Replaces OEM part #
- MERCURY MARINE 44354A3
- MERCURY MARINE 807988A2
most Mercruiser V-6 & V-8 applications 7° (4" O.D. Riser)
Comes with 18-0897,18-4263 & 18-4258
Manifold: 18-1952-1, 18-1953-1, 18-1957-1
Riser Gasket: 18-0897 restrictor, 18-2849 open, 18-0672 blocked
Mounting Kit: 18-8505, or if spacer is included use 18-8555
This product ships in 1 business day.
Add to Cart and enter your Postal Code to determine the shipping charges and estimated delivery date.
* Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies