The rear brake wheel cylinder is a vital component of the braking system in Isuzu NPR trucks. It applies hydraulic pressure to the brake shoes, ensuring effective braking and safe vehicle operation.
A worn or damaged wheel cylinder can lead to brake fluid leaks, reduced braking performance, or uneven brake application, compromising truck safety. Installing a high-quality OEM wheel cylinder restores optimal braking efficiency and prevents further brake system damage.
This 1-1/16″ left-hand rear brake cylinder is compatible with Isuzu NPR 4HE1 4.8L trucks manufactured between 1998 and 2003 and is built for heavy-duty reliability under commercial truck operating conditions.
Key Features & Benefits
• OEM-quality rear brake wheel cylinder for Isuzu NPR
• Cylinder diameter: 1-1/16″ (LH)
• Ensures reliable hydraulic pressure and braking efficiency
• Prevents brake fluid leaks and uneven brake application
• Direct replacement for Isuzu NPR 4HE1 4.8L (1998-2003)
• Durable construction for long-lasting performance in heavy-duty trucks
• Maintains vehicle safety and compliance with braking standards
Vehicle Applications
Compatible with the following Isuzu trucks:
• Isuzu NPR (1998-2003)
Engine Compatibility: 4HE1 4.8L Diesel Engine
Frequently Asked Questions
1. What is a rear brake wheel cylinder?
The rear brake wheel cylinder applies hydraulic pressure to the brake shoes, ensuring proper rear braking performance in drum brake systems.
2. Which vehicles are compatible?
This cylinder fits Isuzu NPR trucks with 4HE1 4.8L engines manufactured from 1998 to 2003.
3. What are signs of a worn wheel cylinder?
Symptoms include brake fluid leaks, reduced braking efficiency, uneven braking, or soft brake pedal feel.
4. Is this an OEM replacement part?
Yes, this rear brake wheel cylinder is manufactured to OEM specifications for proper fit and reliable operation.
5. Why is the wheel cylinder important?
It ensures safe braking, prevents brake system damage, and maintains proper hydraulic pressure to the rear brakes.
6. Is installation difficult?
Installation requires basic mechanical knowledge and standard brake system tools. It is a direct replacement for the left-hand rear cylinder.




