Genuine Toyota No.5 Injector Pipe 1HZ LandCruiser HZJ70 73 75 80 (1990–1998)

Genuine Toyota injector pipe No.5 to suit 1HZ diesel engines.

High-pressure fuel line delivering diesel from injection pump to cylinder No.5 injector.

 

This is the No.5 high-pressure injector pipe used on Toyota 1HZ diesel engines.

 

It connects the injection pump to the No.5 injector and is responsible for delivering fuel at extremely high pressure for correct combustion.

 

Each pipe in the set is:

 

• Individually shaped for its cylinder
• Calibrated for correct length and flow
• Not interchangeable with other positions

 

 

Fuel injector pipes must maintain exact tolerances — even slight deformation or incorrect routing can affect engine performance. 

 

 

 

 

Important details

 

 

• Genuine Toyota part
• Cylinder No.5 only
• Sold as single pipe
• Must not be bent or modified
• Should be replaced if:
  
• Cracked
• Corroded
• Previously bent or stressed

 

 

 

 

 

Vehicle Compatibility

 

 

Engine:

 

• 1HZ 4.2L Diesel

 

 

Toyota LandCruiser:

 

• HZJ70
• HZJ73
• HZJ75
• HZJ80

 

 

Build range:

 

• Approx. 01/1990 to 05/1998

 

 

 

 

 

What it actually does

 

 

• Carries high-pressure fuel from pump to injector
• Ensures correct fuel timing and delivery
• Maintains engine efficiency and smooth running

 

 

A faulty pipe can cause:

 

• Fuel leaks
• Misfire or rough running
• Hard starting
• Air ingress into system

 

 

Injector pipes are critical fuel system components and must remain structurally sound and correctly installed. 

 

 

 

 

Common Questions

 

 

Can I swap injector pipes around?

No — each pipe is specific to its cylinder.

 

Can it be repaired if bent?

Not recommended — replace only.

 

How many pipes are there?

6 total (one per cylinder).

 

When should it be replaced?

If leaking, damaged, or during fuel system overhaul.