YHTAUTO oil pan products are divided into engine oil pan and transmission oil pan. The engine oil pan is attached to the bottom of the engine with bolts and is the reservoir for oil that gets pumped throughout the engine to lubricate, clean and cool moving parts. The transmission oil pan keeps your transmission fluid safe and reliable. When you turn off the vehicle, the oil pan can be used as a sump. Over time, the oil pan may fail due to the extreme hood conditions during your ride. To solve this problem, you'd better get a good replacement oil pan immediately. Item Specification Item Type: Engine oil pan Reference Number: 12587315, 12600497, 31100991, GMP63A Vehicle Information Hummer H3T 2009-2010 L5 3.7L Petrol Sport Utility Hummer H3 2007-2010 L5 3.7L Petrol Sport Utility Hummer H3 2006 L5 3.5L Petrol Sport Utility GMC Canyon 2008 L5 3.7L Petrol Standard Cab Pickup 4WDGMC Canyon 2005 L5 3.5L Petrol Extended Cab Pickup 4WDChevrolet Colorado 2007 L5 3.7L Petrol Standard Cab Pickup 4WDChevrolet Colorado 2004-2006 L5 3.5L Petrol Extended Cab Pickup 4WD Please confirm the vehicles' model, year as well as the engine size when you purchase! Damaged or Malfunctioning Performance---Engine Oil Pan Having puddles of oil under your car is one of the first things that you may notice when it is time to replace. Noticing the oil leak and getting it fixed is the best way to avoid serious damage to your car. Over time, the oil drain plug will be damaged and may begin to leak. The drain plug also contains an extruded gasket that will fail over time or will fail if it is not replaced. When passing through the lower part of the oil passage, the oil pan may be bumped or sunken. This impact damage can be a fast leak or something that begins as a drip and steadily gets worse. General Instruction on How to Replace the Oil Pan 1.Use jacks and jack stands to lift and support your vehicle 2.Ensure that the pan in placed just below the tank from where the oil will flow. 3. Remove the mounting bolts and drain the oil. 4.Using the socket, and loosen the old pan. 5.Remove the existing oil pan. Use a clean rag to remove any metal debris. 6.Run a bead of the sealant used to hold the fiber gasket to the new oil pan and install the gasket. 7.Make sure the holes for the bolts in the gasket and pan match each other and then install. 8.Tighten the screws or bolts until they start to snug. 9.Replace the old oil filter and add the proper amount of oil. Make sure to watch for leaks. The above steps are for reference only, and we recommend you to ask the technician to do the replacement.