| Product Line | Driveline & Axles |
| Category Name | Axle Wheels Oil Bath Seals |
| Part Type | Oil Seal |
| Alternate Part Name | Drive Axle Seal, Wheel End Wheel Seal, Oil Bath Seal, Drivetrain Seal |
| OEM Part Number | 6638 - S |
| Application Type | Semi-Trucks, Heavy Duty Trucks |
| Outside Diameter (O.D.) | 4.848 in. |
| Material | Nitrile (NBR) |
| Housing Bore Diameter | 4.841 in. |
| Inside Diameter (ID) | 3.500 in. |
| Seal Shaft Diameter | 3.500 in. |
| Width | 0.932 in. |
| Seal Design Type | Wheel Seals |
| Net Weight | 0.50 lb. |
| Cross References | 32QJ269, 35062, 382-8036, 3828036, 6638S, A1205E2475, NS6638S |
| Intended Application | |
