Fuel filter

1105204E5233 OEM Fuel Water Separator Paper Core  1105204E5233 is the original OEM precision inner paper filter core, perfectly matched for the 1105100E5233 filter housing assembly of JAC light trucks with Yunnei D25 & D30 common rail diesel engines. It serves as the secondary fine filtration core of the high-pressure common rail fuel system. Adopting advanced coalescing composite filter paper technology, this pleated paper core can effectively trap fine silt, tiny metal debris, carbon sludge and residual emulsified micro water droplets after primary filtration of diesel fuel. It delivers precise final protection for high-pressure fuel pumps and precision fuel injectors, effectively preventing internal blockage, abrasive wear and electrochemical corrosion of delicate fuel system core parts. Manufactured strictly to original OEM dimension specifications and IATF16949 automotive quality management standards, this paper core maintains stable fuel rail pressure, boosts complete diesel combustion, enhances engine dynamic performance, and reduces fuel consumption and exhaust emissions during frequent start-stop urban distribution and short-distance transportation. Widely applied to JAC Junling V6, Shuailing Q6, Kangling J5 series light commercial vehicles. Every paper core passes strict pressure resistance, water separation efficiency and long-term aging durability tests. We have sufficient spot inventory, support neutral export packaging and private label customization, and offer a 12-month quality warranty. It is a cost-effective replacement spare part for global light truck auto parts wholesalers, local repair garages and urban logistics fleet maintenance teams.  Product Material Description: Filter Paper Core: Imported high-density multi-layer composite wood pulp filter paper with evenly dense pleats, stable filtration precision, outstanding hydrophobic demulsification performance, large dirt holding capacity and excellent compression resistance to sustain long-term continuous fuel working pressure. End Reinforced Plastic Frame: High-strength PA66 reinforced plastic upper and lower end caps with integrated injection molding, solid rigid structure that resists deformation under fluctuating fuel pressure impact. Internal Central Support Skeleton: Rigid molded plastic inner tube, firmly supports the pleated filter paper core to avoid collapse and distortion caused by instantaneous strong fuel flow impact. Precision End Sealing Structure: Tightly fitted sealing structure at both ends, perfectly matched with the original filter housing to avoid bypass of unfiltered diesel.

1105050-2007 / 1105050-2007A Fuel Water Separator Paper Core  1105050-2007 (1105050-2007A) is the original OEM long-lasting paper filter core for the classic Yili Cannon fuel water separator assembly, specially matched to Xichai CA6DM3 series diesel engines for FAW Jiefang heavy trucks. As the core precision fine filtration component of the high-pressure common rail fuel system for Euro 5/6 heavy-duty trucks, this pleated filter core adopts high-efficiency coalescence filtration technology, which can effectively intercept fine metal wear particles, rust residue, silt, carbon sludge and emulsified tiny water droplets after primary water separation of diesel fuel. It provides ultimate protection for high-pressure fuel pumps and precision injectors, effectively avoiding internal clogging, abrasive wear and electrochemical corrosion of core fuel system components, greatly extending the service life of expensive fuel system accessories.Manufactured strictly in accordance with FAW original OEM dimensional standards and IATF16949 automotive quality certification, this upgraded 100,000-kilometer long-service filter stabilizes consistent fuel rail pressure, promotes complete diesel combustion, improves engine power output, reduces fuel consumption and exhaust emissions during long-distance heavy-load highway transportation. Widely compatible with Jiefang J6P, J7, JH6 series long-haul tractors, container semi-trailers and heavy engineering transport vehicles. Every filter core passes strict pressure resistance, water separation efficiency and long-term aging durability tests. We have abundant ready stock, support neutral export packaging & private label customization, and provide a 12-month quality warranty, which is a stable and cost-effective replacement spare part for global heavy truck parts wholesalers, professional auto repair service centers and large logistics fleet maintenance teams.  Product Material Description: Filter Paper Core: Imported multi-layer high-density composite glass fiber filter paper, with dense uniform pleats, stable precision, excellent hydrophobic demulsification property, ultra-large dirt holding capacity and outstanding compression resistance to withstand long-time continuous fuel pressure, supporting 100,000km long service cycle. Matching NBR Sealing O-ring: Premium nitrile butadiene rubber gasket included, resistant to diesel corrosion, high temperature and low-temperature aging hardening, realizing full tight sealing to prevent unfiltered fuel bypass and fuel leakage completely. Upper & Lower Reinforced Plastic End Caps: High-strength PA66 reinforced integrated injection molding end covers, firm rigid structure that resists deformation under fluctuating long-term fuel pressure impact. Central Support Skeleton: Molded rigid plastic inner central tube, firmly supports the pleated paper core to prevent collapse and distortion caused by instantaneous fuel flow impact.

2000421 Fuel Filter Paper Core Cross 1117050-A635  2000421 is an OEM precision fuel fine filter paper core, cross interchangeable with part number 1117050-A635, specially designed for FAW Jiefang light & medium trucks equipped with Dachai Deutz CA4DD1 series diesel engines. As the secondary precision fine filtration core of the high-pressure common rail fuel system, this pleated paper core adopts gradient-density composite filter paper technology, which can efficiently trap fine silt, metal wear debris, carbon sludge and tiny residual water droplets after primary water separation. It provides ultimate protection for high-pressure fuel pumps and precision injectors, effectively avoiding internal clogging, abrasive wear and electrochemical corrosion of core fuel system components.Manufactured strictly in accordance with original OEM dimension standards and IATF16949 automotive quality certification, this paper core maintains stable fuel rail pressure, realizes complete diesel combustion, improves engine power output, reduces fuel consumption and exhaust emissions for daily urban logistics and short-distance transportation. Widely matched for Jiefang J6F, TigerV series light commercial vehicles. Every core passes strict pressure resistance, filtration efficiency and aging durability tests. We offer abundant spot stock, neutral export packaging & private label customization and a 12-month quality warranty, which is a cost-effective replacement spare part for global light truck parts wholesalers, auto repair shops and urban logistics fleet maintenance teams.  Product Material Description: Filter Paper Core: Imported multi-layer high-density wood pulp composite filter paper, with uniform dense pleats, stable micron precision, excellent hydrophobic performance, large dirt holding capacity and strong compression resistance to withstand long-term continuous fuel pressure. End Reinforced Plastic Frame: High-strength PA66 reinforced plastic upper & lower end caps, integrated molding technology, firm structure that resists deformation under fluctuating fuel pressure. Central Support Skeleton: Rigid molded plastic inner tube, firmly supports the pleated filter paper to prevent collapse and distortion caused by instantaneous fuel flow impact. Sealing Matching Structure: Precision end sealing structure, fully fits the original filter housing to prevent unfiltered fuel bypass.

60282026 Paper Core Fuel Water Separator Filter Cross SN25204 FS19765 60282026 is an OEM-grade high-efficiency paper core fuel water separator filter, cross interchangeable with SN25204 and FS19765, specially designed for Sany medium excavators equipped with Isuzu 4JJ1 diesel engines. It acts as the core fine filtration paper cartridge of the engineering machinery fuel system, adopting advanced coalescing paper filtration technology to efficiently capture rust grit, silt, carbon sludge, fine metal debris and emulsified free water mixed with on-site construction diesel fuel. It thoroughly purifies fuel before entering high-pressure fuel pumps and precision injectors, effectively preventing abrasive wear, blockage and electrochemical corrosion of precision fuel system parts. Manufactured strictly per original Sany OEM dimensional standards and ISO9001 quality certification, this paper core maintains stable fuel supply pressure, optimizes full diesel combustion, improves engine output power, reduces fuel consumption and black smoke emission under long-hour heavy-load dusty construction working conditions. Widely applied to Sany SY215-10, SY225-9 and other mainstream excavator models. Every paper core passes strict water separation efficiency, pressure resistance and aging durability tests. We provide sufficient spot stock, neutral export packaging & private label customization, plus a 12-month quality warranty, which is a reliable cost-effective spare core for global construction machinery parts wholesalers, repair service centers and engineering fleet maintenance teams.  Product Material Description: Filter Paper Core: Imported HV high-density composite wood pulp filter paper with dense uniform pleats, stable filtration precision, excellent hydrophobic demulsification performance, large dirt holding capacity and outstanding compression resistance to withstand long-term continuous fuel pressure. Sealing O-Ring: Premium NBR nitrile butadiene rubber gasket included, resistant to diesel corrosion, high temperature and low-temperature aging hardening, realizing full tight sealing to avoid bypass of unfiltered fuel and fuel leakage. Upper & Lower Plastic End Caps: High-strength reinforced injection-molded plastic end covers, firm structure that resists deformation and cracking under fluctuating fuel pressure. Internal Central Support Tube: Molded rigid plastic inner skeleton, firmly supports the pleated paper core to prevent collapse and distortion caused by instantaneous fuel flow impact.

1105050-2007HV Paper Core Fuel Filter Element 1105050-2007HV is a professional paper core type fuel water separator filter specially manufactured for FAW Jiefang heavy trucks equipped with Xichai Aowei diesel engines, designed as the precision inner paper filter core for the complete fuel filter assembly. As the secondary fine filtration core of the vehicle high-pressure common rail fuel system, this high-density paper core can effectively intercept tiny metal particles, rust residue, fine silt, carbon sludge and emulsified micro water droplets remaining after primary filtration of diesel fuel. It provides ultimate purification protection for high-pressure oil pumps and precision fuel injectors, effectively reducing abrasive wear, clogging and electrochemical corrosion of delicate fuel system components. Produced strictly according to original OEM dimensional standards and IATF16949 automotive quality specifications, this paper core features stable filtration precision, which keeps consistent fuel supply pressure, promotes sufficient diesel combustion, improves engine power performance, reduces fuel consumption and exhaust emissions during long-distance heavy-load transportation. Widely applicable to FAW Jiefang J7, J6P, J6V series long-haul tractors, container trucks and engineering transport vehicles. Every paper core undergoes strict water separation efficiency, pressure resistance and durability aging tests. We provide sufficient spot stock, customizable private label packaging and a 12-month quality warranty, which is a reliable cost-effective spare core choice for global heavy truck parts distributors, auto repair service centers and large logistics fleet maintenance departments.  Product Material Description: Filter Media (Paper Core): Multi-layer high-density imported composite wood pulp filter paper with dense uniform pleats, stable precision, excellent hydrophobic demulsification property, large dirt holding capacity and outstanding compression resistance to adapt to long-time continuous fuel pressure. End Adhesive & Reinforcement Edge: High-temperature resistant environmental adhesive and reinforced cardboard edges, firm bonding, not easy to crack or fall off under oil impact. Internal Central Support Frame: High-hardness integrated plastic central tube, firmly supports the pleated paper core to prevent deformation and collapse under instantaneous fuel flow pressure. Matching Sealing Structure: Precision fit sealing structure at both ends, closely matched with the filter housing to avoid unfiltered fuel bypass.

1125030-H02F0 OEM Diesel Fuel Filter Element Cross 1125030-H02B0 1125030-H02F0 is an OEM standard high-efficiency fuel water separator filter, interchangeable with part number 1125030-H02B0, professionally developed for Dongfeng ISZ13 and ISZ15 series Euro 5 / Euro 6 diesel engines fitted on Dongfeng Kinland Flagship KX, KL, KR and Tianlong heavy-duty trucks. As the core precision purification component of the high-pressure common rail fuel system, this filter adopts advanced coalescing separation technology to efficiently capture rust particles, sand, sludge, carbon sediment and emulsified free moisture contained in diesel fuel. It thoroughly cleans fuel before delivery to high-pressure fuel pumps and precision fuel injectors, effectively preventing abrasive wear, internal blockage and electrochemical corrosion of delicate fuel system core components. Manufactured strictly according to original OEM dimensional specifications and IATF16949 automotive quality management standards, this filter stabilizes fuel rail pressure consistently, promotes full combustion of diesel, boosts engine power output, reduces fuel consumption and black smoke emissions during long-distance heavy-load transportation. Widely applied to long-haul tractors, container trucks, dump trucks and logistics heavy vehicles of Dongfeng flagship series. All finished products pass strict burst pressure, water separation efficiency and long-term aging durability tests. We provide sufficient spot inventory, neutral packaging & private label customization and a 12-month quality warranty, which is a stable and cost-effective spare part choice for global heavy truck auto parts wholesalers, professional repair service centers and large logistics fleet maintenance teams.  Product Material Description: Filter Media: Multi-layer high-density gradient composite wood pulp filter paper with dense uniform pleated structure, featuring stable micron filtration precision, excellent hydrophobic demulsification performance and ultra-large dirt holding capacity for continuous long-hour heavy-duty operation. Sealing Rubber Gasket: Premium NBR nitrile butadiene rubber sealing ring, resistant to diesel corrosion, high temperature and low-temperature aging hardening, realizing complete tight sealing to fully eliminate fuel leakage at assembly joints. Upper & Lower End Caps: High-strength thickened engineering plastic end covers with integrated injection molding, rigid structure that resists deformation and cracking under sustained high fuel working pressure impact. Internal Support Skeleton: Reinforced perforated plastic central framework, which firmly supports the pleated filter media to avoid collapse and distortion caused by instantaneous strong fuel flow pressure.

112253220184-015 OEM Diesel Fuel Filter Cross UF0626-007 1111402XED96 112253220184-015 is an OE standard cartridge fuel water separator filter, cross compatible with part numbers UF0626-007, 1111402XED96 and 110010070787, specially customized for Foton Aumark and JMC series light trucks equipped with 2.5L common rail diesel engines. As an essential core purification component of the vehicle fuel supply system, this filter adopts advanced coalescence filtration technology to efficiently capture rust particles, sand, sludge, carbon sediment and emulsified free water mixed in daily diesel fuel. It thoroughly purifies fuel before delivery to high-pressure fuel pumps and precision fuel injectors, effectively preventing abrasive wear, internal blockage and electrochemical corrosion of delicate fuel system precision parts. Manufactured strictly in accordance with original OEM dimensional specifications and IATF16949 automotive quality standards, it maintains stable fuel rail pressure, optimizes full diesel combustion, upgrades engine dynamic performance, reduces fuel consumption and black smoke emissions during frequent start-stop urban logistics transportation. Widely applied to urban delivery box trucks, refrigerated vans and small light engineering vehicles for short-distance hauling. Every finished product passes strict burst pressure, water separation efficiency and aging durability testing. We provide sufficient spot stock, neutral & private label customized packaging and a 12-month quality warranty, which is a reliable cost-effective spare part choice for global light truck auto parts distributors, local repair shops and urban logistics fleet maintenance teams.  Product Material Description: Filter Media: High-density multi-layer composite wood pulp filter paper with dense uniform pleats, featuring stable filtration precision, outstanding water repellency, strong demulsification performance and large dirt holding capacity for long-time continuous operation. Matching Sealing O-Ring: Premium NBR nitrile butadiene rubber gasket included, resistant to diesel corrosion, high temperature and low-temperature hardening aging, realizing full tight sealing to completely eliminate fuel leakage at assembly joints. Upper & Lower End Caps: High-strength reinforced integrated black engineering plastic end covers, rigid solid structure that resists deformation under continuous fuel working pressure impact. Internal Support Skeleton: Molded reinforced plastic inner framework, firmly supports pleated filter paper to avoid collapse and distortion caused by instantaneous strong fuel flow pressure.

2020PM 30 Micron Fuel Water Separator Filter  2020PM is a classic 30-micron high-efficiency coalescing fuel water separator filter specially designed to match Racor 1000FG / 1000FH filter assemblies, cross-referenced with Fleetguard FS20203, Donaldson P552024, Caterpillar 1346307 and other mainstream filter part numbers. As the core primary filtration component for heavy-duty diesel fuel systems, this filter adopts advanced water coalescence technology to efficiently capture solid contaminants including rust particles, sand, sludge, carbon residue, and separate emulsified free water from diesel fuel completely before fuel flows into high-pressure fuel pumps and precision injectors. It effectively prevents water corrosion, particle abrasion and internal blockage of delicate fuel system parts. Manufactured fully compliant with original Racor OEM size standards and international filtration industry specifications, it supports a maximum flow rate of 681 LPH with stable working pressure, maintains consistent fuel supply pressure, optimizes full combustion efficiency, improves engine power performance, reduces fuel consumption and black smoke emissions during long-hour heavy-load operation. Widely applied to commercial heavy trucks, marine ship diesel engines, Caterpillar industrial equipment, Cummins power machinery and stationary generator sets. Every finished product undergoes strict water separation efficiency, burst pressure and aging durability testing. We provide abundant spot stock, private label customized packaging and a 12-month quality warranty, serving as a cost-effective aftermarket spare part for global marine parts dealers, heavy truck wholesalers, construction machinery repair centers and fleet maintenance teams.  Product Material Description: Filter Media: High-density multi-layer offset composite wood pulp filter paper with professional pleated structure, 30μm stable filtration precision, excellent hydrophobic demulsification performance, large dirt holding capacity and long service durability. Sealing O-Ring: Premium NBR nitrile butadiene rubber gasket included, resistant to diesel corrosion, high temperature and low-temperature hardening aging, realizing full tight sealing to eliminate fuel leakage completely. Upper & Lower End Caps: High-strength reinforced molded plastic end covers, solid rigid structure that resists deformation under long-term continuous fuel pressure impact. Internal Support Framework: Integrated reinforced plastic central skeleton, firmly supports pleated filter media to avoid collapse caused by instantaneous high fuel flow impact.

801000-1105140 PU1042 OEM Diesel Fuel Water Separator Filter  801000-1105140 is an OEM standard precision fuel filter element cross-referenced with PU1042, specially designed for Yuchai YCK08 Euro 6 electronic common rail diesel engines installed on Dongfeng Chenglong H5 heavy trucks. As a core purification component of the modern high-pressure common rail fuel system, this filter adopts advanced coalescing filtration technology to efficiently capture rust particles, sand, sludge, carbon deposits and emulsified free water mixed in diesel fuel before fuel enters precision fuel injectors and high-pressure fuel pumps. It effectively prevents abrasive wear, blockage and electrochemical corrosion of delicate fuel system core components. Manufactured strictly in accordance with original OEM dimensional standards and IATF16949 automotive quality certification, this filter maintains stable fuel rail pressure, realizes full diesel combustion, improves engine power performance, reduces fuel consumption and exhaust emissions to fully meet Euro 6 emission standards. Widely applicable to Chenglong H5 logistics trucks, dump trucks, passenger coaches equipped with Yuchai K08 power units. Every finished product passes strict burst pressure, water separation efficiency and aging durability tests. We provide abundant spot stock, private label customized packaging and a 12-month quality warranty, which is a reliable cost-effective spare part for global commercial vehicle parts wholesalers, auto repair garages and large truck fleet maintenance teams.  Product Material Description: Filter Media: High-density multi-layer composite wood pulp filter paper with dense pleated structure, featuring stable filtration precision, outstanding water repellency, excellent demulsification ability and large dirt holding capacity for long-term heavy-load operation. Sealing Gasket: Premium NBR nitrile butadiene rubber seal ring, resistant to diesel corrosion, high temperature and low-temperature aging hardening, achieving full tight sealing to eliminate fuel leakage completely. Upper & Lower End Caps: High-strength reinforced engineering plastic end covers with integrated injection molding, rigid structure that resists deformation under continuous high fuel pressure impact. Internal Support Skeleton: Galvanized perforated plastic inner framework, firmly supports pleated filter paper to avoid collapse caused by instantaneous strong fuel flow pressure.

60307173 OEM Fuel Water Separator Filter Cross A14-01460 SN25205 60307173 is a high-precision OEM standard fuel water separator filter specially developed for Sany full-series excavators equipped with Isuzu 4JJ1, Yanmar 4TNV88 and Mitsubishi D06FRC diesel engines, cross interchangeable with part numbers A14-01460 and HIFI SN25205. As the core protection component of construction machinery fuel supply system, this filter adopts advanced coalescence separation technology, which can efficiently capture rust particles, sand, sludge, carbon deposits and emulsified free water mixed in inferior construction-site diesel fuel before fuel enters high-pressure fuel pumps and precision injectors. It effectively prevents abrasive wear, blockage and electrochemical corrosion of delicate fuel system core parts. Manufactured strictly in accordance with original OEM dimensional specifications and ISO international filtration standards, this filter stabilizes fuel delivery pressure significantly, optimizes full diesel combustion, upgrades engine power output, reduces fuel consumption and black smoke emission under long-time heavy-load continuous operation on dusty construction and mining sites. Widely applicable to Sany medium and small excavators, road rollers and matched stationary diesel generator sets. Every finished product passes strict burst pressure, water separation efficiency and durability aging tests. We provide sufficient spot inventory, private label customized packaging and a 12-month quality warranty, which is a stable cost-effective spare part choice for global construction machinery parts wholesalers, repair service centers and engineering fleet maintenance teams.  Product Material Description: Filter Media: High-density multilayer composite glass fiber filter paper with dense uniform pleated structure, featuring stable 10μm filtration precision, excellent water repellency, powerful demulsification performance and ultra-large dirt holding capacity for long-hour continuous operation. Sealing Rubber Gasket: Premium NBR nitrile butadiene rubber ring, resistant to diesel corrosion, high temperature and low-temperature hardening aging, realizing full tight sealing to completely eliminate fuel leakage at assembly joints. Upper & Lower End Caps: Thickened high-strength plastic end covers with integrated molding technology, firm rigid structure, resistant to deformation and cracking under sustained high fuel pressure impact. Internal Central Support Skeleton: Perforated galvanized steel inner tube, firmly supports the pleated filter media to avoid collapse and distortion caused by instantaneous strong fuel flow impact.

4676385 OEM Fuel Filter Replacement Element Cross 4649267 PF7983 P502463 4676385 is a professional OEM-grade cartridge fuel filter specially developed for Hitachi ZAXIS excavators, wheel loaders and engineering machinery equipped with Isuzu 4HK1 and AH6HK1 diesel engines, cross compatible with part numbers 4649267, Baldwin PF7983, Donaldson P502463 and Fleetguard FF5786. As the key precision filtration component of the engineering vehicle fuel supply system, this filter efficiently captures rust particles, sand, sludge, carbon sediment and emulsified free moisture mixed in diesel fuel before fuel flows into high-pressure fuel pumps and precision injectors. It effectively prevents abrasive wear, internal blockage and electrochemical corrosion of delicate fuel system core parts. Manufactured strictly according to original OEM dimension standards and IATF16949 automotive quality specifications, it stabilizes fuel delivery pressure remarkably, promotes complete diesel combustion, boosts engine power output, reduces fuel consumption and black smoke emission under continuous heavy-load construction operation. Widely applied to Hitachi ZAXIS full series excavators, ZW series wheel loaders and matching stationary diesel generator sets. Every finished product undergoes strict burst pressure, water separation efficiency and durability testing. We provide sufficient spot stock, customizable private label packaging and a 12-month quality warranty, which is a reliable stocking spare part choice for global construction machinery parts distributors, repair service centers and engineering fleet maintenance teams.  Product Material Description: Filter Media: Multi-layer high-density composite wood pulp filter paper with dense uniform pleats, featuring stable micron filtration precision, excellent water repellency and ultra-large dirt holding capacity for long continuous working hours. Sealing O-Ring: Premium NBR nitrile butadiene rubber gasket included, resistant to diesel corrosion, high temperature and low-temperature aging hardening, realizing full tight sealing to completely eliminate fuel leakage at assembly joints. Upper & Lower End Caps: High-strength reinforced integrated engineering plastic end covers, rigid structure that resists deformation and cracking under sustained high fuel pressure impact. Internal Support Skeleton: Perforated galvanized steel inner framework, firmly supports the pleated filter paper to avoid collapse and distortion caused by instantaneous strong fuel flow.

1105104E5233 OEM Diesel Fuel Filter The 1105104E5233 is an OEM standard precision fuel filter specially developed for JAC light commercial trucks equipped with Yunnei D25 and D30 diesel engines, perfectly matched for Junling V6, Shuailing Q6, Kangling J5 series models, and used cooperatively with 1105100E5233 filter housing assembly. As the core coarse filtration component of the vehicle common rail fuel system, it efficiently captures rust debris, sand, sludge, carbon sediment and emulsified free water mixed in diesel fuel before fuel enters high-pressure fuel pumps and precision injectors. It effectively prevents abrasive wear, blockage and electrochemical corrosion of delicate fuel system parts. Manufactured strictly in accordance with original OE dimensions and IATF16949 automotive quality standards, this filter stabilizes fuel delivery pressure, boosts full combustion efficiency of diesel, improves engine dynamic performance, reduces fuel consumption and black smoke emissions during daily urban logistics transportation. Every finished product undergoes strict burst pressure, water separation efficiency and durability testing. We provide sufficient spot inventory, customizable private label packaging and a 12-month quality warranty, which is a cost-effective stocking spare part for global light truck auto parts dealers, repair shops and urban logistics fleet maintenance teams.  Product Material Description: Filter Media: High-density multi-layer imported composite wood pulp filter paper with dense uniform pleats, featuring excellent water repellency, large dirt holding capacity and stable long-term filtration precision. Sealing Ring: Premium food-grade NBR nitrile butadiene rubber seal, resistant to diesel corrosion, high temperature and low-temperature hardening aging, achieving full tight sealing to completely avoid fuel leakage at installation joints. Upper & Lower End Caps: High-strength reinforced engineering plastic with integrated injection molding, rigid structure that resists deformation under continuous fuel working pressure. Internal Support Skeleton: Galvanized perforated steel inner bracket, firmly supports pleated filter paper to prevent collapse caused by instantaneous fuel flow impact.