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Dorman M39748 Brake Master Cylinder
Reliable Brake Master Cylinder for Dodge and Mitsubishi Vehicles
The Dorman M39748 Brake Master Cylinder is engineered to restore proper brake hydraulics in select Dodge and Mitsubishi models. Designed with precision, this master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.
- Master cylinder bore diameter: 0.938 inches for accurate fluid displacement
- Constructed from durable aluminum material for corrosion resistance
- Includes reservoir and sensor for complete brake system integration
- Two outlets with rearward outlet size M10 x 1.0 and thread pitch 1.0
- Compatible with Dodge Ram 50, Mitsubishi Mighty Max, Montero, and Raider
Product Details and Specifications
The Dorman M39748 master cylinder features a 0.938-inch bore diameter, which is critical for maintaining the correct hydraulic pressure within the brake system. Its aluminum construction offers strength and resistance to corrosion, extending the service life of the component. This unit comes complete with a reservoir and sensor, allowing for seamless integration with the vehicle’s brake hydraulics. The master cylinder includes two outlets, with a secondary outlet thread diameter of 10 mm and a rearward outlet size of M10 x 1.0, ensuring compatibility with the brake lines on the specified Dodge and Mitsubishi models.
Compatible Vehicles and Applications
This brake master cylinder is specifically designed for use in the following vehicles:
- Dodge Ram 50
- Mitsubishi Mighty Max
- Mitsubishi Montero
- Mitsubishi Raider
It is an ideal replacement part for restoring brake system functionality in these models, particularly when experiencing issues related to brake fluid pressure or master cylinder failure.
Common Issues Addressed by This Master Cylinder
- Brake pedal sinking or sponginess due to internal leaks
- Loss of hydraulic pressure affecting braking performance
- Brake fluid contamination or reservoir damage
- Sensor malfunctions impacting brake warning systems
- Wear and corrosion in original master cylinder components
Installation Notes and Tips
Installation of the Dorman M39748 master cylinder requires careful attention to brake system bleeding procedures to remove air and ensure proper hydraulic pressure. Note that mounting hardware is not included, so reuse existing hardware or acquire appropriate fasteners. Verify thread pitch and outlet sizes to ensure compatibility with brake lines. It is recommended to inspect related brake components during installation for optimal system performance.
Quality Assurance and Warranty Information
Dorman manufactures this brake master cylinder to meet or exceed OEM specifications, using quality aluminum materials and precise machining. The inclusion of a sensor and reservoir supports reliable brake system operation. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulics products. Consult product documentation or the manufacturer for exact warranty terms.
| Brand | Dorman |
|---|---|
| Part Number | M39748 |
| Master Cylinder Bore Diameter | 0.938 |
| Master Cylinder Material | Aluminum |
| Mounting Hardware Included | No |
| Number of Outlets | 2 |
| Package Contents | Master Cylinder |
| Rearward Outlet Size | M10 X 1.0 |
| Reservoir Included | Yes |
| Secondary Outlet Thread Diameter | 10 |
| Sensor Included | Yes |
| Thread Pitch | 1.0 |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1996 | Mitsubishi | Mighty Max | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1995 | Mitsubishi | Mighty Max | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1994 | Mitsubishi | Mighty Max | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1993 | Dodge | Ram 50 | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1993 | Mitsubishi | Mighty Max | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1992 | Dodge | Ram 50 | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1992 | Mitsubishi | Mighty Max | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1991 | Dodge | Ram 50 | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1991 | Mitsubishi | Mighty Max | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1991 | Mitsubishi | Montero | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1990 | Dodge | Ram 50 | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1990 | Mitsubishi | Mighty Max | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1990 | Mitsubishi | Montero | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1989 | Dodge | Raider | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1989 | Mitsubishi | Montero | N/A | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1988 | Mitsubishi | Montero | N/A | Fitment note: Fits vehicles from June 1988. |
* 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.