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Light Duty Replacement Filters

made in the usa stamp

All orders over $200 Have free shipping within the continental US

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Filter Cross References:

For maximum performance, use of our fuel filters and water separators above are recommended, as the filters were designed for use with the AirDog®, Champ™, and Champ II™ systems. If you need filter cross-reference info, please refer to the lists below.

For FPII-125, click here.

For FPII-150, FPII-200, Champ, and Champ II (Detroit only), click here.

blue semi truck

From February 2nd-13th, 2026! Use Code FILTER26 for 20% Off your purchase plus free shipping on all orders over $200!

* Free shipping over $200 applies to lower 48 United States only

From 3/26/26 until 4/3/26! Use Code mATS26 at checkout for 20% Off your purchase plus free shipping on orders over $200!