I replaced both the banjo fitting line AND the signal line from the switchover valve to the IP. Total was about $15.00 AND it came with a new banjo fitting. Made in Germany. You'll also need to clean out your switchover valve when you install the new lines, since they have the black soot in them. Most likely also plugged.

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84 300DT Puke Yellow. Totalled after 438,000
84 300DT Orient Red. 169,000 (actual mileage may vary)
2002 Explorer EB (wife's)