GM Genuine 12705663 Rear Engine Cover With Main Seal For 2014+ L83 L86 L87 L84 Truck Engines

If you're building or repairing a late-model GM truck engine with an L83, L86, L87, or L84, this is the part you need.

It's a brand new, genuine GM rear engine cover that comes with the main seal already installed.

This is the cover that bolts to the back of the engine block, sealing the crankshaft.

It's the OEM part number 12705663.

Using a genuine GM part ensures a perfect fit and proper sealing right out of the box.

No guessing, no returns for the wrong part.

Whether it's a 2014 or newer, this is the exact piece to button up the back of your engine.