common rail engine fuel filter replacement

FF105 TP1261 Spin-On Diesel Fuel Water Separator Filter FF105 fuel filter with cross reference part number TP1261 is a high-performance spin-on integrated fuel water separator designed for light-duty common rail diesel engines used widely in light trucks, pickup trucks and small commercial vehicles. Installed on the front end of the engine fuel supply system, it acts as the key purification component to process incoming diesel before fuel flows into high-pressure fuel pumps and precision fuel injectors. This filter can effectively capture fine solid contaminants including sand grains, rust debris, carbon sediments and colloidal impurities, while separating free water and tiny moisture droplets mixed in diesel fuel efficiently. Manufactured under strict ISO/TS16949 automotive quality standards, it adapts perfectly to Euro IV, Euro V and Euro VI emission diesel engines. It maintains consistent filtration efficiency under daily urban delivery, long-distance highway transportation, dusty construction roads, high-humidity coastal and low-temperature cold environments. As a premium aftermarket direct replacement filter, it effectively safeguards the precision fuel system, reduces component failure risks, and brings stable engine performance for daily commercial vehicle operation.  Product Material Description: Outer Housing Shell: Thick high-strength cold-rolled carbon steel shell with full electrophoretic anti-rust coating. It features outstanding pressure resistance, impact resistance and diesel corrosion resistance, capable of enduring regular fuel system working pressure without expansion, cracking or oil leakage, providing solid outer protection for internal filter media. Internal Filter Media: Multi-layer gradient density composite wood pulp filter paper soaked with hydrophobic resin, adopting deep dense pleating technology to maximize effective filtration area. The gradient layered structure realizes progressive fine filtration and excellent water repellent capacity, balancing outstanding filtration precision and smooth fuel flow rate. Sealing Assembly: High-quality NBR nitrile rubber sealing gasket. It resists long-term diesel erosion, high temperature and aging, and keeps stable sealing elasticity within the working temperature range of -35℃ to 125℃, preventing unfiltered fuel bypass and mounting joint leakage completely. Precision Thread Base: CNC machined solid carbon steel threaded base with standard thread specification, precise tolerance and stable structure, convenient for spin-on installation and routine maintenance disassembly.