Oil Strainer

An oil strainer, also known as oil pickup screen, is the primary coarse filtration component installed at the suction inlet of engine oil pumps, hydraulic pumps and transmission lubrication systems. It acts as the first defensive barrier of the whole lubricating circuit, intercepting large-size impurities such as metal shavings, casting sand, gasket fragments and sludge sediment mixed in engine oil before oil enters the pump body. Unlike fine oil filters that work under pressurized pipelines, oil strainers adopt large-flow mesh structure with minimum pressure drop, effectively avoiding pump cavitation, gear abrasion and oil passage blockage caused by coarse debris. Widely matched with sedans, SUVs, pickup trucks, heavy-duty commercial vehicles, motorcycles, agricultural machinery and small hydraulic equipment, high-quality oil strainers stabilize oil pressure output, reduce abnormal engine noise and greatly extend the service life of oil pumps, crankshaft bearings and camshaft assemblies.

Our full-series oil strainers adopt two core screen materials to meet diverse working conditions: 304 stainless steel woven mesh and high-strength reinforced nylon mesh. Stainless steel mesh strainers are preferred for high-temperature heavy-duty engines and marine machinery. The dense uniform woven structure delivers stable 80–300 micron coarse filtration precision, resisting high engine operating temperature, oil corrosion and long-term vibration without mesh deformation or hole expansion. Nylon mesh strainers are lightweight and cost-effective for scooters, small-displacement motorcycles and family passenger cars, with excellent oil resistance and flexible structure that fits narrow oil sump installation space. The outer frame and suction pipe are made of thick steel stamping or high-temperature resistant engineering plastic, integrated welding and injection molding eliminate split seams, preventing air suction and oil leakage that trigger low idle oil pressure warning lights.

Integrated sealing and structural design greatly improves installation tightness. Each oil strainer assembly is equipped with high-temperature fluorine rubber O-rings and positioning springs. After being immersed in the oil pan, the elastic component holds the screen close to the bottom of the sump to avoid vortex air intake during high-speed oil absorption, maintaining continuous and stable oil supply under rapid acceleration and uphill heavy-load driving. We produce multiple structural forms including disc flat strainers, curved pipe pickup strainers, cylindrical inline strainers and cartridge replaceable strainers, covering all mainstream OEM sizes for cars, trucks and two-wheelers. All mounting holes, pipe calibers and flange spacing strictly follow original vehicle parameters, realizing direct replacement without cutting, bending or secondary modification during engine maintenance.

Every finished oil strainer passes standardized factory performance tests, including high-flow pressure loss detection, long-term thermal cycling aging test, vibration fatigue simulation and mesh interception efficiency inspection. Inferior strainers with thin mesh, loose welding and mismatched sealing rings easily clog within short mileage, leading to insufficient lubrication, engine wear and overhaul costs. Our products support repeated cleaning and reuse after disassembly, lowering long-term maintenance expenses for repair shops and vehicle owners. All metal components go through anti-rust pickling treatment to resist corrosion from condensed water and acidic oil sludge inside the oil sump.

We provide flexible supply solutions including retail single packs, bulk carton wholesale and full OEM customization services. Customers can customize mesh density, overall dimensions, frame materials and laser brand marking according to drawings or samples. Compatible with gasoline engines, diesel engines and hydraulic transmission systems, our oil strainers deliver reliable primary filtration protection for global auto parts distributors, motorcycle repair stores and machinery maintenance factories. With stable large-flow performance, durable anti-blocking mesh and precise OEM matching size, they become essential cost-effective spare parts to protect engine core components and extend vehicle service cycles.