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Dorman M9220 Brake Master Cylinder
| Brand | Dorman M9220 |
|---|---|
| Master Cylinder Bore Diameter | 1.25 |
| Master Cylinder Material | Cast Iron |
| Mounting Hardware Included | No |
| Number of Outlets | 1 |
| Package Contents | Master Cylinder |
| Rearward Outlet Size | 7/16-24 |
| Reservoir Included | Yes |
| Sensor Included | No |
| Fits | Chevrolet and GMC |
Precision-engineered replacement. Matches the original master cylinder's design, function, and performance.
Cast iron construction. Built from new materials for durable brake hydraulics.
Reservoir included. Ready for a complete master cylinder replacement.
Cross-references BBB Industries 11024, Centric Parts 130.80001 and Raybestos Brakes MC9220 for the same application. See all 10.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Brake Master Cylinder for OE-Style Replacement
Dorman M9220 is a brake master cylinder built to match the original design, function, and performance on specific vehicle applications. It uses new, high-quality materials and a cast iron body for a durable replacement in brake hydraulic service.
With a 1.25-inch bore diameter, integrated reservoir, and one outlet with a 7/16-24 rearward outlet size, this master cylinder is a direct-fit solution for select brake system repairs. It is a practical choice for drivers searching for a Dorman M9220 brake master cylinder for OE-style replacement on specific make/model applications.
Key Features
- Brand: Dorman
- Part number: M9220
- Brake master cylinder for brake hydraulics service
- 1.25-inch bore diameter
- Cast iron master cylinder material
- Reservoir included
- One outlet with 7/16-24 rearward outlet size
- Sensor not included
- Mounting hardware not included
Product Details
This Dorman brake master cylinder is engineered as a replacement for the original unit on select vehicles, including applications searched as brake master cylinder for Honda Civic and brake master cylinder for compatible make/model brake repairs. The M9220 is built from new materials to restore hydraulic pressure transfer in the braking system while matching the original fit and function expected from an OE-style replacement. Cross-reference part numbers include Raybestos Brakes MC9220 and BBB Industries 11024 for the same application.
Common Problems It Can Help Address
- Soft or inconsistent brake pedal feel
- Internal hydraulic leakage in the master cylinder
- Loss of brake pressure during braking
- Brake fluid seepage around the master cylinder body
- Reduced braking response caused by worn hydraulic components
Installation Notes and Tips
Verify bore diameter, outlet size, reservoir configuration, and outlet count before installation. Bench bleeding is typically required after master cylinder replacement to remove trapped air from the hydraulic circuit. Inspect brake lines, fittings, and fluid condition during service, and confirm the brake system is fully bled before returning the vehicle to operation. This part number M9220 should be matched to the vehicle’s original brake master cylinder specifications before installation.
Quality Assurance
Dorman manufactures this master cylinder as a precision-engineered replacement intended to match original design and performance requirements on specific applications. The cast iron construction and new-material build support consistent brake hydraulic service for select vehicles.
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