Up for sale is a genuine OEM brake master cylinder booster for Mercedes-Benz models W140, W124, R129, and R107 between 1986-1997. This high-quality part comes with a power brake booster, cylinder, and OE/OEM part number 0034309230. It fits various models, including 300SDL, 300SD, 300SE, 300SEL, 300SE, 300SL, 350SDL, 420SEL, 500SL, 560SL, 560SEC, 560SEL, 600SL, E420, E500, S450D, S350D, SL320, SL500, and SL600.

The item is made in Germany and is in excellent working condition. With its manufacturer part number and a wide range of compatible models, this brake master cylinder booster is an ideal replacement for your old or damaged one.