Meritor GAFF20253 - Brake Master Cylinder Piston Cup - 1" Length, 1-1/4" ID, 3-3/32" OD
$1349
MSRP: $674.97
Save: $661.48
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MERITOR part description
| Application | Safety |
| Inside Diameter | 31.75 mm |
| Inside Diameter | 1 1/4 in. |
| Length | 1 in. |
| Length | 25.4 mm |
| Make | GAFF |
| Outside Diameter | 78.58 mm |
| Outside Diameter | 3 3/32 in. |
| Quantity per Truck | 4 |
| VMRS Code | 040-000-000 |
Features & Benefits
- Internal diameter of 1-1/4 inches matches cylinders needing specific bore size compatibility
- Outer diameter of 3-3/32 inches creates effective contact with master cylinder walls
- Cup length of 1 inch offers consistent fluid displacement within short bore units
- Helps retain hydraulic seal integrity when pressure is applied to the brake pedal
- Common in truck platforms using non-ABS hydraulic brake configurations
Meritor Brake Master Cylinder Piston Cup
A high-quality brake rebuild starts with components that match the original dimensions—the Meritor Brake Master Cylinder Piston Cup is one of those. Measuring 1 inch in length with an internal diameter of 1-1/4 inches and an outer diameter of 3-3/32 inches, this piston cup fits master cylinders that rely on traditional hydraulic brake actuation. It supports fluid pressure transfer inside the cylinder bore, allowing the system to push brake fluid to wheel cylinders or calipers. The Meritor GAFF20253 often sees use in light and medium-duty trucks undergoing brake master cylinder overhauls.
Product Attributes
| Inside Diameter | 1-1/4" |
| Length | 1" |
| Make | Various |
| Outside Diameter | 3-3/32" |
| Quantity Per Truck | 4 |
Meritor®, whose roots could be traced back to 1909, is backed by over 100 years of industry experience plus a massive portfolio of products for various industries. In 1998, it made several acquisitions, including Volvo Trucks' heavy vehicle manufacturing operation in Sweden, Euclid Industries, and Lucas Varity's Heavy Vehicle Braking Systems division. Such investments solidify Meritor's position as the leading global supplier of brakes, axles, drivelines, transmissions, suspensions, tire inflations systems, and a whole lot of parts, hardware, and accessories for the automotive, truck, trailer, rail cars, bus and coach, and many other applications. Its "Run with the Bull" global brand identity further strengthens its commitment to provide the industry with durable products, unparalleled service and support, and continuous innovation.
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