Genuine Hajus Mercedes Diesel Return Line Fuel Hose Kit - Fits C, E, M, GLE 300CDI 350CDI (6420707832)
About this item
Alright, here's a brand new OEM-quality fuel return hose for your Mercedes diesel.
If you've got a 300CDI or 350CDI (think C-Class, E-Class, M-Class, or GLE) and you're smelling diesel or noticing a little weepage around the injectors, this is the part you need.
It's made by Hajus Autoteile GmbH, which is solid German aftermarket stuff, and it matches the factory part number 642 070 78 32 perfectly.
This kit replaces a bunch of other numbers too, like A6420707832 and A6420700200, so you know it's the right fit.
It's basically the plumbing that takes the excess fuel from the injectors back to the tank.
Super common issue on these OM642 engines, and this is a straightforward fix.
Comes with everything you need to get it swapped out.
Don't mess around with leaking fuel – grab this and get your Mercedes running clean again.
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