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Dorman M39633 Brake Master Cylinder

Brand	Dorman M39633
Mounting Hardware Included	No
Master Cylinder Bore Diameter	0.938
Master Cylinder Material	Cast iron
Reservoir Included	Yes
Sensor Included	No
Number of Outlets	2
Package Contents	Master cylinder
Rearward Outlet Size	M18 x 1.5
Secondary Outlet Thread Diameter	9/16-18
Fits	Ford · 3 vehicles

OE-style replacement. Precision-engineered to match the original master cylinder’s design and function.

Cast iron body. Durable housing built for hydraulic brake service.

Reservoir included. Supplied as a complete master cylinder assembly.

Cross-references BBB Industries 12384, Cardone New 13-4006 and Centric Parts 130.65006 for the same application. See all 14.

$107.17Free shipping

In stock · usually ships same day before 1pm CST

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Brake Master Cylinder Overview

This Dorman brake master cylinder is built for specific Ford Ranger applications and matches the original unit’s design and function. It uses new materials and a cast iron body to support dependable hydraulic braking performance.

Key Features

Precision-engineered replacement for the original master cylinder
Cast iron construction for a durable hydraulic housing
0.938 bore diameter for the specified brake system application
Reservoir included for a complete master cylinder assembly
Two outlet ports with M18 x 1.5 and 9/16-18 thread sizes

Detailed Description

Part number M39633 is a brake master cylinder for 1987-1989 Ford Ranger models with 15/16-inch bore size drum brakes. It is designed to match the original master cylinder’s function and performance, making it a direct hydraulic replacement for the specified brake system. The cast iron body and new-material construction support consistent brake pedal response and fluid pressure delivery. This Dorman M39633 master cylinder also cross-references Raybestos Brakes MC39633 for the same application.

What It Helps Address

Soft or inconsistent brake pedal feel
Loss of hydraulic pressure in the brake system
Leaking or worn master cylinder housing
Brake fluid reservoir replacement needs
Outlet thread mismatch during brake service

Installation Notes

Fits 1987-1989 Ford Ranger, N/A. Verify bore size, outlet thread sizes, and brake system configuration before installation. Mounting hardware is not included. Bleed the brake system after installation to remove air from the hydraulic lines.

Quality Assurance

Dorman manufactures this master cylinder as a precision-engineered replacement built to match the original part’s design and function on the listed applications.

This part fits 3 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Submodel	Drive Type	Notes
1989	Ford	Ranger	STX	4WD	Fits 15/16" bore size drum brakes on multiple vehicle models.
1988	Ford	Ranger	STX	4WD	Fits 15/16" bore size drum brakes on multiple vehicle models.
1987	Ford	Ranger	STX	4WD	Fits 15/16" bore size drum brakes on multiple vehicle models.
No rows match your filter.

Directly replaces or cross-references 14 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

BBB Industries — 12384Cardone New — 13-4006Centric Parts — 130.65006Raybestos Brakes — MC3963310-400918M35183-42006114081E7TZ2140DF114081M-85006M2190M900557MC252280