This OEM clutch switch is designed for Isuzu NPR, Isuzu NPR-HD, and Isuzu NQR trucks manufactured between 1994 and 2016, equipped with 4BD2 3.9L or 4HE1 4.8L diesel engines.

The clutch switch (also known as the clutch pedal position switch or starter interlock switch) is mounted near the clutch pedal assembly. It ensures the engine starts only when the clutch pedal is fully depressed and may also interface with cruise control or ECM inputs depending on configuration.

A faulty clutch switch can cause the following:

• Engine not starting (no crank condition)

• Intermittent starting problems

• Cruise control malfunction

• Check engine light (in some configurations)

• Improper clutch pedal signal to ECM

Replacing a defective switch restores correct clutch interlock operation and ensures safe vehicle starting procedures. This unit is manufactured to OEM specifications for proper electrical connectivity, durability, and precise fitment.

Key Features

• New OEM clutch pedal switch

• Fits Isuzu NPR, NPR-HD, and NQR (1994–2016)

• Compatible with 4BD2 3.9L and 4HE1 4.8L diesel engines

• Ensures proper starter interlock function

• Direct-fit electrical connector

• Durable internal contact design

Vehicle Compatibility (1994–2016)

Fits Isuzu Medium-Duty Trucks:

• Isuzu NPR

• Isuzu NPR-HD

• Isuzu NQR

Engines:

• 4BD2 3.9L Diesel

• 4HE1 4.8L Diesel

Condition: New OEM
Position: Clutch pedal / starter interlock switch

Common Signs You Need a New Clutch Switch

• The vehicle will not start unless pedal is pressed multiple times

• No crank condition despite good battery

• Cruise control not disengaging properly

• Intermittent starting issues

• Fault codes related to clutch position

  Frequently Asked Questions (FAQ)

  Which trucks does this clutch switch fit?

  This switch fits Isuzu NPR, NPR-HD, and NQR trucks from 1994–2016 with 4BD2 3.9L or 4HE1 4.8L diesel engines.

  What does the clutch switch do?

  The clutch switch ensures the engine only starts when the clutch pedal is fully depressed and may also provide input to cruise control or engine management systems.

  Is this an OEM replacement?

  Yes, this is a new OEM clutch switch manufactured to factory specifications for fit and performance.

  Is installation complicated?

  Installation is straightforward, but proper alignment and adjustment are important. Professional installation is recommended for best results.