The BEST Cummins/Duramax CAT Fuel Filter Kit Available Filters fuel better than any existing secondary fuel filter kit on the market. Filters take less than 10 minutes to change every 15,000 miles. Filters can be bought affordably and easily all over the US and Canada. Our brackets mount 2" higher than most brands completely hiding it inside and above the frame rail for protection.Cummins · Duramax · Filters and Parts remote fuel filter kit | eBay Find great deals on eBay for remote fuel filter kit. Shop with confidence. Skip to main content. eBay Logo: MERCURY MARINE REMOTE MOUNTING WATER SEPARATING FUEL FILTER KIT 802893A4 See more like this. MERCURY MARINE REMOTE MOUNTING WATER SEPARATING FUEL FILTER KIT 8M0095669. Brand New. $168.