Fleetguard FS20121 Fuel Filter

FS20121 is a high-performance spin-on fuel/water separator engineered for heavy-duty diesel engines in cold chain transport refrigerated trucks, heavy mixers, and municipal sanitation special vehicles. Designed to address fuel contamination and water intrusion in variable working conditions, it acts as a critical safeguard for high-pressure injection systems, preventing costly injector wear, pump failure, and unplanned downtime.

Constructed with a corrosion-resistant steel housing and advanced composite filter media, FS20121 delivers exceptional durability and filtration precision. Its optimized pleat density maximizes dirt-holding capacity, while precision-machined threads and a Viton seal ensure a leak-proof fit even under intense vibration from long-distance transportation and mixing operations. Every unit complies with ISO 4020 standards and OEM requirements to guarantee consistent performance.

Beyond contamination control, FS20121 streamlines maintenance and cuts operational costs. It is fully compatible with diesel, biodiesel blends up to B20, and low-sulfur fuels, adapting seamlessly to diverse fuel supplies. For fleet managers and equipment operators, it stands as a cost-effective solution that balances robust engine protection and long-term operational value.

Advantages of FS20121 Fuel Filter

• FS20121 features a 10μm absolute filtration rating, capturing 99.2% of harmful particulate contaminants per SAE J1985 standards. Its specialized media also achieves 97.8% free water separation efficiency, protecting engines from corrosion and lubrication loss caused by moisture buildup in both urban and long-haul working environments.

• The separator’s heavy-gauge steel housing withstands extreme temperatures ranging from -40℃ to 150℃ and pressure up to 200psi. Its reinforced center tube prevents media collapse under high stress, making it ideal for the frequent start-stop and continuous-load scenarios of sanitation and mixing operations.

• Optimized pleat geometry increases dirt-holding capacity by 32% compared to standard separators, extending maintenance intervals and reducing replacement costs. By safeguarding critical engine components, it minimizes costly repairs and unplanned downtime for special-purpose heavy-duty vehicles.

• FS20121 is a direct-fit replacement for OEM filters in Cummins, Iveco, and MAN heavy-duty engines. Its spin-on design with a bottom drain valve enables tool-free installation and quick water removal, simplifying maintenance without specialized skills or equipment.

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