This comb switch (turn signal, wiper, and light control) is designed for Isuzu NPR and Isuzu NPR-HD manufactured between 1992 and 2008, equipped with the 4HK1 5.2L diesel engine.

The comb switch integrates multiple functions in a single steering column-mounted control, including the following:

• Turn signal operation

• Windshield wiper control (low, high, intermittent)

• Headlight and parking light control

A faulty comb switch can cause the following:

• Non-functional turn signals or hazard lights

• Intermittent or non-working wipers

• Headlights or parking lights failing to operate

• Unresponsive dashboard signals

• Clicking or electrical faults in the steering column

Replacing a worn or damaged OEM comb switch restores proper control of turn signals, wipers, and lights, ensuring driver safety and legal compliance. Designed to OEM specifications, it installs directly onto the steering column and aligns with existing wiring harnesses.

Key Features

• OEM comb switch for NPR & NPR-HD

• Controls turn signals, wipers, and headlights

• Fits 4HK1 5.2L diesel engines

• Steering column-mounted, direct-fit replacement

• Durable construction for long-term reliability

• Restores all dashboard control functions

Vehicle Compatibility (1992–2008)

Fits Isuzu Medium-Duty Trucks:

• Isuzu NPR

• Isuzu NPR-HD

Engine: 4HK1 5.2L Diesel

Condition: New OEM
Position: Steering column multifunction comb switch

Common Signs You Need a New Comb Switch

• Turn signals fail to activate

• Wipers operate intermittently or not at all

• Headlights or parking lights do not work

• Steering column clicking or unusual noise

• Electrical dashboard errors

  Frequently Asked Questions (FAQ)

  Which trucks does this comb switch fit?

  This comb switch fits Isuzu NPR and NPR-HD trucks from 1992 to 2008 with the 4HK1 5.2L diesel engine.

  Is this an OEM replacement?

  Yes, this is a new OEM-style comb switch manufactured to factory specifications for proper fit and function.

  What functions does this comb switch control?

  It controls turn signals, windshield wipers, headlights, and parking lights, all from the steering column.

  Is professional installation recommended?

  Yes, professional installation ensures correct alignment with wiring harnesses and safe operation of all functions.