My Account About Us Help Desk
Go-Parts
Account About Us Help Desk
Cart 0
Your cart is empty
Add an item to see it appear here.
Brake Master Cylinder
View 1
View 2
View 3

Brake Master Cylinder (Dorman) for 1985-1990 Buick, Cadillac, Oldsmobile, & Pontiac NEW

$ 79 .00

Product Notes

Bore: 24 mm and 36 mm

This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement.
Brand: Dorman
Condition: New
See All Other Brake Master Cylinders
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
Wrenchy the Robot

Meet Wrenchy - The Amazing Parts Assistant!

Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.

Specifications & Info


Attribute Value
Contenidos Del Paquete Cilindro Maestro
Master Cylinder Bore Diameter 24
Master Cylinder Material Aluminio, Aluminum
Mounting Hardware Included No, Non
Rearward Outlet Size M11 X 1.5, M16 X 1.5
Reservoir Included Oui, Sí, Yes
Secondary Outlet Thread Diameter M11 X 1.5, M16 X 1.5
Sensor Included No, Non
Tamaño De La Salida Trasera M11 X 1.5, M16 X 1.5

Vehicle Fitment Guide

This part fits the following vehicles:

Buick 2 models (tapclick to expand)(tapclick to hide)
Electra 1985-1990 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Estate Wagon Wagon 1985 - 1989 V8 5.0L RWD Automatic
Estate Wagon Wagon 1985 V8 5.7L DIESEL RWD Automatic
Limited Coupe 1985 V6 3.0L FWD Automatic
Limited Coupe 1985 - 1987 V6 3.8L FWD Automatic
Limited Coupe 1985 V6 4.3L DIESEL FWD Automatic
Limited Sedan 1985 V6 3.0L FWD Automatic
Limited Sedan 1985 - 1990 V6 3.8L FWD Automatic
Limited Sedan 1985 V6 4.3L DIESEL FWD Automatic
Park Avenue Coupe 1985 - 1987 V6 3.8L FWD Automatic
Park Avenue Coupe 1985 V6 4.3L DIESEL FWD Automatic
Park Avenue Sedan 1985 - 1990 V6 3.8L FWD Automatic
Park Avenue Sedan 1985 V6 4.3L DIESEL FWD Automatic
Park Avenue Ultra Sedan 1989 - 1990 V6 3.8L FWD Automatic
T-Type Coupe 1985 - 1987 V6 3.8L FWD Automatic
T-Type Sedan 1985 - 1990 V6 3.8L FWD Automatic
LeSabre 1986-1990 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Coupe 1987 - 1990 V6 3.8L FWD Automatic
Base Sedan 1987 V6 3.8L FWD Automatic
Base Wagon 1988 - 1990 V6 3.8L FWD Automatic
Custom Coupe 1986 V6 3.0L FWD Automatic
Custom Coupe 1986 - 1990 V6 3.8L FWD Automatic
Custom Sedan 1986 V6 3.0L FWD Automatic
Custom Sedan 1986 - 1990 V6 3.8L FWD Automatic
Estate Wagon Wagon 1986 - 1990 V8 5.0L RWD Automatic
Limited Coupe 1986 V6 3.0L FWD Automatic
Limited Coupe 1986 - 1990 V6 3.8L FWD Automatic
Limited Sedan 1986 V6 3.0L FWD Automatic
Limited Sedan 1986 - 1990 V6 3.8L FWD Automatic
T-Type Coupe 1987 V6 3.8L FWD Automatic
Cadillac 2 models (tapclick to expand)(tapclick to hide)
DeVille 1986-1990 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Coupe 1988 - 1990 V8 4.5L FWD Automatic
Base Coupe 1987 V8 4.1L FWD Automatic
Base Sedan 1988 - 1990 V8 4.5L FWD Automatic
Base Sedan 1987 V8 4.1L FWD Automatic
Touring Coupe 1986 - 1987 V8 4.1L FWD Automatic
Touring Sedan 1986 - 1987 V8 4.1L FWD Automatic
d'Elegance Coupe 1986 - 1987 V8 4.1L FWD Automatic
d'Elegance Sedan 1986 - 1987 V8 4.1L FWD Automatic
Fleetwood 1986-1990 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
60 Special Sedan 1988 - 1990 V8 4.5L FWD Automatic
60 Special Sedan 1987 V8 4.1L FWD Automatic
75 Limousine 1986 - 1987 V8 4.1L FWD Automatic
75 Formal Limousine 1986 - 1987 V8 4.1L FWD Automatic
Base Coupe 1989 - 1990 V8 4.5L FWD Automatic
Base Limousine 1988 V8 4.5L FWD Automatic
Base Limousine 1986 V8 4.1L FWD Automatic
Base Sedan 1988 - 1990 V8 4.5L FWD Automatic
Base Sedan 1987 V8 4.1L FWD Automatic
Brougham Sedan 1986 V8 5.0L RWD Automatic
Brougham Commercial Chassis Stripped Chassis 1988 - 1989 V8 4.5L FWD Automatic
Brougham Commercial Chassis Stripped Chassis 1986 - 1987 V8 4.1L FWD Automatic
Brougham d'Elegance Sedan 1986 V8 5.0L RWD Automatic
d'Elegance Coupe 1989 - 1990 V8 4.5L FWD Automatic
d'Elegance Sedan 1988 - 1990 V8 4.5L FWD Automatic
d'Elegance Sedan 1987 V8 4.1L FWD Automatic
Oldsmobile 3 models (tapclick to expand)(tapclick to hide)
98 1985-1990 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Regency Sedan 1985 V6 3.0L FWD Automatic
Regency Sedan 1985 V6 3.0L FWD Automatic
Regency Sedan 1985 - 1990 V6 3.8L FWD Automatic
Regency Sedan 1985 - 1986 V6 3.8L FWD Automatic
Regency Sedan 1985 V6 4.3L DIESEL FWD Automatic
Regency Sedan 1985 V6 4.3L DIESEL FWD Automatic
Regency Brougham Sedan 1985 - 1990 V6 3.8L FWD Automatic
Regency Brougham Sedan 1985 - 1987 V6 3.8L FWD Automatic
Regency Brougham Sedan 1985 V6 4.3L DIESEL FWD Automatic
Regency Brougham Sedan 1985 V6 4.3L DIESEL FWD Automatic
Regency Grande Sedan 1987 V6 3.8L FWD Automatic
Regency Touring Sedan 1987 - 1990 V6 3.8L FWD Automatic
Custom Cruiser 1986-1990 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Wagon 1986 - 1990 V8 5.0L RWD Automatic
Delta 88 1986-1990 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Royale Coupe 1986 V6 3.0L FWD Automatic
Royale Coupe 1986 - 1990 V6 3.8L FWD Automatic
Royale Sedan 1986 V6 3.0L FWD Automatic
Royale Sedan 1986 - 1990 V6 3.8L FWD Automatic
Royale Brougham Coupe 1986 V6 3.0L FWD Automatic
Royale Brougham Coupe 1986 - 1990 V6 3.8L FWD Automatic
Royale Brougham Sedan 1986 V6 3.0L FWD Automatic
Royale Brougham Sedan 1986 - 1990 V6 3.8L FWD Automatic
Pontiac 1 model (tapclick to expand)(tapclick to hide)
Bonneville 1987-1990 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Sedan 1987 V6 3.8L FWD Automatic
LE Sedan 1987 - 1990 V6 3.8L FWD Automatic
SE Sedan 1988 - 1990 V6 3.8L FWD Automatic
SSE Sedan 1988 - 1990 V6 3.8L FWD Automatic
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement.

Interchange Parts

Brand Part Number
ACDelco 18M1778
ACDelco 18M305
ACDelco 18M318
Aimco M900511
Aimco M900524
Alltech Automotive 100-2277
ARI 783-36062
ARI 83-36062
Autospecialty M-82062
Bendix 12157
Bendix 12187
CARDONE New 13-2341
CARDONE New 13-2343
CARDONE Reman 10-2341
CARDONE Reman 10-2343
Centric Parts 130.62062
Centric Parts 131.62062
Coni-Seal MC114172
Coni-Seal MC1141721
DFC Brake Master Cylinders - Archived 355-45006
Fenco M2187
Fenco M2343
Fenco NM2187
Fenco NM2343
General Motors 18011049
General Motors 18011050
General Motors 18011054
General Motors 18013495
Raybestos Brakes 2539565
Raybestos Brakes 2539580
Raybestos Brakes MC39565
Raybestos Brakes MC39580
Wagner Brake F110886
Wagner Brake F114172
Wagner Brake F115625
Wagner Brake MC115625

Fits Years: 1985 1986 1987 1988 1989 1990

Fits Models: 98, Bonneville, Custom Cruiser, Delta 88, DeVille, Electra, Fleetwood, LeSabre

Go-Parts Garage · Featured Guide

Cadillac DeVille Brake Master Cylinder Guide: 1986-1994

Restoring the firm, confident brake pedal your classic Cadillac DeVille deserves.

Read Full Guide →
Why Millions Choose Go-Parts

Your Go-To Place
for auto parts.

In operation since 2007. Trusted by over a million DIYers, mechanics, and body shops across all 50 states.

100%
Money-Back Guarantee

Shop With Total Confidence

If it doesn't fit, we make it right. No gimmicks, no fine print.

120
Day Return Window

4× the Industry Standard

Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.

NEW
Direct-Fit Replacement

Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

What buyers are saying.

★★★★★ 4.9 1,451 verified reviews

Racing Partner Videos

Racing partner video
Racing partner video
Racing partner video
Racing partner video
×

Search by Vehicle

1
2
3
Added to cart · Part