{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
Select your vehicle
Vehicle Info Required to Guarantee FitAdd Vehicle

AC Delco®
18M1878 OE Replacement Series Brake Master Cylinder With Reservoir

Tap image and pinch to zoom.
$58.99
$64.85Save: $5.86(9%)
Manufacturer #18M1878
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1

Highlights

Brand:
Series:
OE Replacement Series
Condition:
New
Reservoir Included:
With Reservoir
Replaces OE Number:
19176488
Includes:
With Cap
Quantity Sold:
Sold individually
Warranty:
24-months or unlimited mile AC Delco limited warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use:
OE Replacement

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1967-1968 Checker Marathon
All Submodels
All Engines
-
1967-1972 Buick Skylark
Base
All Engines
Power Brake System, With Front Disc Brake, With Rear Drum Brake
1967-1972 Buick Sportwagon
Base
All Engines
Power Brake System, With Front Disc Brake, With Rear Drum Brake
1968-1969 Buick GS 350
Base
All Engines
Power Brake System, With Front Disc Brake, With Rear Drum Brake
1968-1969 Buick GS 400
Base
All Engines
Power Brake System, With Front Disc Brake, With Rear Drum Brake
Page 1 of 66 | Showing 1 - 5 of 328 results

Product Information

ACDELCO (NEW) OE REPLACEMENT BRAKE MASTER CYLINDERS

Optimize your brake system’s hydraulic performance with the highly durable design and solid protection of ACDelco’s new OE replacement brake master cylinders. Established in 1899, ACDelco manufactures original GM parts and premium OE replacement parts for other brands in the automotive aftermarket.

  • Carefully pressure tested to ensure solid protection
  • Premium, highly durable construction
  • Performs up to SAE J1153 and J1154 standards
  • No hassle to install
  • Engineered to strict OE specifications
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

0
My 72 Chevelle has drum brakes on all four wheels.  Is this master cylinder compatible?fred r.Apr 22, 2024
Best Answer:Hi Fred, Thank you for initiating contact. No, this is not suitable for your vehicle. We have the direct-fit brake master cylinder for drums on all four wheels of the 1972 Chevrolet Chevelle. Don't miss out on our best offer! Click the link below to order the right part now and take advantage of our limited-time sale. I hope this helps and happy shopping! <a href="https://www.carparts.com/details/Chevrolet/Chevelle/Raybestos/Brake_Master_Cylinder/1972/RAYMC36233.html?can=CPGG4850_CSQA_20240422" target="_blank">https://www.carparts.com/details/Chevrolet/Chevelle/Raybestos/Brake_Master_Cylinder/1972/RAYMC36233.html?can=CPGG4850_CSQA_20240422</a>
Grace G.STAFFApr 22, 2024
0
My cutlass has a 455 engine does this right master cylinder?Ron L.Jun 25, 2022
Best Answer:Hi Ron, thank you for reaching out. We are unable to answer your question accurately due to a lack of information. Kindly call our parts team at 1-866-529-0412 and tell us more about your vehicle.
Aldrin P.STAFFJun 25, 2022

Customer Reviews

Excellent replacement part
Robert C.
VERIFIED PURCHASER
Purchased on Feb 14, 2024
Came pretty fast and fit perfectly!
David M.
VERIFIED PURCHASER
Purchased on Jul 08, 2023
Like the original ! Works perfectly !
Jean-Luc K.
VERIFIED PURCHASER
Purchased on Sep 08, 2021