Convert brake-pedal force into the hydraulic pressure that operates both brake circuits with the Dorman - First Stop Brake Master Cylinder M630836. It drops in as a direct-fit replacement for the 2008-2012 Audi A5 Quattro and S5, the 2010-2012 Audi A4, A4 Quattro, A5 and S4, the 2011-2018 Audi A8 Quattro, the 2013-2017 Audi A4 Allroad, the 2013-2016 Audi Allroad and the 2013-2018 Audi S8 (All engines) — see the Buyer's Guide tab for the full list.
- Aluminum housing: built to match the casting material of the original part for similar performance.
- EPDM rubber components: all rubber parts use a high-quality EPDM compound for resistance to glycol-based brake fluid.
- 100% new: made entirely of new materials, not remanufactured.
- SAE standards: made to meet rigorous SAE International specifications.
This unit has a 1-inch bore and two outlets: a rearward outlet sized M12 x 1.0, a secondary outlet with an M12 x 1.0 thread diameter, and a 1 mm primary outlet thread pitch. The reservoir, sensor, and mounting hardware are not included; consult the vehicle service information for the correct components and fasteners and whether they may be reused. Signs the original master cylinder may need replacing include a pedal that slowly sinks, a spongy pedal, or fluid leaking at the cylinder — diagnose the cause first, and if a failed master cylinder is the cause, this replaces it. Country of origin: China.
Interchange: 100-2943 · 1002943 · 13-4028 · 134028 · 11-3864 · 113864 · 11-4028 · 114028 · 130.33132 · 355-73017 · 35573017 · MC391422 · 8K0611021 · 8K0611021B · R135789 · Manufacturer part number M630836
This part cross-references / interchanges with the following part numbers:
100-2943, 13-4028, 11-3864, 11-4028, 130.33132, 355-73017, MC391422, 8K0611021, 8K0611021B, R135789
