I bought the hose from the dealer...$60.

Probably over-priced, but it wasn't readily available at the time.

The fittings looked to be the standard A/N banjo-style on one end and hex on the other...the hose was fairly stiff, so it was designed for a particular application.

Those special hex wrenches used for this stuff works best, but since I don't own any, socket wrenches work OK (albeit, with some marring of the bolt surfaces).

Make sure you depressurize the system before doing this (remove the gas cap). There will be some spillage, so have a couple of clamps ready to pinch the hose ends when doing this...

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car