Overview
Tired of expensive FAUDI original spare parts and long overseas delivery delays? Our replacement FAUDI P.4-965 coalescer filter is a premium cost-effective aftermarket solution tailored to replace the original P-series coalescing element. Produced strictly referencing original FAUDI design standards and EI 1581 aviation filtration specifications, this substitute achieves basic matching with most original filter housings. It delivers professional-grade oil-water coalescence separation and high-precision impurity interception performance, perfectly matching the working requirements of aviation fuel systems, oil depots and petrochemical equipment. With stable operation, longer service life and ultra-fast supply capacity, it is the ideal drop-in alternative to costly imported FAUDI P.4-965 original filters.
Application Scenarios
1. Aviation Fuel Purification: Specially used for coalescing filtration of jet fuel and aviation kerosene in airport refueling trucks, underground hydrant pipeline systems and aviation fuel depots. It efficiently removes emulsified micro-water and fine solid particles, protecting aircraft engines and fuel delivery systems from corrosion and blockage.
2. Large Oil Depot & Refinery Filtration: Suitable for gasoline, diesel and kerosene filtration during tank truck unloading, pipeline transportation and fuel storage. It eliminates free water and impurity sediments in bulk fuel, effectively reducing equipment corrosion and improving fuel cleanliness.
3. Petrochemical Industrial Filtration: Perfect for light hydrocarbon oil, solvent oil and low-viscosity industrial fuel filtration. The optional FKM sealing material resists chemical corrosion and medium swelling, adapting to complex petrochemical working conditions.
4. Engineering & Marine Fuel System: Stably applied to mobile fuel supply equipment for construction machinery, mining equipment and marine fuel separators. It maintains stable coalescing performance under frequent vibration and variable flow operating environments.

Core Competitive Advantage VS Orignal
1. Basic Universal Adaptability: This replacement coalescer filter basically matches the original P.4-965 size, end cap structure and sealing groove parameters. It can be directly installed in most original FAUDI filter housings without pipeline modification or equipment renovation, zero extra installation cost and downtime loss.
2. OEM-Level Coalescing Performance: Adopts upgraded gradient hydrophobic coalescing media with professional demulsification, coalescence and interception three-layer structure. The dehydration accuracy and impurity filtration performance fully reach original factory standards, ensuring the same fuel purification effect as genuine parts.
3. Enhanced Durability & Longer Service Life: Optimized media folding density improves dirt holding capacity, effectively slows down differential pressure rising speed during long-term operation. Its stable service cycle is better than ordinary generic replacement filters, reducing frequent replacement frequency.
4. More Flexible & Practical Configuration: Different from the single fixed sealing option of original FAUDI filters, it supports dual NBR/FKM sealing matching, freely adapting to conventional fuel and special chemical media, covering more working scenarios.
5. Super Cost-Performance & Fast Supply: Completely get rid of the limitations of high import price and long 30–60 days overseas delivery of original parts. We keep standard P.4-965 filters in stock for same-day delivery, customized products completed within 3–7 working days, cutting 40%+ of long-term procurement costs.
Optional Available Models
-Series A / Y Series
A.1-559, A.1-842, A.3-842, A.4-727, A.6-467, A.6-842
Y.1-842/5, Y.4-467/5, Y.4-559/5, Y.4-842/5, Y.6-362/5, Y.6-559/5, Y.7-362/5, Y.7-842/5, Y.7-1422/5
-MIL Series
MIL.1-842, MIL.3-467, MIL.3-559, MIL.3-842, MIL.3-965, MIL.4-279, MIL.4-362, MIL.4-559, MIL.4-727, MIL.4-842, MIL.4-965, MIL.4-1093,
MIL.4-1422, MIL.6-362, MIL.6-559, MIL.6-842, MIL.7-362, MIL.7-559, MIL.7-727, MIL.7-842, MIL.7-965, MIL.7-1093, MIL.7-1422
-K Series
K.1-842, K.3-467, K.3-559, K.3-842, K.3-965, K.4-279, K.4-362, K.4-559, K.4-727, K.4-842, K.4-965, K.4-1093, K.4-1422, K.7-362, K.7-559, K.7-727,
K.7-842, K.7-965, K.7-1093, K.7-1422
-P Series
P.1-842, P.3-467, P.3-559, P.3-842, P.3-965, P.4-279, P.4-362, P.4-559, P.4-727, P.4-842, P.4-965, P.4-1093, P.4-1422, P.7-362, P.7-559, P.7-727, P.7-842,
P.7-965, P.7-1093, P.7-1422
-D & DC Series
D.1-362, D.1-842, D.6-467
DC.1-842-xx, DC.4-279-xx, DC.4-362-xx, DC.4-559-xx, DC.4-727-xx, DC.4-842-xx, DC.4-1093-xx, DC.4-1422-xx, DC.7-362-xx, DC.7-559-xx,
DC.7-727-xx, DC.7-842-xx, DC.7-1093-xx, DC.7-1422-xx
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