HomeBrake > Brake HydraulicsDorman M39319 Brake Master Cylinder
Part #: M39319

Dorman M39319 Brake Master Cylinder

⚙️ 4 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Nissan, 810 and Maxima
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Reliable Brake Master Cylinder for Nissan Maxima 810

The Dorman M39319 brake master cylinder is engineered to restore proper brake hydraulics for Nissan Maxima 810 models. Designed with precision, this aluminum master cylinder includes a reservoir and sensor to ensure consistent brake performance.

  • Master cylinder bore diameter: 0.875 inches for accurate hydraulic pressure
  • Constructed from durable aluminum material for corrosion resistance
  • Includes reservoir for fluid storage and sensor for monitoring brake system status
  • Two outlets with rearward outlet size M10 x 1.0 and secondary outlet thread diameter 10 mm
  • Thread pitch of 1.0 for secure fitting

Product Details and Specifications

The Dorman M39319 brake master cylinder is specifically designed for Nissan Maxima 810 vehicles, ensuring compatibility and reliable operation. Its aluminum construction provides strength and resistance to wear, while the included reservoir allows for proper brake fluid containment. The master cylinder features a bore diameter of 0.875 inches, which is critical for maintaining the correct hydraulic pressure within the brake system. Equipped with two outlets, including a rearward outlet sized M10 x 1.0 and a secondary outlet with a 10 mm thread diameter, this part supports efficient brake fluid distribution. Additionally, the integrated sensor helps monitor brake system performance, contributing to vehicle safety.

Common Applications and Problem Resolution

  • Restores brake hydraulic pressure in Nissan Maxima 810 models
  • Replaces worn or leaking master cylinders causing brake fluid loss
  • Addresses brake pedal sponginess or failure due to master cylinder issues
  • Resolves sensor-related brake warning light activation
  • Improves overall brake system responsiveness and safety

Installation Notes and Tips

Installation of the Dorman M39319 brake master cylinder requires proper brake system bleeding to remove air and ensure optimal hydraulic function. Verify thread pitch and outlet sizes match the vehicle’s brake lines before installation. Since mounting hardware is not included, retain original hardware or source compatible fasteners. Consult the Nissan Maxima 810 service manual for torque specifications and detailed installation procedures.

Quality Assurance and Warranty

Dorman manufactures the M39319 brake master cylinder to meet or exceed OEM standards for fit and function. The aluminum construction and integrated sensor contribute to long-term durability and reliable brake system operation. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship.

BrandDorman
Part NumberM39319
Mounting Hardware IncludedNo
Master Cylinder Bore Diameter0.875
Master Cylinder MaterialAluminum
Reservoir IncludedYes
Secondary Outlet Thread Diameter10
Sensor IncludedYes
Number of Outlets2
Package ContentsMaster cylinder
Rearward Outlet SizeM10 x 1.0
Thread Pitch1.0

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
1984NissanMaximaN/AFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
1983NissanMaximaN/AFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
1982NissanMaximaN/AFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
1981Nissan810N/AFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.

* 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:

11-193311933130.4240018M16646010W2400783-04400F105254M-51400M51933M900366MC39319MC506870

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.