Dorman - First Stop Brake Master Cylinder P/N:M39706

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$222.99
MPN: M39706
Item Package Quantity: 1
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Dorman - First Stop Brake Master Cylinder P/N:M39706
Dorman - First Stop Brake Master Cylinder P/N:M39706
$222.99

Turn brake-pedal effort into the hydraulic pressure that operates your brakes with the Dorman - First Stop Brake Master Cylinder M39706. It drops in as a direct-fit replacement engineered to replicate the original master cylinder's design, function, and performance on the listed Mercedes-Benz models: the 1984-1989 190D, 1984-1993 190E, 1994-1996 C220, 1994-1996 C280, 1994-1995 E320, and 1995-1996 C36 AMG [All engines].

  • Aluminum housing: built to match the casting material of the original part for similar performance.
  • Glycol-resistant seals: all rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
  • 100% new: made entirely of new materials, not remanufactured.
  • Strict specifications: made to meet rigorous SAE International standards.

This cylinder has a 0.875 in bore diameter and three outlets, with M10 x 1.0 outlet threads at a 1 mm thread pitch. The reservoir, sensor, and mounting hardware are not included — consult the vehicle service information for the correct fasteners and whether they may be reused. Signs the original may need replacing include a brake pedal that slowly sinks, a soft or spongy pedal, or brake fluid leaking internally or externally; diagnose the cause before replacing. Country of origin: Italy. Manufacturer part number M39706.

Frequently Asked Questions

What does this brake master cylinder do?

It converts the force from your brake pedal into hydraulic pressure, then sends that pressure through its outlets to operate the vehicle's brakes.

Which vehicles does the M39706 fit?

It's a direct-fit for the 1984-1989 Mercedes-Benz 190D, 1984-1993 190E, 1994-1996 C220 and C280, 1994-1995 E320, and 1995-1996 C36 AMG. See the Buyer's Guide tab for the full list.

Does it include a reservoir, sensor, or mounting hardware?

No — the reservoir, sensor, and mounting hardware are not included. Consult the vehicle service information for the correct fasteners and whether they may be reused.

What is it made of?

The cylinder housing is aluminum, built to match the original part's casting material, and its rubber components use a high-quality EPDM compound resistant to glycol-based brake fluid.

What are signs the master cylinder may need replacing?

Signs include a brake pedal that slowly sinks to the floor, a soft or spongy pedal, or brake fluid leaking internally or externally. Diagnose the cause before replacing.