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Dorman - First Stop Brake Master Cylinder P/N:M39962
$155.99
Convert brake-pedal force into the hydraulic pressure that operates your brake circuits with the Dorman - First Stop Brake Master Cylinder M39962. It drops in as a direct-fit replacement for the 1991 Buick Reatta, 1991-1992 Buick Riviera, 1994 Cadillac DeVille, 1991-1992 Cadillac Eldorado, 1991-1992 Cadillac Seville and 1991-1992 Oldsmobile Toronado (All engines).
- 100% new: made entirely of new materials, not remanufactured.
- Aluminum housing: built to match the casting material of the original part for similar performance.
- Durable design: the rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
- Outlet specs: two outlets with a 1-inch bore; rearward outlet M11 x 1.5, secondary outlet thread M12 x 1.0, primary outlet thread pitch 1 mm.
This unit includes the reservoir and sensor. Mounting hardware is not included — consult the vehicle service information for the correct fasteners and whether they may be reused. Made to meet rigorous SAE International standards. Country of origin: China.
Interchange: 174-706 · 174706 · 18M514 · 783-36085 · 78336085 · 83-36085 · 8336085 · M900721 · 100-2298 · 1002298 · M-82085 · M82085 · 12510 · 13-2563 · 132563 · 10-2563 · 102563 · 130.62085 · 13062085 · MC251120 · 355-46008 · 35546008 · 18016545 · 18020390 · M3002 · NM3002 · MC39962 · F123539 · MC123539
Manufacturer part number M39962.
This part cross-references / interchanges with the following part numbers:
174-706, 18M514, 783-36085, 83-36085, M900721, 100-2298, M-82085, 12510, 13-2563, 10-2563, 130.62085, MC251120, 355-46008, 18016545, 18020390, M3002, NM3002, MC39962, F123539, MC123539
Frequently Asked Questions
What vehicles does the M39962 master cylinder fit?
Fits the 1991 Buick Reatta, 1991-1992 Buick Riviera, 1994 Cadillac DeVille, 1991-1992 Cadillac Eldorado and Seville, and 1991-1992 Oldsmobile Toronado (All engines). See the Buyer's Guide tab for details.
Does it include a reservoir and sensor?
Yes. This master cylinder includes both the reservoir and the sensor. Mounting hardware is not included.
Is it a new or remanufactured unit?
It is 100% new, made entirely of new materials rather than remanufactured, and built to meet rigorous SAE International standards.
What are its outlet specifications?
It has two outlets and a 1-inch bore. The rearward outlet is M11 x 1.5, the secondary outlet thread is M12 x 1.0, and the primary outlet thread pitch is 1 mm.
What are signs the master cylinder may need replacing?
A sinking or spongy brake pedal, or brake-fluid seepage at the cylinder, can be signs. Diagnose the cause first, since these symptoms may have other sources.
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Dorman
Dorman - First Stop Brake Master Cylinder P/N:M39962
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