OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives
V6 and V8 4.3, 5.0, 5.7 and 7.4 liter applicationsRiser has 7 degree angle with 4″ O.D.Years 1987 to 2001
P/N 51220-51140 Manifold and riser set for 4.3L V6 models. Can be used on port or starboard.
P/N 51110 Replacement 3″ 15 degree elbow assembly for older models with mounting hardware and gasket.98504A3
P/N 50300 3 inch spacer. This raises the height of the elbow if more space is required for installation of hoses and bellows. 93320A14
P/N 36160 GM 5.0L, 5.7L small block CID 305 350 marine head gasket.27-75611
P/N 12120 Outdrive water pump impeller kit with housing. Compatible with MR/Alpha One models 1984 – 1990, serial numbers 6854393-OD469858.