FS20121 Fuel Water Separator Filter for Cummins L9 B6.7 V QSB QSL Engine

Product Overview

This aftermarket replacement fuel water separator filter is intended for the listed Cummins engine applications and is identified by part number FS20121. A fuel water separator filter helps remove contaminants and separated water from diesel fuel before it continues through the fuel system.

Key Features & Performance

• Helps separate water and filter contaminants from fuel.
• Supports routine servicing of the associated diesel fuel system.
• Uses part number FS20121 for identification and comparison.
• Listed for the specified Cummins engine applications.

Fitment & Compatibility

• for the listed Cummins L9, B6.7, V, QSB, and QSL engine applications

Common Uses

• Replacing a contaminated, restricted, or malfunctioning fuel water separator filter.
• Routine maintenance of the diesel fuel system.
• Servicing the fuel filtration system associated with the listed engines.

Technical Specifications

• Product Type: Fuel water separator filter
• Part Number(s): FS20121
• Engine Application(s): Cummins L9, B6.7, V, QSB, QSL Engine

Frequently Asked Questions

Q: What does a fuel water separator filter do? A: It helps remove water and contaminants from fuel before the fuel continues through the engine fuel system.

Q: How should fitment be verified? A: Compare the complete part number FS20121 with the existing filter and confirm the complete Cummins engine designation before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.