Fuel Filters | Cross Reference | Alliance Truck Parts Fuel Filters Fuel Filters. Alliance Fuel Filter/Water Separator filtration systems come equipped with patented Aquabloc® media. Aquabloc media is a chemical treatment that is applied to the media to help dirtproof, rustproof, and waterproof your engine. Car & Truck Fuel Filters | eBay www››Car & Truck Parts›Car & Truck FiltersCar & Truck Fuel Filters. Do these parts fit your vehicle? Find out now. Enter vehicle info. Tell us about your vehicle to find the right parts faster + Deals & Savings. Trending price is based on prices over last 90 days. 2013-2018 RAM Truck 6 Mopar OEM Diesel Fuel Filters 68197867AB .