Dorman - First Stop Brake Master Cylinder P/N:M390089

Turn pedal effort into the hydraulic pressure your brakes depend on with the Dorman First Stop Brake Master Cylinder M390089. It is a direct-fit replacement for the 1992-2000 Mitsubishi Montero and the 1997-1999 and 2001-2003 Mitsubishi Montero Sport. Dorman precision-engineered it to mirror the original master cylinder's design, function and performance on these Mitsubishi models, and it is built from new, high-quality materials for a safe, durable replacement.

• Precise replacement: the aluminum cylinder housing is built to match the original part's material and is intended to deliver similar performance.
• Durable design: every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
• 100% new: made entirely from new materials for quality and safety.
• Strict specifications: made to meet rigorous SAE International standards.

Specifications: 0.938 in bore diameter · 2 outlets · M10 x 1.0 secondary outlet thread diameter · M10 x 1.0 rearward outlet size · 1 mm primary outlet thread pitch · reservoir included · sensor not included · mounting hardware not included · country of origin: Taiwan.

The master cylinder converts pedal force into hydraulic pressure that feeds the brake lines. Signs it may need replacing include a soft or spongy pedal, a pedal that slowly sinks under steady pressure, or brake fluid leaking at the cylinder. Diagnose the cause before replacing, because these symptoms can also come from other parts of the brake system.

Fitment (engine code):
1992-2000 Mitsubishi Montero: All
1997-1999 Mitsubishi Montero Sport: All
2001-2003 Mitsubishi Montero Sport: All

Interchange: 83-16307 · 100-1858 · M-52307 · 072-8903 · 13-2752 · 11-2752 · 130.46307 · 355-72035
18M611 · M900820 · 12647 · MC502850 · M52752 · NM52752 · MB618717 · MC390089 · F133792 · MC133792 · 8316307 · 1001858 · M52307 · 0728903 · 132752 · 112752 · 13046307 · 35572035