ACDELCO
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ACDELCO 18M103  
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ACDELCO 18M103 Specifications
Bleeder Hoses IncludedYes
Brake Booster IncludedNo
Height (IN)5.6
Length (IN)11.3
Master Cylinder Bore Diameter (IN)0.812
Master Cylinder Bore Diameter (MM)20.625
Master Cylinder Cap IncludedYes
Master Cylinder MaterialAluminum
Mounting Bracket IncludedNo
Primary Outlet Thread Diameter (IN)0.406
Primary Outlet Thread Diameter (MM)10
Push Rod IncludedNo
Reservoir IncludedYes
Weight (lb)2.57
Width (IN)7.7
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: 18030345

Warranty Information:
24 Month / Unlimited Mile Warranty
Warranty Details