Dorman - First Stop Brake Master Cylinder M98964

Dorman - First Stop Brake Master Cylinder M98964 - view 2

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Dorman - First Stop Brake Master Cylinder P/N:M98964

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$91.99

MPN: M98964

Item Package Quantity: 1

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Dorman - First Stop Brake Master Cylinder P/N:M98964

$91.99

Description

Generate the hydraulic pressure that pushes fluid out to the wheel brakes with the Dorman - First Stop Brake Master Cylinder M98964. It installs as a direct-fit replacement engineered to match the design, function, and performance of the original master cylinder on the 1978-1983 Jeep CJ5, 1978-1983 Jeep CJ7, and 1981-1983 Jeep Scrambler (all engines).

Cast iron housing: the cylinder housing is constructed to match the casting material of the original part for similar performance.
Two outlets, 1 in bore: features a 1-inch bore diameter and a rearward outlet size of 1/2-20.
Durable EPDM components: the rubber parts use a high-quality EPDM compound for resistance to glycol-based brake fluid.
100% new: made entirely of new materials, not remanufactured, and built to meet rigorous SAE International standards.

The reservoir is included; a sensor is not. Mounting hardware is not included — consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.

Manufacturer part number M98964.

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

Frequently Asked Questions

What does the M98964 master cylinder do?

It converts brake-pedal force into hydraulic pressure and sends brake fluid through its two outlets to operate the vehicle's braking system.

Which vehicles does this master cylinder fit?

It's a direct-fit replacement for the 1978-1983 Jeep CJ5, 1978-1983 Jeep CJ7, and 1981-1983 Jeep Scrambler (all engines). See the Buyer's Guide tab to confirm.

Does it include a reservoir, sensor, or mounting hardware?

The reservoir is included. A sensor is not included, and mounting hardware is not included with this master cylinder.

What are the bore and outlet specs?

It has a 1-inch bore, two outlets, and a rearward outlet size of 1/2-20. The housing is cast iron and made of 100% new materials.

What are signs my master cylinder may need replacing?

A brake pedal that slowly sinks to the floor, a spongy pedal, or brake fluid loss can be signs. Diagnose the cause first, since other components can produce similar symptoms.