ISUZU ELF NPR NQR Rear Outer Hub Oil Seal with Dual-Lip Design and NBR Material for OEM Fit
Basic Properties
Place of Origin:
CHINA
Brand Name:
YIMI
Certification:
ISO/TS16949
Model Number:
NPR NQR
Trading Properties
Minimum Order Quantity:
20 PCS
Price:
Negotiable
Payment Terms:
T/T
Supply Ability:
10000 pcs/month
Specifications
| Height / Thickness: | 8 / 9.5 / 10 Mm | Inner Diameter: | 47 Mm (49 Mm At Lip) |
| Outer Diameter: | 100 Mm | Seal Type: | Dual-Lip, Metal Case |
| Net Weight: | 0.0735 Kg | Material: | NBR (Nitrile Butadiene Rubber) + Steel Case |
| Position: | Rear Axle — Outer Hub | Engine Compatibility: | 4HK1 / 4BD1 / 4HE1 / 4HG1 |
| High Light: | Dual-Lip Design Hub Oil Seal,NBR Material Wheel Hub Seal,OEM Fit Rear Outer Hub Oil Seal |
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Product Description
ISUZU ELF NPR NQR Rear Outer Hub Oil Seal 8-94336317-2 8943363172 OEM Fit
Rear Outer Hub Oil Seal 8-94336317-2 8943363172 for ISUZU ELF NPR NQR 700P 4HK1 — Verified OEM Fit 49*100*8/9.5 mm NBR Wheel Hub Seal
Product Overview
The Rear Outer Hub Oil Seal with OEM numbers 8-94336317-2 and 8943363172 is a verified direct-fit replacement for ISUZU ELF / NPR / NQR / 700P / NQR71 / NQR75 / NQR90 / NPR75 light and medium-duty trucks equipped with 4HK1 / 4BD1 / 4HE1 / 4HG1 diesel engines. This critical rear wheel hub sealing component retains hub lubrication and prevents dirt, water, and debris from entering the rear outer wheel bearing assembly.
Working Principle
The rear outer hub oil seal creates a dynamic seal between the rotating hub and stationary axle housing. The dual-lip design features a primary sealing lip that maintains contact under spring tension and a secondary dust lip that blocks contaminants. Constructed from NBR (Nitrile Butadiene Rubber) with metal case, it provides excellent resistance to gear oil, high temperatures, and compression set.
Failure Symptoms
- Gear oil leakage at the rear wheel hub — visible oil traces on wheel or brake drum
- Wheel bearing noise or vibration — oil loss causes accelerated bearing wear
- Brake contamination — oil leakage reduces braking effectiveness
- Water or mud intrusion — damaged dust lip causes rust and pitting
- Excessive wheel bearing play — prolonged failure leads to bearing degradation
Critical Inspection Note: ISUZU service manuals require that the rear hub oil seal be replaced, never reused whenever the wheel hub is removed. Always replace both left and right seals simultaneously. Coat the oil seal lip with MP grease before installation.
Technical Specifications
| Verification Item | Data / Standard | Source / Method |
|---|---|---|
| Part Number (Short) | 8-94336317-2 | ISUZU OEM Parts Database |
| Part Number (Long) | 8943363172 | ISUZU OEM Parts Database |
| Part Name | SEAL; OIL, RR HUB, OUTER | ISUZU EPC |
| Vehicle Models | ISUZU ELF / NPR / NQR / 700P / NQR71 / NQR75 / NQR90 / NPR75 | ISUZU application catalog |
| Engine Compatibility | 4HK1 / 4BD1 / 4HE1 / 4HG1 | ISUZU application catalog |
| Inner Diameter | 47 mm (49 mm at lip) | Febi 104427 specification |
| Outer Diameter | 100 mm | Febi 104427 specification |
| Height / Thickness | 8 / 9.5 / 10 mm | Febi 104427 / Musashi I3608 specification |
| Material | NBR (Nitrile Butadiene Rubber) + Steel Case | Febi 104427 material specification |
| Seal Type | Dual-Lip, Metal Case | Product specification |
| Net Weight (per unit) | 0.0735 kg | Febi 104427 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 |
Vehicle & Engine Compatibility
Primary ISUZU Applications:
| Brand | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| ISUZU | ELF | NKR66 / NKR71 | 4HF1 / 4HG1 | 1994–2002 |
| ISUZU | ELF | NPR66 | 4HF1 | 1994–2002 |
| ISUZU | NPR | NPR | 4HK1 / 4BD1 | 1986–Present |
| ISUZU | NQR | NQR | 4HK1 / 4HF1 | 1996–Present |
| ISUZU | NQR71 / NQR75 / NQR90 | — | 4HK1 | 2003–Present |
| ISUZU | NPR75 | — | 4HK1 | 2003–Present |
| ISUZU | 700P | — | 4HK1 | 2007–Present |
| ISUZU | NPR-HD | — | 4HK1 / 4HE1 | 1999–Present |
Non-ISUZU Applications (Same Platform):
| Brand | Model | Application |
|---|---|---|
| JMC | 1040 / Kaiyun | Light Truck |
| JMC | QL1110AN | Light Truck |
| GMC / Chevrolet | NPR / NPR-HD | Light Truck |
Important Fitment Notes:
- This oil seal is designed for the 49*100*8/9.5 mm application
- The ISUZU N-Series rear hub uses one outer oil seal per side
- Oil seals should be replaced in pairs (both sides of the rear axle)
- For right-hand drive vehicles, verify clearance and orientation
Features & Benefits
Dual-Lip Metal-Cased Design
Primary sealing lip retains gear oil while secondary dust lip blocks water and debris
Primary sealing lip retains gear oil while secondary dust lip blocks water and debris
NBR Construction
Excellent resistance to gear oil, grease, and high temperatures
Excellent resistance to gear oil, grease, and high temperatures
OEM-Exact Dimensions
Precision-matched to ISUZU ELF/NPR/NQR rear hub bore
Precision-matched to ISUZU ELF/NPR/NQR rear hub bore
Spring-Loaded Lip
Maintains consistent contact pressure for reliable sealing
Maintains consistent contact pressure for reliable sealing
ISO/TS 16949 Certified
Full traceability with material certificates and batch inspection
Full traceability with material certificates and batch inspection
High Installation Success Rate
≥ 99% success rate based on repair order tracking
≥ 99% success rate based on repair order tracking
Quality Control
| QC Item | Verification Method / Standard |
|---|---|
| Inner Diameter (47 mm) | CMM, 100% inspection |
| Outer Diameter (100 mm) | CMM, 100% inspection |
| Height (8 / 9.5 mm) | CMM, 100% inspection |
| Lip Geometry Angle | Optical comparator, 100% inspection |
| Material Hardness (Shore A) | Durometer, batch sampling |
| Fluid Immersion Resistance | ASTM D471 — 70h @ 100°C in gear oil |
| Compression Set | ASTM D395 — 70h @ 100°C |
| Tensile Strength | ASTM D412, batch sampling |
| Metal Case Bonding | Peel test, batch sampling |
| Surface Finish | Visual inspection — no flash, no contamination |
| Batch Traceability | Material lot number + production date |
| Packaging Protection | Sealed bag + moisture barrier + carton |
Installation Guidelines
IMPORTANT: Wheel hub service must be performed by a qualified technician. Always support the vehicle on a hoist and relieve hub nut tension before removing the hub. Never reuse old oil seals.
Reference ISUZU Workshop Manual:
- Preparation: Raise vehicle on hoist. Remove wheel and brake drum. Support rear axle housing.
- Disassembly: Remove axle shaft retaining nuts. Withdraw axle shaft assembly. Remove old outer oil seal.
- Inspection: Inspect hub sealing surface for wear or damage. Replace damaged components.
- Cleaning: Clean hub bore and axle shaft thoroughly.
- Installation: Coat new oil seal lip with MP grease. Press seal into hub bore until fully seated.
- Axle Shaft Installation: Reinstall axle shaft assembly. Tighten fasteners to specified torque values.
- Final Check: Verify hub rotates smoothly without binding.
- Road Test: Verify wheel bearing operation and noise levels.
Recommended Torque Values
| Fastener | Torque |
|---|---|
| Rear Hub Spindle Nut | 245 N·m (181 ft·lb) |
| Rear Wheel Bearing Inner Adjust Nut | 68 N·m (50 lb ft) |
| Rear Wheel Bearing Outer Adjust Nut | 169 N·m (125 lb ft) |
| Axle Shaft Retaining Nuts | 59 N·m (51 lb·ft) |
Maintenance Schedule
- Every 10,000 km: Inspect oil seal for leakage. Check wheel bearing for noise or play.
- Every 40,000–50,000 km: Inspect wheel bearing condition. Replace oil seal if needed.
- Whenever wheel hub is removed: Always replace oil seal with new unit.
- When brake contamination detected: Inspect oil seal immediately.
Packaging & Supply
- Standard Packaging: Sealed bag + moisture barrier + carton
- Custom Packaging: Neutral box, color box, or customer-branded packaging
- Suitable For: Wheel hub repair shops, ISUZU parts distributors, fleet maintenance
- Supply Capacity: Stable batch supply with quality reports
- Minimum Order Quantity: 5 PCS
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