Convert brake-pedal force into the hydraulic pressure that operates your brakes with the Dorman First Stop Brake Master Cylinder M101267. Precision-engineered to match the design, function and performance of the original master cylinder, it drops in as a direct-fit replacement across the listed applications — including the 1976 Cadillac Calais, DeVille and Fleetwood; 1976-1980 Chevrolet C20, K20 and P20 trucks plus C10, C20, K10 and K20 Suburban; and 1976-1980 GMC C/K/P-series trucks and Suburbans. See the Buyer's Guide tab for the full list of 24 applications (engine: All).
- Cast iron housing: the cylinder housing is constructed to match the casting material of the original part for similar performance.
- Durable EPDM seals: all rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
- 100% new: made entirely of new materials, not remanufactured.
- Built to spec: made to meet rigorous SAE International standards, with a 1.125 in bore diameter, two outlets and a 1/2-20 rearward outlet size.
The reservoir is included; a sensor is not included, and mounting hardware is not included — consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.
Interchange: 18M66 · 83-44018 · 8344018 · M900226 · 100-2598 · 1002598 · M-86018 · M86018 · 11732 · 13-1732 · 131732 · 10-1732 · 101732 · 130.66018 · 13066018 · MC101267 · 355-46024 · 35546024 · 18000804 · 18000806 · 18000997 · 18002456 · 18005251 · 18009497 · 2623180 · 101267 · M1732 · NM1732 · 2539009 · MC39009 · F101267. Manufacturer part number M101267.
This part cross-references / interchanges with the following part numbers:
18M66, 83-44018, M900226, 100-2598, M-86018, 11732, 13-1732, 10-1732, 130.66018, MC101267, 355-46024, 18000804, 18000806, 18000997, 18002456, 18005251, 18009497, 2623180, 101267, M1732, NM1732, 2539009, MC39009, F101267
