Corrosion-Resistant Rear Brake Wheel Cylinder with EPDM Rubber Seals and Precision-Machined Bore for Isuzu NKR NPR 4BD1 4HF1

The Rear Brake Wheel Cylinder (Right) with OEM numbers 8-97139822-0 / 8971398220 is a premium-quality hydraulic component designed as a direct replacement for the rear drum brake system of Isuzu NKR and NPR series medium-duty trucks equipped with 4BD1 or 4HF1 diesel engines.

• OE Quality: Manufactured to Isuzu dimensional and material specifications for perfect fit and reliable braking
• Right Side Specific: Precisely engineered for the right rear wheel position
• Precision-Machined Bore: Smooth honed cylinder bore ensures consistent piston movement and long seal life
• Corrosion-Resistant: Body with anti-corrosion treatment for durability
• High-Quality Rubber Seals: EPDM cups and seals resist DOT 3/DOT 4 brake fluid, heat, and aging
• Dust Boot Included: Protects the bore from dirt and moisture
• Leak-Tested: Each cylinder is hydraulically tested for leakage before packaging
• Cost-Effective: Affordable alternative to genuine OEM without compromising safety

This rear brake wheel cylinder (right side) is specifically designed for Isuzu NKR and NPR trucks with 4BD1 or 4HF1 engines.

• ISUZU NKR (NKR55, NKR57, NKR59, NKR71, etc.)
• ISUZU NPR (NPR59, NPR66, NPR70, NPR71, NPR75, etc.)

Typical installation steps for rear wheel cylinder replacement:

1. Safely lift and support the vehicle - remove the right rear wheel and brake drum
2. Clean the brake assembly - use brake cleaner to remove dust and debris
3. Disconnect the brake line - from the back of the old wheel cylinder using a flare nut wrench. Cap the line
4. Remove the old wheel cylinder - unbolt the two mounting bolts from the backing plate
5. Clean the backing plate mounting surface - remove old gasket/sealant
6. Compare new cylinder with old - verify bore size, bolt spacing, and port orientation
7. Install new wheel cylinder - apply a thin film of brake grease to the mounting flange. Bolt to backing plate. Torque bolts to specification (typically 10-15 Nm)
8. Reconnect the brake line - hand-start, then tighten with flare nut wrench. Do not cross-thread
9. Reinstall brake shoes and hardware - ensure pushrods engage properly
10. Reinstall brake drum and wheel - adjust shoes if needed
11. Bleed the brake system - start from the wheel farthest from the master cylinder
12. Check for leaks - inspect the new cylinder and line fitting
13. Test drive - ensure proper braking and no pulling

• Material Verification: Body alloy and seal compound tested
• Dimensional Inspection: Bore diameter, bolt hole spacing, and thread pitch verified against OE samples
• Leak Test (Hydraulic): Each cylinder pressurized to ensure no internal or external leakage
• Piston Movement Test: Smooth operation confirmed over full stroke
• Thread Inspection: Inlet and bleeder threads checked with GO/NO-GO gauges
• Visual Inspection: 100% checked for casting defects, scratches, or damaged ports
• Packaged Safely: Cylinder sealed in plastic bag, boxed with foam protection

• 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 R 8-97139822-0 For Isuzu NKR NPR 4BD1 4HF1 8971398220, please contact our sales team for a competitive quote and expert technical support.