6.6L Duramax Fuel Filter Adapter To Convert To Caterpillar Spin On Fil | RCD Performance
Fuel Filter Adapter 3/4-16,13/16-16,3/4 NPT to 1/2-28 ,5/8-24 Adapter
Amazon.com: 8AN High Flow Inline Fuel Filter Kit with Bulkhead Adapter, Push-On Fitting and Fuel Pump Filter Bracket for 1/2 Fuel Hose Line, Great for Gasoline, E85 Ethanol Fuel and Diesel :
Car Fuel Filter 1/2-28 to 3/4-16 13/16-16 3/4NPT Threaded Oil Filter Adapter | eBay