Water Cooled Risers — Thru Transom
- Thru-transom exhaust outlets on low freeboard hulls may allow water to enter the engine. To prevent possible damage to valve chambers and other internal parts, exhaust risers are a must.
- Fits header type manifolds only
- 4-7/8" Flange size
- 3" Hole size
- 2-7/8" or 3-1/2" ID Hose Size
- Cast aluminum
- Undrilled (no holes)
- Sold per pair