2005-2007 Mercury 135 150 175 200HP Verado 4 Stroke 4Cyl. Crankcase  880504A13. This crankcase came off a running motor that  had good compression.  The cylinder walls are very smooth to the touch. There are a few vertical line undetectable by touch or fingernail. I learned that impurities in the oil some times cause this but they do not affect function. Fast free shipping!