---
product_id: 91960423
title: "National 4278 Differential Pinion Seal for Ford F-150"
brand: "national"
price: "€ 18.23"
currency: EUR
in_stock: true
url: https://www.desertcart.fr/products/91960423-national-4278-differential-pinion-seal-for-ford-f-150
store_origin: FR
region: France
---

# Temp range -40°F to 400°F Fits 2015-2018 Ford Transit & F-150 models Spring-loaded multi-lip design National 4278 Differential Pinion Seal for Ford F-150

**Brand:** national
**Price:** € 18.23
**Availability:** ✅ In Stock

## Summary

> ⚙️ Seal the deal with confidence — don’t let leaks hold you back!

## Quick Answers

- **What is this?** National 4278 Differential Pinion Seal for Ford F-150 by national
- **How much does it cost?** € 18.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/91960423-national-4278-differential-pinion-seal-for-ford-f-150)

## Best For

- national enthusiasts

## Why This Product

- Trusted national brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Legacy Brand:** Backed by National’s 75+ years of industry-leading sealing innovation, delivering premium quality you can count on.
- • **Broad Fluid Compatibility:** Compatible with a wide range of automotive fluids, making it the versatile choice for any differential repair.
- • **Precision Fit for Ford Fleet:** Engineered to perfectly match multiple Ford Transit and F-150 models, ensuring seamless installation and optimal performance.
- • **Advanced Multi-Lip Seal Design:** Spring-loaded, multi-lip construction guarantees superior fluid retention and leak prevention for long-lasting reliability.
- • **Extreme Temperature Resilience:** Operates flawlessly from -40°F to 400°F, built to withstand the harshest driving conditions without compromise.

## Overview

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.

## Description

National 4278 Differential Pinion Seal for Ford F-150

## Features

- COMPATIBILITY – Fits 2015-2018 Ford Transit-150; 2015-2018 Ford Transit-250; 2015-2018 Ford Transit-350; 2015-2018 Ford Transit-350 HD; 2004-2004 Ford F-150 Heritage; 1999-1999 Ford E-150 Econoline; 2000-2000 Ford E-150 Econoline; 2001-2002 Ford E-150 Eco
- GET THE RIGHT PART -- Before purchasing, please check the “desertcart Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the “desertcart Confirmed Fit” bar has an “i” in a blue circle, this product has additional notes. Please hover over the “i” on the bar to see notes before making your purchase
- Design type: spring loaded; multi-lip
- Temperature range: -40°F to 400°F / -40°C to 204°C
- Excellent high temperature capabilities
- Compatible with wide range of fluids
- Delivers quality and reliable performance for every type of repair

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **Brand:** National
- **Package Information:** Bottle
- **Liquid Volume:** 946 Milliliters
- **Item Weight:** 0.02 Pounds
- **Recommended Uses For Product:** Automotive

## Images

![National 4278 Differential Pinion Seal for Ford F-150 - Image 1](https://m.media-amazon.com/images/I/712YEXhMTvL.jpg)
![National 4278 Differential Pinion Seal for Ford F-150 - Image 2](https://m.media-amazon.com/images/I/612b5B9ppDL.jpg)

## Questions & Answers

**Q: Whats the id and od for this?**
A: Thank you for your inquiry. The National Pinion Seal 4278 fits a shaft diameter of 1.812" and the seal OD is 3.096"

**Q: Does this fit a 1968 ford 8 inch? Thanks**
A: Thank you for the question.  Sorry, the National 4278 is not cataloged for this year model vehicle.  Additional vehicle information is needed. Please follow catalog listings including fitment notes to determine correct application.

## Frequently Bought Together

- National 4278 Differential Pinion Seal for Ford F-150
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**Shop now:** [https://www.desertcart.fr/products/91960423-national-4278-differential-pinion-seal-for-ford-f-150](https://www.desertcart.fr/products/91960423-national-4278-differential-pinion-seal-for-ford-f-150)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-23*