F16 x R16 RK55S, RK55SC: 16 forward, 16 reverse; RK55H, RK55HC: infinite (3 ranges) Max Travel Speed (Forward) 18.4 mph RK55S, RK55SC: 18.4 mph; RK55HC: 17.9 mph Max Travel Speed (Reverse) Not Published RK55S, RK55SC: 16.1 mph Clutch Dry single plate RK55S, RK55SC: main dry single disc, mechanical (10.24 in diameter); PTO multiple wet disc Differential Lock & Limited Slip Options Rear differential lock, pedal operated 4WD (MFWD) standard; bevel-gear rear differential lock ▶ Chassis, Steering & ControlsFrame Type Not Published Unit frame. RK55S, RK55SC: transmission case, clutch, clutch housing, engine and front axle support bolted into one rigid unit; RK55H, RK55HC: transmission case, engine and front axle support bolted into one rigid unit Steering Hydrostatic Hydrostatic power steering Brakes Wet disc Wet disc, mechanical, foot operated Seat Suspension & Adjustability Not Published Suspension seat with armrests and retractable seat belt, standard Front Axle Type 4WD, center-pivot reverse Elliot type Center-pivot, reverse Elliot type (4WD) Front Axle Rating Not Published Not Published Drawbar Capacity Not Published Not Published ▶ Dimensions & ManeuverabilityOverall Width 63.8 in 63.8 in Wheelbase 76.2 in 76.2 in Ground Clearance 13.8 in 13.8 in Min. Turn Radius without Brakes 150.4 in Not Published Height to Top of ROPS 102.1 in RK55S, RK55H: 102.1 in Height to Top of ROPS (folded) Not Published Not Published Height to Top of Cab Model Not Published RK55SC, RK55HC: 99.6 in Overall Length 141.3 in (with 3-point hitch) 141.3 in ▶ WeightTractor Weight (Base) 3,814 lb (with ROPS) RK55S, RK55H: 3,814 lb; RK55SC, RK55HC: 4,233 lb Weight with ROPS and Loader Not Published 5,075 lb (3,814 + 1,261, computed) Weight with Cab and Loader Not Published Not Published ▶ Tire OptionsTire Size & Options R1 Agricultural, R3 Turf, R4 Industrial Titan (USA): R4 Industrial (Std), R1 Agricultural (Opt), R3 Turf (Opt), R14 (Opt) R1 Agricultural - Front Farm Specialist 9.5-16 NHS TL 6PR 9.5x16 R1 Agricultural - Rear Farm Specialist 13.6-26 NHS TL 6PR 14.9x24 R3 Turf - Front Multi-Trac CS 27x10.50-15 NHS TL 4PR Not Published R3 Turf - Rear Multi-Trac CS 44x18.00-20 NHS TL 4PR Not Published R4 Industrial - Front Trac Chief 12-16.5 NHS TL 6PR 12x16.5 R4 Industrial - Rear Xtra Grip 17.5L-24 NHS TL 6PR 16.9x24 ▶ Loader & AttachmentsQuick Attach Loader System TX55: Quick attach mechanism L110: Skid-steer compatible quick-attach Loader Model TX55 L110 Loader Lift Height TX55: 109.1 in L110: 110 in Loader Lift Capacity (Full Height) TX55: 2,478 lb (at pivot pin) L110: 2,478 lb at pivot pin to full height Loader Breakout Force TX55: 4,938 lb (at pivot pin, ground level) L110: 4,938 lb at pivot pin ▶ WarrantyWarranty Length & Coverage Basic 24 months or 2,000 hours, parts and labor; non-commercial, 20 to 70 engine hp: powertrain 72 months or 3,000 hours; loaders and backhoes 12 months Basic 2 years or 2,000 hours; powertrain 8 years or 3,000 hours, no deductible, parts and labor ▶ ITC Company AccessoriesAccessories that fit 
