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

Precision-engineered front brake wheel cylinder converts hydraulic pressure into mechanical force, actuating brake shoes for reliable stopping power in ISUZU NPR trucks with 4HK1 diesel engines.

The Front Brake Wheel Cylinder (OEM Numbers: 8-98081291-0 / 8980812910) is a premium-quality, direct replacement braking system component designed specifically for ISUZU NPR series medium-duty trucks equipped with the 4HK1 diesel engine.

• 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 front 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

• Front 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 front axle and support on jack stands
2. Remove the front wheels - Remove the front wheels for access to the brake assembly
3. Remove the brake drum - Carefully remove the front 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 front 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