This carburetor upgrades the Mercury 9.9HP (2006 and Newer) 4-stroke outboard engines to 15hp. Fits both standard and Bigfoot models. No modifications are necessary, simply swap out the carburetor.
If you are unsure of the model year, or if you have a 2006 or 2007 which could be either type, see the picture below. This carburetor will upgrade the 2006 and Newer style outboards. If you have the 1999-2007 style, use this 15hp upgrade carburetor: 1997-2007 9.9 HP High Performance Upgrade Carburetor
These carburetors are in stock and ship out the same business day if ordered before 3PM Eastern - after 3PM they will ship out next business day. Our flat rate shipping is USPS Priority which is 2-3 business days to most of the U.S. UPS Next Day and Second Day Air is available during checkout if you need it quicker.
Your carburetor may have an additional hose connection or two (one coming out of the top of the carburetor). Those are breather hose connections that are not necessary for use with this carburetor. The hose can be tucked securely away or removed altogether when you install this carburetor. We include documentation about this with the carburetor.
