Precision-Honed Hydraulic Rear Brake Wheel Cylinder with High-Quality Brake Fluid-Resistant Seals for Direct OEM Replacement

The Rear Brake Wheel Cylinder (OEM Numbers: 8-97358878-0 / 8973588780) is a premium-quality, direct replacement braking system component designed specifically for ISUZU NPR series medium-duty trucks equipped with the 4HK1 diesel engine. This precision-engineered wheel cylinder is a critical component of the vehicle's rear drum brake system, mounted inside each rear brake drum.

• 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 700P - Medium-Duty Trucks

• 4-Cylinder, Inline Diesel
• Displacement: 5.2L (5193cc)
• Turbocharged, Intercooled
• Common Rail Fuel Injection
• Widely used in NPR and 700P series trucks

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

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 8-97358878-0 For ISUZU NPR 4HK1 Truck 8973588780, please contact our sales team for a competitive quote and expert technical support.