3000120 oil filter

3000120 Heavy Duty Engine Lube Oil Filter  The 3000120 engine oil filter is a high-performance aftermarket replacement component designed for heavy-duty diesel commercial vehicles, engineering machinery and stationary industrial diesel engines. During long-distance transportation and continuous heavy-load operation, engine lubricating oil will accumulate metal wear debris, carbon deposits, dust, sludge and fine impurities generated inside the engine. Circulation of these contaminants in the lubrication system will cause abrasion to bearings, crankshafts, pistons and other precision core parts, resulting in increased engine noise, power drop, oil pressure instability, shortened engine lifespan and frequent breakdowns. This 3000120 filter adopts multi-layer gradient filtration technology to efficiently trap tiny solid pollutants in lubricating oil, maintain long-term cleanliness of engine oil, guarantee smooth oil circulation and stable lubrication effect, effectively reduce internal engine wear and lower maintenance costs. Manufactured in strict accordance with automotive heavy-duty industry standards, it maintains stable filtration efficiency under high oil pressure and high-temperature working environments, serving as a reliable protective barrier for fleets, logistics trucks and engineering machinery working in complex and harsh working conditions all year round.  Product Material Description: Filter Medium: High-density composite fiber filter paper with compact pleated structure, featuring stable filtration precision, large dirt holding capacity and excellent compatibility with all types of diesel engine oil; Outer Housing: Thickened high-strength cold rolled steel shell with electrophoretic rust-proof coating, resistant to engine oil corrosion, external impact and outdoor scratch damage; Sealing Gasket: High-quality nitrile rubber (NBR), with outstanding high temperature resistance, oil resistance and anti-aging performance, realizing full sealing without oil leakage under long-term compression; Internal Reinforced Metal Skeleton: Galvanized support frame prevents filter element deformation and collapse under sustained high lubricating oil pressure; Built-in Silicone Anti-Drain Back Valve: Effectively avoids oil backflow after engine shutdown to prevent dry start wear on engine components.