Fast Idle Q-Control Relay 12V 5 Pins for Isuzu 6HE1 / 4BD2 Engine
,

Relay Fast Iddle Q-Control 5 Pins 12V | Isuzu 6HE1 / 4BD2 Engine

Add to wishlist
Compare

Durable Fast Idle Q-Control Relay (12V, 5 Pins) for Isuzu 6HE1 and 4BD2 engines. Designed for precise idle speed control and consistent cold-start performance in diesel applications. Built to OEM standards for long-lasting reliability.

$31.90

Please provide VIN / ESN for identification of correct parts

Compare

 

The Relay Fast Idle Q-Control (12V, 5 Pins) is a genuine replacement component designed for Isuzu 6HE1 and 4BD2 engines. This relay controls the fast idle function, adjusting the engine’s idle speed automatically during cold starts or when additional electrical load is applied.

Crafted to OEM electrical standards, this relay ensures consistent voltage delivery, reliable switching performance, and protection against overheating or short-circuits. It’s ideal for Isuzu NPR, NQR, and ELF diesel trucks, providing seamless integration with factory wiring systems.

Features & Benefits:

  • OEM-quality relay for Isuzu 6HE1 / 4BD2 engines

  • 5-pin configuration for accurate electrical control

  • Designed for 12V diesel electrical systems

  • Ensures optimal idle speed adjustment during cold starts

  • Reduces vibration and fuel consumption at idle

  • Corrosion-resistant terminals for extended lifespan

  • Plug-and-play compatibility with factory harness

Applications:

  • Isuzu 6HE1 Engine

  • Isuzu 4BD2 Engine

  • Compatible with Isuzu NPR, NQR, ELF Trucks

  • Suitable for industrial and heavy-duty diesel engines with Q-control systems

Frequently Asked Questions (FAQ)

What is a Fast Idle Q-Control Relay used for in an Isuzu engine?

The Fast Idle Q-Control Relay regulates engine idle speed during cold starts or high-load electrical conditions to ensure smooth operation and prevent stalling.

Is this relay compatible with both Isuzu 6HE1 and 4BD2 engines?

Yes, this 12V 5-pin relay is designed for use with Isuzu 6HE1 and 4BD2 engines, including NPR, NQR, and ELF series trucks.

How can I tell if my Q-Control relay is faulty?

Common signs include unstable idle speed, difficulty during cold starts, engine stalling, or lack of idle adjustment when electrical load increases.

Is this relay plug-and-play?

Yes, it features a 5-pin design for direct installation into the factory wiring harness with no modifications required.

Can this relay be used in other Isuzu models?

It’s primarily made for 6HE1 and 4BD2 engines, but it may fit other Isuzu diesel applications that use similar Q-control systems. Always confirm compatibility before installation.

What voltage does this relay operate on?

This Q-Control relay operates on a standard 12V electrical system used in most Isuzu diesel trucks.

 

 

Relay Fast Iddle Q-Control 5 Pins 12V | Isuzu 6HE1 / 4BD2 Engine

 

OE Replacement: Not Available

 

Fits Following: NPR NQR NRR / 4BD2 / 6HE1

 

Year: 1994-2009

SKU: IEK-668 Categories: , Tags: , , , , , , , , , , , , , ,

Related products

Select at least 2 products
to compare