ACDELCO
More Information for ACDELCO 18M391048
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ACDELCO 18M391048  
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ACDELCO 18M391048 Specifications
Bleeder Hoses IncludedNo
Bore Size (IN)1.000
Brake Booster IncludedNo
Height (IN)9.3
Length (IN)9.25
Master Cylinder Cap IncludedYes
Master Cylinder MaterialAluminum
Mounting Bracket IncludedNo
Mounting Hardware IncludedNo
Mounting Hole Diameter (IN)0.350
Push Rod IncludedNo
Reservoir IncludedYes
Weight (lb)1
Width (IN)5.5
Gold / Professional; Includes Reservoir
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
OEM / Interchange Numbers: 19385040

Warranty Information:
24 Month / Unlimited Mile Warranty
Warranty Details