Front Brake Wheel Cylinder 8-97139821-0 8971398210 For ISUZU NPR 4HF1 Engine

The Front Brake Wheel Cylinder (OEM Numbers: 8-97139821-0 / 8971398210) is a premium-quality hydraulic brake component designed specifically for ISUZU NPR series medium-duty trucks equipped with 4HF1 diesel engines. This precision-engineered component converts hydraulic pressure from the master cylinder into mechanical force, pushing brake shoes against the drum to ensure safe and effective braking.

• OE Quality: Manufactured to strict ISUZU dimensional and material specifications
• Precision-Honed Bore: Smooth, accurate bore ensures consistent piston movement
• Durable Seals: High-quality brake fluid-resistant seals prevent leaks
• Corrosion-Resistant Housing: Treated housing resists moisture and road salt
• Restores Braking Performance: Eliminates spongy pedal feel and reduced stopping power
• Direct Replacement: Matches OE cylinder dimensions and connections
• Even Brake Application: Ensures balanced, pull-free braking when replaced in pairs

This front brake wheel cylinder is specifically designed for:

• ISUZU NPR Medium-Duty Trucks
• ISUZU 4HF1 Engine Specifications:
  • 4-Cylinder, Inline Diesel
  • Displacement: 4.3L
  • Application: Medium-duty trucks and commercial vehicles

1. Safely raise vehicle and remove front wheel
2. Remove brake drum to access wheel cylinder and brake shoes
3. Carefully remove brake shoe assembly, noting spring and hardware positions
4. Disconnect brake fluid line and cap to prevent fluid loss
5. Unbolt old wheel cylinder from backing plate
6. Inspect backing plate for damage, wear, or corrosion
7. Install new wheel cylinder and torque mounting bolts to specifications
8. Reconnect brake line and torque fitting to specification
9. Reinstall brake shoe assembly with new springs and hardware
10. Adjust brake shoe-to-drum clearance to manufacturer specification
11. Reinstall brake drum and ensure proper fit
12. Bleed brake system starting with wheel furthest from master cylinder
13. Check all connections for fluid leaks
14. Test brake pedal for firm feel and proper height
15. Conduct road test at low speed to verify stopping performance

• Material verification for durability and brake fluid compatibility
• Bore dimensional inspection within OEM tolerances
• Seal integrity testing for leak-proof operation
• Piston fit verification for smooth operation
• Pressure testing for consistent hydraulic output
• 100% visual inspection for defects and damage
• Safe packaging to prevent transit damage

• 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