| Heavy Duty Supplier | Yes |
| Housing Bore (Inches) | 2.750 |
| Shaft Diameter | 49.2 |
| Material | Fluoro-Elastomer |
| Weight | 1.52 |
| Thickness | 9.4 |
| Inside Diameter | 49.2 |
| Width (Inches) | 0.313 |
| External Markings | NAK TBJR 1.937 2.750 0.391 -> 11 |
| Shaft (Inches) | 1.937 |
| Outside Diameter | 70 |
| Shaft Diameter (Inches) | 1.937 |
| Housing Bore | 69.9 |
| Part Terminology | Engine Crankshaft Seal |