Dorman - First Stop Brake Master Cylinder M630284

Dorman - First Stop Brake Master Cylinder M630284 - view 2

Dorman - First Stop Brake Master Cylinder M630284 - view 3

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Dorman - First Stop Brake Master Cylinder P/N:M630284

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$168.99

MPN: M630284

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Dorman - First Stop Brake Master Cylinder P/N:M630284

$168.99

Description

Turn every push of the brake pedal into the hydraulic pressure that operates the wheel brakes with the Dorman First Stop Brake Master Cylinder M630284. It drops in as a direct-fit replacement for the 2003-2006 Cadillac Escalade, Escalade ESV and Escalade EXT, 2003 and 2005-2006 Chevrolet Avalanche 1500, 2003-2005 Chevrolet Blazer, 2003-2006 Chevrolet Suburban 1500, Chevrolet Tahoe, GMC Yukon and GMC Yukon XL 1500 (all engines) — see the Buyer's Guide tab for the full list. It's precision-engineered to reproduce the design, function, and performance of the original master cylinder across the applications it covers.

Aluminum housing: constructed to match the casting material of the original part for similar performance.
EPDM rubber components: made to resist glycol-based brake fluid.
100% new: built entirely of new materials, not remanufactured.
SAE-spec build: made to meet rigorous SAE International standards.

This master cylinder has a 34 mm bore and two outlets with a 1/2-20 secondary outlet thread, and it ships with the fluid reservoir and sensor included. 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: 174-798 · 174798 · 100-2638 · 1002638 · 13914 · 13-3100B · 133100B · 10-3100 · 103100 · 130.66049 · 131.66049 · MC512610 · 355-47176 · 35547176 · 15269947 · 18047540 · 19209199 · M4074 · NM4074A · MC390804 · F140377 · MC140377
Manufacturer part number M630284

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

This part cross-references / interchanges with the following part numbers:

174-798, 100-2638, 13914, 13-3100B, 10-3100, 130.66049, 131.66049, MC512610, 355-47176, 15269947, 18047540, 19209199, M4074, NM4074A, MC390804, F140377, MC140377

Frequently Asked Questions

What does this brake master cylinder do?

It converts brake-pedal force into hydraulic pressure and distributes it through its two outlets to actuate the vehicle's brakes.

What vehicles does M630284 fit?

Direct-fit for 2003-2006 Cadillac Escalade/ESV/EXT, 2003 and 2005-2006 Chevy Avalanche 1500, 2003-2005 Blazer, 2003-2006 Suburban 1500/Tahoe, and 2003-2006 GMC Yukon/Yukon XL 1500. See the Buyer's Guide tab for the full list.

Is it new or remanufactured?

It's 100% new, made entirely of new materials rather than remanufactured, and built to meet rigorous SAE International standards.

Does it include the reservoir, sensor, and mounting hardware?

The fluid reservoir and sensor are included. Mounting hardware is not; consult the vehicle service information for the correct fasteners and whether they may be reused.

How do I know if my master cylinder may need replacing?

Signs may include a brake pedal that slowly sinks, feels spongy, or fluid seeping at the unit. Diagnose the cause first, since other brake components can produce similar symptoms.