Dorman M390215 Brake Master Cylinder

Overview of Dorman Brake Master Cylinder M390215

The Dorman Brake Master Cylinder M390215 is designed specifically for Dodge and Plymouth Neon models, providing reliable brake hydraulics performance. This master cylinder features an aluminum construction and includes a reservoir and sensor for efficient brake system operation.

• Compatible with Dodge Neon and Plymouth Neon vehicles
• Master cylinder bore diameter of 21 mm for precise hydraulic control
• Durable aluminum material construction
• Includes reservoir and sensor for integrated brake system monitoring
• Four outlets with rearward outlet size of (2) 3/8-24 and secondary outlet thread diameter of (2) 7/16-24
• Mounting hardware not included

Detailed Product Description

The Dorman M390215 brake master cylinder is engineered to meet the specific hydraulic requirements of Dodge and Plymouth Neon models. Its 21 mm bore diameter ensures accurate pressure delivery to the brake system, while the aluminum material offers corrosion resistance and long-term durability. This master cylinder comes complete with a reservoir and sensor, allowing for seamless integration with the vehicle’s brake fluid monitoring system. Featuring four outlets, including two rearward outlets sized at 3/8-24 and two secondary outlets with 7/16-24 thread diameter, this part supports complex brake line configurations commonly found in Neon brake systems.

Common Applications and Problem Resolution

• Replaces worn or leaking master cylinders causing brake fluid loss
• Restores proper brake pedal feel and hydraulic pressure
• Addresses brake warning light issues related to sensor failure
• Fixes inconsistent braking performance due to internal cylinder wear
• Supports brake system upgrades requiring specific outlet configurations

Installation Notes and Tips

• Ensure compatibility with Dodge Neon or Plymouth Neon before installation
• Bleed the brake system thoroughly after installation to remove air
• Use appropriate brake fluid as specified by the vehicle manufacturer
• Mounting hardware is not included; retain original hardware or source separately
• Inspect brake lines and fittings for wear or damage during installation

Quality Assurance and Warranty

Dorman manufactures the M390215 brake master cylinder to meet or exceed OEM specifications for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. While mounting hardware is not included, the product undergoes quality checks to ensure durability and proper operation. Warranty coverage details should be confirmed through the product documentation or Dorman directly.