I have a hydraulic leak on my case 70+4 trencher. It's a clear plastic fitting that's exposed to sunlight near the external battery box. What is it and where can I buy one? It look like a visual pressure indicator? Or it kinda looks like one of those Donaldson air flow indicators on an air breather. I just came to crank it the other morning and it cracked and leaked fluid out.... I'd appreciate any help.
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