1990 7.4 magnum fuel pump

[995jim]

Hello, Would it be a good idea to replace my fuel pump on a 1990 7.4 Mercruiser as a proactive measure? Its not giving me any trouble currently, and is original equipment.
​thanks jim

 

[alldodge]

Howdy

If you know its the original, it would be a good idea. Being it is block mounted need to check your oil every so often. I would get the Airtex model 60932, it will cost much less then the Merc model. Airtex makes the fuel pump for Merc, just doesn't have the black paint on it

 

[995jim]

that part number lists 1992 and up . so would 1990 be different part number ?

 

[Fun Times]

that part number lists 1992 and up . so would 1990 be different part number ?

Looks like there's possibly going to be a difference between the two designs and part number wise.
Here would be your two options for brand names/part numbers for your engine year range, http://www.mercruiserparts.com/bam/subassembly/31920/959/90
http://www.mercruiserparts.com/7-4l-bravo-gm-454-v-8-1988-1991-0b7711

Also this fuel pump is available through iboats as well in aftermarket, http://www.iboats.com/Boat-Parts-Ac...--searched.1--**********.619261528&q=862048A1

 

[995jim]

thank you for the info. I was looking at different brands and am trying to figure out what the difference between a sierra 18-7288 and 18-7288-1 is . Not sure if it is a serial number update, gph difference .I obviously have to replace with correct pump like which is shown on the site you provided . Any idea who might know the answer to this question ?

 

[alldodge]

Delete sorry wrong thread