ISUZU FORWARD F-SERIES FTR FSR FVR FRR 6HH1 8.2L 2-HOLE FLANGE 30T LH 9.0ML 85BAR HYDRAULIC POWER STEERING PUMP (OE: 470-04156 / 1-19500-595-0 / 47004156)

Overview

The Isuzu Forward 6HH1 Hydraulic Power Steering Pump (P/STG Pump Assembly 470-04156 / 1-19500-595-0) is a commercial-grade hydraulic steering component engineered specifically for Isuzu Forward and F-Series commercial medium-to-heavy transport trucks powered by the Isuzu 6HH1 (8.2L) and 6HH1-S 6-cylinder diesel engine (FTR, FSR, FVR, FRR, and FTR33 series cargo lorries, wooden body trucks, tippers, dump trucks, box vans, and refrigerated haulers equipped with gear-driven hydraulic power steering systems). Built in the Left-Hand (LH) rotation, 30-Tooth (30T) helical drive gear, 2-hole (2-bolt) flange mounting configuration, this precision hydraulic vane pump delivers a steady, calibrated hydraulic flow rate of 7.0–9.0 L/min at up to 85 bar operating pressure (9.0 ml/r displacement) directly to the power steering gearbox. Replacing a worn, whining, stiff, or leaking power steering pump eliminates heavy steering effort, cures steering wheel shuddering and judder at engine idle RPM, prevents hydraulic oil cavitation/aeration, 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 2-hole flange mounting (2-bolt engine timing gear casing mount)

• Drive Mechanism: Precision-machined 30-Tooth (30T) helical drive gear (Left-Hand / LH rotation)

• Rotation Direction: Left-Hand (LH) rotation

• Operating Specifications: Nominal displacement 9.0 ml/r, Maximum operating pressure 85 bar, Operating speed range 500–3600 r/min, Controlled flow rate 7.0–9.0 L/min

• Hydraulic Ports: Threaded high-pressure discharge port (M16 × 1.5 for banjo bolt or flare fitting) & suction feed inlet tube connection (ø17 mm with O-ring seal)

• Measurement Notice: Key specifications including 2-bolt mounting flange center-to-center pitch, pilot spigot diameter, 30T drive gear outer diameter, tooth pitch, and hydraulic port dimensions are labeled directly in the product photos.

• Please verify your existing pump rotation (LH), 30-tooth count, and 2-hole flange profile against the measurements shown in our photos before ordering.

Compatible Truck Models & Engine Applications

• ISUZU COMMERCIAL TRUCKS:

  • Forward / F-Series (FTR, FSR, FVR, FRR, FTR33 Medium & Heavy Commercial Lorries, Cargo Trucks, Wooden Body Trucks, Tippers & Dump Lorries)

• Engine Application:

  • Isuzu 6HH1 / 6HH1-N / 6HH1-S (8.2L 6-Cylinder Naturally Aspirated Diesel)

  • Isuzu 6HK1 / 6HE1 (Select early mechanical gear configurations)

• OEM & Cross-Reference Part Numbers:

  • 470-04156 / 47004156

  • 1-19500-595-0 / 1-19500595-0 / 1195005950

  • 1-19500-595-1

• (Note: In the Malaysian commercial truck market, Isuzu 6HH1 medium/heavy lorries run this 2-hole flange pump with Left-Hand [LH] rotation and 30-tooth [30T] drive gear. Always verify your original gear tooth count [30T], rotation direction [LH], and 2-hole flange profile prior to ordering.)

Why Choose Our Commercial Truck Parts?

• Calibrated High-Pressure Hydraulic Flow (9.0 ml/r, 85 bar): Precision-machined internal rotor and vanes provide continuous, smooth hydraulic assistance even at low engine idling speeds, minimizing driver fatigue during tight maneuvers.

• Induction-Hardened 30T LH Drive Gear: High-grade heat-treated 30-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 (30T) / Rotation (LH) / sample photos to our team via WhatsApp for instant confirmation!