Fuel Water Separator Filter FS20121 for Cummins L9 B6.7 Fleetguard 5521648 2020 Plus

Product Overview

Key Features & Performance

Fitment & Compatibility

Common Uses

Technical Specifications

Frequently Asked Questions

The Fuel Water Separator Filter FS20121 efficiently removes water and contaminants from diesel fuel, protecting your engine's fuel system. Designed for modern Cummins L9 and B6.7 engines, this fuel water separator filter ensures reliable performance in heavy-duty applications. It is an ideal replacement for Fleetguard 5521648, providing the same high-quality filtration.

• Efficient water separation technology
• High-capacity filtration media
• Easy spin-on installation
• Durable construction for long service life
• Meets OEM specifications
• Compatible with Fleetguard 5521648 systems

• Cummins L9 (2020+ engines)
• Cummins B6.7 (2020+ engines)
• Vehicles using Fleetguard 5521648 or FS20121 filter

• Diesel truck and bus engines
• Industrial and agricultural equipment
• Generator sets
• Marine diesel engines

• Part Number(s): FS20121, 5521648
• Type: Fuel Water Separator Filter
• Application: Diesel Fuel System

Q: Is this filter compatible with my 2021 Cummins L9? A: Yes, the FS20121 is designed for Cummins L9 and B6.7 engines from 2020 onward. Always verify your engine's specific filter requirements.

Q: What is the recommended replacement interval? A: Typically every 15,000 miles or as per Cummins maintenance schedule for fuel water separator filters.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.