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Dorman - First Stop Brake Master Cylinder P/N:M630050
$151.99
Convert brake-pedal force into the hydraulic pressure your brakes rely on with the Dorman First Stop Brake Master Cylinder M630050. It's a direct-fit replacement precision-engineered to match the design, function, and performance of the original master cylinder on the 1998-2005 Volkswagen Beetle, 1999-2006 Golf and Jetta, 2005 Bora, 2000-2002 Audi TT and TT Quattro, and 2001-2005 Seat Toledo (all engines).
- 100% new: made entirely of new materials, not remanufactured, for consistent quality and safety.
- Aluminum housing: built to match the casting material of the original part for similar performance.
- EPDM rubber components: high-quality EPDM compound resists glycol-based brake fluid.
- Built to standard: made to meet rigorous SAE International standards.
This master cylinder has a 24 mm bore and two outlets, with an M12 x 1.0 rearward/secondary outlet thread and a 1 mm primary outlet thread pitch. The package contains the master cylinder only — the reservoir, sensor, and mounting hardware are not included; transfer or source these as directed by the vehicle's service procedure. Country of origin: China.
Interchange: 83-62017 · 8362017 · 83-96417 · 8396417 · M901199 · 100-1108 · 1001108 · M-02417 · M02417 · M-04017 · M04017 · 072-9378 · 0729378 · 13699 · 13-2874 · 132874 · 11-2874 · 112874 · 130.33417 · MC251630 · 1J1614019 · M55273 · NM55273 · MC390500 · F140063 · MC140063 · Manufacturer part number M630050.
This part cross-references / interchanges with the following part numbers:
83-62017, 83-96417, M901199, 100-1108, M-02417, M-04017, 072-9378, 13699, 13-2874, 11-2874, 130.33417, MC251630, 1J1614019, M55273, NM55273, MC390500, F140063, MC140063
Frequently Asked Questions
What does the brake master cylinder do?
It converts brake-pedal force into hydraulic pressure and distributes it through its two outlets to the brake circuits. Signs it may need replacing include a sinking pedal or fluid leaks.
Which vehicles does M630050 fit?
It's a direct-fit replacement for the 1998-2005 VW Beetle, 1999-2006 Golf and Jetta, 2005 Bora, 2000-2002 Audi TT and TT Quattro, and 2001-2005 Seat Toledo (all engines). Check the Buyer's Guide tab to confirm.
Is this new or remanufactured?
It's 100% new — made entirely of new materials, not remanufactured — and made to meet rigorous SAE International standards.
Does it include a reservoir, sensor, or mounting hardware?
No. The package contains the master cylinder only; the reservoir, sensor, and mounting hardware are not included. Transfer or source these as directed by the vehicle's service procedure.
What are the bore and outlet specifications?
It has a 24 mm bore and two outlets, with an M12 x 1.0 rearward/secondary outlet thread and a 1 mm primary outlet thread pitch. The housing is aluminum.
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Dorman
Dorman - First Stop Brake Master Cylinder P/N:M630050
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