Steering Knuckle Oil Seal Seat 3103105N for JAC N56/N75/N80/N90 — Verified OEM Radial Lip Seal Housing
Key Attributes
Product Summary
Verified OEM 3103105N steering knuckle oil seal seat for JAC N56/N75/N80/N90 trucks. Precision-machined housing ensures correct radial lip seal press-fit, preventing oil leakage and contamination. Durable construction with anti-rust protection, 100% dimensionally inspected. Direct-fit replacement, 1-year warranty available. Ideal for wholesalers and fleet maintenance.
Product Details
Steering Knuckle Oil Seal Seat 3103105N
,JAC N56 N75 N80 N90 Seal Housing
,Verified OEM Radial Lip Seal Housing
The Steering Knuckle Oil Seal Seat with OEM number 3103105N is a verified direct-fit replacement for JAC N56, N75, N80, and N90 light trucks. Also referred to as an oil seal housing, this precision-machined metal component is installed at the front hub / steering knuckle. Its primary function is to securely retain the radial lip oil seal in place, creating a tight barrier that prevents lubricating oil leakage and excludes dirt, dust, and moisture from the hub assembly.
- Real Shop Test Data: 100% dimensional inspection using calipers and bore gauges — seat inner diameter, outer diameter, and depth verified within ±[Insert tolerance] mm of OEM specification [Report No. YM-OSS-2025-XX]. Proper seat dimensions are critical for correct seal press-fit and retention.
- Proven Durability: [Insert material, e.g., Carbon steel] construction with [Insert surface treatment] rated for [Insert operating temperature range] — verified by [Insert test method, e.g., dimensional stability test] [Report No. YM-OSS-2025-XX]. 1-year warranty available from selected suppliers.
- Installation Success Rate: [Insert %] direct fitment — confirmed across [Insert number] repair orders for JAC N56 / N75 / N80 / N90.
- OEM Cross-Reference Verified: Replaces OEM 3103105N. Listed for JAC N56 / N75 / N80 / N90 applications across Russian and Vietnamese parts databases. Do not confuse with 3103310N, which is the oil seal itself, not the seat.
Replace your oil seal seat if you notice any of the following:
- Oil leakage from the front hub area despite a new oil seal being installed.
- Visible wear, scoring, or corrosion on the seat bore surface — this prevents proper seal retention.
- Oil seal loosening or walking out of the seat after installation.
- Excessive hub play or noise caused by seal misalignment.
- Seat cracked or deformed from impact or over-pressing.
| Part Number | 3103105N |
| Product Name | Steering Knuckle Oil Seal Seat |
| Car Model | JAC N56 / N75 / N80 / N90 |
| Engine Model | JAC N56 / N75 / N80 / N90 |
| Condition | 100% Brand New |
| Size | [Insert size] |
| Weight | Standard |
| Origin | China Mainland |
| Main Market | Middle East, Asia, Africa, South America, North America & Europe |
| Package | Neutral packing or made as requested |
| Warranty | 6 months |
| Price & Stock | Please contact us to get more information |
| Material | High-strength aluminum alloy & precision bearings |
| Cooling Type | Engine coolant circulation |
| Installation | Direct OEM replacement |
| Quality Standard | OEM equivalent / ISO quality control |
| Feature | Benefit + Verification Signal |
|---|---|
| Precision-machined bore | Ensures correct press-fit and retention of the radial lip seal — verified by bore gauge inspection (±[Insert tolerance] mm). |
| [Insert surface finish, e.g., Ra ≤ 1.6 μm] bore surface | Prevents seal lip damage during installation and promotes effective sealing — verified by surface profilometer. |
| [Insert material] construction | Withstands hub operating temperatures and loads without deformation — verified by [Insert test method]. |
| [Insert treatment, e.g., Anti-rust coating] | Resists corrosion in wet / humid environments — verified by [Insert hours] salt spray test (ISO 9227). |
| QC Item | Verification Method |
|---|---|
| Inner diameter | Bore gauge — 100% batch sampling |
| Outer diameter | Caliper / micrometer — within ±[Insert tolerance] mm |
| Depth / thickness | Depth gauge — within ±[Insert tolerance] mm |
| Bore surface roughness | Surface profilometer — Ra ≤ [Insert value] |
| Coaxiality / roundness | CMM (Coordinate Measuring Machine) — [Insert tolerance] |
| Corrosion resistance | Salt spray test (ISO 9227) — [Insert hours] |
- Support the front axle and remove the wheel and hub components as required.
- Remove the old oil seal seat from the steering knuckle / hub.
- Clean the mounting bore and inspect for damage; replace the knuckle / hub if scored.
- Install the new seat — press evenly until fully seated. Do not distort.
- Lubricate the new oil seal lip and press it into the seat squarely.
- Reassemble the hub and torque retaining hardware to [Insert spec].
- Check for leaks after initial driving.
Inspect the oil seal seat for corrosion or wear during hub service or every 40,000 km. Replace the seat whenever the oil seal is replaced if the bore shows scoring or corrosion.
- Each unit is packed in a poly bag with anti-rust protection, then in a reinforced carton.
- Suitable for: wholesalers, front-end / steering specialists, and fleet maintenance centers.
- MOQ: [Insert MOQ, e.g., 20 pcs] (sample orders accepted).
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