Dorman M39578 Master Cylinder
Regular price
$42.98
Couldn't load pickup availability
Product Description
This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement.
- Precise replacement - cylinder housing is constructed to match the casting material of the original part and ensure similar performance
- Durable design - all rubber components are made of high-quality EPDM compound for resistance to glycol-based brake fluid
- 100% new - made entirely of new materials, not remanufactured, to ensure highest quality and safety
- Strict specifications - made to meet rigorous SAE International standards
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 1995 | Chevrolet | G10 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1995 | Chevrolet | G20 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1995 | GMC | G1500 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1995 | GMC | G2500 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1994 | Chevrolet | G10 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1994 | Chevrolet | G20 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1994 | GMC | G1500 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1994 | GMC | G2500 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1993 | Chevrolet | Astro | 2-Wheel ABS; Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1993 | Chevrolet | G10 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1993 | Chevrolet | G20 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1993 | GMC | G1500 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1993 | GMC | G2500 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1993 | GMC | Safari | 2-Wheel ABS; Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1992 | Chevrolet | Astro | 2-Wheel ABS; Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1992 | Chevrolet | G10 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1992 | Chevrolet | G20 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1992 | GMC | G1500 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1992 | GMC | G2500 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1992 | GMC | Safari | 2-Wheel ABS; Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1991 | Chevrolet | Astro | 2-Wheel ABS; Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1991 | Chevrolet | G10 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1991 | Chevrolet | G20 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1991 | GMC | G1500 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1991 | GMC | G2500 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1991 | GMC | Safari | 2-Wheel ABS; Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1990 | Chevrolet | Astro | 2-Wheel ABS; Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1990 | Chevrolet | G10 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1990 | Chevrolet | G20 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1990 | GMC | G1500 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1990 | GMC | G2500 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1990 | GMC | Safari | 2-Wheel ABS; Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1989 | Chevrolet | Astro | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1989 | Chevrolet | G10 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1989 | Chevrolet | G20 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1989 | Chevrolet | P20 | Power Brakes; GAS | 11.15 In. x 2.75 In. Rear Brakes; Bore: 1.125 In. and 1.5781 In. | |
| 1989 | GMC | G1500 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1989 | GMC | G2500 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1989 | GMC | P2500 | Power Brakes; GAS | 11.15 In. x 2.75 In. Rear Brakes; Bore: 1.125 In. and 1.5781 In. | |
| 1989 | GMC | Safari | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1988 | Chevrolet | Astro | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1988 | Chevrolet | G10 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1988 | Chevrolet | G20 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1988 | Chevrolet | P20 | Power Brakes; GAS | 11.15 In. x 2.75 In. Rear Brakes; Bore: 1.125 In. and 1.5781 In. | |
| 1988 | GMC | G1500 | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1988 | GMC | G2500 | Power Brakes; GAS | Bore: 1.125 In. and 1.5781 In. | |
| 1988 | GMC | P2500 | Power Brakes; GAS | 11.15 In. x 2.75 In. Rear Brakes; Bore: 1.125 In. and 1.5781 In. | |
| 1988 | GMC | Safari | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1987 | Chevrolet | Astro | Power Brakes | Bore: 1.125 In. and 1.5781 In. | |
| 1987 | Chevrolet | G10 | Power Brakes | Bore: 1.125 In. and 1.5781 In. |
Product Specifications
| Master Cylinder Bore Diameter: | 1.125 in; 1.578 in |
|---|---|
| Master Cylinder Material: | Aluminum |
| Mounting Hardware Included: | No |
| Number of Outlets: | 2 |
| Package Contents: | Master Cylinder |
| Package Quantity: | 1 |
| Packaging Type: | Box |
| Rearward Outlet Size: | 1/2-20 |
| Reservoir Included: | Yes |
| Sensor Included: | No |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 18010556 | GENERAL MOTORS |
| 18013440 | GENERAL MOTORS |