Genuine Toyota Hose Ventilation Air Cleaner to Rocker Cover PCV HDJ

Genuine Toyota crankcase breather hose to suit 1HD-FTE engines in LandCruiser HDJ78 and HDJ79 models from 08/2001 onwards.

Connects the air cleaner to the rocker cover to maintain proper crankcase ventilation and engine performance.

Maintains correct crankcase ventilation on 1HD-FTE engines.

This genuine Toyota crankcase breather hose runs from the air cleaner to the rocker cover as part of the engine’s ventilation system.

Its role is to:

• Supply filtered air into the crankcase
• Maintain correct internal engine ventilation
• Support emissions control and engine efficiency

Over time these hoses can:

• Harden
• Crack
• Lose flexibility

When that happens, you may notice:

• Oil residue or mist around the engine bay
• Reduced ventilation efficiency
• General deterioration of the breather system

Replacing the hose restores proper airflow and maintains correct engine operation.

Vehicle Compatibility

• Toyota LandCruiser HDJ78
• Toyota LandCruiser HDJ79
• Build date: 08/2001 onwards
• Engine: 1HD-FTE 4.2L Turbo Diesel

Common Questions

Is this the same as the 1HZ breather hose?

No — this suits 1HD-FTE engines only.

What does this hose do?

Supplies filtered air into the crankcase as part of the ventilation system.

Will this fix oil leaks?

Not directly, but a damaged hose can affect ventilation and contribute to related issues.

Is this a genuine Toyota part?

Yes — direct OEM replacement with correct fit and durability.