How many rubber fuel hoses are there on a 124 with 603 turbo? I know there are the ones under the hood, but are there more at the tank or along the underside? And where do you get the Viton ones?

I recently replaced the return lines with OEM from the dealer, would they be rubber or Viton?

Thanks

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Brian
87 300Dturbo 180K #14 head still running R-12 SOLD 12/2017
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10 Sprinter 3500 chassis with a Class A Winnebago on it. 56K