Product Description
OEM master cylinder 91246-45300 is designed as a direct replacement for hydraulic brake systems in Caterpillar and Mitsubishi electric lift trucks. Key features include cast aluminum construction, steel piston, and internal return spring. The assembly converts mechanical pedal input to hydraulic pressure for service brake actuation. No cross-reference part numbers beyond 91246-15300 are confirmed; detailed port and bore dimensions require direct verification from the installed component.
Specifications
Hydraulic/Pneumatic
| Hydraulic Function | Converts mechanical input force to hydraulic pressure for brake actuation |
Material & Construction
| Body Material | Cast aluminum housing with precision-machined bore |
| Seal Materials | Brake fluid compatible synthetic elastomer seals; kit available under OEM service part |
Part Numbers
| OEM Part Number | 91246-45300 |
| Equivalent Part Numbers | 91246-15300 (noted for related Mitsubishi brake master cylinders; verify compatibility before interchange) |