Mercruiser outdrive parts *SEI lower unit *Alpha 1 repairs

4" Mercruiser exhaust riser 7 degree V6-V8 1987-2001

Riser for Mercruiser and Alpha One GM / Chevy motors Can be used with exhaust manifold P/N 51230 or P/N 51220, V6 and V8 4 inch outlet length, cast iron with improved casting For 185, 205, 262, 200, 228, 230, 898 and 260 models V6 and V8 4.3, 5.0, 5.7 and 7.4 liter applications Riser has 7 degree angle with 4" O.D. Years 1987 to 2001 Manifold and riser have 3 year warranty from GLM Marine Mercruiser manifold or riser exploded view drawings click here

51140 Mercruiser 4 inch GM Chevy OEM 807988Q03

P/N 51140 4 inch riser / elbow assembly - Replaces Mercury 807988Q03. Includes installation screws and gasket. V6 and V8 4.3, 5.0, 5.7 and 7.4 liter applications Riser has 7 degree angle with 4" O.D. Years 1987 to 2001 $202.89 US $262.89 CDN Included P/N 51140 Cast iron elbow / 807988Q03 P/N 22381 Screw / 10-43749 x 4 P/N 30240 Riser gasket / 27-863724 P/N 21892 Steel plug / 22-41622

Photo	Description / OEM #	Price (USD)	Price (Canadian)
89120	P/N 89120 Upper 4 inch bellow, for elbow P/N 51140. 807988A2	$36.89	$47.89
51220-51140	P/N 51220-51140 Manifold and riser set for 4.3L V6 models. Can be used on port or starboard.	$484.89	$629.89
51110 Elbow	P/N 51110 Replacement 3" 15 degree elbow assembly for older models with mounting hardware and gasket. 98504A3	$236.89	$307.89
50300 Spacer	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	$115.95	$152.95
36160 Head gasket	P/N 36160 GM 5.0L, 5.7L small block CID 305 350 marine head gasket. 27-75611	$39.89	$51.89
12120 Water pump	P/N 12120 Impeller water pump kit with housing. Compatible with MR/Alpha One models 1984 - 1990, serial numbers 6854393-OD469858.	$48.89	$63.89

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