HINO 700 PROFIA FS FR SH P11C P11CT 22T LH ROUND TYPE 28.0ML 140BAR HEAVY DUTY HYDRAULIC POWER STEERING PUMP (OE: 44310-2500 / S44310-2500 / S4431-02500)

Overview

The Hino Profia / 700 Series P11C Hydraulic Power Steering Pump (P/STG Pump Assembly 44310-2500 / S44310-2500) is a heavy-duty hydraulic steering component engineered specifically for Hino 700, Profia, and commercial heavy transport trucks powered by Hino P11C and P11C-T 10.5L 6-cylinder turbo diesel engines (FS, FR, SH series heavy cargo lorries, dump trucks, tippers, concrete mixers, prime movers, and heavy haulers equipped with gear-driven hydraulic power steering systems). Built in the Left-Hand (LH) rotation, 22-Tooth (22T) helical drive gear, Round Type flange configuration, this high-output hydraulic vane pump delivers a steady, calibrated hydraulic flow rate of 17.0–18.0 L/min at up to 140 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: Heavy-duty round flange mounting (Round Type direct timing gear casing mount)

• Drive Mechanism: Precision-machined 22-Tooth (22T) helical drive gear

• Rotation Direction: Left-Hand (LH) rotation

• Operating Specifications: Nominal displacement 28.0 ml/r, Maximum operating pressure 140 bar, Operating speed range 500–3600 r/min, Controlled flow rate 17.0–18.0 L/min

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

• Measurement Notice: Key specifications including round flange pilot spigot diameter, bolt center-to-center pitch, 22T drive gear outer diameter, tooth pitch, and hydraulic port dimensions are labeled directly in the product photos.

• Please verify your existing pump rotation (LH), 22-tooth count, and round mounting flange profile against the measurements shown in our photos before ordering.

Compatible Truck Models & Engine Applications

• HINO TRUCKS: 700 Series & Profia Heavy Commercial Trucks (FS, FR, SH Series Heavy Cargo Lorries, Wooden Body Trucks, Tippers, Dump Trucks, Concrete Mixers & Heavy Prime Movers)

• Engine Application:

  • Hino P11C / P11C-T / P11C-TI (10.5L 6-Cylinder Turbo Diesel)

• OEM & Cross-Reference Part Numbers:

  • 44310-2500 / 4431-2500 (Hino Genuine OEM)

  • S44310-2500 (Hino Official EPC Format)

  • S4431-02500

  • 44310-E0750

• (Note: In the Malaysian commercial truck market, Hino P11C power steering pumps vary in rotation and gear tooth count, including 27T RH [44310-1610], 19T RH [44310-1772], and this 22T LH [44310-2500]. Always verify your rotation direction [LH] and gear tooth count [22T] prior to ordering.)

Why Choose Our Commercial Truck Parts?

• Calibrated High-Pressure Hydraulic Flow (28.0 ml/r, 140 bar): Precision-machined internal rotor and vanes provide continuous, smooth hydraulic assistance even at low engine idling speeds, minimizing driver fatigue during tight maneuvers.

• Induction-Hardened 22T LH Drive Gear: High-grade heat-treated 22-tooth gear profile resists gear tooth pitting, backlash, and premature wear against the engine timing gear train.

• Integrated Flow Control & Relief Valve: Factory-calibrated 140-bar 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 (22T) / Rotation (LH) / sample photos to our team via WhatsApp for instant confirmation!