

⛽ Filter smarter, drive stronger—never compromise on fuel purity!
The Donaldson P550849 Fuel Filter is a high-performance water separator cartridge designed for trucks, featuring a 4.21-inch diameter and a durable machined exterior. It offers tool-free spin-on replacement for hassle-free maintenance and incorporates advanced filtration technology trusted by OEMs for long-lasting, reliable fuel system protection.















| Brand | Donaldson |
| Product Grade | Replacement Part |
| Outer Material | Plastic or Metal |
| Vehicle Service Type | Truck |
| Item Diameter | 4.21 Inches |
| Item Weight | 12.8 ounces |
| Style | Cartridge |
| Global Trade Identification Number | 00742330195383 |
| Manufacturer | Donaldson |
| Automotive Fit Type | Vehicle Specific Fit |
| OEM Part Number | 3944901S, 4669642 |
| UPC | 742330195383 |
| Model | Fuel Filter |
| Item model number | P550849 |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | P550849 |
M**N
The best
Like always Donaldson filters are the best on the market
J**Z
No O rings
Came in big box with paper to cushion it wasn't wrapped in plastic and had no O rings
Trustpilot
1 month ago
3 days ago