LF14004NN engine oil filter

LF14004 Oil Filter Paper Core, LF14004NN OEM Replacement Engine Oil Filter Element The LF14004 paper core (LF14004NN full model) is a professional OEM-grade full-flow engine oil filter inner cartridge, cross-referenced with Cummins OEM part numbers 5537363, 5581701, perfectly developed to match Cummins ISF2.8 and ISF3.8 common rail diesel engines widely equipped on Foton light-duty commercial trucks and small construction machinery. Produced strictly in accordance with IATF 16949 automotive quality management standards, this filter core adopts dual-layer StrataPore composite gradient fiber filtration technology, which efficiently captures engine wear metal debris, carbon soot, sludge, oxidized colloids and fine solid contaminants mixed in circulating lubricating oil. It delivers stable full-flow oil purification before lubricating oil reaches crankshafts, bearings, turbochargers and precision moving components, effectively lowering mechanical abrasive wear, preventing oil passage clogging and premature engine aging. Fully tested to adapt to frequent start-stop urban delivery operation, bumpy rural road conditions, high-temperature engine cabins and low-temperature cold working areas, this filter paper core maintains consistent high filtration efficiency throughout its full service cycle. With precise OEM standardized dimensional production, it supports direct plug-and-play installation with matched filter housings without modification, which is an essential routine maintenance consumable for global urban logistics fleets, light truck freight companies, vehicle repair workshops and small engineering equipment teams.  Product Material Description: Main Filter Medium: Imported European high-density composite wood pulp filter paper compounded with glass fiber, adopting dual-layer gradient pore structure, featuring excellent dirt holding capacity, stable permeability and outstanding high-temperature oil resistance under long-time working conditions. End Cap & Support Structure: Reinforced high-strength engineering plastic upper and lower end caps with integrated positioning buckles, equipped with built-in rigid support ribs to effectively prevent filter paper deformation or collapse under frequent engine oil pressure fluctuations. Sealing Components: Premium HNBR hydrogenated nitrile rubber sealing ring, with excellent oil resistance, wide working temperature range (-40℃ ~ 125℃) and long anti-ageing performance to achieve complete leakproof sealing. Bonding Adhesive: High-temperature resistant oil-proof hot melt adhesive, firmly laminates multi-layer filter paper tightly, never dissolves or peels off after long-term immersion in conventional engine lubricating oil.