TOYOTA LAND CRUISER 70 80 100 HZJ75 HZJ78 HZJ79 HDJ80 HZJ80 HZJ105 1HZ 1HD 4.2L GEAR DRIVEN HEAVY DUTY HYDRAULIC POWER STEERING PUMP (OE: 44320-60220 / 44320-60171 / 44320-60170 / 44320-36240)

Overview

The Toyota Land Cruiser HZJ75 / 1HZ Hydraulic Power Steering Pump (P/STG Pump Assembly 44320-60220 / 44320-60171) is a commercial-grade hydraulic steering component engineered specifically for Toyota Land Cruiser 70, 80, and 100 Series heavy utility 4x4 transport vehicles powered by Toyota 1HZ (4.2L inline-6 diesel), 1HD-T / 1HD-FT (4.2L turbo diesel), and 1PZ (3.5L 5-cylinder diesel) engines (Land Cruiser HZJ75, HZJ70, HZJ73, HZJ78, HZJ79, HDJ80, HZJ80, HZJ105, and PZJ75 series utility pickups, troop carriers, cab-chassis workhorses, flatbeds, and off-road fleet vehicles equipped with gear-driven hydraulic power steering systems). Built with a direct engine timing gear-driven helical gear, heavy-duty flange mounting configuration, this precision hydraulic vane pump delivers steady, calibrated 85–100 bar line pressure directly to the heavy-duty 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 fluid cavitation/aeration, and restores smooth, effortless steering control under heavy payload haulage and rugged off-road operating conditions.

Engineered to commercial fleet specifications verified against Malaysian commercial 4x4 and heavy utility transport standards for dependable workshop replacement, steering overhaul, and preventive fleet maintenance.

Key Dimensions (As Labeled in Product Photos)

• Mounting Configuration: Standard heavy-duty flange mounting (direct timing gear housing mount)

• Drive Mechanism: Precision-machined helical drive gear

• Drive Type: Direct engine timing gear driven

• Operating Specifications: Nominal displacement ~14.3 ml/r, Maximum operating pressure 85–100 bar, factory-calibrated flow rate

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

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

• Please verify your existing pump gear profile, mounting flange, and pipe connections against the measurements shown in our photos before ordering.

Compatible Truck & 4x4 Vehicle Applications

• TOYOTA LAND CRUISER 4x4:

  • Land Cruiser 70 Series (HZJ75, HZJ70, HZJ71, HZJ73, HZJ74, HZJ78, HZJ79, PZJ70, PZJ75 Series Pickups, Troopy & Cab-Chassis)

  • Land Cruiser 80 Series (HZJ80, HDJ80 Series)

  • Land Cruiser 100 / 105 Series (HZJ105 Series)

  • Toyota Coaster Bus (HZB50 Series running 1HZ engine)

• Engine Application:

  • Toyota 1HZ (4.2L 6-Cylinder SOHC Naturally Aspirated Diesel)

  • Toyota 1HD-T / 1HD-FT (4.2L 6-Cylinder Turbo Diesel)

  • Toyota 1PZ (3.5L 5-Cylinder SOHC Diesel)

• OEM & Cross-Reference Part Numbers:

  • 44320-60220 (Toyota Genuine OEM)

  • 44320-60171 / 44320-60170

  • 44320-36240

  • 44320-60200

• (Note: In the commercial and utility 4x4 market, Toyota 1HZ and 1HD engines utilize this gear-driven pump mounted directly into the engine timing case. Please verify your original part number and sample mounting profile prior to ordering.)

Why Choose Our Commercial Fleet Parts?

• Calibrated High-Pressure Hydraulic Flow (85–100 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 Timing Drive Gear: High-grade heat-treated helical 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 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!