Fusible Link --- Part number?

[tedward]

Hi folks, i haven't posted for a long time, but have used the site to fix various things in the mean while, and am quite appreciative. I have a 91' Deli, L300 (p25w-0516606). i just fried one of the fusible links from hooking up jumper cables backwards in the dark---so embarrassing. anyway, it's the fusible link is the little black box connected to the terminal of the positive battery cable, that says ALT on the sides, and says 100A on the clear front cap. 'Anyone know the part number for it, or where i can find one? Is the fusible link also called a Relay/Alternator Safety: MD 128752? I'm hoping that's all that's wrong. I can jump start my deli but it will only run for about five minutes( the battery is new but gone flat over the summer from not running). I haven't tested the voltage on the battery yet to see if it's below 12.5V while running, in order to test the alternator, because i assume there is no longer a connection to the alternator from the battery now that the fusible link is blown.

[Growlerbearnz]

The 100A fuse is a fairly generic fusible link- official Mitsubishi part number is MU840022, but they're used in plenty of other cars.

Lots of lovely parts diagrams and matching part numbers here: http://www.partsbase.org/mitsubishi/del ... parts-p-2/

One trick is to put the part number into Google Image Search, you should find out if you're looking at the right thing, and the number of results tells you how common it is

MD128752 is an "alternator safety relay", if you put that part number into Google Image Search you'll see what it looks like. It's not the thing you want. It's not even actually a relay- it's a big resistor and diode inside a relay case, intended to burn off excess power if your battery comes disconnected while the engine's running (AKA a load dump).

[tedward]

You are awesome! Thank you very much. And the google image search is a great tip too.