Dorman - First Stop Brake Master Cylinder M630283

Dorman - First Stop Brake Master Cylinder M630283 - view 2

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Dorman - First Stop Brake Master Cylinder P/N:M630283

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$126.99

MPN: M630283

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Dorman - First Stop Brake Master Cylinder P/N:M630283

$126.99

Description

Convert brake-pedal force into the hydraulic pressure that feeds both brake circuits with the Dorman - First Stop Brake Master Cylinder (M630283). It's a direct-fit replacement engineered to match the original master cylinder's design, function, and performance on the listed 2003-2006 GM full-size trucks and SUVs (All engines), so it drops in like the unit it replaces.

Aluminum housing: the cylinder housing is built to match the casting material of the original part for similar performance.
EPDM rubber 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.
Built to spec: made to meet rigorous SAE International standards.

This unit has two outlets, a 1.25 in bore, and a 1/2-20 rearward/secondary outlet thread. Per the catalog it includes a reservoir and a sensor. 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: 174-795 · 174795 · 100-2636 · 1002636 · 13906 · 13-3082 · 133082 · 13-4246 · 134246 · 10-3082 · 103082 · 130.66048 · 131.66048 · MC512600 · 355-47175 · 35547175 · 18047527 · NM4073 · MC390806 · F140375 · F140376 · MC140375 · MC140376. Manufacturer part number M630283.

Fitment: 2003 Chevrolet Avalanche 1500 [All] · 2003-2004 Chevrolet Silverado 1500 [All] · 2003 Chevrolet Silverado 1500 HD [All] · 2003-2006 Chevrolet Suburban 1500 [All] · 2003-2004 Chevrolet Tahoe [All] · 2003-2004 GMC Sierra 1500 [All] · 2003 GMC Sierra 1500 HD [All] · 2003-2004 GMC Yukon [All] · 2003-2006 GMC Yukon XL 1500 [All]. See the Buyer's Guide tab for the full list.

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

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

174-795, 100-2636, 13906, 13-3082, 13-4246, 10-3082, 130.66048, 131.66048, MC512600, 355-47175, 18047527, NM4073, MC390806, F140375, F140376, MC140375, MC140376

Frequently Asked Questions

What does this brake master cylinder do?

It converts brake-pedal force into the hydraulic pressure that feeds the vehicle's two brake circuits through its two outlets. This unit has an aluminum housing and a 1.25 in bore.

Does it include a reservoir and sensor?

Yes. Per the catalog, both the reservoir and a sensor are included with this master cylinder.

Is mounting hardware included?

No, mounting hardware is not included. Consult the vehicle service information for the correct fasteners and whether they may be reused.

Which vehicles does M630283 fit?

It's a direct-fit replacement for the 2003-2006 Chevrolet Suburban 1500, 2003-2004 Silverado 1500 and Tahoe, GMC Sierra 1500 and Yukon and more (All engines). See the Buyer's Guide tab for the full list.

What are signs my master cylinder may need replacing?

Signs may include a brake pedal that slowly sinks, feels spongy, or brake fluid leaking near the cylinder. Diagnose the cause first, since other components can cause these symptoms.