This oil pipe to vacuum pump is a genuine OEM replacement designed for:

• Isuzu NPR

Model Years: 1986–1997
Engines:

• 4BD1 3.9L Diesel

• 4BD2 3.9L Diesel

The oil pipe delivers engine oil to the vacuum pump to ensure proper lubrication and cooling. The vacuum pump is critical for supplying vacuum assist to the brake booster system, especially in diesel applications where manifold vacuum is not naturally generated.

A damaged or leaking oil pipe can lead to:

• Oil leaks around vacuum pump area

• Insufficient lubrication of pump components

• Premature vacuum pump wear

• Reduced brake assist performance

This OEM oil pipe is manufactured to factory specifications for correct routing, fitting alignment, and sealing performance, ensuring leak-free operation and long service life.

Key Features

• Genuine New OEM oil pipe

• Fits 1986–1997 Isuzu NPR

• Compatible with 4BD1 3.9L and 4BD2 3.9L diesel engines

• Supplies lubrication to vacuum pump

• Prevents oil leaks and pump damage

• Direct replacement fit

Vehicle Compatibility (1986–1997)

Fits:

• Isuzu NPR

Engines:

• 4BD1 3.9L Diesel

• 4BD2 3.9L Diesel

Condition: New OEM
Part Type: Oil Pipe / Vacuum Pump Oil Feed Line
System: Engine Lubrication / Brake Vacuum System

Common Signs You Need Replacement

• Oil leak near vacuum pump

• Visible cracks or corrosion on pipe

• Low oil residue around fittings

• Premature vacuum pump wear

• Brake assist performance issues

  Frequently Asked Questions (FAQ)

  What is the function of this oil pipe?

  It supplies engine oil to lubricate the vacuum pump, ensuring proper operation and durability.

  Which engines does this fit?

  This OEM oil pipe fits Isuzu NPR models (1986–1997) equipped with 4BD1 or 4BD2 3.9L diesel engines.

  Can a leaking oil pipe affect braking?

  Yes. If the vacuum pump is not properly lubricated, it may fail, reducing brake booster vacuum assist.

  Is this a direct OEM replacement?

  Yes, this pipe is manufactured to factory specifications for proper fit and sealing.