JD4320. Almost finished mowing a field, she started leaking diesel like a sieve through the fuel plunger rod hole. On inspection, the diaphram (a rubber piece shaped like a paint spray can cap but smaller) only 6 years old had some dry rot and a small hole which the fuel, under pressure, was escaping from. I looked all over for a replacement diaphram (maybe $5 dollars), but had to replace the entire fuel filter assembly for $50 bucks. OK, glad for an easy fix and $50 seemed reasonable cost for the assembly, but why couldn't I get the diaphram only? I'm guessing if it's not in the online parts catalog, dealers don't carry it. Any suggestions on how to obtain a part like this?
Adrian
Adrian