Dorman - First Stop Brake Master Cylinder M390320

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Brake Master Cylinder for 1991-1994 Oldsmobile Bravada & More - Dorman M390320

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$51.99

MPN: M390320

Item Package Quantity: 1

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Dorman - First Stop Brake Master Cylinder P/N:M390320

$51.99

Description

Turn pedal effort into hydraulic pressure for your brakes with the Dorman First Stop Brake Master Cylinder M390320. It fits many vehicles, among them the 1995-1997 Chevrolet Blazer, 1982-1997 Chevrolet S10 and 1992-1997 GMC Jimmy. See the Buyer's Guide tab for the full list. The master cylinder is precision-engineered to match the design, function and performance of the original unit, and it is a direct-fit replacement for the listed applications.

Precise replacement: The master cylinder is aluminum. Its housing is built to match the original part's material for 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 of new materials for quality and safety.
Strict specifications: It is made to meet rigorous SAE International standards.

Specifications: The unit has 2 outlets, and the rearward outlet size is 1/2-20. The reservoir is included. Mounting hardware and a sensor are not included. The package contains one master cylinder, and the listed applications use one. Country of origin: China.

Signs this part may need replacing: Watch for a soft or sinking brake pedal, brake fluid leaking at the cylinder, or a lit brake warning light. These symptoms can have other causes, so diagnose the brake system first. If the master cylinder is at fault, M390320 replaces it. Bleed the brakes after installation as the vehicle service information directs.

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

Frequently Asked Questions

Is this the right 1982-1997 Chevrolet S10 master cylinder?

It is listed as a direct-fit replacement for the 1982-1997 Chevrolet S10 with all engines, and the S10 uses one. Confirm your exact vehicle in the Buyer's Guide tab.

Can I use this as a 1992-1997 GMC Jimmy master cylinder?

Yes. It is listed for the 1992-1997 GMC Jimmy and also fits the 1995-1997 Chevrolet Blazer. Check the Buyer's Guide tab for your exact vehicle.

Does it come with a reservoir?

Yes, the reservoir is included. Mounting hardware and a sensor are not included.

What are the key specs of Dorman M390320?

It is a new aluminum master cylinder with 2 outlets and a 1/2-20 rearward outlet size. Its rubber components use an EPDM compound that resists glycol-based brake fluid.

What are signs a brake master cylinder may need replacing?

Common signs are a soft or sinking pedal, fluid leaks at the cylinder, or a brake warning light. Diagnose the cause first, and bleed the brakes after installation as the service information directs.