Buy Sierra International 18-1971 Marine Manifold Elbow for Mercruiser Stern DriveSierra International 18-1971 Marine Manifold Elbow for Mercruiser Stern Drive Product Description:
- SIERRA Marine 1971, SIE1971
Product Description
Exhaust Elbow RiserDirect replacement exhaust elbow riser (stern-drive)
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Mercruiser Exhaust Riser
By Fishin Az
Put this on a 1979 Mercruiser 140, along with a new aftermarket exhaust manifold. Great combination! No leaks and runs at the perfect recommended 140 degrees. Easy install. Definately recommend replacing both riser and manifold and especially recommend replacing the studs & nuts. Trying to remove the old ones is a huge pain. Be safe, do it right, dont be cheap!
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