Dorman - First Stop Brake Master Cylinder P/N:M101262

Turn every push of the brake pedal into steady hydraulic pressure with the Dorman - First Stop Brake Master Cylinder M101262. It drops in as a direct-fit replacement for the 1979-1981 Buick Riviera and Oldsmobile Toronado, plus a range of 1981 GM models including the Buick Century and Regal, Chevrolet El Camino, Malibu and Monte Carlo, GMC Caballero, Oldsmobile Cutlass, Cutlass Calais, Cutlass Cruiser and Cutlass Supreme, and Pontiac Grand Prix and LeMans (engine: All).

This master cylinder is precision-built to match the design, function and performance of the original unit on the listed applications, so it pressurizes the brake circuits the way the factory part did.

• Cast-iron housing: constructed to match the casting material of the original part for similar performance.
• EPDM rubber components: made from a high-quality EPDM compound for resistance to glycol-based brake fluid.
• 100% new: built entirely from new materials, not remanufactured.
• Built to spec: made to meet rigorous SAE International standards, with two outlets, a 24 mm bore, and a 1/2-20 rearward outlet.

A sinking or spongy pedal, internal fluid bypass, or fluid loss at the master cylinder are signs this component may need replacing; diagnose the cause before installing. A reservoir is included; a sensor and mounting hardware are not. Consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.

Interchange: 18M124 · 783-36004 · 78336004 · 83-36004 · 8336004 · 83-50004 · 8350004 · M900318 · 100-2210 · 1002210 · M-82004 · M82004 · 11739 · 13-1739 · 131739 · 10-1739 · 101739 · 130.62004 · 131.62004 · MC101262 · 355-47025 · 35547025 · 18005771 · 18006635 · 18008062 · 18008063 · 18010386 · M1739 · NM1739 · 2539210 · MC39210 · F101262