How often should I replace my fuel filter?

Refer to your vehicle's owner's manual for the manufacturer's recommended fuel filter replacement interval. Factors like fuel quality and driving conditions can affect filter life, so inspect it regularly.

What are the signs of a clogged fuel filter?

Common symptoms include difficulty starting, rough idling, decreased fuel economy, and stalling. If you experience these issues, replacing the fuel filter is a good first step.

Does this filter come with installation hardware?

This K&N fuel filter is designed to be a direct replacement for your factory filter. Retain and reuse the original hardware during installation. Refer to the manufacturer's installation instructions for details.

K&N 03-09 Dodge Ram 5.9L L6 Diesel 3.375in OD x 3.969in L Fuel Filter

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Specifications

Brand: K&N
Part #: PF-4200
UPC: 024844351753

K&N 03-09 Dodge Ram 5.9L L6 Diesel 3.375in OD x 3.969in L Fuel Filter

Name: K&N 03-09 Dodge Ram 5.9L L6 Diesel 3.375in OD x 3.969in L Fuel Filter
Brand: K&N
Price: 31.99 USD
Availability: InStock

$31.99

On Backorder — Expected to ship by Apr 4, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

High-flow fuel filter protects your 2003-2009 Dodge Ram 5.9L diesel.

Key Features

High flow rates — supports performance applications
Cellulose glass media — traps contaminants
Direct fit — installs like the original filter

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits these vehicles

Dodge Ram 2500 2000-2009
Dodge Ram 3500 2000-2008

Product Details

The K&N Performance Cartridge Fuel Filter is built for high flow rates and filtration capacity while providing outstanding fuel filtration. The filter is designed with high performance cellulose glass media that traps contaminants such as rust, dirt, scale and other foreign materials.