Rear Brake Wheel Cylinder with Precision-Honed Hydraulic Cylinder and High-Quality Brake Fluid-Resistant Seals for ISUZU NPR Truck

Precision-engineered rear brake wheel cylinder converts hydraulic pressure into mechanical force, actuating brake shoes for reliable stopping power in ISUZU NPR medium-duty trucks.

The Rear Brake Wheel Cylinder (OEM Numbers: 8-97332225-1 / 8973322251) is a premium-quality, direct replacement braking system component designed specifically for ISUZU NPR series medium-duty trucks. This precision-engineered wheel cylinder is a critical component of the vehicle's rear drum brake system, mounted inside each rear brake drum. It is responsible for converting hydraulic pressure from the master cylinder into mechanical force that pushes the brake shoes against the brake drum, generating the friction needed to slow and stop the vehicle safely.

• OE Quality: Manufactured to strict ISUZU dimensional and performance specifications for perfect fit and function
• Precision Honed Bore: Ensures smooth piston travel and consistent hydraulic pressure
• Durable Construction: High-quality cast iron/aluminum housing resists corrosion and wear
• Reliable Seals: Brake fluid-resistant seals prevent leaks and maintain hydraulic pressure
• Restores Braking Performance: Eliminates reduced stopping power, brake pull, and drag caused by faulty cylinders
• Ensures Balanced Braking: Proper wheel cylinder function maintains even brake force distribution
• Direct Replacement: Simple installation during brake system service
• Long Service Life: Engineered for reliability in demanding commercial applications
• Critical Safety Component: Essential for safe vehicle operation
• Cost-Effective Maintenance: Prevents expensive brake system repairs and ensures compliance with safety regulations

This rear brake wheel cylinder is specifically designed for ISUZU medium-duty trucks. Common applications include:

• ISUZU NPR - Medium-Duty Trucks
• ISUZU NPR66 / NPR70 / NPR75 - Medium-Duty Trucks
• ISUZU NQR - Medium-Duty Trucks
• ISUZU ELF (select models)
• ISUZU NKR (select models)

• Various ISUZU diesel engine configurations including 4HK1, 4HF1, 4HG1, 4HE1, and 4JB1
• Verify compatibility with your vehicle's specific powertrain

• Rear drum brake system
• Compatible with standard ISUZU hydraulic brake configurations

Professional installation required. Brake system safety is critical:

1. Raise and secure the vehicle - Safely lift the rear axle and support on jack stands
2. Remove the rear wheels - Remove the rear wheels for access to the brake assembly
3. Remove the brake drum - Carefully remove the rear brake drum
4. Inspect brake shoes and drums - Check brake shoes and drums for wear or damage; replace if necessary
5. Disconnect brake line - Carefully disconnect the brake fluid line from the wheel cylinder
6. Remove the old wheel cylinder - Unbolt and remove the old wheel cylinder from the backing plate
7. Clean the backing plate - Clean the backing plate mounting surface and surrounding area
8. Prepare the new wheel cylinder - Inspect the new cylinder and verify it matches the original
9. Install the new wheel cylinder - Position the new cylinder and secure with mounting bolts
10. Reconnect brake line - Reconnect the brake fluid line to the new wheel cylinder
11. Reinstall brake shoes and drum - Reinstall the brake shoes and drum assembly
12. Reinstall the wheel - Reinstall the rear wheel
13. Bleed the brake system - Bleed the brake system to remove all air from the lines
14. Check brake fluid level - Check and top up brake fluid in the master cylinder reservoir
15. Check pedal feel - Test the brake pedal for proper feel and travel
16. Test operation - Test drive the vehicle at low speed to verify proper braking performance
17. Check for leaks - Inspect the wheel cylinder and all connections for fluid leakage
18. Re-torque wheel nuts - Re-torque wheel nuts after the test drive

• Material Verification: Confirms housing and seal materials meet OE specifications
• Dimensional Inspection: Bore size, mounting dimensions, and port positions verified against OEM tolerances
• Leakage Testing: 100% pressure-tested for internal and external fluid leakage
• Piston and Seal Inspection: Seal integrity and piston smoothness verified for reliable operation
• Surface Finish Inspection: Machined surfaces checked for proper finish
• Visual Inspection: 100% checked for casting defects, machining flaws, or damage
• Packaged Safely: Protected and securely packaged to prevent contamination and damage during transit

• Neutral export packing or customized packaging available
• Carton or wooden case for safe transportation
• Fast delivery for stock items
• Shipping by Express Air or Sea

For pricing, availability, or bulk purchase of the Rear Brake Wheel Cylinder 8-97332225-1 For ISUZU NPR Truck 8973322251 Truck Parts, please contact our sales team for a competitive quote and expert technical support.