Fuel Filters

Fuel Filters

Quick answer: 149 Kaltreo OE-equivalent fuel filters, each cross-referenced to a Fleetguard part and other major brands for diesel generators and engines. Search by any part number or engine below to jump straight to your replacement, or browse the full list.

🔎 Find your exact replacement

Type any brand's part number — Fleetguard, Wix, Baldwin, Donaldson and more — or your engine model. The search checks every cross-reference number across all 149 parts, not just what's printed on each card.

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About Kaltreo fuel filters

Fuel filters and water separators strip dirt, rust and water from diesel before it reaches the injection pump and injectors — the parts most easily destroyed by contamination. Kaltreo elements match OE micron ratings and thread sizes, with primary (coarse) and secondary (fine) stages where the engine calls for them. Draining the separator bowl regularly keeps water out of the high-pressure system.

How to read a Kaltreo cross-reference

Every Kaltreo part lists the Fleetguard number it replaces plus interchange numbers from other brands (Wix, Baldwin, Donaldson, Mann and more). Find your current filter's brand and number — in a card or with the search above — and the matching Kaltreo part is the direct replacement. Confirm thread size, gasket dimensions and valve settings on the part page before ordering.

When to replace: every 500 running hours or annually, and drain the water bowl at each service. See the filter replacement schedule guide for full intervals, and always follow the engine maker's manual.

Coming from another brand's numbers? Use the full Fleetguard cross reference, CAT cross reference or Baldwin cross reference tables.

Frequently asked questions

How often should a fuel filter or water separator be replaced?

Typically every 500 running hours or annually, whichever comes first, and drain the water-separator bowl at every service. Dirty or off-spec fuel shortens that interval.

What is the difference between a primary and secondary fuel filter?

The primary filter is coarser (often ~10–30 microns) and protects the lift pump; the secondary is finer (often ~2–5 microns) and protects the injectors. Engines that use both need both replaced.

Do Kaltreo fuel filters separate water?

Water-separator models coalesce free water so it drops into a bowl you drain manually. Check the specifications on the part page to confirm whether a given part includes separator function.

Brand names and part numbers are the property of their owners and are used for reference and interchange identification only.

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