I have noticed some leaks in the fuel hoses on my Tier II JD 6415. It has two fuel filters, external pump, and fuel cooler. The first leaks were at the cooler. I at first thought the pinch clamps were not strong enough and replaced them with gear clamps.
Still leaking. I was able to cut an inch off the lines and reattach. Leaks fixed. so it was the hose failing.
Next leak was a hose from the final fuel filter to the injection pump. I also cut an inch off that hose and fixed the leak.
Also all the hoses are P/N L65382 (I assume cut from bulk) except the one from the final fuel filter to the injection pump, it's P/N L65383. Both hoses look the same, but I can not find any specs for either P/N. They both appear to be 1/4" ID hose. Maybe a typo in the parts catalog?
I know I can't keep shortening the hoses and should replace them all. I also saw other posts with JD original hoses leaking or dry rotting. This braided cloth covered, rubber? hose.
Should I buy JD hose or is there a better hose to buy?
Key 5 in the first drawing is final filter to injection pump hose P/N L65383
Keys, 1, 2, 3, 7, 8, 41, and 46 are the hoses in the second drawing P/N L65382