This high pressure fuel pump fits the Mercury 100HP 4-Stroke outboards (2006-2013 - Serial #s 1B366823 through 2B494018)
If you have a lower Serial # than 1B366823, please see this fuel pump:
Mercury 115HP 4-Stroke (2001-2006) High Pressure Fuel Pump
We also sell the low pressure lift pump for this outboard, that can be found here:
https://www.readysetboat.com/mercury-115hp-efi-4-stroke-low-lift-pressure-fuel-pump.html
We stock all of our products and ship quickly (usually either the same day or next business day) from Massachusetts.