OE Quality
60-Day Returns

Raybestos MC390994 Brake Master Cylinder
Overview of Raybestos MC390994 Brake Master Cylinder
The Raybestos Element3; New brake master cylinder MC390994 is designed specifically for Nissan Frontier models. Engineered with precision, this aluminum master cylinder ensures reliable brake hydraulics performance for your vehicle.
- Constructed from durable aluminum material
- Features a 1.000 inch bore size for consistent hydraulic pressure
- Includes 2 mounting holes with a diameter of 0.354 inches
- Equipped with 2 ports, both with M10x1 thread size
- Compatible with Nissan Frontier brake hydraulic systems
Detailed Product Description
The Raybestos MC390994 brake master cylinder is a critical component in the brake hydraulics system of Nissan Frontier vehicles. Made from aluminum, it offers a balance of strength and lightweight design, contributing to efficient brake response. The 1.000 inch bore size is calibrated to provide optimal hydraulic pressure, ensuring consistent brake pedal feel and performance. This master cylinder includes two mounting holes, each with a diameter of 0.354 inches, allowing for secure installation. Both primary and secondary ports feature M10x1 threading, compatible with standard brake line fittings for easy integration.
About the Element3; New Product Line
The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components that meet or exceed OEM specifications. This product line emphasizes quality materials and precise engineering, making it suitable for replacement parts like the MC390994 brake master cylinder. The Element3; New series is designed to provide consistent performance and durability for vehicles such as the Nissan Frontier.
Common Applications and Problem Resolution
- Replacement for worn or leaking brake master cylinders on Nissan Frontier models
- Restores proper hydraulic pressure for improved brake pedal feel
- Addresses brake fluid leaks caused by damaged ports or seals
- Solves issues related to inconsistent braking performance
- Prevents brake system failure due to master cylinder wear
Installation Notes and Tips
- Ensure compatibility with Nissan Frontier model year before installation
- Use proper torque specifications for mounting bolts with 0.354 inch hole diameter
- Bleed the brake system thoroughly after installation to remove air
- Inspect brake lines for damage and replace if necessary
- Verify port thread size M10x1 matches brake line fittings
Quality Assurance and Warranty
Raybestos manufactures the MC390994 brake master cylinder to meet strict quality standards. The aluminum construction and precise bore sizing contribute to long-lasting performance. While specific warranty details may vary, Raybestos products typically come with a limited warranty against defects in materials and workmanship, providing confidence in the part’s reliability for Nissan Frontier brake systems.
| Brand | Raybestos |
|---|---|
| Part Number | MC390994 |
| Position | Element3; New, N/A |
| Bore Size | 1.000 |
| 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 | M10x1 |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Body Type | # Doors | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2000 | Nissan | Frontier | Extended Cab Pickup | 4WD | 2.4L | L4 | N/A | Element3; New | |
| 1999 | Nissan | Frontier | Extended Cab Pickup | 2 Door | 4WD | 2.4L | L4 | 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.