heavy duty truck oil filter

3000520 Heavy Duty Engine Oil Filter The 3000520 engine oil filter is a premium aftermarket lubrication filter manufactured according to heavy-duty vehicle industrial standards, specially designed for large diesel trucks, passenger coaches, construction machinery and stationary diesel generator units. During long-time heavy-load driving and continuous operation, engine lubricating oil will mix with metal wear debris, carbon deposits, sludge, dust and tiny impurities produced inside the engine. These pollutants circulating in the lubrication system will cause serious wear to bearings, crankshafts, pistons and other precision core components, leading to unstable oil pressure, insufficient power, loud engine noise, shortened service life and frequent mechanical breakdowns. This 3000520 filter adopts multi-layer gradient composite filtration structure to efficiently capture fine solid contaminants, always keeping the circulating engine oil clean. It ensures smooth oil supply and stable lubrication effect, greatly reducing internal engine friction wear and cutting unnecessary maintenance costs. With strict quality control in production, it can maintain stable filtration efficiency under high oil pressure and high-temperature working conditions, becoming an essential protective part for logistics fleets, engineering vehicles and industrial power equipment running in complex working environments all year round.  Product Material Description: Filter Media: High-density multi-layer composite fiber filter paper with dense pleats, stable filtration precision, large dirt holding capacity and excellent compatibility with various diesel engine oils; Outer Shell: Thickened high-strength cold-rolled steel housing with electrophoretic anti-rust coating, resistant to oil corrosion, external impact and outdoor scratch damage; Sealing Ring: Premium nitrile rubber (NBR), featuring outstanding high temperature resistance, oil resistance and anti-aging performance, achieving tight sealing without oil leakage under long-term compression; Internal Reinforced Metal Skeleton: Galvanized supporting frame prevents filter element collapse and deformation under sustained high lubricating pressure; Built-in Silicone Anti-Drain Valve: Prevents engine oil backflow after shutdown effectively, avoiding dry start wear of engine core parts.

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.