Oil Gasket Set for 99-09 Lincoln Navigator Mark LT Ford Mustang Expedition F250 F150 4.6L 5.4L V8 VIN Code 6 W Z A R V M Sealer Oil Pump Inlet Tube Kit by Detoti Auto Parts OIL PAN GASKETThe oil pan gasket seals the oil pan to the bottom of the engine; The engine has a lot of moving parts that need to be kept lubricated by the engine oil; without which the parts will damage each other; If the oil is leaking; you may see an engine oil warning light in the dashboard. WATER PUMP O RINGA coolant leak coming from the weep hole is a sign of water pump bearing or seal failure. This weep hole often resides between seals that separate the oil side from the coolant side OIL FILTER ADAPTER O RINGThe oil has to go through an oil filter to keep it clean and this filter is equipped with an adapter and o-ring. OIL PAN DRAIN PLUG O RINGA 'washer' or o-ring that seals the oil drain plug contact point to help prevent leaks at oil pan drain hole. We are the ONLY Licensed Sellers of Detoti Auto Parts (est.1993). Please Do Not Except Any Imitations!