OE Quality
60-Day Returns

Raybestos MC391043 Brake Master Cylinder
Reliable Brake Master Cylinder for Ford Super Duty Trucks
The Raybestos Element3; New Brake Master Cylinder MC391043 is engineered to provide consistent braking performance for Ford F-250 Super Duty and F-350 Super Duty models. Designed with precision, this aluminum master cylinder ensures durability and efficient hydraulic pressure control.
- Constructed from lightweight, corrosion-resistant aluminum
- Features a 1.313-inch bore size for optimal hydraulic response
- Includes two mounting holes with a diameter of 0.354 inches for secure installation
- Equipped with two ports: primary port thread M10x1 and secondary port thread M12x1
- Compatible specifically with Ford F-250 Super Duty and F-350 Super Duty vehicles
About the Raybestos Element3; New Product Line
The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components that meet or exceed OEM specifications. This brake master cylinder is part of that line, offering a balance of quality materials and precise engineering to maintain brake system integrity in demanding applications such as Ford Super Duty trucks.
Detailed Product Description
This brake master cylinder (part number MC391043) is crafted from aluminum, providing a strong yet lightweight solution for brake hydraulics. The 1.313-inch bore size is designed to deliver consistent hydraulic pressure, ensuring responsive braking. With two mounting holes sized at 0.354 inches in diameter, installation is secure and stable. The master cylinder includes two ports with specific thread sizes (M10x1 for the primary port and M12x1 for the secondary port), allowing for proper brake line connections. This part is engineered to fit Ford F-250 Super Duty and F-350 Super Duty models, making it a precise replacement component for these trucks.
Common Applications and Issues Addressed
- Restores proper brake pedal feel and hydraulic pressure
- Replaces worn or leaking master cylinders causing brake fluid loss
- Solves inconsistent braking or spongy brake pedal issues
- Addresses brake system failures related to master cylinder wear
- Ensures compatibility with Ford Super Duty brake hydraulic systems
Installation Notes and Tips
- Verify compatibility with Ford F-250 Super Duty and F-350 Super Duty before installation
- Ensure brake fluid system is properly bled after installation to remove air
- Use correct thread fittings (M10x1 and M12x1) for brake line connections
- Inspect mounting holes and hardware for secure fitment
- Follow vehicle manufacturer torque specifications during installation
Quality Assurance and Warranty
Raybestos manufactures the MC391043 brake master cylinder to meet stringent quality standards, using durable aluminum material for long-lasting performance. While specific warranty details are not provided here, Raybestos products typically come with a limited warranty against defects in material and workmanship. Always consult product documentation or contact the manufacturer for exact warranty terms.
| Brand | Raybestos |
|---|---|
| Part Number | MC391043 |
| Position | Element3; New, N/A |
| Bore Size | 1.313 |
| Master Cylinder Material | Aluminum |
| Mounting Hole Diameter | 0.354 |
| Mounting Hole Quantity | 2 |
| Number of Ports | 2 |
| Primary Port Thread A | M10x1 |
| Secondary Port Thread A | M12x1 |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Fuel Type | Position | Notes |
|---|---|---|---|---|---|
| 2007 | Ford | F-250 Super Duty | GAS | N/A | with Vacuum Booster; Integrated Brake Control; Element3; New |
| 2007 | Ford | F-350 Super Duty | GAS | N/A | Integrated Brake Control; with Vacuum Booster; Element3; New |
| 2006 | Ford | F-250 Super Duty | GAS | N/A | Integrated Brake Control; with Vacuum Booster; Element3; New |
| 2006 | Ford | F-350 Super Duty | GAS | N/A | Integrated Brake Control; with Vacuum Booster; Element3; New |
| 2005 | Ford | F-250 Super Duty | GAS | N/A | Integrated Brake Control; with Vacuum Booster; Element3; New |
| 2005 | Ford | F-350 Super Duty | GAS | N/A | Integrated Brake Control; with Vacuum Booster; 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.