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Raybestos MC39844 Brake Master Cylinder
Reliable Brake Master Cylinder for Geo, Toyota Vehicles
The Raybestos Element3; New Brake Master Cylinder MC39844 is engineered to restore precise brake hydraulics in select Geo and Toyota models. Designed with durable aluminum construction and exact fitment specifications, this master cylinder ensures consistent braking performance for your Celica, Corolla, or Prizm.
- Constructed from lightweight, corrosion-resistant aluminum
- Three mounting holes with 0.359-inch diameter for secure installation
- 0.875-inch bore size optimized for brake fluid pressure control
- Two ports with M10x1 thread size for primary and secondary brake lines
- Compatible with Geo Celica, Toyota Corolla, and Toyota Prizm models
About the Raybestos Element3; New Product Line
The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components with precise engineering and material quality. This brake master cylinder MC39844 is part of that line, featuring aluminum construction and standardized port threading to meet OEM specifications for select Geo and Toyota vehicles.
Detailed Product Description
This brake master cylinder MC39844 is designed to replace worn or damaged units in Geo Celica, Toyota Corolla, and Toyota Prizm models. The aluminum body offers resistance to corrosion and heat, contributing to long service life. The 0.875-inch bore size provides the correct hydraulic pressure for effective brake operation. With three mounting holes sized at 0.359 inches in diameter, installation aligns precisely with factory mounting points. The two ports, both with M10x1 threading, accommodate brake lines for primary and secondary circuits, ensuring proper fluid flow and braking response.
Common Applications and Issues Addressed
- Restores brake fluid pressure in vehicles with failing master cylinders
- Eliminates spongy or unresponsive brake pedal feel
- Replaces leaking or corroded master cylinder components
- Ensures proper brake line connection with standardized port threads
- Supports safe braking performance in Geo Celica, Toyota Corolla, and Prizm
Installation Notes and Tips
- Verify compatibility with your vehicle’s make, model, and year before installation
- Ensure all brake lines are properly connected to the M10x1 threaded ports
- Bleed the brake system thoroughly after installation to remove air
- Use appropriate tools to avoid damaging mounting holes or threads
- Inspect related brake components for wear during replacement
Quality Assurance and Warranty
Raybestos manufactures the MC39844 brake master cylinder to meet industry standards for durability and performance. The aluminum construction and precise machining contribute to reliable operation. While specific warranty details are not provided here, Raybestos products typically come with manufacturer-backed quality assurance to support professional repairs and maintenance.
| Brand | Raybestos |
| Part Number | MC39844 |
| Position | Element3; New, N/A |
| Bore Size | 0.875 |
| Master Cylinder Material | Aluminum |
| Mounting Hole Diameter | 0.359 |
| Mounting Hole Quantity | 3 |
| Number of Ports | 2 |
| Primary Port Thread A | M10x1 |
| Secondary Port Thread A | M10x1 |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Submodel | Body Type | # Doors | Drive Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 1993 | Toyota | Celica | ST | N/A | Element3; New | |||
| 1992 | Geo | Prizm | GSi | N/A | with 4 Bolt Mounting; Element3; New | |||
| 1992 | Toyota | Celica | ST | N/A | Element3; New | |||
| 1992 | Toyota | Corolla | AWD | N/A | Element3; New | |||
| 1991 | Geo | Prizm | GSi | N/A | with 4 Bolt Mounting; Element3; New | |||
| 1991 | Toyota | Celica | ST | N/A | Element3; New | |||
| 1991 | Toyota | Corolla | GTS | Coupe | 2 Door | N/A | Element3; New | |
| 1990 | Geo | Prizm | GSi | N/A | with 4 Bolt Mounting; Element3; New | |||
| 1990 | Toyota | Celica | ST | N/A | Element3; New | |||
| 1990 | Toyota | Corolla | GTS | Coupe | 2 Door | N/A | Element3; New | |
| 1989 | Toyota | Corolla | GTS | Coupe | 2 Door | N/A | Element3; New | |
| 1988 | Toyota | Corolla | GTS | Coupe | 2 Door | N/A | Element3; New |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.