ACDelco® 18M91 - Professional™ Brake Master Cylinder

5 reviews|Item # mpn5020681739
Vehicle Specific
    Select Vehicle
    Replaces Original (OE) Part #:174346, 18002064, 18002069, 18004253, 18005307, 179801, 18030333, 174-512, 19175962, 18014644
    Manufacturer
    $72.27 + Free Shipping
    In Stock (7) - Ships within 24 hrs
    See similar products
    Have a Question? Ask a Specialist
    888-577-6964Live Chat

    Vehicle Fitment

    Chevy

    Specifications

    Package Quantity
    1
    Bleeder Hoses Included
    Yes
    Bore Size
    1.125 IN
    Brake Booster Included
    No
    Height
    4.8 IN
    Length
    9.4 IN
    Master Cylinder Bore Diameter
    1.125 IN
    Master Cylinder Bore Diameter_1
    28.575 MM
    Master Cylinder Cap Included
    Yes
    Master Cylinder Material
    Iron
    Measurements
    1 1/8 in Cylinder Bore
    Mounting Bracket Included
    No
    Mounting Hole Diameter
    0.423 IN
    Mounting Hole Quantity
    2
    Port Quantity
    2
    Primary Outlet Thread Diameter
    0.5 IN
    Primary Outlet Thread Diameter_1
    12.7 MM
    Programming Required
    No
    Push Rod Included
    No
    Reservoir Included
    Yes
    Secondary Outlet Thread Diameter
    0.5625 IN
    Secondary Outlet Thread Diameter_1
    14.287 MM
    Weight
    8.77 LB
    Width
    5.8 IN
    USA
    24 Months/Unlimited Miles Limited Warranty (Parts Only)
    CAN
    24 Months/40,000 Kilometers Limited Warranty (Parts Only)

    Features

    • Meets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and quality
    • Pressure tested to ensure safe and confident braking
    • Cast iron and aluminum specifications; no extra stress on the brake boosting mounting
    • Geometrical tolerance ensures that the body and plastic reservoir match for a proper fit
    • Piston assembly and return spring help to prevent brake drag, which can cause premature brake pad wear

    Product Details

    Professional™ Brake Master Cylinder by ACDelco®. Brake Master Cylinder Assembly. ACDelco Professional Brake Master Cylinders use both aluminum and iron castings, making them a high quality replacement for many vehicles on the road today. These master cylinders contain both Ethylene Propylene (EPDM) and Styrene Butadiene (SBR) rubber components to provide superior resistance to heat, corrosion, and leakage. ACDelco Professional Brake Master Cylinders are ready to bench bleed and install right out of the box - no assembly required. These premium aftermarket replacement brake master cylinders are manufactured to meet your expectations for fit, form, and function.

    ACDelco is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs. All products by ACDelco are made with expert care and created by professionals to meet all your requirements. The company does not accept compromises when it is going about quality, so you can be sure that all products have only first-rate quality. With many years of manufacturing experience, ACDelco is the name you can trust.

    ACDelco® - Car Maintenance GuideACDelco® - Series ComparisonACDelco® - Product Line ApplicationsACDelco® - FAQACDelco® - Warranty
    Brand:
    ACDelco
    Part Number:
    18M91
    UPC:
    036666695786
    OE Numbers:
    174346, 18002064, 18002069, 18004253, 18005307, 179801, 18030333, 174-512, 19175962, 18014644

    Reviews

    (5)
    Only authorized customers can leave a review on our website. We would love to know what you like or dislike about the product. Share your opinion on product quality, appearance, installation, and other characteristics.
    /5
    1-5 of 5 Reviews
    5 of 5
    Good Match for Truck.
    What can I say the product was easy to install and fit the job.
    ACDelco® 18M484 - Professional™ Brake Master Cylinder
    Posted by David (Glenshaw, PA) / January 31, 20201990 Ford F-450
    5 of 5
    Good All Around
    Easy to install.
    Posted by Adrian (San Jacinto, CA) / February 24, 20181976 Chevy Corvette
    5 of 5
    Master Cylinder
    100% excellent, happy.
    Posted by Alejandro (Katy, TX) / October 05, 20171994 GMC Yukon
    5 of 5
    Stop My Car
    It is a precise ACDelco replacement. Perfect!
    Posted by Patrick (Tampa, FL) / September 28, 20171999 Pontiac Grand Prix
    5 of 5
    ACDelco
    Great product could have never been better.
    Posted by Narsingh | (S Richmond Hl, NY) / September 08, 20172006 Ford Freestyle

    Questions and Answers

    (0)
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!