Fuel Pump for 2003 Mercury 3.0/135

[cdecandia]

I need to replace my fuel pump on my '03 Mercruiser 3.0. I plan on ordering the pump online. Can anyone out there confirm the model #? The one I found is a Sierra International P/N 18-7282 but I can't for the life of me find anything to confirm it is the correct part.

 

[Don S]

Re: Fuel Pump for 2003 Mercury 3.0/135

Why do you think you need a new pump? Have you checked/replaced the filter in your old one? Have you checked the fuel pump pressure? Is there a problem with the supply of fuel to your pump?

 

[cdecandia]

Re: Fuel Pump for 2003 Mercury 3.0/135

I was going to just replace the filter which was in very bad condition (rusted to the bottom of the pump) and ended up 'butchering' the metal housing for the filter. I then called the dealer to order the filter and the housing at which point I learned the housing comes with the pump and cannot be ordered separately. The dealer said they do not have the pump in stock so I decided to order it myself to save a few dollars but want to ensure I order the correct part.

 

[Don S]

Re: Fuel Pump for 2003 Mercury 3.0/135

Yes, the 18-7282 is the correct pump. I would also strongly suggest you install a water separating fuel filter like this one so you don't get water in your pump.
And change the filter element at least yearly. If there is a lot of water in your tank, you might want to consider getting the water out. Hate to think what your carb must look like inside.

 

[cdecandia]

Re: Fuel Pump for 2003 Mercury 3.0/135

Thanks Don!
One more question. What would you recommend I use for a gasket sealer on the pump?

 

[Bondo]

Re: Fuel Pump for 2003 Mercury 3.0/135

Thanks Don!
One more question. What would you recommend I use for a gasket sealer on the pump?

Ayuh,.... Clean the block's surface, 'n install the gaskets, Dry...