Inner Rear Hub Oil Seal with OE Fitment Durable NBR/FKM Rubber and Precision Sealing Lip for Isuzu NPR ELF 4HK1

The Inner Rear Hub Oil Seal (OEM Numbers: 8-94336316-0 / 8943363160) is a premium-quality, direct replacement sealing component designed for the rear wheel hub of Isuzu NPR and ELF series trucks equipped with the 4HK1 diesel engine.

Inner rear hub oil seal prevents lubricant leakage from the rear wheel hub assembly and blocks contaminants (dirt, water) from entering the bearing cavity. Essential for rear axle reliability on Isuzu NPR/ELF 4HK1 trucks.

• OE Fitment: Manufactured to Isuzu dimensional and material specifications for a perfect press-fit and leak-free seal
• Precision Sealing Lip: Computer-designed lip geometry with consistent garter spring tension ensures reliable sealing even under shaft runout
• Durable Rubber Compound: NBR (nitrile) rubber resists gear oil, heat (up to 120°C), and aging. Optional FKM for higher temperatures
• Rigid Metal Case: Carbon steel case prevents deformation during installation and maintains interference fit
• Secondary Dust Lip (select designs): Provides additional protection against dirt and water ingress
• Prevents Brake Contamination: Stops oil from reaching brake drums/shoes, preventing brake fade and safety hazards
• Extends Bearing Life: Retains lubricant and excludes contaminants, doubling wheel bearing service life
• Cost-Effective: Affordable seal prevents expensive axle and brake repairs
• Direct Replacement: Matches OE dimensions - no modification required

This inner rear hub oil seal is specifically designed for Isuzu NPR and ELF trucks with 4HK1 engine.

• ISUZU NPR (NPR59, NPR66, NPR70, NPR71, NPR75, etc.)
• ISUZU ELF (Japanese market name for N-series)
• ISUZU NQR, NPS (select models with same rear axle - verify)

• 4-Cylinder, Inline Diesel, DOHC, Common Rail
• Displacement: 5.2L (5193cc)

Installation steps (typical for inner rear hub seal):

1. Safely lift vehicle and remove rear wheels - Support on jack stands
2. Remove axle shafts (for full-floating axle) or remove hub/drum assembly
3. Remove old inner seal - Use a seal puller or pry bar carefully to avoid damaging hub bore
4. Clean hub bore thoroughly - Remove old sealant, rust, and debris. Inspect bore for scratches or burrs
5. Inspect axle spindle (or housing journal) - Check for wear groove. If a groove is present (>0.5mm deep), install a Speedi-Sleeve or replace component
6. Lubricate new seal lips - Apply a thin film of clean gear oil or bearing grease to the sealing lip
7. Position new seal - Place seal squarely into hub bore with lip facing inward (toward bearing cavity)
8. Drive seal evenly - Use a seal driver that contacts the metal case (not the rubber lip). Tap gently until seal is flush or slightly recessed per OE spec
9. Reinstall hub, bearings, axle shafts - Adjust bearing preload as per service manual
10. Refill axle with gear oil - Check level after road test
11. Inspect for leaks - After test drive, check inside brake drum for oil residue

• Material Verification: Rubber compound tested for hardness (Shore A 70-80), tensile strength, and oil swell (ASTM D471)
• Dimensional Inspection: ID, OD, width, and lip geometry verified against OE blueprints using optical comparator
• Spring Tension Test: Garter spring force measured to ensure consistent lip radial load
• Leak Test (Dynamic): Sample seals tested on a rotating shaft simulator with hot oil to verify no leakage
• Visual Inspection: 100% checked for flash, cracks, missing spring, or case deformation
• Packaged Safely: Seals individually wrapped in plastic or sealed bags to prevent dust and ozone 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

For pricing, availability, or bulk purchase of the Inner Rear Hub Oil Seal 8-94336316-0 For Isuzu NPR ELF 4HK1 8943363160 Isuzu Truck Parts, please contact our sales team for a competitive quote and expert technical support.