


⚙️ Seal the deal with confidence — don’t let leaks hold you back!
The National 4278 Differential Pinion Seal is a precision-engineered, spring-loaded multi-lip seal designed for select Ford Transit and F-150 models (2015-2018). It offers exceptional durability with a temperature tolerance from -40°F to 400°F and broad fluid compatibility, ensuring reliable, leak-free performance backed by over 75 years of National’s sealing expertise.









| Brand | National |
| Package Information | Bottle |
| Liquid Volume | 946 Milliliters |
| Item Weight | 9.07 g |
| Recommended Uses For Product | Automotive |
| Upper Temperature Rating | 4E+2 Degrees Fahrenheit |
| Item Form | Grease |
| Global Trade Identification Number | 00724956125289 |
| Manufacturer | National |
| Unit Count | 1.0 Count |
| UPC | 724956125289 |
| Number of Items | 1 |
| Item Weight | 0.32 ounces |
| Product Dimensions | 4 x 0.75 x 0.1 inches |
| Country of Origin | Mexico |
| Item model number | 4278 |
| Manufacturer Part Number | 4278 |
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