125-190 Fuel Pump Filter Sock Strainer 2Pack for Walbro 450LPH 525LPH 535LPH F90000262 F90000267 GSS341 E85 Low Restriction High Flow 75-100 Micron Nylon Mesh

Upgrade your fuel system with the 125-190 fuel pump filter sock strainer engineered for high-performance Walbro fuel pumps. Compatible with Walbro 450LPH (F90000267) 525LPH 535LPH F90000262 F90000274 GSS341 and GSS342 E85 fuel pumps this 2-pack replaces OEM part numbers 125-190 400-0085 and 400-1168. The 39mm press-fit design delivers a secure leak-free connection for a wide range of performance applications including Lexus IS300 Nissan 370Z Altima GT-R Honda Accord CR-V and Civic.Built from ethanol-resistant nylon mesh this fuel pump strainer is explicitly rated for E85 fuel systems. Unlike standard polyester or paper-element socks that degrade when exposed to ethanol the nylon construction withstands corrosion and maintains structural integrity over time. The optimized 75-100 micron mesh provides the ideal balance — coarse enough to maximize flow yet fine enough to block debris that can damage fuel pump internals and injectors. This makes it an essential upgrade for any E85 or high-horsepower build.Designed for high-flow builds this low-restriction sock introduces only 3-5% flow reduction on a 525LPH pump delivering 500-515 LPH effective flow. It supports up to 750HP on pump gas and 480-530WHP on E85 at 43 PSI base pressure. A properly sized sock prevents cavitation — the leading cause of premature Walbro pump failure. By maintaining adequate inlet flow it keeps the pump cool and lubricated preventing the thermal overload brush wear and commutator damage that occurs when restrictive socks starve the pump at wide-open throttle. Quality nylon construction resists collapse up to 15 PSI differential ensuring consistent fuel delivery even under sustained high-demand conditions.Installation is straightforward without dropping the fuel tank. Access the pump through the rear seat or trunk access panel on most vehicles. Remove the retaining ring with a spanner or non-sparking tool press the new sock firmly until it snaps into place and pre-soak in fuel for 2-3 minutes before reinstalling for immediate prime. Always replace the pump module O-ring during service. Replace every 2 years or 30

• 【Wide Pump Compatibility】Engineered for Walbro 450LPH (F90000267) 525LPH 535LPH F90000262 F90000274 GSS341 and GSS342 E85 fuel pumps. Replaces OEM part numbers 125-190 400-0085 and 400-1168. The 39mm press-fit design ensures a secure leak-free connection. Compatible with Lexus IS300 Nissan 370Z Altima GT-R Honda Accord CR-V and Civic.
• 【E85-Ready Nylon Construction】Built from ethanol-resistant nylon mesh rated for E85 fuel systems this fuel pump strainer resists degradation that destroys standard polyester and paper-element socks. The optimized 75-100 micron mesh blocks harmful debris from entering the pump while maintaining maximum flow protecting sensitive internal components from premature wear.
• 【High-Flow Low-Restriction Design】Purpose-built for 450LPH+ high-flow fuel pumps this low-restriction sock introduces only 3-5% flow reduction delivering 500-515 LPH effective flow on a 525LPH pump. Supports up to 750HP on pump gas and 480-530WHP on E85. Unlike restrictive socks that cause cavitation and overheating this design ensures reliable fuel delivery at wide-open throttle.
• 【Prevents Pump Failure】A clogged or undersized sock is a leading cause of Walbro pump failure from cavitation and thermal overload. This filter sock maintains proper inlet flow to prevent fuel starvation brush wear and commutator damage at high RPM. Quality nylon construction withstands up to 15 PSI differential without collapsing ensuring consistent fuel pressure and pump longevity.
• 【Easy No-Tank-Drop Installation】Replace your fuel pump sock in minutes without dropping the fuel tank. Access through the rear seat or trunk access panel on most vehicles including Lexus IS300 and Nissan 370Z. The press-fit design seats firmly with an audible snap. Pre-soak in fuel before installation for immediate prime. Best replaced whenever the pump is out of the tank.