HINO RANGER FF FD GD FC H07C H07D H06C 17T RH 13.6ML 110BAR HEAVY DUTY HYDRAULIC POWER STEERING PUMP / P/STG PUMP (OE: 44310-1880 / 44310-1881 / S4431-1880)

Overview

The Hino H07C / H07D Hydraulic Power Steering Pump (P/STG Pump Assembly 44310-1880 / S4431-01880) is a heavy-duty hydraulic steering component engineered specifically for Hino Ranger (FF, FD, GD, FC series) commercial transport trucks and bus chassis powered by Hino H07C, H07D, and H06C 6-cylinder diesel engines (cargo lorries, wooden body trucks, tippers, dump trucks, box vans, and commercial haulers equipped with gear-driven hydraulic power steering systems). Built in the Right-Hand (RH) rotation, 17-Tooth (17T) helical drive gear, standard 2-bolt flange mounting configuration, this hydraulic vane pump delivers a steady, calibrated hydraulic flow rate of 10.0–12.0 L/min at up to 110 bar operating pressure directly to the power steering gearbox. Replacing a worn, whining, or leaking power steering pump eliminates heavy or stiff steering, cures steering wheel shuddering at low engine idling RPM, prevents hydraulic oil aeration/cavitation, and restores smooth, effortless steering control under heavy commercial payloads.

Engineered to heavy commercial fleet specifications for dependable workshop replacement, steering system overhaul, and preventive chassis maintenance.

Key Dimensions (As Labeled in Product Photos)

• Mounting Configuration: Standard heavy-duty 2-bolt flange mounting (direct engine timing gear casing mount)

• Drive Mechanism: Precision-machined 17-Tooth (17T) helical drive gear (Right-Hand / RH rotation)

• Rotation Direction: Right-Hand (RH) rotation

• Operating Specifications: Nominal displacement 13.6 ml/r, Maximum operating pressure 110 bar, Operating speed range 500–3600 r/min, Controlled flow rate 10.0–12.0 L/min

• Hydraulic Ports: Standard threaded high-pressure discharge port (for banjo bolt or flare fitting) & suction feed inlet tube connection

• Measurement Notice: Key specifications including 2-bolt mounting flange center-to-center pitch, pilot spigot diameter, 17T drive gear outer diameter, tooth pitch, and hydraulic port thread sizes are labeled directly in the product photos.

• Please verify your existing pump rotation (RH), 17-tooth count, and 2-bolt flange profile against the measurements shown in our photos before ordering.

Compatible Truck Models & Engine Applications

• HINO TRUCKS & BUS:

  • Hino Ranger Series (FF, FD, GD, FC Series Commercial Lorries, Cargo Trucks, Wooden Body Trucks, Tippers & Dump Lorries)

  • Hino Commercial Bus Chassis (H07C / H07D Engine Variants)

• Engine Application:

  • Hino H07C (6.7L 6-Cylinder Diesel)

  • Hino H07D (7.4L 6-Cylinder Diesel)

  • Hino H06C / H06C-T (6.5L 6-Cylinder Diesel / Turbo Diesel)

• OEM & Cross-Reference Part Numbers:

  • 44310-1880 (Hino Genuine OEM)

  • 44310-1881

  • S4431-01880

• (Note: In the Malaysian commercial truck market, Hino H-series pumps vary between 17-tooth [44310-1880] and 18-tooth [44310-1791] gear profiles. Please verify your original pump sample and gear teeth count [17T] prior to ordering.)

Why Choose Our Commercial Truck Parts?

• Calibrated High-Pressure Hydraulic Flow (13.6 ml/r, 110 bar): Precision-machined internal rotor and vanes provide continuous, smooth 10.0–12.0 L/min hydraulic assistance even at low engine idling speeds, minimizing driver fatigue during tight maneuvers.

• Induction-Hardened 17T Drive Gear: High-grade heat-treated 17-tooth gear profile resists gear tooth pitting, backlash, and premature wear against the engine timing gear train.

• Integrated Flow Control & Relief Valve: Factory-calibrated internal pressure relief valve ensures stable line pressure while preventing high-pressure line bursts during full steering lock.

• High-Grade Oil Seals: Heat- and oil-resistant internal seals prevent hydraulic steering fluid from leaking into the engine oil crankcase.

• Ready Stock & Fast Shipping: Readily stocked for quick dispatch across Peninsular and East Malaysia.

Need Help Confirming Fitment?

Unsure whether this power steering pump matches your lorry's existing engine setup?

• Check your old pump against the measurements shown in our pictures.

• Or send your Chassis Number (VIN) / Engine Model / Gear Teeth Count (17T) / sample photos to our team via WhatsApp for instant confirmation!