Indmar 53-2018 replacement parts
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Part # 18-1907
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GLM 56140 replacement parts
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Part # 18-1939
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Mercruiser Exhaust Manifold Risers
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Part # 18-1975-1
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Exhaust Elbow, MerCruiser - GLM
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Part # 51110
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Exhaust Elbow, MerCruiser - GLM
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Part # 51140
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Exhaust Elbow, Dry Joint Alternative, MerCruiser - GLM
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Part # 51148
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4 Cylinder Exhaust Elbow, MerCruiser - GLM
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Part # 51160
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Sierra
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Average Customer Review for Exhaust Manifold Elbow Riser - 18-1975-1 - Sierra
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Good all around
by Travis from Ithaca, New York on June 05, 2016
Just what I ordered....
(2 of 3 people found this review helpful)
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Exhaust Manifold Elbow Riser - Sierra
by William from Poquoson, Virginia on May 11, 2012
Perfect fit and with everything I needed included, it installed in minutes.
(4 of 5 people found this review helpful)
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Average Customer Review for 4 Cylinder Exhaust Elbow, MerCruiser - GLM
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4 cylinder GM Exhaust riser elbow
by Dennis from Lostine, Oregon on June 27, 2017
After 800 hours run time, mostly in salt water, on my Alpha 1 Gen 2 Mercruiser, the origional riser elbow started to leak water. After tear down I discovered a lot of rust in the cooling channels and corrosion on the flange surface. Ordered new elbow from I boats, it came with gasket and new bolts. Its a perfect fit, have had no leaks and the engine runs cooler too. At $150.00 total price delivered to my door its a real bargain!!
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Q:
Does this exhaust elbow come with a gasket?
A:
No this does not come with the gasket.

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Q:
Have the 1976 190 omc would like a conversion kit for exhaust manifolds and a idea on what it will cost me and if possible what is included in a kit like this thank you so much?
A:
For conversion kits you will need to contact BRP who owns OMC to see what parts are recommended to convert.

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