Oops! The pump fits just fine but the 210 high-pressure hose has a different fitting and won't screw into the 124 pump. I'll have to get a new 210 high-pressure hose (which might be 210-320-36-72) and have a shop put the correct end for the 124 pump on it.

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970