More Information for ACDELCO 18M390770
Continue Shopping
ACDELCO 18M390770  
ACDELCO 18M390770close
Part image
ACDELCO 18M390770 Specifications
Bleeder Hoses IncludedNo
Brake Booster IncludedNo
Master Cylinder Cap IncludedNo
Master Cylinder MaterialAluminum
Mounting Bracket IncludedNo
Mounting Hole Quantity2
New Or RemanufacturedNew
Port Quantity2
Pushrod IncludedNo
Reservoir IncludedNo
Gold / 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)

Warranty Information:
24 Month / Unlimited Mile Warranty
Warranty Details