Brake Master Cylinder for 1989-1995 Toyota 4Runner & More - Dorman M39996

Turn every press of the brake pedal into steady hydraulic pressure with the Dorman First Stop Brake Master Cylinder M39996. This new replacement is precision-engineered to match the design, function and performance of the original master cylinder. It fits many vehicles, among them the 1989-1995 Toyota 4Runner, 1989-1995 Toyota Pickup and 1993-1994 Toyota Land Cruiser, all engines. See the Buyer's Guide tab for the full list.

• Precise replacement: The cylinder housing is cast iron, built to match the casting material of the original part and intended to deliver similar performance.
• Durable design: Every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
• 100% new: It is made entirely from new, high-quality materials for a safe, durable replacement.
• Strict specifications: It is built to meet rigorous SAE International standards.

Specifications: The unit has two outlets and a 1 in bore diameter. The rearward and secondary outlet threads are M10 x 1.0, and the primary outlet thread pitch is 1 mm. The reservoir and sensor are included. Mounting hardware is not included. Country of origin: China.

Signs the master cylinder may need replacing include a soft or sinking brake pedal, brake fluid leaking from the unit, or a falling fluid level with no other visible leak. Diagnose the cause before replacing parts. If the master cylinder is at fault, M39996 replaces it. After installation, bleed the brake system as directed in the vehicle service information.