Amazon: duramax fuel filter head for Duramax Fuel Filter Head Rebuild Seal KIT RELIABLE VITON Plunger Seals O-Rings & Screw Quick Delivery. $17 $ 17. 00. FREE Shipping. Only 8 left in stock - order soon. Aluminum Air Bleeder Screw Fuel Filter Housing Compatible Replacement for GM Buick Cadillac GMC Pontiac Saturn Hummer Chevrolet 2001-2016 Duramax Diesel. GM 12642623 Fuel Filter Head Assembly - XDP The GM 12642623 Fuel Filter Head Assembly for your 2004.5-2010 GM 6 Duramax is an OE factory replacement for your GM Duramax. Over time, the stock fuel filter head can leak or become damaged causing poor running conditions, hard starting and more.