Mercruiser 340hp 7.4 Oil / Fuel Filter + More

[hola]

Hi there!

I have been recently been given the mission by a close friend to start working on a 1986 Sea Ray Sedan Bridge with 2x Mercruiser 340hp 7.4 inboards. While my initial thoughts were only interior work, I have started looking into getting things such as oil filters, fuel filters, oil changes, and spark plugs done for now.

I do not have the manual for the boat / engines and the filters stickers are faded so I am unsure where to find the information pertaining to parts to purchase. I called West Marine but they gave me a general filter which may or may not fit this model. I tried Google but numerous replies left me a bit unsure. From what I've found so far, Wix Filters / NAPA may be the way to go. Would these work? https://www.napaonline.com/en/searc...cruiser_marine/7.4l_340_hp_mie/1985/201579748

Experts of this forum...

Any ideas which oil filters/fuel filters/spark plugs/oil I should be looking at for this specific boat / engines?

Looking forward to the feedback from the forum and starting my journey on this fun boat.

Thanks and nice to be here!

 

[Turtle Blues]

mercruiserparts.com has one of the easiest diagram databases for parts lookup. believe furthest back is '88 which should be applicable for most peripheral things.

 

[rslifkin]

I've got the same engines (Mercruiser 340 MIE). Spark plugs are AC Delco MR43t or the equivalent cross reference. Oil filter is a Wix 51086. Fuel filter is a Racor PFF5510 or the OE Mercury/Quicksilver filter.

 

[Comodave]

Welcome aboard.

 

[hola]

Yay i am glad I got some responses. Thanks Turtle Blues and rslifkin, I will look into those.

Hi Comodave, thanks