Dorman - First Stop Brake Master Cylinder P/N:M39638

Turn pedal effort into hydraulic brake pressure with the Dorman First Stop Brake Master Cylinder M39638, a new 1987-1993 Dodge Dakota master cylinder listed for all engines. It is precision-engineered to match the original master cylinder's design, function and performance on the listed application, and the reservoir is included.

• Precise replacement: The cast iron cylinder housing is constructed to match the casting material of the original part, for similar performance.
• Durable design: All rubber components are made from a high-quality EPDM compound for resistance to glycol-based brake fluid.
• 100% new: Made entirely from new, high-quality materials for a safe, durable replacement.
• Strict specifications: Made to meet rigorous SAE International standards.

Specifications: 24 mm bore diameter; 2 outlets; 1/2-20 rearward outlet size; 9/16-20 secondary outlet thread diameter; reservoir included; sensor not included; mounting hardware not included. Country of origin: China.

A master cylinder converts force from the brake pedal into hydraulic pressure that feeds the brake lines. Signs this master cylinder may need replacing include a soft or sinking pedal, fluid seeping from the unit, or a fluid level that keeps dropping. Other brake components can cause these symptoms too, so diagnose the system before replacing parts. Follow the vehicle service information for installation and brake bleeding. It also gives the correct fasteners and whether they may be reused.

Interchange: 783-40010 · 83-40010 · 100-2665 · M-87010 · 13-2393 · 10-2393 · 130.67010 · 131.67010 · 355-40055
78340010 · 8340010 · 1002665 · M87010 · 132393 · 102393 · 13067010 · 13167010 · 35540055 · 18M356 · M900562 · 12396 · 12837 · 4294311 · 4294312 · 4294721 · 4897208AA · MC114497 · M2115 · NM2115 · F114496 · F114497 · F128340 · MC114496