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K&N 03-09 Dodge Ram 5.9L L6 Diesel 3.375in OD x 3.969in L Fuel FIlter - K&N Engineering KNNPF-4200
K&N 03-09 Dodge Ram 5.9L L6 Diesel 3.375in OD x 3.969in L Fuel FIlter - K&N Engineering KNNPF-4200
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K&N 03-09 Dodge Ram 5.9L L6 Diesel 3.375in OD x 3.969in L Fuel FIlter

KNNPF-4200
024844351753
Fuel Filters
1108 Units In Stock
$ 36.00 $ 31.99
$ 31.99

The K&N PF-4200 is a performance cartridge fuel filter designed for 2003-2009 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L Cummins L6 diesel engine. It delivers high flow rates and large filtration capacity to keep fuel systems clean and efficient. This direct-fit filter uses cellulose glass media to capture contaminants while maintaining strong fuel delivery.

Key Features

  • Diesel Specific Design: Built for 5.9L Cummins fuel systems with precise dimensions of 3.375in OD x 3.969in length.
  • High Capacity Pleats: Increases surface area for longer service intervals and consistent performance.
  • Low Restriction Media: Enables maximum fuel flow to support engine power without pressure drops.
  • OEM Direct Fit: Matches factory specifications for simple drop-in installation on compatible Rams.
  • Replace at manufacturer-recommended diesel fuel filter service intervals.
  • Drop-in OEM fit requires no modifications or special tools.

Fitment

Years Make Model Application
2003-2009 Dodge Ram 2500 Laramie, SLT, Sport, ST, TRX4
2003-2009 Dodge Ram 3500 Laramie, SLT, ST, TRX4

Specifications

Brand K&N Engineering
Manufacturer Part Number PF-4200
Product Type Fuel Filters
Fitment Type Vehicle Specific
Condition New

What's Included

One new K&N fuel filters identified by manufacturer part number PF-4200. Hardware, adapters, clamps, hoses, filters, and service supplies are included only when stated for this exact product.

About K&N Engineering

K&N develops reusable air filtration, intake, oil filtration, fuel filtration, and related performance products for vehicle-specific and dimensional applications.

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Frequently Asked Questions

How do I confirm K&N PF-4200 fits my vehicle?
Match the year, make, and model in the fitment table, then confirm the engine, factory housing, sensor layout, emissions notes, and any application restrictions stated for this exact part.

Is K&N PF-4200 washable and reusable?
Serviceability depends on the exact media used for this part number. Follow the K&N cleaning and oiling directions for this filter and never apply oil to media specified as dry.

What should be checked after installing K&N PF-4200?
Verify seals, clamps, fasteners, hoses, sensors, wiring, and surrounding clearance as applicable. Check for leaks or contact, then follow the manufacturer service and reinspection schedule.

Installation Instructions

  • Drop-in OEM fit requires no modifications or special tools
  • Compatible with factory fuel lines and mounting hardware
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