ISUZU ELF NPR NKR 4BE1 4BC2 NEW 3.6L 28T 12.0ML RH HEAVY DUTY HYDRAULIC POWER STEERING PUMP P/STG PUMP (44306-1160Q / 44306-1160 / 8-97098878-0 / 8-97084-297-9 / 28 TEETH)

Overview

The Isuzu NPR / 4BE1 Hydraulic Power Steering Pump (P/STG Pump Assembly 44306-1160Q / 8-97098878-0) is a commercial-grade hydraulic steering component engineered specifically for Isuzu Elf, NPR, and NKR commercial light-to-medium transport trucks powered by Isuzu 4BE1 (3.6L) and 4BC2 (New Model, 3.3L) 4-cylinder diesel engines (NPR 3.6, NPR 3.9, and NKR series cargo lorries, wooden body trucks, box vans, tippers, and light commercial haulers equipped with gear-driven hydraulic power steering systems). Built in the Right-Hand (RH) rotation, 28-Tooth (28T) helical drive gear configuration, this hydraulic vane pump delivers a steady, calibrated hydraulic flow rate of 10.0 L/min at up to 100 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 28-Tooth (28T) helical drive gear (Right-Hand / RH rotation)

• Rotation Direction: Right-Hand (RH) rotation

• Operating Specifications: Nominal displacement 12.0 ml/r, Maximum operating pressure 100 bar, Operating speed range 500–3200 r/min, Controlled flow rate 10.0 L/min

• Hydraulic Ports: Threaded high-pressure discharge port (M18 × 1.5) & Φ12 mm suction oil feed inlet port

• Measurement Notice: Key specifications including mounting flange bolt center-to-center pitch, pilot spigot diameter, 28T drive gear outer diameter, tooth pitch, and hydraulic port dimensions are labeled directly in the product photos.

• Please verify your existing pump rotation (RH), 28-tooth count, and mounting flange profile against the measurements shown in our photos before ordering.

Compatible Truck Models & Engine Applications

• ISUZU TRUCKS: Elf, NPR Series (NPR 3.6 / NPR 3.9), NKR Series Commercial Light & Medium Trucks (Cargo Lorries, Wooden Body Trucks, Box Vans, Tippers & Refrigerated Trucks)

• Engine Application:

  • Isuzu 4BE1 (3.6L 4-Cylinder Naturally Aspirated Diesel)

  • Isuzu 4BC2 (New Model, 3.3L 4-Cylinder Diesel)

• OEM & Cross-Reference Part Numbers:

  • 44306-1160Q / 443061160Q

  • 44306-1160 / 443061160

  • 8-97098878-0 / 8970988780

  • 8-97084-297-9 / 8970842979

• (Note: In the Malaysian commercial truck market, 4BE1 and 4BC2 New Model pumps run a 28T gear profile in RH rotation. If your truck runs 4BD1T or older 4BC2 variants, please check your gear teeth count and sample pump dimensions prior to ordering.)

Why Choose Our Commercial Truck Parts?

• Calibrated High-Pressure Hydraulic Flow (12.0 ml/r, 100 bar): Precision-machined internal rotor and vanes provide continuous, smooth 10.0 L/min hydraulic assistance even at low engine idling speeds, minimizing driver fatigue during tight maneuvers.

• Induction-Hardened 28T Drive Gear: High-grade heat-treated 28-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 (28T) / sample photos to our team via WhatsApp for instant confirmation!