Dorman - First Stop Brake Master Cylinder P/N:M390342

Turn pedal effort into hydraulic brake pressure with the Dorman First Stop brake master cylinder M390342, a direct-fit Nissan Pathfinder master cylinder for 1996-2001 models that also fits the 1997-2001 Infiniti QX4 with all engines. Dorman designed this new unit to match the design, function and performance of the original master cylinder on the listed applications, and built it from new, high-quality materials.

• Precise replacement: The aluminum cylinder housing is constructed to match the original part's housing material for similar performance.
• Durable design: Every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
• 100% new: Made entirely of new materials.
• Strict specifications: Built to meet rigorous SAE International standards.

Specifications: 1-inch bore diameter and two outlets, with an M10 x 1.0 secondary (rearward) outlet thread and a 1 mm primary outlet thread pitch. The reservoir and a sensor are included; mounting hardware is not included. Country of origin: Taiwan.

A master cylinder may need replacing if the brake pedal feels soft or sinks, if brake fluid leaks at the master cylinder, or if the fluid level keeps dropping. Other brake faults can cause similar symptoms, so diagnose the cause first. If a failed master cylinder is the cause, this replaces it. Bleed the brake system after installation and follow the vehicle service information for the correct fasteners and torque.

Interchange: 83-04316 · 100-1415 · M-51316 · 072-9209 · 13-2780 · 11-2780 · 11-3567 · 130.42316 · 131.42316 · 355-67041
8304316 · 1001415 · M51316 · 0729209 · 132780 · 112780 · 113567 · 13042316 · 13142316 · 35567041 · M901015 · MC503960 · M52780 · M55075 · NM52780 · NM55075 · 460100W002 · 460100W022 · 460103W420 · MC390342 · MC390948 · F134560 · MC134560