▶ EnginePTO Power 28.7 (21.4) HP (kW) 18.8 hp Air Cleaner LX2620: 4.5 inch paper filter (with dual filter); LX3520/LX4020: 6 inch paper filter (with dual element) Single element Engine Type Indirect injection, vertical, water-cooled, 4-cycle diesel and Direct injection, vertical, water-cooled, 4-cycle diesel with turbocharger Water cooled, 4-cycle Diesel Fuel System Common Rail (CRS) diesel Indirect Fuel Injection Displacement 77 in³ 77.3 in³ No. of Cylinders 4 3 Rated Engine Speed 2500 rpm 3000 rpm Cooling System Type Pressurized radiator with radial air flow fan Water cooled, forced circulation Engine Manufacturer Kubota Yanmar Engine Power (Gross) 23.3 hp 23.9 hp Alternator — 40 A, 12 V Engine Model — 3TNV80F-SDKTFF Engine Emissions Constraints — Tier 4 ▶ WeightTractor Weight (Base) LX2620: 1,775 lbs; LX3520DTN: 2,154 lbs; LX3520: 2,191 lbs; LX4020: 2,624 lbs — Tractor Weight with Loader — 2,091 lb Weight with Cab and Loader — Not Published Weight with ROPS and Loader — 2,091 lb ▶ WarrantyWarranty Length & Coverage Full warranty: 2 years / 2,000 hours | Powertrain warranty: 6 years / 2,000 hours Full-machine: 24 months/2,000 hours; Powertrain: 96 months/3,000 hours (whichever comes first) ▶ HydraulicsPump Type Dual pump Gear Pump Pump Flow (Total) LX2620: 8.7 gpm (33.1 ℓ/min); LX3520: 9.1 gpm (34.5 ℓ/min); LX4020: 9.5 gpm (35.8 ℓ/min) — Total Hydraulic Flow 9.1 (34.5) gpm (l/min.) 6.95 gpm Hydraulic System Type Open center Hydrostatic System Operating Pressure Open center system — Overall Hydraulic Pump Flow 9.1 (34.5) gpm (l/min.) 26.3 lpm (6.95 US gpm) Steering Flow — Not Published Implement Flow — Not Published Rear Remote Hydraulic Flow — Not Published No. of Optional Remote Valves — NOT FOUND — no source explicitly states the number of optional remote valves available for the RK24. Sources confirm 1 standard rear remote set is included, but do not specify optional add-on valve counts. No. of Standard Remote Valves — 1 ▶ PTO & HitchPTO Rear 540 rpm 540 rpm PTO Type Independent Independent PTO Lift Control Type Position control valve Position control Hitch Lift Capacity 2348 (1065) lbs. (kg) 1,323 lb Mid PTO (Type / RPM) 2500 RPM (LX2620), 2460 RPM (LX3520/LX4020, optional) — Mid-PTO Availability 2460 RPM Standard, 2,000 rpm @ 2,875 rpm Rear PTO (Type / RPM) 540 RPM — Category, 3-Point Hitch Category I Category I Three-Point Hitch Category Category I — Lift Capacity at 24 in Behind LX2620: 1,819 lbs; LX3520/LX4020: 1,962 lbs — Hitch Lift Capacity (at 24”) — Not Published ▶ Tire OptionsR3 Turf - Rear 16.6-16 29X12.5-15 R3 Turf - Front 24x8.5-14 20X8-10 Tire Size & Options Front R1: 7-12; R4: 23×8.50-12; R4 large: 25×8.50-14; R14: 23×8.50-12; R14 large: 25×8.50-14; TURF: 24×8.50-14; Rear R1: 12.4-16; R4: 14-17.5; R14: 14-17.5; TURF: 13.6-16; R4 large: 15-19.5; R14 large: 15-19.5 R4 Industrial (Std), R3 Turf (Opt) R1 Ag (Opt), Goodyear R14 (Opt) R4 Industrial - Rear 14-17.5 or 15-19.5 27X12.5-15 R4 Industrial - Front 23x8.5-12 or 25x8.5-14 20X8-10 R1 Agricultural - Rear 320/85D16 9.5-16 R1 Agricultural - Front 180/85D12 6-12 ▶ Fluid CapacityCoolant Capacity LX2620: 4.5 qts (4.3 ℓ); LX3520/LX4020: 5.7 qts (5.4 ℓ) 3.6 ℓ (0.96US gal) Crankcase Capacity LX2620: 4.2 qts (4.0 ℓ); LX3520/LX4020: 5.0 qts (4.7 ℓ) 2.7 ℓ ( 0.71 US gal) Fuel Tank Capacity LX2620: 7.1 gal (27 ℓ); LX3520/LX4020: 8.5 gal (32 ℓ) 5.81 gal Transmission/Hydraulic Capacity LX2620: 4.0 gal (15 ℓ); LX3520/LX4020: 5.5 gal (21.0 ℓ) — Transmission / Hydraulic System Capacity 5.5 (21.0) gal (ℓ) 14.5ℓ (3.83 US gal) Front Axle Fluid Capacity — 3.2ℓ (0.85 US gal) ▶ Loader & AttachmentsLoader Lift Height 87.6 (2226) in. (mm) 75.3 Quick Attach Loader System 2-Lever Quick Coupler (Standard); Swift-Tach (Optional) Skid-Steer Compatible Quick-Attach Loader Lift Capacity (Full Height) 1100 (499) lbs. (kg) 947 lb Loader Breakout Force — 1,680 lb ▶ Transmission & DrivetrainClutch N/A Not Published No. of Speeds HST (3 range) 2 Range (High/Low) Number of Speeds 3 ranges (Low, Mid, High) — Transmission Type HST (3 ranges) Hydraulic + Mechanical H/L with constant-mesh Max Travel Speed (Forward) 17.0 (0-27.4) mph (km/h) 10.5 mph Max Travel Speed (Reverse) 13.0 (0-20.8) mph (km/h) Not Published Differential Lock & Limited Slip Options Standard Differential lock (bevel gears with diff-lock) ▶ Chassis, Steering & ControlsBrakes Multi-plate wet disk Wet Disc, Foot operated, independent with provision of inter lock for simultaneous operation Steering Hydrostatic power steering Hydrostatic Power steering system Seat Suspension & Adjustability Deluxe suspension seat (high back, designed to absorb shock) Not Published Frame Type — Not Published Front Axle Type — Center-pivot, reverse Eliot type Drawbar Capacity — Not Published Front Axle Rating — Not Published ▶ Dimensions & ManeuverabilityWheelbase 66.7 (1695) in. (mm) 57.5 in Overall Width 53.7 (1365) in. (mm) 45.8 in Overall Length LX2620: 101.8 in.; LX3520DTN: 98.2 in.; LX3520/LX4020: 101.6-103.9 in. (2580-103.9 in) — Ground Clearance 12.8 (325) in. (mm) 9.4 in Height to Top of ROPS LX3520 Narrow: 56.7 in. (folded) 91.3 in Height to Top of ROPS (folded) 56.7 (1440) in. (mm) Not Published Min. Turn Radius without Brakes 7.5 (2.3) feet (m) Front drive disengaged Not Published Overall Length with 3-Point Hitch 101.8 (2586) in. (mm) 100.5 in Height to Top of Cab Model — Not Published 