--- product_id: 91960423 title: "National 4278 Differential Pinion Seal for Ford F-150" brand: "national" price: "18965CFA" currency: XOF in_stock: true reviews_count: 13 url: https://www.desertcart.sn/products/91960423-national-4278-differential-pinion-seal-for-ford-f-150 store_origin: SN region: Senegal --- # Withstands up to 400°F high heat Fits multiple Ford models 1999-2018 Spring-loaded multi-lip design for superior sealing National 4278 Differential Pinion Seal for Ford F-150 **Brand:** national **Price:** 18965CFA **Availability:** ✅ In Stock ## Summary > 🚀 Seal the deal with National – where precision meets power! ## Quick Answers - **What is this?** National 4278 Differential Pinion Seal for Ford F-150 by national - **How much does it cost?** 18965CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/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 Industry Legacy:** Backed by National’s 75+ years of sealing innovation—join thousands of professionals who rely on proven quality. - • **Precision Fit for Ford Fleet:** Seamlessly compatible with Transit and F-150 models from 1999 to 2018—no guesswork, just perfect fit. - • **Advanced Multi-Lip Seal Design:** Spring-loaded technology guarantees leak-proof performance, protecting your differential with cutting-edge engineering. - • **Extreme Temperature Resilience:** Operates flawlessly from -40°F to 400°F, ensuring durability in any climate or driving condition. - • **Fluoroelastomer Material Excellence:** Premium material resists wear and fluid degradation, extending the life of your vehicle’s drivetrain. ## Overview The National 4278 Differential Pinion Seal is a high-performance, spring-loaded multi-lip seal crafted from durable fluoroelastomer. Engineered to fit a broad range of Ford vehicles from 1999 to 2018, it withstands extreme temperatures from -40°F to 400°F and resists fluid degradation, ensuring reliable differential protection. Trusted for over 75 years, National delivers premium sealing solutions that keep your drivetrain running smoothly and leak-free. ## Description National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today's vehicles. ## 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 | |---------------|-------| | Asin | B000C5J0U4 | | Best Sellers Rank | #263,296 in Automotive (See Top 100 in Automotive) #24 in Automotive Replacement Differential Seals | | Brand Name | National | | Container Type | Bottle | | Customer Reviews | 4.5 4.5 out of 5 stars (204) 4.5 out of 5 stars | | Global Trade Identification Number | 00724956125289 | | Included Components | Multi Purpose Seal | | Item Form | Grease | | Item Weight | 9.07 g | | Liquid Volume | 946 ml | | Manufacturer | National | | Material | Fluoroelastomer | | Model Number | 4278 | | Number Of Items | 1 | | Part Number | 4278 | | Recommended Uses For Product | Automotive | | Specific Uses For Product | Automotive differentials | | Unit Count | 1 Count | | Upc | 724956125289 | | Upper Temperature Rating | 400 °F | ## Product Details - **Brand:** National - **Item Weight:** 0.02 Pounds - **Liquid Volume:** 946 Milliliters - **Package Information:** Bottle - **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) ## 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Old Guy *by on Reviewed in the United States September 14, 2025* Perfect fit for my ford pick up pinion seal. ### ⭐⭐⭐⭐⭐ worked as it should *by on Reviewed in the United States March 4, 2026* worked as it should. no leaks for 25k+ miles ### ⭐⭐⭐⭐⭐ Make sure you have the right part number. *by on Reviewed in the United States May 12, 2026* Did not fit. But my fault, I didn't know that there were early and late models. ## Frequently Bought Together - National 4278 Differential Pinion Seal for Ford F-150 - Valvoline FlexFill Full Synthetic SAE 75W-140 Gear Oil 1 QT Pouch --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/91960423-national-4278-differential-pinion-seal-for-ford-f-150](https://www.desertcart.sn/products/91960423-national-4278-differential-pinion-seal-for-ford-f-150) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-08-05*