Pump element (plunger + barrel):

W1369,1418305552, 1305 552 FS, D=6MM LH, 0.045kg, =Mercedes Benz A0010748422,
W1370, 1418305546, 1305 546 FS, D=5.5MM LH, 0.045KG, = Mercedes Benz A0010744822
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