NISSAN DIESEL UD BIG THUMB RESONA CW520 RF8 V8 LH BIG SHAFT HEAVY DUTY HYDRAULIC POWER STEERING PUMP P/STG PUMP (14670-97312 / 1467097312/14670-97367)

Overview

The Nissan Diesel UD RF8 / CW520 Hydraulic Power Steering Pump (P/STG Pump Assembly 14670-97312 / 1467097312/14670-97367) is a heavy-duty hydraulic steering component engineered for Nissan Diesel (UD) Big Thumb, Resona CW520, and heavy commercial transport trucks powered by the Nissan RF8 V8 diesel engine (CW520 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, Big Shaft (BS) configuration, this 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 and vibration 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 helical drive gear / drive shaft coupling (Big Shaft / BS configuration)

• Rotation Direction: Left-Hand (LH) rotation

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

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

• Please verify your existing pump rotation (LH), big shaft diameter, and mounting flange dimensions against the measurements shown in our photos before ordering.

Compatible Truck Models & Engine Applications

• NISSAN DIESEL (UD TRUCKS): Big Thumb & Resona CW520 Heavy Commercial Trucks (Heavy Cargo Lorries, Wooden Body Trucks, Tippers, Dump Trucks & Prime Movers)

• Engine Application:

  • Nissan Diesel RF8 (17.0L V8 Naturally Aspirated Diesel)

• OEM Part Number:

  • 14670-97312 / 1467097312 /14670-97367 (Nissan / UD Trucks Genuine OEM)

• (Note: Specifications vary between LH and RH rotation, small shaft vs. big shaft, and gear tooth profiles. Please verify your original part number, rotation, and sample dimensions prior to ordering.)

Why Choose Our Commercial Truck Parts?

• Consistent High-Pressure Hydraulic Flow: Precision-machined internal rotor and vanes provide continuous, smooth hydraulic assistance even at low engine idling speeds, minimizing driver fatigue during tight maneuvers.

• Wear-Resistant Big Shaft & Drive Assembly: Heavy-duty induction-hardened big shaft and gear teeth prevent shaft shear, gear tooth pitting, and premature backlash 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 / Shaft Type (Big Shaft) / sample photos to our team via WhatsApp for instant confirmation!