Fuel Filter FS20019 FS20020 FS20021 – Heavy Duty OEM Replacement Diesel Fuel Filter

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Premium heavy-duty fuel filter compatible with FS20019, FS20020, FS20021. Manufactured to OEM standards with high-density hydrophobic filter media, it efficiently traps fine particles, rust, sediment and separates free water in diesel fuel. Precise dimensional fit ensures direct replacement for heavy-duty trucks, commercial vehicles, construction machinery and diesel engines, ideal for aftermarket repair, fleet maintenance and bulk wholesale supply.

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Description

This high-performance heavy-duty diesel fuel filter is designed as a fully interchangeable OEM replacement, covering part numbers FS20019, FS20020, FS20021. Produced under strict international quality control and original equipment dimensional specifications, it supports direct spin-on installation without any cutting or modification, achieving perfect sealing and stable fuel system operation under harsh working conditions.
Adopting multi-layer high-density hydrophobic composite filter paper, this fuel filter delivers excellent filtration accuracy and reliable water separation capability. It effectively removes diesel contaminants such as metal rust, tank sediment, carbon fine particles and other impurities, while separating condensed moisture and free water from fuel flow. It fully protects fuel injectors, injection pumps and the entire fuel system from clogging, abrasion and corrosion, stabilizes engine combustion efficiency, reduces maintenance costs and extends the service life of diesel engines and related components.

Product Core Parameters

  • Filter Type: Heavy Duty Spin-on Diesel Fuel Filter
  • Cross Reference Part Numbers: FS20019, FS20020, FS20021
  • Filter Media: High-density multi-layer hydrophobic synthetic filter paper
  • Core Function: Filter fine impurities, rust and sediment; separate free water from diesel
  • Housing Material: Thickened pressure-resistant steel shell, anti-corrosion and anti-vibration
  • Sealing Gasket: High temperature & oil resistant rubber seal for leak-proof installation
  • Working Temperature Range: -40℃ ~ 125℃, suitable for extreme weather and tough job sites
  • Dirt Holding Capacity: Large contaminant storage volume for extended service intervals
  • Installation Method: Standard spin-on design, quick and tool-free replacement

Compatible Vehicles & Equipment

This fuel filter is widely applicable to European and American heavy-duty semi trucks,
long-haul commercial vehicles, excavators, wheel loaders, bulldozers, agricultural tractors and industrial stationary diesel generator sets.
It matches mainstream diesel engine platforms perfectly and is suitable for logistics fleets,
construction machinery, farm equipment and industrial power units requiring FS20019, FS20020, FS20021 specifications.

Product

Unified OEM dimension enables full interchangeability of FS20019, FS20020 and FS20021, greatly simplifying inventory classification, parts matching and aftermarket quick replacement.
Reinforced steel housing and premium filter material withstand high fuel pressure, mechanical vibration and complex outdoor environments with long-lasting stable performance.
As a professional filter manufacturer, we provide factory direct supply, sufficient spot stock, customized packaging and private label services. Strict quality inspection, competitive wholesale price and fast delivery make it the top choice for global auto parts importers, machinery filter distributors and fleet centralized procurement.