Long story short - destroyed a gear case on a pair of 250EFI's and a friend recommended I call SEI, Now I know why. Excellent customer service! Walked me through the whole process, verified everything by engine serial number and gave me the confidence they knew exactly what they were talking about. Ease of ordering and fast delivery with both gear cases showing up the next day - easily identified and professionally packaged. Took about 22 minutes per motor to un-package, prep and install. The price was so favorable it made sense to replace them both and start fresh! All around a great experience! Well done SEI!