Brake Master Cylinder With Reservoir OE Replacement For 2002 To 2005 Trailblazer, 2002 To 2005 Envoy, 2004 To 2005 Rainier, 2004 To 2006 SSR, 2002 To 2004 Bravada, Easy Bolt On High Performance Aluminum Body Direct Fit Replaces OEM Part M630037

Direct-Fit Brake Master Cylinder with Reservoir for GM SUVs
✔️ Aluminum body, reservoir included, 2 outlets, 1 in bore, Single unit

This brake master cylinder with integrated reservoir is a direct-fit OE replacement designed for GM pickups and SUVs from the early 2000s. It’s built to restore precise hydraulic braking in models like Trailblazer, Envoy, Rainier, SSR, Bravada, and related variants.

✅ Condition: New
✅ Reservoir Included: Yes
✅ Material: ZL101A Aluminum
✅ Master Cylinder Bore Diameter: 1 in
✅ Number of Outlets: 2
✅ Rearward Outlet Size: 1/2-20
✅ Sensor Included: Yes
✅ Direct-Fit OE Replacement: Yes

💡 What is a brake master cylinder with reservoir used for?

A handy component in braking systems that stores brake fluid and creates hydraulic pressure to apply the brakes.

• Converts pedal input into hydraulic force to actuate the braking system
• Maintains fluid levels to prevent air in the lines and pedal fade
• Designed for direct-fit OE replacement on GM SUVs and trucks from the early 2000s