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Dorman - First Stop Brake Master Cylinder P/N:M630834
$161.99
Send hydraulic pressure to the vehicle's brake circuits with the Dorman - First Stop Brake Master Cylinder (M630834). The master cylinder converts brake-pedal force into the hydraulic pressure that operates the brakes, and this unit is engineered to match the original master cylinder's design, function, and performance on the listed applications: the 2001-2003 Audi A3, 2001-2006 SEAT Leon, 2002-2005 SEAT Toledo, 1999-2010 Volkswagen Beetle, 2005 Volkswagen Bora, 2013-2015 Volkswagen Clasico, 1998-2006 Volkswagen Golf, and both the 2002-2006 and 2012-2013 Volkswagen Jetta (engine code: All).
- 100% new: made entirely of new materials, not remanufactured.
- Aluminum housing: the cylinder housing is matched to the casting material of the original part for similar performance.
- Durable EPDM components: all rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
- Standards: made to meet SAE International specifications.
This unit has a 0.938 in bore, three outlets, and includes the reservoir and sensor. The rearward/secondary outlet thread is M12 x 1.0 with a 1 mm primary outlet thread pitch. Mounting hardware is not included; consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.
Interchange: 100-1112 · 1001112 · 13-3045 · 133045 · 11-3045 · 113045 · 130.33420 · MC390925 · 1J1614019C · 1J1614019F · R134885 · Manufacturer part number M630834
This part cross-references / interchanges with the following part numbers:
100-1112, 13-3045, 11-3045, 130.33420, MC390925, 1J1614019C, 1J1614019F, R134885
Frequently Asked Questions
What does a brake master cylinder do?
It converts the force from your brake pedal into hydraulic pressure that is sent to the brake circuits to apply the brakes.
Does this master cylinder include a reservoir and sensor?
Yes. Per the catalog, both the reservoir and the sensor are included with this unit.
Is mounting hardware included?
No. Mounting hardware is not included. Consult the vehicle service information for the correct fasteners and whether they may be reused.
What are the bore and outlet specs?
It has a 0.938 in bore and three outlets. The rearward/secondary outlet thread is M12 x 1.0 with a 1 mm primary outlet thread pitch.
Will this fit my vehicle?
It is listed for applications including the Audi A3, SEAT Leon and Toledo, and VW Beetle, Bora, Clasico, Golf, and Jetta. Check the Buyer's Guide tab to confirm your year and model.
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Dorman - First Stop Brake Master Cylinder P/N:M630834
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