I am looking for a fuel line for my 1999 502 Mag MPI. Part number: 32-861729A1

I am fine with purchasing the full line and fuel cooler/pump as a whole. that I believe is part number: 8M0125847 and 861156A1

I might have this. I’ll take a look this evening.

Thank you. pictures are appreciated. if easier we can go through email.

Haven't had a chance to dig into the parts from the 502 MPI - I think you were looking at maybe reengineering what you had. If you're still interested in the original part, let me know - if so - when I get a chance to this evening, I'll see if I can find it. I should have at least one.

yes still interested. My new fuel rail (picture below) needs a line with an end like below pictured.
I’d rather have the whole line so I can take out the old (the old ends wont work) and just swap with another merc line. I just need one line as the top is the supply bottom isn’t needed.

I am also open to get the fuel pump and cooler as well. Since I have the motor out I may swap those too since it’s easier.

How’s that going to work? That’s not a Cool Fuel rail. The Cool Fuel rail has a plug on one end and a valve on the other end to measure pressure.

The hoses that I have are for the Cool Fuel rail and the line bolts to the side with a brass brick.

Looks like the rail for the VST and not cool fuel

The VST has a plus and minus
Plus - the Reg on front of the rail sends excess fuel back to VST tank. This line can be sent back to fuel tank to stop vapor lock
https://www.mercruiserparts.com/bam/.../31910/2336/10
Minus - Without the VST need to reroute return somewhere

I have the hose you are looking for 50.00
Ron Sporl
504-616-6005

thanks for the info. According to the diagram this is the same rail as my SN. Here is screen shot showing cool fuel system (look at the model number motor at top) and the rail. Both same motor.

Am I missing anything?

like this?