HINO SUPER DOLPHIN FS SS SH ZM EK100 EM100 13.3L 18T 16.0ML 130BAR RH HEAVY DUTY HYDRAULIC POWER STEERING PUMP P/STG PUMP (44310-1490 / 443101490 / 44310-1621 / 443101621 / 18 TEETH)

Overview

The Hino EK100 / EM100 Hydraulic Power Steering Pump (P/STG Pump Assembly 44310-1490 / 44310-1621) is a heavy-duty hydraulic steering component engineered specifically for Hino Super Dolphin, FS, SS, SH, and ZM series heavy commercial transport trucks powered by Hino EK100 (13.3L) and EM100 (9.4L) inline-6 diesel engines (heavy cargo lorries, dump trucks, tippers, concrete mixers, prime movers, and logging haulers equipped with gear-driven hydraulic power steering systems). Built in the Right-Hand (RH) rotation, 18-Tooth (18T) drive gear configuration, this high-output hydraulic vane pump delivers a steady, calibrated hydraulic flow rate of 16.0 L/min at up to 130 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 flange mounting (direct engine timing gear casing mount)

• Drive Mechanism: Precision-machined 18-Tooth (18T) helical drive gear

• Rotation Direction: Right-Hand (RH) rotation

• Operating Specifications: Nominal displacement 16.0 ml/r, Maximum operating pressure 130 bar, Speed range 500–3200 r/min, Controlled flow rate 16.0 L/min

• Hydraulic Ports: Threaded high-pressure outlet port (for banjo bolt or flare fitting) & Φ12 mm suction oil feed inlet port

• Measurement Notice: Key specifications including mounting flange bolt center-to-center pitch, pilot spigot diameter, 18T drive gear outer diameter, tooth pitch, and hydraulic port dimensions are labeled directly in the product photos.

• Please verify your existing pump rotation (RH), 18-tooth count, and mounting flange profile against the measurements shown in our photos before ordering.

Compatible Truck Models & Engine Applications

• HINO TRUCKS: Super Dolphin, FS, SS, SH, ZM Series Heavy Commercial Trucks (Heavy Cargo Lorries, Wooden Body Trucks, Tippers, Dump Trucks, Concrete Mixers & Prime Movers)

• Engine Application:

  • Hino EK100 (13.3L 6-Cylinder Diesel)

  • Hino EM100 (9.4L 6-Cylinder Diesel)

• OEM & Cross-Reference Part Numbers:

  • 44310-1490 / 443101490 (Hino Genuine OEM)

  • 44310-1621 / 443101621

  • 44300-1490 / 443001490

• (Note: In the commercial truck market, Hino heavy chassis pumps vary across engine generations in gear tooth count [18T] and pressure relief ratings. Please cross-check your original pump sample and gear teeth count prior to ordering.)

Why Choose Our Commercial Truck Parts?

• Calibrated High-Pressure Hydraulic Flow (16.0 ml/r, 130 bar): Precision-machined internal rotor and vanes provide continuous, smooth 16.0 L/min hydraulic assistance even at low engine idling speeds, minimizing driver fatigue during tight maneuvers.

• Induction-Hardened 18T Drive Gear: High-grade heat-treated 18-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 (18T) / sample photos to our team via WhatsApp for instant confirmation!