MerCruiser Cast Iron Riser Expansion Tank Replaces 90880A2 

Direct replacement (cast iron) exhaust riser/expansion tank.

Replaces MerCruiser 90880A2 and Mallory 9-40550.

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.'s are achieved after replacing an OEM manifold with Barr replacement parts.

• Replaces MerCruiser part # 90880A2.
• Includes plugs, gasket and mounting hardware to mount to the manifold.
• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Manufactured by Barr Marine. Part number MC-20-90880.