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Professional
ACDelco Professional Brake Master Cylinders use both aluminum and iron castings, making them the high quality replacements.

Features & Benefits:
  • Contain both Ethylene Propylene (EPDM) and Styrene Butadiene (SBR) rubber components to provide superior resistance to heat, corrosion, and leakage
  • Ready to bench bleed and install right out of the box - no assembly required
  • Manufactured to meet OE specifications of fit, form, and function
Master Cylinder Signs of Wear:
  • Spongy or mushy braking
  • Brake fluid leaks
  • Slower stop-times
  • Lower than normal brake fluid levels or needing to replace brake fluid more frequently
  • Brakes locking simultaneously
  • Contaminated Brake Fluid (due to leaking seals)
Mounting Hole Quantity2
Port Quantity4
Master Cylinder MaterialAluminum
New Or RemanufacturedNew
Brake Booster IncludedNo
Mounting Bracket IncludedNo
Programming RequiredNo
Pushrod IncludedNo
Bleeder Hoses IncludedYes
Master Cylinder Cap IncludedYes
Reservoir IncludedYes
Alternate/OEM Part Number(s): 18030956, 18M714, 19176102

Warranty Information:
24 Month / Unlimited Mile Warranty on parts sold on or after 04/01/18; 12 Months on parts sold before 04/01/18.
Warranty Details