ISUZU TFR RODEO D-MAX TROOPER INVADER HICOM PERKASA 4JA1 4JB1 2.5L 2.8L V-BELT PULLEY WITH BRACKET 100BAR HYDRAULIC POWER STEERING PUMP (OE: 8-97129-593-0 / 8-97129-593-1 / 8-97331-940-0 / 470-03148)

Overview

The Isuzu TFR / Rodeo / Hicom 4JA1 4JB1 Hydraulic Power Steering Pump (P/STG Pump Assembly 8-97129-593-0 / 8-97331-940-0) is a commercial-grade hydraulic steering component engineered specifically for Isuzu TFR, Rodeo, Trooper, Invader, early D-Max, and Hicom commercial utility transport vehicles powered by Isuzu 4JA1 (2.5L) and 4JB1 / 4JB1-T (2.8L) 4-cylinder direct-injection diesel engines (TFR54, TFR55, TFS, Rodeo, Trooper UBS55, Invader, and Hicom Perkasa 2.8 commercial pickups, single/double cab work trucks, flatbeds, and utility fleet haulers equipped with belt-driven hydraulic power steering systems). Built with a heavy-duty engine mounting bracket and precision V-belt drive pulley configuration, this precision hydraulic vane pump delivers a steady, calibrated hydraulic flow rate of 7.0 L/min at up to 100 bar operating pressure directly to the power steering gearbox. Replacing a worn, whining, stiff, or leaking power steering pump eliminates heavy steering effort, cures steering wheel vibration and judder at engine idle RPM, prevents hydraulic oil aeration/cavitation, and restores smooth, effortless steering control under heavy commercial payloads and daily fleet operations.

Engineered to commercial fleet specifications verified against Malaysian commercial pickup and light transport standards for dependable workshop replacement, steering overhaul, and preventive fleet maintenance.

Key Dimensions (As Labeled in Product Photos)

• Mounting Configuration: Heavy-duty engine block bracket mount (bracket-mounted assembly for quick tensioning and direct bolt-on installation)

• Drive Mechanism: Precision-balanced V-belt pulley drive (direct belt-driven off engine crankshaft pulley)

• Drive Type: Belt driven (V-belt configuration)

• Operating Specifications: Nominal displacement 7.2–8.5 ml/r, Maximum operating pressure 100 bar, Operating speed range 500–6000 r/min, Controlled flow rate 7.0 L/min

• Hydraulic Ports: Threaded high-pressure discharge port (for banjo bolt or flare fitting) & suction feed inlet tube union with O-ring seal

• Measurement Notice: Key specifications including mounting bracket bolt center-to-center pitch, pulley diameter, belt groove width, pulley offset, and hydraulic port dimensions are labeled directly in the product photos.

• Please verify your existing pump mounting bracket pattern, pulley groove profile, and hose connections against the measurements shown in our photos before ordering.

Compatible Truck & Commercial Pickup Applications

• ISUZU COMMERCIAL PICKUPS & UTILITY:

  • TFR / TFS / Rodeo / Invader / Faster (TFR54, TFR55 Series Commercial Pickups, Single Cab & Double Cab)

  • Trooper / Bighorn (UBS55 Series 2.8L Diesel)

  • D-MAX 1st Generation (RA / RC Series 2.5L / 2.8L Diesel)

  • Panther / Hi-Lander (2.5L 4JA1 Utility Vans & Wagons)

• HICOM COMMERCIAL TRUCKS:

  • Perkasa Series (MTB145 2.8D Commercial Light Trucks)

• OPEL / VAUXHALL COMMERCIAL:

  • Campo / Brava Pickup (2.5 D / 2.8 TD running 4JA1 / 4JB1 engines)

• Engine Application:

  • Isuzu 4JA1 / 4JA1-T (2.5L 4-Cylinder Naturally Aspirated & Turbo Diesel)

  • Isuzu 4JB1 / 4JB1-T (2.8L 4-Cylinder Naturally Aspirated & Turbo Diesel)

• OEM & Cross-Reference Part Numbers:

  • 8-97129-593-0 / 8-97129593-0 / 8971295930 (Isuzu Genuine OEM)

  • 8-97129-593-1 / 8-97129593-1

  • 8-97331-940-0 / 8-97331940-0

  • 470-03148 / 47003148

  • 8-97084-953-0 / 8-97305-148-0

• (Note: In the Malaysian commercial vehicle market, Isuzu 4JA1 and 4JB1 engines on TFR, Invader, Trooper, and Hicom 2.8 utilize this belt-driven pump complete with mounting bracket. Please confirm your existing pump bracket pattern and pulley offset prior to ordering.)

Why Choose Our Commercial Fleet Parts?

• Calibrated High-Pressure Hydraulic Flow (100 bar): Precision-machined internal rotor and vanes provide continuous, smooth 7.0 L/min hydraulic assistance even at low engine idling speeds, minimizing driver steering effort.

• Reinforced Bracket & Heavy-Duty Shaft Assembly: Heavy-duty bearing and precision-aligned mounting bracket withstand continuous belt tension without developing shaft play, vibration, or bearing whine.

• Integrated Flow Control & Relief Valve: Factory-calibrated 100-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 leakage and maintain system pressure integrity.

• 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 vehicle's engine setup?

• Check your old pump against the measurements shown in our pictures.

• Or send your Chassis Number (VIN) / Engine Model / sample photos to our team via WhatsApp for instant confirmation!