Brake Shoe Set K4458 K4425 For ISUZU ELF NPR NKR Truck 300x75mm Rear Axle

The Brake Shoe Set (Model Numbers: K4458 / K4425) is a premium-quality, direct replacement brake component designed specifically for ISUZU ELF, NPR, and NKR series light- and medium-duty trucks equipped with 4JB1, 4HF1, 4HG1, and 4HK1 diesel engines. This brake shoe set — also known as a brake lining set or drum brake shoe assembly — is a critical part of the drum brake system. It is mounted inside the brake drum and, when the brakes are applied, is pushed outward by the wheel cylinder or expander to contact the rotating brake drum. The friction generated between the brake shoe lining and the drum converts the vehicle's kinetic energy into heat, slowing or stopping the truck safely and reliably under all load conditions.

• OE Quality: Manufactured to strict ISUZU dimensional and material specifications for perfect fit and function.
• High Friction Coefficient: Premium friction lining ensures strong, consistent braking performance.
• Excellent Heat Resistance: Withstands high braking temperatures without fading or deterioration.
• Durable Construction: High-strength steel backing plate resists distortion and cracking under heavy loads.
• Precision-Formed Radius: Matches 300mm brake drum curvature for full contact and uniform wear.
• Restores Braking Performance: Eliminates brake noise, reduced stopping power, and pedal pulsation caused by worn shoes.
• Direct Replacement: Matches OE shoe dimensions and mounting configuration.
• Long Service Life: Engineered for commercial truck applications.
• Essential Safety Component: Critical for maintaining reliable braking performance and vehicle safety.
• Pair Ordering Recommended: Replace both brake shoe sets at the same time for balanced braking.

This brake shoe set is specifically designed for ISUZU light- and medium-duty trucks and commercial vehicles. Common applications include:

• ISUZU ELF (N-Series — NKR55, NKR57, NKR58, NKR63, NKR66, NKR69, NKR81, NKR85)
• ISUZU NPR (NPR57, NPR58, NPR66, NPR70, NPR75)
• ISUZU NHR, NKS, NLR, NMR series (as applicable)

• ISUZU 4JB1 — 2.8L Inline-4 Diesel
• ISUZU 4HF1 — 4.3L Inline-4 Diesel
• ISUZU 4HG1 — 4.3L Inline-4 Diesel
• ISUZU 4HK1 — 5.2L Inline-4 Turbo Diesel
• ISUZU 4BD1 — 3.9L Inline-4 Diesel
• ISUZU 4BE1 — 3.6L Inline-4 Diesel
• ISUZU 4BG1 — 4.3L Inline-4 Diesel

Professional mechanic installation is essential for safety:

1. Ensure vehicle is safely raised — Use appropriate jack stands or a lift to support the vehicle; remove the wheel.
2. Remove the brake drum — Remove the brake drum to access the brake shoes.
3. Remove the old brake shoes — Remove the return springs, hold-down springs, and adjuster components; note their positions.
4. Clean the backing plate — Thoroughly clean the backing plate and all hardware; remove dust and debris.
5. Install the new brake shoes — Position the new brake shoes on the backing plate; secure with hold-down springs.
6. Reinstall springs and hardware — Reinstall return springs, adjuster, and other components in the correct order.
7. Adjust brake shoe clearance — Adjust the shoe-to-drum clearance to manufacturer specification.
8. Reinstall the brake drum — Install the brake drum and retaining screws.
9. Reinstall the wheel — Install the wheel and torque lug nuts to specification.
10. Bleed the brake system — If the wheel cylinder was disconnected, bleed the brake system.
11. Check brake operation — Pump the brake pedal several times to seat the shoes; verify firm pedal feel.
12. Road test — Test the brakes at low speed in a safe area; verify proper stopping performance and no abnormal noise.

• Material Verification: Confirms backing plate steel and friction lining composition meet ISUZU strength and heat resistance specifications.
• Dimensional Inspection: Shoe dimensions (300mm × 75mm), radius, and mounting hole locations verified within OEM tolerances.
• Friction Coefficient Testing: Sample tested to ensure consistent friction performance and heat resistance.
• Bond Strength Testing: Friction lining bond strength verified for secure attachment.
• Hardness Testing: Backing plate hardness tested for proper strength and wear resistance.
• Visual Inspection: 100% checked for cracks, lining defects, or manufacturing flaws.
• Packaged Safely: Protected and packaged to prevent 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