NISSAN DIESEL UD BIG THUMB RESONA CW55 CW53 CWB RG8 22T RH HEAVY DUTY HYDRAULIC POWER STEERING PUMP P/STG PUMP (14670-97403 / 1467097403 / 475-03296 / 47503296 / 22 TEETH)

Overview

The Nissan Diesel UD RG8 Hydraulic Power Steering Pump (P/STG Pump Assembly 14670-97403 / 475-03296) is a heavy-duty hydraulic steering component engineered specifically for Nissan Diesel (UD) Big Thumb, Resona, and heavy commercial transport trucks powered by the Nissan RG8 V8 diesel engine (CW55, CW53, CWB, CD, and GW 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 Right-Hand (RH) rotation, 22-Tooth (22T) drive gear configuration, this high-output hydraulic vane pump generates continuous, calibrated fluid pressure to supply 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 22-Tooth (22T) helical drive gear

• Rotation Direction: Right-Hand (RH) rotation

• Hydraulic Ports: Threaded high-pressure discharge port & approx. 30 mm suction feed inlet hole

• Operating Specifications: Nominal displacement 27 ml/r, Maximum operating pressure 130 bar, Rotational speed range 500–3200 r/min, Controlled flow rate 17 L/min

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

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

Compatible Truck Models & Engine Applications

• NISSAN DIESEL (UD TRUCKS): Big Thumb & Resona Heavy Commercial Trucks (CW55, CW53, CWB, CD, GW Series Heavy Cargo Lorries, Wooden Body Trucks, Tippers, Dump Trucks & Prime Movers)

• Engine Application:

  • Nissan Diesel RG8 (17.9L V8 Diesel)

• OEM & Cross-Reference Part Numbers:

  • 14670-97403 / 1467097403 (Nissan / UD Trucks Genuine OEM)

  • 475-03296 / 47503296 (KYB / Kayaba reference)

  • 14670-97403 RH (22T)

• (Note: Specifications vary between LH vs. RH rotation and gear tooth count [22T vs. 23T vs. 26T]. Please verify your original part number, tooth count, and sample dimensions prior to ordering.)

Why Choose Our Commercial Truck Parts?

• Calibrated High-Pressure Hydraulic Flow (27 ml/r, 130 bar): Precision-machined internal rotor and vanes deliver a steady 17 L/min fluid delivery even at low engine idling speeds, minimizing driver fatigue during tight maneuvers.

• Induction-Hardened 22T 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 130-bar internal pressure relief valve ensures stable line pressure while preventing high-pressure hose 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) / sample photos to our team via WhatsApp for instant confirmation!