MerCruiser Stainless Steel Center Riser Restrictor Plate 

Direct replacement stainless steel restrictor plate for use with MerCruiser riser #'s 98502, 98504 and 44354.

Replaces Osco 0879.

Fits these applications:

• MerCruiser V6 229 and 262 C.I.D., Models 185R, 185MR, 205R and 205MR (center riser direct replacement).
• MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).
• MerCruiser V8 Models 330, 340 and 454 Magnum, inboard and stern drive units (center riser direct replacement).

• Requires (2) gaskets part # MC47-27-41813.

Compatible parts:

• MC-1-87114 direct replacement water cooled exhaust manifold.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-1-99746 direct replacement water cooled exhaust manifold.
• MC-20-44354 direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle).
• MC-20-98502 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle).
• MC-20-98504 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle).
• MC-20-93320A3 manifold to riser 3" spacer blocks (pair) with fastener and gasket package.
• MC-20-93322A3 manifold to riser 6" spacer blocks (pair) with fastener and gasket package.

Manufactured by Barr Marine. Part number MC-20-99208.