Dorman - First Stop Brake Master Cylinder P/N:M630921
Turn pedal effort into hydraulic pressure for the brakes with the Dorman First Stop 1982-1983 Nissan 280ZX master cylinder, part number M39408. It is a direct-fit replacement for the 1982-1983 Nissan 280ZX with all engines. It is engineered to mirror the original master cylinder's design, function, and performance, and it is built from new, high-quality materials.
Specifications: 0.938 in bore diameter · 2 outlets · M10 x 1.0 rearward outlet · M10 x 1.0 secondary outlet thread · 1 mm primary outlet thread pitch · reservoir included · sensor included · mounting hardware not included · country of origin: Taiwan.
A soft or sinking pedal, or brake fluid seeping at the cylinder, may be a sign that the master cylinder needs replacing. If the original unit is the cause, M39408 replaces it. Diagnose the brake system before ordering. This listing is for one master cylinder, and the listed application uses one per vehicle.
Interchange: 83-04605 · 100-1458 · M-51605 · 072-8240 · 13-1979 · 11-1979 · 130.42605 · 355-67091
18M214 · M900414 · 11979 · MC510660 · M51979 · NM51979 · 46010P9100 · MC391431 · F107362 · MC107362 · 8304605 · 1001458 · M51605 · 0728240 · 131979 · 111979 · 13042605 · 35567091
This part cross-references / interchanges with the following part numbers:
Will this fit my 1982-1983 Nissan 280ZX?
It is listed for the 1982-1983 Nissan 280ZX with all engines, and that application uses one master cylinder per vehicle.
What standards is this brake master cylinder built to?
It is built to meet rigorous SAE International standards and is made entirely of new, high-quality materials.
Does it come with a reservoir and sensor?
Yes, the reservoir and a sensor are both included. Mounting hardware is not included, so consult the vehicle service information for the correct fasteners.
What are the rubber components made of?
All rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid. Use the fluid type specified in your vehicle's service information.
What are signs a master cylinder may need replacing?
A soft or sinking pedal or fluid seeping at the cylinder may indicate a worn master cylinder. These signs can have other causes, so diagnose the brake system before replacing it.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.