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Osco Manifolds and Risers Since 1932


We carry a full line of Mercruiser, OMC, Volvo, Crusader and Pleasurecraft Marine Exhaust Manifolds, Risers and Elbows.

OSCO Motors Co. has been in the business of providing boaters with a high quality, reasonable cost alternative to original manufacturer's equipment. OSCO’s marine exhaust systems are made in the USA with pride. We deal directly with the most skilled iron foundries in the USA. All design, machining and processing is done at OSCO’s manufacturing facility in Hatfield, Pennsylvania.

If you can't find what you need below visit our older Osco Catalog Here.

We also have a complete line of Barr Manifolds and Risers Click Here

     Chris Craft Manifolds Risers

     Chrysler Manifolds Risers

     Crusader Manifolds Risers

     Indmar, Barr, Marine Power Manifolds & Risers

     Mercruiser Manifolds Risers

     OMC Manifolds Risers

     Osco Conversion Manifolds

     Osco Generic Manifolds

     Pleasurecraft Manifolds Risers

     Volvo Manifolds Risers

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