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Raybestos MC391188 Brake Master Cylinder
| Brand | Raybestos MC391188 |
|---|---|
| Mounting Hole Quantity | 2 |
| Master Cylinder Material | Aluminum |
| Mounting Hole Diameter | 0.354 |
| Bore Size | 1.313 |
| Number of Ports | 2 |
| Primary Port Thread A | M12x1 |
| Secondary Port Thread A | M10x1 |
| Product line | Element3; New |
| Fits | Ford · 11 vehicles |
Aluminum housing. Lightweight master cylinder construction for hydraulic brake service.
Dual-port design. Uses M12x1 and M10x1 threads for the specified brake plumbing layout.
Element3 line. Raybestos brake hydraulic product line for application-specific replacement.
Cross-references Centric Parts 130.65127, Dorman - First Stop M630524 and Quality-Built NM4155 for the same application. See all 14.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Brake Master Cylinder Overview
Raybestos Element3 brake master cylinder MC391188 is a direct-fit hydraulic replacement for select Ford Super Duty applications with vacuum booster and integrated brake control configurations. It uses an aluminum body and a 1.313 bore size to match the original brake system requirements.
Key Features
- Aluminum master cylinder construction for a lightweight hydraulic housing.
- 1.313 bore size for proper brake pedal and hydraulic response.
- Two-port design with M12x1 primary port thread and M10x1 secondary port thread.
- Two mounting holes with 0.354 mounting hole diameter.
- Raybestos Element3 line product for brake hydraulic service.
Detailed Description
MC391188 is built for Ford F-250 Super Duty, Ford F-350 Super Duty, Ford F-450 Super Duty, and Ford F-550 Super Duty brake system applications listed with vacuum booster and integrated brake control notes. The aluminum master cylinder body, dual-port layout, and specified bore size support accurate hydraulic transfer in the brake system. This part number, MC391188, is also referenced by cross numbers such as Centric Parts 130.65127 and Dorman - First Stop M630524 for the same application.
What It Helps Address
- Brake pedal travel that feels inconsistent or excessive.
- Hydraulic pressure loss caused by a worn master cylinder.
- Brake fluid leakage at the master cylinder assembly.
- Brake response issues tied to internal seal wear.
Installation Notes and Tips
Verify the vehicle’s brake booster type, integrated brake control setup, and build-date notes before ordering. Confirm port thread sizes and mounting-hole dimensions against the original unit. This master cylinder is listed for specific Ford Super Duty configurations only, so fitment should be matched to the exact application notes shown for your vehicle.
Quality Assurance
Raybestos Element3 is a brake product line focused on hydraulic replacement parts with application-specific fitment. Confirm all system details before installation to ensure the correct MC391188 master cylinder is selected for the vehicle.
| Year | Make | Model | Fuel Type | Notes |
|---|---|---|---|---|
| 2010 | Ford | F-250 Super Duty | — | with Vacuum Booster; Integrated Brake Control; Element3; New |
| 2010 | Ford | F-350 Super Duty | — | with Vacuum Booster; Integrated Brake Control; Element3; New |
| 2010 | Ford | F-550 Super Duty | GAS | To 2/12/10; with Vacuum Booster; Integrated Brake Control; Element3; New |
| 2009 | Ford | F-250 Super Duty | — | with Vacuum Booster; Integrated Brake Control; Element3; New |
| 2009 | Ford | F-350 Super Duty | — | with Vacuum Booster; Integrated Brake Control; Element3; New |
| 2009 | Ford | F-550 Super Duty | GAS | with Vacuum Booster; Integrated Brake Control; Element3; New |
| 2008 | Ford | F-250 Super Duty | — | w/ Trailer Brake Control; with Vacuum Booster; Element3; New |
| 2008 | Ford | F-350 Super Duty | — | From 12/3/07; with Vacuum Booster; Integrated Brake Control; Element3; New |
| 2008 | Ford | F-550 Super Duty | GAS | with Vacuum Booster; Integrated Brake Control; Element3; New |
| 2007 | Ford | F-450 Super Duty | GAS | From 12/18/06; To 11/07; Integrated Brake Control; Element3; New |
| 2007 | Ford | F-550 Super Duty | GAS | From 12/18/06; with Vacuum Booster; Integrated Brake Control; Element3; New |
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