ISUZU NKR55 Outer Rear Hub Oil Seal Dual-Lip Design NBR Material OEM Fit 46*94.5*8 mm Wheel Hub Seal
| Inner Diameter: | 46 Mm | Seal Type: | Dual-Lip, Metal Case |
| Height / Thickness: | 8 Mm | Net Weight: | 0.06 Kg |
| Outer Diameter: | 94.5 Mm | Material: | NBR (Nitrile Butadiene Rubber) |
| Engine Compatibility: | 4JB1 (2.8L, 4-cylinder, OHV, DI) | Position: | Rear Axle — Outer Hub |
| High Light: | Dual-Lip Design Outer Rear Hub Oil Seal,NBR Material Wheel Hub Seal,OEM Fit 46*94.5*8 mm Rear Axle Oil Seal |
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Outer Rear Hub Oil Seal 8-94336315-2 8943363152 for ISUZU NKR55 NLR85 NMR85 100P 600P 4JB1 — Verified OEM Fit 46*94.5*8 mm NBR Wheel Hub Seal
The Outer Rear Hub Oil Seal with OEM numbers 8-94336315-2 and 8943363152 is a verified direct-fit replacement for ISUZU NKR55 / NLR85 / NMR85 / NMR55 / 100P / 600P / NHR light trucks equipped with the 4JB1 diesel engine. This oil seal is a critical rear wheel hub sealing component, responsible for retaining hub lubrication and preventing dirt, water, and debris from entering the outer wheel bearing assembly to ensure smooth bearing operation and extended component life.
The outer rear hub oil seal is installed in the rear wheel hub assembly, creating a dynamic seal between the rotating hub and the stationary axle housing. It retains gear oil and grease within the outer wheel bearing cavity while preventing external contaminants from entering. The dual-lip design features a primary sealing lip that maintains contact with the hub surface under spring tension, and a secondary dust lip that blocks water, mud, and debris from reaching the primary seal. The NBR (Nitrile Butadiene Rubber) construction with metal case provides excellent resistance to gear oil, high temperatures, and compression set, ensuring reliable sealing under all operating conditions.
Replace the outer rear hub oil seal when any of these symptoms appear:
- Gear oil leakage at the rear wheel hub — visible oil traces on the outer wheel or brake drum area
- Wheel bearing noise or vibration — oil loss and contaminant entry cause accelerated bearing wear, producing growling or rumbling noises from the rear axle
- Brake contamination — oil leaking past a failed seal can contaminate brake shoes or pads, reducing braking effectiveness
- Water or mud intrusion — damaged dust lip allows contaminants into the bearing cavity, causing rust and pitting on bearing surfaces
- Excessive wheel bearing play — prolonged seal failure leads to bearing degradation and detectable wheel play
| Verification Item | Data / Standard | Source / Method |
|---|---|---|
| Part Number (Short) | 8-94336315-2 | ISUZU OEM Parts Database |
| Part Number (Long) | 8943363152 | ISUZU OEM Parts Database |
| Part Name | SEAL; OIL, RR HUB, OUTER | ISUZU EPC |
| Vehicle Models | ISUZU NKR55 / NLR85 / NMR85 / NMR55 / 100P / 600P / NHR | ISUZU application catalog |
| Engine Compatibility | 4JB1 (2.8L, 4-cylinder, OHV, DI) | ISUZU application catalog |
| Inner Diameter | 46 mm | Product specification |
| Outer Diameter | 94.5 mm | Product specification |
| Height / Thickness | 8 mm | Product specification |
| Material | NBR (Nitrile Butadiene Rubber) | Material certificate |
| Seal Type | Dual-Lip, Metal Case | Product specification |
| Net Weight (per unit) | 0.06 kg | Product specification |
| H/S Code | 870850000 | Customs classification |
| Position | Rear Axle — Outer Hub | Product specification |
| Installation Success Rate | ≥ 99% | Based on repair order tracking |
| Certification | ISO/TS 16949 | Third-party system audit |
| Brand | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| ISUZU | ELF | NKR55 | 4JB1 | 1986–2007 |
| ISUZU | ELF 100P | NKR | 4JB1 | 1990s–2000s |
| ISUZU | ELF 600P | NKR | 4JB1 | 1990s–2000s |
| ISUZU | NLR85 | — | 4JJ1 | 2006–Present |
| ISUZU | NMR85 | — | 4JJ1 | 2006–Present |
| ISUZU | NMR55 | — | 4JB1 | — |
| ISUZU | NHR | NHR54 | 4JB1 | 1984–1990 |
- This oil seal is designed for the 46*94.5*8 mm application. Confirm the dimensions of your original oil seal before ordering
- The ISUZU N-Series rear hub uses one outer oil seal per side, in addition to the inner oil seal (8-94336314-1). Verify the required quantity and position before ordering
- Oil seals should be replaced in pairs (both sides of the rear axle) to maintain balanced bearing protection
- For right-hand drive (RHD) vehicles, verify clearance and orientation. Refer to the ISUZU workshop manual for the correct procedure
| Feature | Benefit + Verification Signal |
|---|---|
| Dual-Lip Metal-Cased Design | Primary sealing lip retains gear oil while secondary dust lip blocks water and debris — verified by product specification and functional testing |
| NBR (Nitrile Butadiene Rubber) | Excellent resistance to gear oil, grease, and high temperatures (−40°C to +120°C) — verified by ASTM D471 immersion testing and material certificate |
| OEM-Exact 46*94.5*8 mm Dimensions | Precision-matched to the ISUZU NKR/NLR/NMR rear hub bore — direct press-fit installation without modification — verified by CMM dimensional inspection |
| Spring-Loaded Lip | Maintains consistent contact pressure on the hub surface for reliable sealing at all operating speeds — verified by functional testing |
| ISO/TS 16949 Quality System | Full traceability with material certificates and batch inspection reports — third-party certified |
| Installation Success Rate ≥ 99% | Based on repair order tracking — confirms reliable fitment across the NKR55/NLR85/NMR85 platform |
- Preparation: Raise the vehicle on a hoist. Remove the wheel and brake drum. Support the rear axle housing
- Disassembly: Remove the axle shaft retaining nuts. Carefully withdraw the axle shaft assembly. Remove the old outer oil seal using a seal puller or pry bar
- Inspection: Inspect the hub sealing surface for wear, scoring, or pitting. Inspect the wheel bearing for wear or damage. Replace any damaged components
- Cleaning: Clean the hub bore and axle shaft thoroughly. Remove all old seal material and grease
- Installation: Coat the new oil seal lip with MP grease. Use a seal driver or socket that matches the seal outer diameter to press the seal into the hub bore until it is fully seated
- Axle Shaft Installation: Carefully reinstall the axle shaft assembly. Tighten the axle shaft retaining nuts to 59 N·m (51 lb·ft) or as specified in the ISUZU workshop manual
- Final Check: Verify the hub rotates smoothly without binding. Check for gear oil leakage at the seal
- Road Test: Lower the vehicle and perform a road test to verify wheel bearing operation and noise levels
| Fastener | Torque |
|---|---|
| Axle Shaft Retaining Nuts | 59 N·m (51 lb·ft) |
| Rear Axle Flange Nuts | 245 N·m (181 lb·ft) |
- Every 10,000 km: Inspect oil seal for gear oil leakage. Check wheel bearing for abnormal noise or play
- Every 40,000–50,000 km: Inspect wheel bearing condition. Replace oil seal if any leakage or damage is found
- Whenever the wheel hub is removed: Always replace the oil seal with a new unit
- When brake contamination is detected: Inspect oil seal immediately. Replace if any oil leakage is found
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