Front Hub Oil Seal Single-Lip with Garter Spring and Nitrile Rubber (NBR) Sealing Lip OEM Standard Direct Replacement for Isuzu NPR NKR77

Precision-engineered front hub oil seal prevents lubricant leakage and contamination ingress, protecting wheel hub bearings in Isuzu medium-duty trucks for reliable axle performance.

The Front Hub Oil Seal (OEM Numbers: 8-94248117-1 / 8942481171) is a premium-quality, direct replacement sealing component designed specifically for ISUZU NPR and NKR series medium-duty trucks equipped with 4JH1, 4HK1, 4HF1, and 4HG1 diesel engines.

• OE Quality: Manufactured to strict ISUZU dimensional and material specifications for perfect fit and function
• Precision Sealing Lip: Designed to maintain consistent contact pressure for reliable sealing
• Garter Spring Design: Ensures lip retains tension over time, compensating for minor wear and temperature changes
• Durable Material: High-grade NBR rubber provides excellent resistance to oil, grease, heat, and weathering
• Rust-Resistant Casing: Metal casing is coated or treated to resist corrosion
• Contaminant Exclusion: Prevents water, dust, and dirt from entering the wheel bearing cavity
• Lubricant Retention: Eliminates hub oil or grease leakage, preventing bearing starvation
• Extends Bearing Life: Proper sealing significantly increases wheel bearing service intervals
• Direct Replacement: Simple installation during brake or axle service
• Cost-Effective: Prevents costly wheel bearing and spindle damage

This front hub oil seal is specifically designed for ISUZU medium-duty trucks. Common applications include:

• ISUZU NPR66 - Medium-Duty Trucks
• ISUZU NPR70 - Medium-Duty Trucks
• ISUZU NPR75 - Medium-Duty Trucks
• ISUZU NKR77 - Light/Medium-Duty Trucks

• 4JH1 - 3.0L Diesel (NKR/NPR)
• 4HK1 - 5.2L Diesel (NPR/NQR)
• 4HF1 - 4.3L Diesel (NPR66)
• 4HG1 - 4.6L Diesel (NPR)

• Front wheel hub (steering axle)
• Suitable for both left and right hub positions (identical part)

1. Remove the wheel and hub - Safely lift the vehicle and remove the front wheel, brake caliper, and hub assembly
2. Remove the old seal - Carefully pry out the old seal using a seal puller or suitable tool, avoiding damage to the hub bore
3. Inspect hub bore and spindle - Check for scoring, corrosion, or wear; replace or repair if damaged
4. Clean thoroughly - Clean the hub bore and spindle surface with solvent; ensure no debris remains
5. Lubricate the seal lip - Apply a thin layer of clean wheel bearing grease to the sealing lip
6. Install the new seal - Use a seal driver or appropriate sized socket to press the seal squarely into the hub bore until fully seated
7. Pack bearings with grease - Repack the wheel bearings with fresh grease (if grease-type hub) or fill with oil as per specifications
8. Reinstall hub - Install the hub assembly, ensuring the seal lip rides smoothly on the spindle
9. Adjust bearing preload - Adjust wheel bearing nut to manufacturer's torque specification
10. Test for leaks - Road-test the vehicle and inspect for any grease or oil leakage after the first drive

• Material Verification: Confirms rubber compound and metal composition meet OE specifications
• Dimensional Inspection: Inner diameter, outer diameter, and width verified against OEM tolerances
• Lip Geometry Check: Sealing lip profile and angle inspected for proper sealing performance
• Garter Spring Tension: Spring force verified to ensure consistent lip pressure
• Hardness Testing: Rubber durometer (hardness) tested to OEM standards
• Visual Inspection: 100% checked for cracks, flash, or molding defects
• Packaged Safely: Individually sealed 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