Machter Auto

Power Steering Pump - Suitable For Toyota Landcruiser 4.2L Diesel 1HZ HZJ75-79 HDJ80 HZJ80

$359.00 AUD

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Power Steering Pump – Toyota LandCruiser 4.2L Diesel 1HZ HZJ75-79 HDJ80 HZJ80

Restore light, smooth steering on your Toyota LandCruiser HZJ75, HZJ78, HZJ79, HDJ80, or HZJ80 (4.2L 1HZ diesel models) with this high-quality power steering pump. Direct replacement for worn or leaking factory units – ideal for work utes, troop carriers, long-wheelbase wagons, or 80 Series tourers that have developed heavy steering, whining noise, fluid leaks, or pump failure after years of towing, off-road abuse, or high mileage in Aussie heat and dust.

Key Features

Complete power steering pump assembly – includes reservoir (where applicable), pulley, and mounting brackets
Direct bolt-on fit for 1HZ 4.2L diesel models: HZJ75 / HZJ78 / HZJ79 (70/78/79 Series), HDJ80 / HZJ80 (80 Series)
High-quality vane or gear-type pump – precision-machined internals for consistent pressure and flow
Heavy-duty shaft, bearings, and seals – resists heat, pressure, and contaminants for long service life
Compatible with factory or aftermarket hoses, reservoirs, boxes, and steering gears
Meets or exceeds OEM specifications (common ref 44310-60050 / 44310-60060 or equivalent) for pressure, flow, and noise

Benefits

Light, effortless steering – eliminates heavy or stiff feel, especially when parking or at low speeds
Stops whining, groaning, or fluid leaks – quieter operation and cleaner engine bay
Prevents steering box damage – consistent pressure reduces wear on the gear and rack
Restores factory performance – essential for safe towing, off-road control, and roadworthy compliance in NSW
Great for high-mileage rigs, work trucks, or resto projects – keeps your 70/80 Series steering smooth and reliable

Fitment Notes

Suitable for 4.2L 1HZ diesel models: HZJ75 / HZJ78 / HZJ79 (70/78/79 Series) and HDJ80 / HZJ80 (80 Series) – confirm chassis/engine code
Professional installation recommended – flush power steering fluid, replace reservoir filter (if equipped), and bleed system thoroughly
Use fresh ATF Dexron II/III or Toyota PSF – check for leaks after install and re-check fluid level
Inspect hoses, reservoir, and steering box while the pump is off – common to replace fluid/filter at the same time

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Frequently Asked Questions

What are the symptoms of a failing power steering pump on a 1HZ LandCruiser? +

The most unmistakable sign is a loud whirring, groaning, or whining mechanical noise from the engine bay that gets progressively louder when you accelerate or turn the steering wheel tightly. You may also notice the steering wheel suddenly feeling heavy, stiff, or tight during low-speed off-road tracks or parking maneuvers, dark contaminated hydraulic oil in the reservoir, or a visible power steering fluid leak pooling under the front corner of the engine block.

Which specific LandCruiser models and years does this pump fit? +

This replacement power steering pump is engineered to suit Toyota’s iconic 4.2-litre 6-cylinder diesel engine family. It serves as a direct bolt-on match for the naturally aspirated 1HZ engine as well as the early 12-valve factory turbo-diesel 1HD-T power plants. It perfectly fits classic workhorse configurations including the HZJ75 and HZJ79 utility models, alongside the HDJ80 and HZJ80 Wagon series.

Is this power steering pump driven by an engine accessory belt? +

No. Unlike many light-duty 4x4 setups that rely on external rubber V-belts or serpentine belts, the heavy-duty 1HZ and 1HD-T engine configurations utilize a robust, gear-driven power steering pump. The unit mounts flush to the rear face of the engine's timing gear housing and meshes directly with the internal gear drive loop, ensuring bulletproof hydraulic steering operation even during extreme outback water crossings.

Why should I flush out my old steering fluid when swapping this pump? +

When a hydraulic pump wears out, it generates microscopic metal shavings, degraded rubber particulates, and dark sludge that flows throughout the entire steering box circuit. If you install a fresh pump without thoroughly flushing the fluid lines and cleaning the reservoir reservoir bottle, that contamination will travel straight back into your new pump housing, scouring the precision internal vanes and tearing the main shaft oil seals.

What is the correct procedure for bleeding air from this hydraulic system? +

Proper execution during bleeding is vital to protect the pump from dry running. After bolting up the gear assembly and tightening the hydraulic oil lines, fill the reservoir with fresh, premium-grade automatic transmission fluid (ATF). Safely lift the vehicle's front axle so the tyres clear the ground completely. With the engine turned off, slowly cycle the steering wheel from full left lock to full right lock 20 to 30 times to bleed out air pockets. Check levels, then start the engine and let it idle smoothly while cycling the steering again until operations are dead silent.