Product Description
Hydraulic brake master cylinder assembly designed for Mitsubishi electric forklifts. This direct replacement master cylinder features a 3/4 inch bore diameter and push rod piston configuration to generate service brake hydraulic pressure. Built as a factory-spec alternative for fleet maintenance and repairs. Compatible with Mitsubishi FB, FD, and FG series lift trucks. Part number 9124645300 with cross-reference options available.
Specifications
System Function
| Primary Function | Hydraulic pressure generation for service brake system |
| Bore Diameter | 3/4 inch (0.75 inch) |
| Piston Configuration | Push rod piston |
Compatibility
| Mitsubishi FB Series Models | FBC20A2BC2, FBC25A2BC2, FBC25EA2BC3, FBC30A2BC3 |
| Mitsubishi FD Series Models | FD20AF18A, FD20F18A, FD23AF18A, FD23F18A, FD25AF18A, FD25F18A, FD30AF14B, FD30F14B, FD35AAF26, FD35AF26 |
| Mitsubishi FG Series Models | FG10AF25, FG10F25, FG15AF25, FG15F25, FG18AF25, FG18F25, FG20AF17A, FG20F17A, FG25AF17A, FG25F17A, FG30AF13C, FG30F13C, FG35AAF13C, FG35AF13C |
Part Numbers
| Primary Part Number | 91246-45300 |
| Cross-Reference Part Numbers | 91246-55300, 91246-65300, 9124655300, 9124665300 |
| Manufacturer Prefix Variants | CT91246-45300, MB91246-45300, CT91246-55300, MB91246-55300, CT91246-65300, MB91246-65300 |
Frequently Asked Questions
Q: Which Mitsubishi forklift models are compatible with part number 91246-45300?
A: This master cylinder is compatible with Mitsubishi FB series (FBC20A2BC2, FBC25A2BC2), FD series (FD30AF14B), and FG series (FG20AF17A, FG30AF13C) electric lift trucks, plus additional models listed in specifications.
Q: What is the primary part number for this master cylinder?
A: The primary part number is 91246-45300. Cross-reference equivalents include 91246-55300 and 91246-65300 for direct replacement compatibility.
Q: What are the manufacturer prefix variants?
A: This part has manufacturer variants including CT91246-45300, MB91246-45300, CT91246-55300, MB91246-55300, CT91246-65300, and MB91246-65300.
Q: What are the bore diameter and operating specifications?
A: This hydraulic brake master cylinder has a 3/4 inch (0.75 inch) bore diameter with a push rod piston configuration that generates service brake hydraulic pressure.
Q: Is this a direct replacement for other master cylinder models?
A: Yes, part 91246-45300 is a direct replacement and cross-compatible with 91246-55300 and 91246-65300 across Mitsubishi FB, FD, and FG series forklift models.
Q: What maintenance practices extend master cylinder service life?
A: Regular hydraulic fluid replacements per manufacturer intervals, periodic seal inspections, and monitoring for internal corrosion extend cylinder lifespan. Contaminated or degraded hydraulic fluid accelerates wear on pistons and seals.
Q: How should this master cylinder be stored?
A: Store in a clean, dry environment protected from moisture and contaminants. Keep seals covered to prevent dust accumulation. Maintain storage temperature between 32°F and 104°F (0°C to 40°C).