Fuel Filter FF006 — Extended Service Spin-On Fuel Filter for Cummins X15 & X12 75

Steinberg

FF006 Fuel Filter for Cummins X15 / ISX15: Fleetguard FF5825NN Equivalent

Name: FF006 Fuel Filter for Cummins X15 / ISX15: Fleetguard FF5825NN Equivalent
Brand: Steinberg
SKU: FF006
Price: 26.11 USD
Availability: InStock

SKU: FF006OEM: 5365988Cross: FF5825NN, FF5776, 4331007, ...

Confirmed Vehicle Compatibility

Kenworth T680 (Cummins X15)Kenworth T880 (Cummins ISX15)

Kenworth W900 (Cummins ISX15)Peterbilt 579 (Cummins X15)Peterbilt 389 (Cummins ISX15)Freightliner Cascadia (Cummins X15)Volvo VNL (Cummins ISX15)International ProStar (Cummins ISX11.9)

$26.11

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OEM-grade certified

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Thread Size

M90 x 2.0-7H INT

Outer Diameter

120 mm (4.74 in)

Height

227 mm (8.92 in)

Filter Media

Synthetic (4 micron, 99.2% efficiency)

OEM Reference

5365988

Cross Reference

FF5825NN, FF5776, 4331007, 5365988, 5599456, BF46129, DBF6776, WF10515

Kenworth T680 (Cummins X15)Kenworth T880 (Cummins ISX15)Kenworth W900 (Cummins ISX15)Peterbilt 579 (Cummins X15)Peterbilt 389 (Cummins ISX15)Freightliner Cascadia (Cummins X15)Volvo VNL (Cummins ISX15)International ProStar (Cummins ISX11.9)

Not sure about your truck? Contact us with your make, model and year — we'll confirm compatibility within 1 business day.

Prepare & Safety First

Park on level ground, engage parking brake. Allow engine to cool for at least 30 minutes. Have drain pan and proper tools ready.

Remove Old Filter

Use a filter wrench to loosen and remove the existing filter. Let residual fluid drain completely into your pan.

Prep New Filter

Apply a thin coat of clean oil or fuel to the new filter's gasket seal. This ensures a proper, leak-free seal.

Install & Torque

Thread the new filter on by hand until gasket contacts, then tighten 3/4 to 1 full turn. Do NOT over-torque.

Start & Verify

Start the engine and let it idle for 2–3 minutes. Check for leaks. Check fluid level and top off if needed.

Download Full Installation PDF →

About This Filter

The Steinberg FF006 is an extended service spin-on fuel filter engineered specifically for Cummins X15 and ISX15 diesel engines. Using advanced 4-micron synthetic media at 99.2% filtration efficiency, it delivers superior protection for high-pressure common rail injection systems. This is the only Cummins-approved filter for X15 and X12 applications, making it the required choice for Cummins warranty compliance.

Carries Cummins OEM part number 4331007 and is a direct replacement for Fleetguard FF5825NN (upgraded from FF5776). Replace at each PM service interval per Cummins specifications.

Compatible Part Numbers

FF006 Fuel Filter for Cummins X15 / ISX15: Fleetguard FF5825NN Equivalent (SKU: FF006) is a direct replacement for the following OEM and aftermarket part numbers:

FF5825NNFF5776433100753659885599456BF46129DBF6776WF10515

OEM Reference Number

The OEM reference number for this filter is 5365988. Use this number to verify fitment with your truck manufacturer's parts catalog.